Update jGui, ReplayStudio and Translations

jGui:
9e84e72 Fix inversion of empty selection

ReplayStudio:
ff12b1d Remove invalid filter from services files
c6a9325 Proper value wrapping in CatmullRomSplineInterpolator (fixes #8 GH)

.drone.yml

@@ -3,8 +3,10 @@ pipeline:
     image: plugins/git
     tags: true
   build:
-    image: openjdk:8
+    image: maven:3.3.9-jdk-8
     commands:
+      - curl --fail --create-dirs -o $HOME/.gradle/init.d/mirror.gradle https://maven.johni0702.de/config/gradle
+      - curl --fail --create-dirs -o $HOME/.m2/settings.xml https://maven.johni0702.de/config/maven
       - ./gradlew setupCIWorkspace
       - ./gradlew :build
   archive:

.drone.yml.sig

@@ -1 +1 @@
-eyJhbGciOiJIUzI1NiJ9.cGlwZWxpbmU6CiAgY2xvbmU6CiAgICBpbWFnZTogcGx1Z2lucy9naXQKICAgIHRhZ3M6IHRydWUKICBidWlsZDoKICAgIGltYWdlOiBvcGVuamRrOjgKICAgIGNvbW1hbmRzOgogICAgICAtIC4vZ3JhZGxldyBzZXR1cENJV29ya3NwYWNlCiAgICAgIC0gLi9ncmFkbGV3IDpidWlsZAogIGFyY2hpdmU6CiAgICBpbWFnZTogcGx1Z2lucy9zMwogICAgYWNsOiBwdWJsaWMtcmVhZAogICAgcmVnaW9uOiAidXMtZWFzdC0xIgogICAgYnVja2V0OiAicmVwbGF5bW9kIgogICAgcGF0aF9zdHlsZTogdHJ1ZQogICAgc291cmNlOiBidWlsZC9saWJzLyoKICAgIHN0cmlwX3ByZWZpeDogYnVpbGQvbGlicy8KICAgIHRhcmdldDogLwo.3ewpTHsEfDOaNv6osutaNlflSq_Qtf3wN7PoRnPvxsE
+eyJhbGciOiJIUzI1NiJ9.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.riE6lhwfdNUhI7LO2SxEKFOjzjaX40ne7Ae9gyP75KE

.gitmodules

@@ -5,3 +5,7 @@
 [submodule "ReplayStudio"]
 	path = ReplayStudio
 	url = https://github.com/ReplayMod/ReplayStudio
+
+[submodule "src/main/resources/assets/replaymod/lang"]
+	path = src/main/resources/assets/replaymod/lang
+	url = https://github.com/ReplayMod/Translations

build.gradle

@@ -1,7 +1,5 @@
 import groovy.json.JsonOutput
 
-import java.util.zip.ZipInputStream
-
 buildscript {
     repositories {
         mavenCentral()
@@ -39,6 +37,8 @@ minecraft {
     version = '1.8-11.14.4.1563'
     runDir = "eclipse"
     mappings = "snapshot_nodoc_20141130"
+    replace '@MOD_VERSION@', project.version
+    replace '@MC_VERSION@', project.minecraft.version
 }
 
 repositories {
@@ -59,7 +59,7 @@ configurations {
 dependencies {
     compile 'org.projectlombok:lombok:1.16.4'
 
-    compile 'org.spongepowered:mixin:0.4.3'
+    compile 'org.spongepowered:mixin:0.6.8-SNAPSHOT'
     shade 'com.googlecode.mp4parser:isoparser:1.1.7'
     shade 'org.apache.commons:commons-exec:1.3'
     shade 'com.google.apis:google-api-services-youtube:v3-rev178-1.22.0'
@@ -101,27 +101,6 @@ jar {
     }
     from noticeDir
 
-    def langDir = file("$buildDir/languages")
-    doFirst {
-	try {
-        langDir.deleteDir()
-        langDir.mkdirs()
-        def dir = new File(langDir, 'assets/replaymod/lang/')
-        dir.mkdirs()
-        def zip = new ZipInputStream(new URL('http://replaymod.com/api/grab_languages').openStream())
-        def e;
-        while ((e = zip.nextEntry) != null) {
-            new File(dir, e.getName()) << zip
-            zip.closeEntry()
-        }
-	} catch(Exception e) {
-	    e.printStackTrace();
-	}
-    }
-    from (langDir) {
-        exclude '**/en_US.lang'
-    }
-
     from ({shade().collect { it.isDirectory() ? it : zipTree(it) }}) {
         exclude '**/NOTICE*'
         // exclude everything taken in from jGui for running the mod in a dev environment
@@ -186,6 +165,13 @@ sourceSets {
         }
         refMap = "mixins.replaymod.refmap.json"
     }
+    integrationTest {
+        compileClasspath += main.runtimeClasspath + main.output
+        java {
+            srcDir file('src/integration-test/java')
+        }
+        resources.srcDir file('src/integration-test/resources')
+    }
 }
 
 task copySrg(type: Copy, dependsOn: 'genSrgs') {
@@ -197,6 +183,30 @@ setupDecompWorkspace.dependsOn copySrg
 setupDevWorkspace.dependsOn copySrg
 project.tasks.idea.dependsOn copySrg
 
+task runIntegrationTest(type: JavaExec, dependsOn: ["makeStart", "jar"]) {
+    main = 'GradleStart'
+    standardOutput = System.out
+    errorOutput = System.err
+    workingDir file(minecraft.runDir)
+
+    def testDir = new File(minecraft.runDir, "integration-test")
+    doFirst {
+        testDir.deleteDir()
+        testDir.mkdirs()
+    }
+
+    doLast {
+        testDir.deleteDir()
+    }
+
+    afterEvaluate {
+        def runClient = tasks.getByName("runClient")
+        runIntegrationTest.jvmArgs = runClient.jvmArgs + "-Dfml.noGrab=true"
+        runIntegrationTest.args = runClient.args + "--gameDir" + testDir.canonicalPath
+        runIntegrationTest.classpath runClient.classpath + sourceSets.integrationTest.output
+    }
+}
+
 def generateVersionsJson() {
     // List all tags
     def stdout = new ByteArrayOutputStream()

docs/content.md

@@ -2,7 +2,14 @@
 ## Installing the Replay Mod [replaymod]
 The **ReplayMod** requires **Minecraft Forge** to be installed.
 
-For the use with the **Replay Mod**, we recommend using Forge Version `1.8-11.14.3.1450`, which can be downloaded [here](http://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.8.html)
+Depending on your **Replay Mod** version we recommend the following **Forge** versions:
+
+- Replay Mod 2.0.0 or later for Minecraft 1.11: Forge [1.11-13.19.1.2189](https://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.11.html)
+- Replay Mod 2.0.0 or later for Minecraft 1.10.2: Forge [1.10.2-12.18.2.2099](https://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.10.2.html)
+- Replay Mod 2.0.0 or later for Minecraft 1.9.4: Forge [1.9.4-12.17.0.1976](https://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.9.4.html)
+- Replay Mod 2.0.0 or later for Minecraft 1.8: Forge [1.8-11.14.4.1563](https://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.8.html)
+- Replay Mod 1.0.8 or older for Minecraft 1.8: Forge [1.8-11.14.3.1450](http://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.8.html)
+
 Other Forge Versions might, but don't necessarily work.
 
 If you don't know how to install Forge, follow [this tutorial](https://www.youtube.com/watch?v=4i7-RystzC4).
@@ -25,6 +32,10 @@ Next, download this **Batch Script** to quickly install FFmpeg: <https://replaym
 Put the downloaded script into the folder where you extracted FFmpeg and run itt by double-clicking it.
 If you see a success message in the console, you've sucessfully installed **FFmpeg**!
 
+Alternatively, starting with ReplayMod 2.0.0-b5, you can also extract the downloaded `.7z` file into a `ffmpeg` folder
+(you have to create it, it doesn't exist by default) in your `.minecraft` folder. No need to run any **Batch Script**.
+The FFmpeg executable should end up at `.minecraft/ffmpeg/bin/ffmpeg.exe`.
+
 ### Mac OSX [mac]
 On OSX, you can install **FFmpeg** with **[Homebrew](http://brew.sh/)** using `brew install ffmpeg`.
 
@@ -37,26 +48,35 @@ If in doubt, consult the documentation of your distribution.
 ## Compatibility with other Mods [compatibility]
 ### General information [general]
 In General, the Replay Mod _should_ be compatible with most Forge Mods.
-However, due to the way that recording works, many Mods that add new Blocks, Mobs or Game Mechanics are not supported.  
-Mods that simply modify the client (like the [PixelCam Mod](http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2327429-pixelcam-camera-studio-for-minecraft-1-8)
-or the [CommandGroups Mod](http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2443430-command-groups-mod-order-label-and-color-command)) usually work.
-
-### Optifine [optifine]
-The **Replay Mod** is compatible with `Optifine 1.8.0 HD U D5`, which can be downloaded at <https://optifine.net/downloads>.  
-Other Optifine versions for Minecraft 1.8.0 might, but don't have to be compatible as well.
-
-> **Warning:** If you have Optifine installed, you **can not render videos** from within the Replay Mod.  
-This might change in future Replay Mod versions.
 
 ### Shaders Mod [shaders]
-You can use the Replay Mod together with [karyonix' Shaders Mod](http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1286604-shaders-mod-updated-by-karyonix),
+[Karyonix' Shaders Mod](http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1286604-shaders-mod-updated-by-karyonix)
-but rendering videos results in **possible crashes** and **malformed videos**.
+is no longer compatible with Minecraft Forge starting with 1.9.4. As such it is not compatible with the Replay Mod either.
-Therefore, you have to **uninstall the Shaders Mod before rendering**.
+Please use [Optifine](https://optifine.net/) instead.
+
+### Custom Main Menu [custom-main-menu]
+The [Custom Main Menu](https://mods.curse.com/mc-mods/minecraft/226406-custom-main-menu) mod is often used in mod packs to customize their Main Menu with a button layout fitting the background image, links to their website / bug tracker and similar.
+If you are familiar with it, the button ids for the Replay Mod are: **17890234** (text: `replaymod.gui.replayviewer`), **17890237** (text: `replaymod.gui.replayeditor`) and **17890236** (text: `replaymod.gui.replaycenter`)
+
+Due to the nature of this Custom Main Menu mod, buttons added to the Main Menu by 3rd party mods like the **Replay Mod** will not show up by default.  
+Thus, to access the Replay Viewer/Editor/Center, you need to manually configure the position for those buttons.  
+To do so, you need to modify the Custom Main Menu configuration file.
+Usually, you can find it at `.minecraft/config/CustomMainMenu/mainmenu.json` (if you're using a mod pack launcher, it normally has its own .minecraft folder).  
+For an explanation of this config file, have a look at Custom Main Menu's page.
+
+You can find a list of already modified config files [here](https://gist.github.com/Johni0702/3f3fab81dbf7ada83d045d9fe8f345aa).
 
 ## Troubleshooting [troubleshooting]
 If you need help installing the **Replay Mod** or **FFmpeg**, please read [this forum thread](https://www.replaymod.com/forum/thread/220) 
 by [bela333](https://www.replaymod.com/user/bela333) - it covers most of the problems that users encountered so far.
 
+## Settings [settings]
+To access the **Replay Mod Settings** from the Main Menu click the **"Mods"** button, select the **Replay Mod** from the list and
+the click the **"Config"** button.
+
+When in a Replay, you can either bind a hotkey to the **Replay Mod Settings** in Minecraft's Control settings
+or use the hotkey GUI by clicking on the arrow button in the lower left corner.
+
 # Recording [recording]
 ![](img/recording-indicator.jpg)
 The **Recording Indicator** which is displayed while recording
@@ -88,6 +108,8 @@ You can move through block similar to Spectator Mode.
 
 Using the **Mouse Wheel**, you can modify your flying speed. Scrolling **up** causes you to fly faster, while scrolling **down** slows you down.
 
+If you prefer the camera to be controlled similar to vanilla Creative Mode, you can change that in the **Replay Settings**.
+
 ### Camera Roll [roll]
 ![](img/camera-tilted.jpg)
 A Screenshot taken with a **tilted camera**
@@ -251,13 +273,15 @@ The **Keyframe Repository** with two **Path Presets**
 
 Using the `X` key, you can open the **Keyframe Repository**. Every Replay File has a separate Keyframe Repository which can contain several **Keyframe Presets**.
 
-To save the Keyframes currently on your Timeline, click the **"Save current Path"** button.
+To save the Keyframes currently on your Timeline, click the **"Save as..."** button.
-You can change the Preset's name using the Text Input Field in the upper right corner.  
+You can change a Preset's name, select it from the list and click the **"Rename"** button.
-To load a Keyframe Preset, select a Preset from the list on the left side and click the **"Load"** button.  
+To load a Keyframe Preset, select a Preset from the list and click the **"Load"** button.
 Using the **"Remove"** button, you can permanently delete a Keyframe Preset from the **Keyframe Repository**.
 
 ## Custom Objects [objects]
 
+> Custom Objects are not available in the 2.0.0 versions. They are expected to return eventually.
+
 [YouTube](_Xdpg828fbE)
 
 ### Introduction [introduction]
@@ -416,12 +440,10 @@ There are **7 Encoding Presets** you can choose from:
 
 ### Advanced Settings [advanced]
 ![](img/rendersettings-advanced.jpg)
-The **Advanced Render Settings** Screen
+The **Advanced Render Settings**
 
-By clicking the **"Advanced Settings" Button** in the lower right corner, you can access more settings.
+#### Render Nametags [nametags]
-
+If you don't want to see Entity's Nametags in the rendered video, simply un-tick the checkbox. Hidden Nametags also include Nametags of **Armor Stands** and **Mobs**, **not only Players**!
-#### Hide Nametags [nametags]
-If you don't want to see Entity's Nametags in the rendered video, simply tick the checkbox. Hidden Nametags also include Nametags of **Armor Stands** and **Mobs**, **not only Players**!
 
 #### Stabilize Camera [stabilize]
 This setting is only applicable for **Cubic Rendering** and **Equirectangular Rendering**.  
@@ -443,14 +465,14 @@ Using a **Video Editing Software** like **Adobe After Effects** or **Sony Vegas*
 
 ### Command Line Settings [commandline]
 ![](img/rendersettings-commandline.jpg)
-The **Command Line Render Settings** Screen
+The **Command Line Render Settings**
 
 
 > **Note**: This is for advanced users only. If you do not know what your're doing, leave these settings as they are.
 
 The **Replay Mod** runs [FFmpeg](http://ffmpeg.org/) via the **Command Line** to encode videos.
 
-You can customize both the **executed Command** and the **Command Line Arguments** in the **Command Line Settings** Tag of the **Render Settings Screen**.
+You can customize both the **executed Command** and the **Command Line Arguments** in the **Command Line Settings** part of the **Render Settings Screen**.
 
 #### Custom Command [command]
 If you leave the left input field blank, `ffmpeg` will be used as **command**. If you haven't set your **PATH variable** to link to your FFmpeg distribution, simply enter the full path to your FFmpeg executable (e.g. `C:/ffmpeg/ffmpeg.exe` or `/usr/local/bin/ffmpeg`).
@@ -532,7 +554,7 @@ By clicking on a player's **Name or Head**, you can **spectate** this player.
 
 Next to each player, there's a **checkbox** using which you can toggle the player's **visibility**.
 This way, you can hide certain players from the Replay.  
-Above the individual checkboxes, there are two checkbox buttons - one to **hide all players** and one to **show all players**.
+Below the individual checkboxes, there are two checkbox buttons - one to **hide all players** and one to **show all players**.
 
 If you want to **save the player visibility settings**, check **"Remember Hidden Players" checkbox**.
 If checked, invisible players will stay invisible after closing the Replay (this can of course be reverted),

src/integration-test/java/IntegrationTest.java

@@ -0,0 +1,30 @@
+import org.apache.commons.io.FileUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Entry point for running integration tests from within the IDE.
+ * This is <b>not</b> called when running integration tests directly from gradle.
+ */
+public class IntegrationTest {
+    public static void main(String[] args) throws Throwable {
+        // Prevent MC from grabbing our mouse during the test (it's not needed)
+        System.setProperty("fml.noGrab", "true");
+
+        // Make sure the test folder exists and is fresh
+        File gameDir = new File(System.getProperty("user.dir"), "integration-test");
+        if (gameDir.exists()) {
+            FileUtils.forceDelete(gameDir);
+        }
+        FileUtils.forceMkdir(gameDir);
+
+        // Set game dir to test folder and call regular entry point
+        List<String> argsList = new ArrayList<>(Arrays.asList(args));
+        argsList.add("--gameDir");
+        argsList.add(gameDir.getCanonicalPath());
+        GradleStart.main(argsList.toArray(new String[argsList.size()]));
+    }
+}

src/integration-test/java/com/replaymod/core/AbstractTask.java

@@ -0,0 +1,342 @@
+package com.replaymod.core;
+
+import com.google.common.collect.Iterables;
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.SettableFuture;
+import de.johni0702.minecraft.gui.container.AbstractGuiOverlay;
+import de.johni0702.minecraft.gui.container.AbstractGuiScreen;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiOverlay;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiElement;
+import de.johni0702.minecraft.gui.element.GuiTexturedButton;
+import de.johni0702.minecraft.gui.popup.AbstractGuiPopup;
+import de.johni0702.minecraft.gui.utils.Consumer;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.settings.KeyBinding;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.FMLCommonHandler;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.gameevent.TickEvent;
+import org.lwjgl.input.Keyboard;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.concurrent.TimeoutException;
+
+import static com.replaymod.core.ReplayModIntegrationTest.LOGGER;
+import static com.replaymod.core.utils.Utils.addCallback;
+
+public abstract class AbstractTask implements Task {
+    public static Task create(Consumer<AbstractTask> init) {
+        return new AbstractTask() {
+            @Override
+            protected void init() {
+                init.consume(this);
+            }
+        };
+    }
+
+    public static final Minecraft mc = Minecraft.getMinecraft();
+    public final ReplayMod core = ReplayMod.instance;
+    public SettableFuture<Void> future;
+
+    @Override
+    public ListenableFuture<Void> execute() {
+        future = SettableFuture.create();
+
+        FMLCommonHandler.instance().bus().register(this);
+        MinecraftForge.EVENT_BUS.register(this);
+        addCallback(future, success -> {
+            FMLCommonHandler.instance().bus().unregister(this);
+            MinecraftForge.EVENT_BUS.unregister(this);
+        }, error -> {});
+
+        init();
+
+        return future;
+    }
+
+    protected void init() {}
+
+    protected void runLater(Runnable runnable) {
+        core.runLater(() -> {
+            try {
+                runnable.run();
+            } catch (Throwable t) {
+                future.setException(t);
+            }
+        });
+    }
+
+    public void expectGuiClosed(Runnable onClosed) {
+        expectGuiClosed0(10, onClosed);
+    }
+
+    public void expectGuiClosed(int timeout, Runnable onClosed) {
+        expectGuiClosed0(timeout, onClosed);
+    }
+
+    private void expectGuiClosed0(int timeout, Runnable onClosed) {
+        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
+        class EventHandler {
+            final net.minecraft.client.gui.GuiScreen currentScreen = mc.currentScreen;
+            int framesPassed;
+
+            @SubscribeEvent
+            public void onGuiOpen(TickEvent.RenderTickEvent event) {
+                if (event.phase != TickEvent.Phase.START) return;
+                if (currentScreen != mc.currentScreen) {
+                    FMLCommonHandler.instance().bus().unregister(this);
+                    onClosed.run();
+                } else {
+                    if (framesPassed < timeout) {
+                        framesPassed++;
+                    } else {
+                        Object gui = (gui = GuiScreen.from(currentScreen)) == null ? currentScreen : gui;
+                        Exception e = new TimeoutException("Timeout while waiting for " + gui + " to be closed.");
+                        e.setStackTrace(Arrays.copyOfRange(stackTrace, 3, stackTrace.length));
+                        future.setException(e);
+                    }
+                }
+            }
+        }
+        FMLCommonHandler.instance().bus().register(new EventHandler());
+    }
+
+    public void expectPopupClosed(Runnable onClosed) {
+        expectPopupClosed0(10, onClosed);
+    }
+
+    public void expectPopupClosed(int timeout, Runnable onClosed) {
+        expectPopupClosed0(timeout, onClosed);
+    }
+
+    private void expectPopupClosed0(int timeout, Runnable onClosed) {
+        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
+        AbstractGuiPopup popup = getPopup(mc.currentScreen);
+        if (popup == null) {
+            throw new IllegalStateException("No popup found.");
+        }
+        class EventHandler {
+            int framesPassed;
+
+            @SubscribeEvent
+            public void onGuiOpen(TickEvent.RenderTickEvent event) {
+                if (event.phase != TickEvent.Phase.START) return;
+                if (getPopup(mc.currentScreen) != popup) {
+                    FMLCommonHandler.instance().bus().unregister(this);
+                    onClosed.run();
+                } else {
+                    if (framesPassed < timeout) {
+                        framesPassed++;
+                    } else {
+                        Exception e = new TimeoutException("Timeout while waiting for " + popup + " to be closed.");
+                        e.setStackTrace(Arrays.copyOfRange(stackTrace, 3, stackTrace.length));
+                        future.setException(e);
+                    }
+                }
+            }
+        }
+        FMLCommonHandler.instance().bus().register(new EventHandler());
+    }
+
+    private AbstractGuiPopup getPopup(net.minecraft.client.gui.GuiScreen minecraft) {
+        GuiContainer<?> container = GuiOverlay.from(minecraft);
+        if (container == null) {
+            container = GuiScreen.from(minecraft);
+        }
+        if (container != null) {
+            while (container.getContainer() != null) {
+                container = container.getContainer();
+            }
+            GuiElement popup = Iterables.getLast(container.getChildren());
+            if (popup instanceof AbstractGuiPopup) {
+                return (AbstractGuiPopup) popup;
+            }
+        }
+        return null;
+    }
+
+    public <T> void expectGui(Class<T> guiClass, Consumer<T> onOpen) {
+        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
+        class EventHandler {
+            net.minecraft.client.gui.GuiScreen currentScreen;
+            int framesPassed;
+
+            @SubscribeEvent
+            public void onGuiOpen(TickEvent.RenderTickEvent event) {
+                if (event.phase != TickEvent.Phase.START) return;
+                if (currentScreen != mc.currentScreen) {
+                    currentScreen = mc.currentScreen;
+                    framesPassed = 0;
+                }
+                if (framesPassed < 10) {
+                    framesPassed++;
+                    return;
+                }
+
+                FMLCommonHandler.instance().bus().unregister(this);
+
+                Object foundGui = null;
+                if (AbstractGuiScreen.class.isAssignableFrom(guiClass)) {
+                    AbstractGuiScreen guiScreen = GuiScreen.from(currentScreen);
+                    if (guiClass.isInstance(guiScreen)) {
+                        onOpen.consume(guiClass.cast(guiScreen));
+                        return;
+                    }
+                    foundGui = guiScreen;
+                } else if (AbstractGuiOverlay.class.isAssignableFrom(guiClass)) {
+                    AbstractGuiOverlay guiScreen = GuiOverlay.from(currentScreen);
+                    if (guiClass.isInstance(guiScreen)) {
+                        onOpen.consume(guiClass.cast(guiScreen));
+                        return;
+                    }
+                    foundGui = guiScreen;
+                } else if (AbstractGuiPopup.class.isAssignableFrom(guiClass)) {
+                    AbstractGuiPopup popup = getPopup(currentScreen);
+                    if (guiClass.isInstance(popup)) {
+                        onOpen.consume(guiClass.cast(popup));
+                        return;
+                    }
+                } else {
+                    if (guiClass.isInstance(currentScreen)) {
+                        onOpen.consume(guiClass.cast(currentScreen));
+                        return;
+                    }
+                }
+                class UnexpectedGuiException extends Exception {
+                    UnexpectedGuiException(Object foundGui) {
+                        super("Expected instance of " + guiClass + " but found " + foundGui);
+                        setStackTrace(Arrays.copyOfRange(stackTrace, 2, stackTrace.length));
+                    }
+                }
+                future.setException(new UnexpectedGuiException(foundGui == null ? currentScreen : foundGui));
+            }
+        }
+        FMLCommonHandler.instance().bus().register(new EventHandler());
+    }
+
+    private void clickNow(int x, int y) {
+        try {
+            Method method = net.minecraft.client.gui.GuiScreen.class
+                    .getDeclaredMethod("mouseClicked", int.class, int.class, int.class);
+            method.setAccessible(true);
+            method.invoke(mc.currentScreen, x, y, 0);
+        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+            future.setException(e);
+        }
+    }
+
+    public void click(int x, int y) {
+        runLater(() -> {
+            LOGGER.info("Clicking at {}/{}", x, y);
+            clickNow(x, y);
+        });
+    }
+
+    private void dragNow(int x, int y) {
+        try {
+            Method method = net.minecraft.client.gui.GuiScreen.class
+                    .getDeclaredMethod("mouseClickMove", int.class, int.class, int.class, long.class);
+            method.setAccessible(true);
+            method.invoke(mc.currentScreen, x, y, 0, 0);
+        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+            future.setException(e);
+        }
+    }
+
+    public void drag(int x, int y) {
+        runLater(() -> {
+            LOGGER.info("Dragging to {}/{}", x, y);
+            dragNow(x, y);
+        });
+    }
+
+    public void click(GuiButton button) {
+        runLater(() -> {
+            if (!button.isEnabled()) {
+                future.setException(new IllegalStateException("Button is disabled: " + button.getLabel()));
+                return;
+            }
+            LOGGER.info("Clicking button {}", button.getLabel());
+            button.onClick();
+        });
+    }
+
+    public void click(GuiTexturedButton button) {
+        runLater(() -> {
+            if (!button.isEnabled()) {
+                future.setException(new IllegalStateException("Button is disabled: " + button.getTexture()));
+                return;
+            }
+            LOGGER.info("Clicking textured button {}", button.getTexture());
+            button.onClick();
+        });
+    }
+
+    public void click(String buttonText) {
+        runLater(() -> {
+            LOGGER.info("Clicking button {}", buttonText);
+            try {
+                Field field = net.minecraft.client.gui.GuiScreen.class.getDeclaredField("buttonList");
+                field.setAccessible(true);
+                @SuppressWarnings("unchecked")
+                List<net.minecraft.client.gui.GuiButton> buttonList = (List)
+                        field.get(mc.currentScreen);
+
+                net.minecraft.client.gui.GuiButton button = null;
+                for (net.minecraft.client.gui.GuiButton guiButton : buttonList) {
+                    if (guiButton.displayString.equals(buttonText)) {
+                        button = guiButton;
+                    }
+                }
+                if (button == null) {
+                    future.setException(new NoSuchElementException("No button with label: " + buttonText));
+                    return;
+                }
+
+                clickNow(button.xPosition + 5, button.yPosition + 5);
+            } catch (IllegalAccessException | NoSuchFieldException e) {
+                future.setException(e);
+            }
+        });
+    }
+
+    public void type(String string) {
+        for (char c : string.toCharArray()) {
+            press(c, Keyboard.getKeyIndex(String.valueOf(c).toUpperCase()));
+        }
+    }
+
+    public void press(int keyCode) {
+        String keyName = Keyboard.getKeyName(keyCode);
+        char character = keyName.length() == 1 ? keyName.charAt(0) : '\0';
+        press(character, keyCode);
+    }
+
+    public void press(char character, int keyCode) {
+        runLater(() -> {
+            LOGGER.info("Pressing key {}", Keyboard.getKeyName(keyCode));
+            if (mc.currentScreen == null || mc.currentScreen.allowUserInput) {
+                KeyBinding.onTick(keyCode);
+                FMLCommonHandler.instance().fireKeyInput();
+            }
+            if (mc.currentScreen != null) {
+                try {
+                    Method method = net.minecraft.client.gui.GuiScreen.class
+                            .getDeclaredMethod("keyTyped", char.class, int.class);
+                    method.setAccessible(true);
+                    method.invoke(mc.currentScreen, character, keyCode);
+                } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+                    future.setException(e);
+                }
+            }
+        });
+    }
+}

src/integration-test/java/com/replaymod/core/CompositeTask.java

@@ -0,0 +1,41 @@
+package com.replaymod.core;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.SettableFuture;
+
+import static com.replaymod.core.ReplayModIntegrationTest.LOGGER;
+import static com.replaymod.core.utils.Utils.addCallback;
+
+public class CompositeTask implements Task {
+    private SettableFuture<Void> future;
+    protected final Task[] children;
+
+    public CompositeTask(Task[] children) {
+        this.children = children;
+    }
+
+    @Override
+    public ListenableFuture<Void> execute() {
+        future = SettableFuture.create();
+        executeChild(0);
+        return future;
+    }
+
+    private void executeChild(int childIndex) {
+        if (future.isDone()) return;
+        if (childIndex < children.length) {
+            ReplayMod.instance.runLater(() -> {
+                try {
+                    Task task = children[childIndex];
+                    LOGGER.info("Running task {}", task);
+                    ListenableFuture<Void> childFuture = task.execute();
+                    addCallback(childFuture, done -> executeChild(childIndex + 1), err -> future.setException(err));
+                } catch (Throwable t) {
+                    future.setException(t);
+                }
+            });
+        } else {
+            future.set(null);
+        }
+    }
+}

src/integration-test/java/com/replaymod/core/ReplayModIntegrationTest.java

@@ -0,0 +1,73 @@
+package com.replaymod.core;
+
+import com.replaymod.core.regression.RegressionTest60;
+import com.replaymod.core.regression.RegressionTest61;
+import com.replaymod.core.regression.RegressionTest62;
+import com.replaymod.extra.DownloadOpenEye;
+import com.replaymod.online.SkipLogin;
+import com.replaymod.recording.CreateSPWorld;
+import com.replaymod.recording.ExitSPWorld;
+import com.replaymod.replay.ExitReplay;
+import com.replaymod.replay.LoadReplay;
+import com.replaymod.replay.OpenReplayViewer;
+import net.minecraft.client.Minecraft;
+import net.minecraftforge.fml.common.FMLCommonHandler;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import org.apache.logging.log4j.Logger;
+
+import static com.replaymod.core.AbstractTask.mc;
+import static com.replaymod.core.ReplayModIntegrationTest.MOD_ID;
+import static com.replaymod.core.utils.Utils.addCallback;
+
+/**
+ * Helper mod that initiates the integration tests.
+ */
+@Mod(modid = MOD_ID)
+public class ReplayModIntegrationTest {
+    public static final String MOD_ID = "replaymod-integration-test";
+
+    public static Logger LOGGER;
+
+    @Mod.EventHandler
+    public void init(FMLPreInitializationEvent event) {
+        LOGGER = event.getModLog();
+
+        // Make sure the game window doesn't have to remain in focus during the test
+        mc.gameSettings.pauseOnLostFocus = false;
+
+        runTasks(
+                new SkipLogin(),
+                new DownloadOpenEye(),
+                new CreateSPWorld(),
+                new Wait(5000),
+                new ExitSPWorld(),
+                new OpenReplayViewer(),
+                new LoadReplay(),
+
+                new RegressionTest60(),
+                new RegressionTest61(),
+                new RegressionTest62(),
+
+                // new AbstractTask() {}, // Uncomment to not exit on success (useful for writing more tests)
+                new ExitReplay()
+        );
+    }
+
+    private void runTasks(Task... tests) {
+        addCallback(new CompositeTask(tests).execute(), success -> {
+            if (!Minecraft.getMinecraft().hasCrashed) {
+                LOGGER.info("===================================================");
+                LOGGER.info("=                 ALL TESTS PASSED                =");
+                LOGGER.info("===================================================");
+                FMLCommonHandler.instance().exitJava(0, false);
+            }
+        }, error -> {
+            LOGGER.error("Failed task:", error);
+            LOGGER.error("===================================================");
+            LOGGER.error("=                  TEST FAILED                    =");
+            LOGGER.error("===================================================");
+            FMLCommonHandler.instance().exitJava(1, false);
+        });
+    }
+}

src/integration-test/java/com/replaymod/core/Task.java

@@ -0,0 +1,35 @@
+package com.replaymod.core;
+
+import com.google.common.util.concurrent.ListenableFuture;
+
+public interface Task {
+    ListenableFuture<Void> execute();
+
+    static Task click(int x, int y) {
+        return AbstractTask.create(task -> {
+            task.click(x, y);
+            task.runLater(() -> task.future.set(null));
+        });
+    }
+
+    static Task drag(int x, int y) {
+        return AbstractTask.create(task -> {
+            task.drag(x, y);
+            task.runLater(() -> task.future.set(null));
+        });
+    }
+
+    static Task pressKey(int keyCode) {
+        return AbstractTask.create(task -> {
+            task.press(keyCode);
+            task.runLater(() -> task.future.set(null));
+        });
+    }
+
+    static Task pressKey(char character, int keyCode) {
+        return AbstractTask.create(task -> {
+            task.press(character, keyCode);
+            task.runLater(() -> task.future.set(null));
+        });
+    }
+}

src/integration-test/java/com/replaymod/core/Utils.java

@@ -0,0 +1,9 @@
+package com.replaymod.core;
+
+public class Utils {
+    public static void times(int x, Runnable runnable) {
+        for (int i = 0; i < x; i++) {
+            runnable.run();
+        }
+    }
+}

src/integration-test/java/com/replaymod/core/Wait.java

@@ -0,0 +1,21 @@
+package com.replaymod.core;
+
+public class Wait extends AbstractTask {
+    private final int duration;
+
+    public Wait(int duration) {
+        this.duration = duration;
+    }
+
+    @Override
+    protected void init() {
+        new Thread(() -> {
+            try {
+                Thread.sleep(duration);
+                runLater(() -> future.set(null));
+            } catch (InterruptedException e) {
+                runLater(() -> future.setException(e));
+            }
+        }).start();
+    }
+}

src/integration-test/java/com/replaymod/core/regression/RegressionTest60.java

@@ -0,0 +1,59 @@
+package com.replaymod.core.regression;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.core.CompositeTask;
+import com.replaymod.core.Task;
+import com.replaymod.replay.SpectatePlayer;
+import com.replaymod.replay.overlay.OverlayGui;
+import com.replaymod.simplepathing.GuiPathingTasks;
+import com.replaymod.simplepathing.gui.GuiEditKeyframe;
+import org.lwjgl.input.Keyboard;
+
+import static com.replaymod.core.AbstractTask.mc;
+import static com.replaymod.core.Utils.times;
+
+/**
+ * Regression test: #60 Crash in path preview when two spectator keyframes are closer than 50ms
+ */
+public class RegressionTest60 extends CompositeTask {
+    public RegressionTest60() {
+        super(new Task[]{
+                new SpectatePlayer(),
+                OverlayGui.whileOpened(
+                        // Place first spectator keyframe
+                        new GuiPathingTasks.ClickPositionKeyframeButton(),
+                        // Place second spectator keyframe
+                        Task.click(130, 50),
+                        new GuiPathingTasks.ClickPositionKeyframeButton(),
+                        // Move second keyframe to 20ms on the keyframe timeline
+                        AbstractTask.create(task -> {
+                            // Double click keyframe
+                            task.click(130, 50);
+                            task.click(130, 50);
+                            task.expectGui(GuiEditKeyframe.Spectator.class, gui -> {
+                                // Set ms field to 20
+                                task.click(mc.currentScreen.width / 2 + 80, mc.currentScreen.height / 2);
+                                times(4, () -> task.press(Keyboard.KEY_BACK));
+                                task.type("20");
+                                // Set other fields to 0
+                                times(2, () -> {
+                                    task.press(Keyboard.KEY_TAB);
+                                    times(4, () -> task.press(Keyboard.KEY_BACK));
+                                    task.press(Keyboard.KEY_0);
+                                });
+                                task.click(gui.saveButton);
+                                task.expectPopupClosed(() -> task.future.set(null));
+                            });
+                        }),
+                        // Place second spectator keyframe
+                        new GuiPathingTasks.ClickPositionKeyframeButton()
+                ),
+                // Stop spectating player
+                new SpectatePlayer.End(),
+                // Enable path preview
+                Task.pressKey(Keyboard.KEY_H),
+                new GuiPathingTasks.ClearKeyframeTimeline(),
+                Task.pressKey(Keyboard.KEY_H),
+        });
+    }
+}

src/integration-test/java/com/replaymod/core/regression/RegressionTest61.java

@@ -0,0 +1,35 @@
+package com.replaymod.core.regression;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.core.CompositeTask;
+import com.replaymod.core.Task;
+import com.replaymod.replay.overlay.OverlayGui;
+import com.replaymod.simplepathing.GuiPathingTasks;
+import com.replaymod.simplepathing.gui.GuiEditKeyframe;
+
+/**
+ * Regression test: #61 NPE when saving in edit keyframe gui of last keyframe
+ */
+public class RegressionTest61 extends CompositeTask {
+    public RegressionTest61() {
+        super(new Task[]{
+                OverlayGui.whileOpened(
+                        // Place keyframe
+                        Task.click(130, 50),
+                        new GuiPathingTasks.ClickPositionKeyframeButton(),
+                        AbstractTask.create(task -> {
+                            // Double click keyframe
+                            task.click(130, 50);
+                            task.click(130, 50);
+                            task.expectGui(GuiEditKeyframe.Position.class, gui -> {
+                                task.click(gui.saveButton);
+                                task.expectPopupClosed(() -> task.future.set(null));
+                            });
+                        }),
+                        // Place second spectator keyframe
+                        new GuiPathingTasks.ClickPositionKeyframeButton()
+                ),
+                new GuiPathingTasks.ClearKeyframeTimeline(),
+        });
+    }
+}

src/integration-test/java/com/replaymod/core/regression/RegressionTest62.java

@@ -0,0 +1,28 @@
+package com.replaymod.core.regression;
+
+import com.replaymod.core.CompositeTask;
+import com.replaymod.core.Task;
+import com.replaymod.replay.overlay.OverlayGui;
+import com.replaymod.simplepathing.GuiPathingTasks;
+
+/**
+ * Regression test: #62 Swapping the only two existing keyframes causes NPE
+ */
+public class RegressionTest62 extends CompositeTask {
+    public RegressionTest62() {
+        super(new Task[]{
+                OverlayGui.whileOpened(
+                        // Place first keyframe
+                        Task.click(130, 50),
+                        new GuiPathingTasks.ClickPositionKeyframeButton(),
+                        // Place second keyframe
+                        Task.click(150, 50),
+                        new GuiPathingTasks.ClickPositionKeyframeButton(),
+                        // Move first keyframe past second keyframe
+                        Task.click(130,50),
+                        Task.drag(170,50)
+                ),
+                new GuiPathingTasks.ClearKeyframeTimeline()
+        });
+    }
+}

src/integration-test/java/com/replaymod/extra/DownloadOpenEye.java

@@ -0,0 +1,25 @@
+package com.replaymod.extra;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.extras.OpenEyeExtra;
+import net.minecraftforge.fml.common.Loader;
+
+import java.io.File;
+import java.nio.file.NoSuchFileException;
+
+public class DownloadOpenEye extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(OpenEyeExtra.OfferGui.class, offerGui -> {
+            click(offerGui.yesButton);
+            expectGuiClosed(20 * 1000, () -> {
+                File targetFile = new File(mc.mcDataDir, "mods/" + Loader.MC_VERSION + "/OpenEye.jar");
+                if (!targetFile.exists()) {
+                    future.setException(new NoSuchFileException(targetFile.getAbsolutePath()));
+                } else {
+                    future.set(null);
+                }
+            });
+        });
+    }
+}

src/integration-test/java/com/replaymod/online/SkipLogin.java

@@ -0,0 +1,14 @@
+package com.replaymod.online;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.online.gui.GuiLoginPrompt;
+
+public class SkipLogin extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(GuiLoginPrompt.class, gui -> {
+            click(gui.cancelButton);
+            expectGuiClosed(() -> future.set(null));
+        });
+    }
+}

src/integration-test/java/com/replaymod/recording/CreateSPWorld.java

@@ -0,0 +1,32 @@
+package com.replaymod.recording;
+
+import com.replaymod.core.AbstractTask;
+import net.minecraft.client.gui.GuiCreateWorld;
+import net.minecraft.client.gui.GuiMainMenu;
+import net.minecraft.client.gui.GuiSelectWorld;
+import net.minecraftforge.client.event.RenderGameOverlayEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+
+public class CreateSPWorld extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(GuiMainMenu.class, mainMenu -> {
+            click("Singleplayer");
+            expectGui(GuiSelectWorld.class, selectWorld -> {
+                click("Create New World");
+                expectGui(GuiCreateWorld.class, createWorld -> {
+                    click("Create New World");
+                    class EventHandler {
+                        @SubscribeEvent
+                        public void onRenderIngame(RenderGameOverlayEvent.Pre event) {
+                            MinecraftForge.EVENT_BUS.unregister(this);
+                            runLater(() -> future.set(null));
+                        }
+                    }
+                    MinecraftForge.EVENT_BUS.register(new EventHandler());
+                });
+            });
+        });
+    }
+}

src/integration-test/java/com/replaymod/recording/ExitSPWorld.java

@@ -0,0 +1,36 @@
+package com.replaymod.recording;
+
+import com.replaymod.core.AbstractTask;
+import net.minecraft.client.gui.GuiIngameMenu;
+import net.minecraft.client.gui.GuiMainMenu;
+import org.apache.commons.io.filefilter.DirectoryFileFilter;
+
+import java.io.IOException;
+
+public class ExitSPWorld extends AbstractTask {
+    @Override
+    protected void init() {
+        mc.displayInGameMenu();
+        expectGui(GuiIngameMenu.class, ingameMenu -> {
+            click("Save and Quit to Title");
+            expectGui(GuiMainMenu.class, mainMenu -> new Thread(() -> {
+                try {
+                    while (true) {
+                        String[] dirs = core.getReplayFolder().list(DirectoryFileFilter.DIRECTORY);
+                        if (dirs == null) {
+                            future.setException(new NullPointerException("dirs is null"));
+                            return;
+                        }
+                        if (dirs.length == 0) {
+                            runLater(() -> future.set(null));
+                            return;
+                        }
+                        Thread.sleep(10);
+                    }
+                } catch (IOException | InterruptedException e) {
+                    future.setException(e);
+                }
+            }).start());
+        });
+    }
+}

src/integration-test/java/com/replaymod/replay/ExitReplay.java

@@ -0,0 +1,16 @@
+package com.replaymod.replay;
+
+import com.replaymod.core.AbstractTask;
+import net.minecraft.client.gui.GuiIngameMenu;
+import net.minecraft.client.gui.GuiMainMenu;
+
+public class ExitReplay extends AbstractTask {
+    @Override
+    protected void init() {
+        mc.displayInGameMenu();
+        expectGui(GuiIngameMenu.class, ingameMenu -> {
+            click("Exit Replay");
+            expectGui(GuiMainMenu.class, mainMenu -> future.set(null));
+        });
+    }
+}

src/integration-test/java/com/replaymod/replay/LoadReplay.java

@@ -0,0 +1,32 @@
+package com.replaymod.replay;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.replay.gui.screen.GuiReplayViewer;
+import de.johni0702.minecraft.gui.function.Clickable;
+import net.minecraftforge.client.event.RenderGameOverlayEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import org.lwjgl.util.Point;
+import org.lwjgl.util.ReadableDimension;
+
+public class LoadReplay extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(GuiReplayViewer.class, replayViewer -> runLater(() -> {
+            ReadableDimension size = replayViewer.getMaxSize();
+            // Select first entry
+            replayViewer.forEach(Clickable.class).mouseClick(new Point(size.getWidth() / 2, 40), 0);
+            // Load first replay
+            click(replayViewer.loadButton);
+
+            class EventHandler {
+                @SubscribeEvent
+                public void onRenderIngame(RenderGameOverlayEvent.Pre event) {
+                    MinecraftForge.EVENT_BUS.unregister(this);
+                    runLater(() -> future.set(null));
+                }
+            }
+            MinecraftForge.EVENT_BUS.register(new EventHandler());
+        }));
+    }
+}

src/integration-test/java/com/replaymod/replay/OpenReplayViewer.java

@@ -0,0 +1,15 @@
+package com.replaymod.replay;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.replay.gui.screen.GuiReplayViewer;
+import net.minecraft.client.gui.GuiMainMenu;
+
+public class OpenReplayViewer extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(GuiMainMenu.class, mainMenu -> {
+            click("Replay Viewer");
+            expectGui(GuiReplayViewer.class, replayViewer -> future.set(null));
+        });
+    }
+}

src/integration-test/java/com/replaymod/replay/SpectatePlayer.java

@@ -0,0 +1,42 @@
+package com.replaymod.replay;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.extras.playeroverview.PlayerOverviewGui;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.gameevent.TickEvent;
+import org.lwjgl.input.Keyboard;
+
+import java.util.concurrent.TimeoutException;
+
+public class SpectatePlayer extends AbstractTask {
+    @Override
+    protected void init() {
+        press(Keyboard.KEY_B);
+        expectGui(PlayerOverviewGui.class, overview -> {
+            click(overview.getMaxSize().getWidth() / 2 - 60, 60);
+            press(Keyboard.KEY_ESCAPE);
+            expectGuiClosed(() -> future.set(null));
+        });
+    }
+
+    public static class End extends AbstractTask {
+        private int timeout;
+
+        @Override
+        protected void init() {
+            runLater(() -> press(Keyboard.KEY_LSHIFT));
+        }
+
+        @SubscribeEvent
+        public void onTick(TickEvent.RenderTickEvent event) {
+            if (event.phase != TickEvent.Phase.START) return;
+            if (timeout++ > 20) {
+                future.setException(new TimeoutException("Camera hasn't stopped spectating."));
+                return;
+            }
+            if (mc.getRenderViewEntity() == mc.thePlayer) {
+                future.set(null);
+            }
+        }
+    }
+}

src/integration-test/java/com/replaymod/replay/overlay/OverlayGui.java

@@ -0,0 +1,33 @@
+package com.replaymod.replay.overlay;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.core.CompositeTask;
+import com.replaymod.core.Task;
+import com.replaymod.replay.gui.overlay.GuiReplayOverlay;
+import org.lwjgl.input.Keyboard;
+
+public class OverlayGui {
+    public static Task whileOpened(Task...tasks) {
+        Task[] nTasks = new Task[tasks.length + 2];
+        System.arraycopy(tasks, 0, nTasks, 1, tasks.length);
+        nTasks[0] = new Open();
+        nTasks[tasks.length + 1] = new Close();
+        return new CompositeTask(nTasks);
+    }
+
+    public static class Open extends AbstractTask {
+        @Override
+        protected void init() {
+            press(Keyboard.KEY_T);
+            expectGui(GuiReplayOverlay.class, done -> future.set(null));
+        }
+    }
+
+    public static class Close extends AbstractTask {
+        @Override
+        protected void init() {
+            press(Keyboard.KEY_ESCAPE);
+            expectGuiClosed(() -> future.set(null));
+        }
+    }
+}

src/integration-test/java/com/replaymod/simplepathing/GuiPathingTasks.java

@@ -0,0 +1,35 @@
+package com.replaymod.simplepathing;
+
+import com.replaymod.core.AbstractTask;
+import com.replaymod.replay.gui.overlay.GuiReplayOverlay;
+import com.replaymod.simplepathing.gui.GuiPathing;
+import de.johni0702.minecraft.gui.popup.GuiYesNoPopup;
+import org.lwjgl.input.Keyboard;
+
+public abstract class GuiPathingTasks extends AbstractTask {
+    @Override
+    protected void init() {
+        expectGui(GuiReplayOverlay.class, ign -> init0(ReplayModSimplePathing.instance.getGuiPathing()));
+    }
+
+    protected abstract void init0(GuiPathing guiPathing);
+
+    public static class ClickPositionKeyframeButton extends GuiPathingTasks {
+        @Override
+        protected void init0(GuiPathing guiPathing) {
+            click(guiPathing.positionKeyframeButton);
+            runLater(() -> future.set(null));
+        }
+    }
+
+    public static class ClearKeyframeTimeline extends AbstractTask {
+        @Override
+        protected void init() {
+            press(Keyboard.KEY_C);
+            expectGui(GuiYesNoPopup.class, popup -> {
+                click(popup.getYesButton());
+                expectGuiClosed(() -> future.set(null));
+            });
+        }
+    }
+}

src/main/java/com/replaymod/compat/ReplayModCompat.java

@@ -2,19 +2,18 @@ package com.replaymod.compat;
 
 import com.replaymod.compat.optifine.DisableFastRender;
 import com.replaymod.compat.shaders.ShaderBeginRender;
-import com.replaymod.core.ReplayMod;
 import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLInitializationEvent;
 import net.minecraftforge.fml.common.eventhandler.EventBus;
 
-@Mod(modid = ReplayModCompat.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModCompat.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModCompat {
     public static final String MOD_ID = "replaymod-compat";
 
-    @Mod.Instance(ReplayMod.MOD_ID)
-    private static ReplayMod core;
-
     @Mod.EventHandler
     public void init(FMLInitializationEvent event) {
         EventBus bus = FMLCommonHandler.instance().bus();

src/main/java/com/replaymod/compat/shaders/mixin/MixinShadersRender.java

@@ -0,0 +1,22 @@
+package com.replaymod.compat.shaders.mixin;
+
+import net.minecraft.client.renderer.EntityRenderer;
+import net.minecraftforge.client.ForgeHooksClient;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Pseudo
+@Mixin(targets = "shadersmod/client/ShadersRender", remap = false)
+public abstract class MixinShadersRender {
+
+    @Inject(method = "renderHand0", at = @At("HEAD"), cancellable = true)
+    private static void replayModCompat_disableRenderHand0(EntityRenderer er, float partialTicks, int renderPass, CallbackInfo ci) {
+        if (ForgeHooksClient.renderFirstPersonHand(er.mc.renderGlobal, partialTicks, renderPass)) {
+            ci.cancel();
+        }
+    }
+
+}

src/main/java/com/replaymod/core/LoadingPlugin.java

@@ -4,7 +4,7 @@ import net.minecraftforge.fml.relauncher.CoreModManager;
 import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin;
 import org.apache.logging.log4j.LogManager;
 import org.spongepowered.asm.launch.MixinBootstrap;
-import org.spongepowered.asm.mixin.MixinEnvironment;
+import org.spongepowered.asm.mixin.Mixins;
 
 import java.io.File;
 import java.net.URISyntaxException;
@@ -16,10 +16,10 @@ public class LoadingPlugin implements IFMLLoadingPlugin {
 
     public LoadingPlugin() {
         MixinBootstrap.init();
-        MixinEnvironment.getDefaultEnvironment().addConfiguration("mixins.recording.replaymod.json");
+        Mixins.addConfiguration("mixins.recording.replaymod.json");
-        MixinEnvironment.getDefaultEnvironment().addConfiguration("mixins.render.replaymod.json");
+        Mixins.addConfiguration("mixins.render.replaymod.json");
-        MixinEnvironment.getDefaultEnvironment().addConfiguration("mixins.replay.replaymod.json");
+        Mixins.addConfiguration("mixins.replay.replaymod.json");
-        MixinEnvironment.getDefaultEnvironment().addConfiguration("mixins.compat.shaders.replaymod.json");
+        Mixins.addConfiguration("mixins.compat.shaders.replaymod.json");
 
         CodeSource codeSource = getClass().getProtectionDomain().getCodeSource();
         if (codeSource != null) {

src/main/java/com/replaymod/core/ReplayMod.java

@@ -35,6 +35,8 @@ import java.util.Queue;
 
 @Mod(modid = ReplayMod.MOD_ID,
         useMetadata = true,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
         updateJSON = "https://raw.githubusercontent.com/ReplayMod/ReplayMod/master/versions.json",
         guiFactory = "com.replaymod.core.gui.GuiFactory")
 public class ReplayMod {

src/main/java/com/replaymod/core/gui/RestoreReplayGui.java

@@ -3,6 +3,7 @@ package com.replaymod.core.gui;
 import com.google.common.io.Files;
 import com.replaymod.replaystudio.PacketData;
 import com.replaymod.replaystudio.io.ReplayInputStream;
+import com.replaymod.replaystudio.io.ReplayOutputStream;
 import com.replaymod.replaystudio.replay.ReplayFile;
 import com.replaymod.replaystudio.replay.ReplayMetaData;
 import com.replaymod.replaystudio.replay.ZipReplayFile;
@@ -45,15 +46,19 @@ public class RestoreReplayGui extends AbstractGuiScreen<RestoreReplayGui> {
                 ReplayMetaData metaData = replayFile.getMetaData();
                 if (metaData != null && metaData.getDuration() == 0) {
                     // Try to restore replay duration
-                    try (ReplayInputStream in = replayFile.getPacketData()) {
+                    // We need to re-write the packet data in case there are any incomplete packets dangling at the end
+                    try (ReplayInputStream in = replayFile.getPacketData();
+                         ReplayOutputStream out = replayFile.writePacketData()) {
                         PacketData last = null;
                         while ((last = in.readPacket()) != null) {
                             metaData.setDuration((int) last.getTime());
+                            out.write(last);
                         }
-                        replayFile.writeMetaData(metaData);
                     } catch (Throwable t) {
                         t.printStackTrace();
                     }
+                    // Write back the actual duration
+                    replayFile.writeMetaData(metaData);
                 }
                 replayFile.save();
                 replayFile.close();

src/main/java/com/replaymod/core/utils/Utils.java

@@ -1,16 +1,55 @@
 package com.replaymod.core.utils;
 
-import net.minecraft.client.Minecraft;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import de.johni0702.minecraft.gui.GuiRenderer;
+import de.johni0702.minecraft.gui.RenderInfo;
+import de.johni0702.minecraft.gui.container.AbstractGuiScrollable;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.container.GuiScrollable;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiElement;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.layout.VerticalLayout;
+import de.johni0702.minecraft.gui.popup.GuiInfoPopup;
+import de.johni0702.minecraft.gui.utils.Colors;
+import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.network.NetworkPlayerInfo;
 import net.minecraft.client.resources.DefaultPlayerSkin;
+import net.minecraft.crash.CrashReport;
 import net.minecraft.util.ResourceLocation;
+import org.apache.logging.log4j.Logger;
 import org.lwjgl.input.Keyboard;
 import org.lwjgl.util.Dimension;
 import org.lwjgl.util.ReadableDimension;
 
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import javax.imageio.ImageIO;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLSocketFactory;
+import javax.net.ssl.TrustManagerFactory;
 import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.KeyManagementException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.text.SimpleDateFormat;
+import java.util.Arrays;
+import java.util.Date;
 import java.util.UUID;
+import java.util.function.Consumer;
+
+import static net.minecraft.client.Minecraft.getMinecraft;
 
 public class Utils {
 
@@ -27,6 +66,42 @@ public class Utils {
         DEFAULT_THUMBNAIL = thumbnail;
     }
 
+
+    /**
+     * Neither the root certificate of LetsEncrypt nor the root that cross-signed it is included in the default
+     * Java keystore prior to 8u101.
+     * Therefore whenever a connection to the replaymod.com site is made, this SSLContext has to be used instead.
+     * It has been constructed to include the necessary root certificates.
+     * @see #SSL_SOCKET_FACTORY
+     */
+    public static final SSLContext SSL_CONTEXT;
+
+    /**
+     * @see #SSL_CONTEXT
+     */
+    public static final SSLSocketFactory SSL_SOCKET_FACTORY;
+
+    static {
+        // Largely from https://community.letsencrypt.org/t/134/37
+        try (InputStream in = Utils.class.getResourceAsStream("/dst_root_ca_x3.pem")){
+            Certificate certificate = CertificateFactory.getInstance("X.509").generateCertificate(in);
+
+            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
+            keyStore.load(null, null);
+            keyStore.setCertificateEntry("1", certificate);
+
+            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+            trustManagerFactory.init(keyStore);
+
+            SSLContext ctx = SSLContext.getInstance("TLS");
+            ctx.init(null, trustManagerFactory.getTrustManagers(), null);
+            SSL_CONTEXT = ctx;
+            SSL_SOCKET_FACTORY = ctx.getSocketFactory();
+        } catch (IOException | CertificateException | KeyStoreException | NoSuchAlgorithmException | KeyManagementException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     public static String convertSecondsToShortString(int seconds) {
         int hours = seconds/(60*60);
         int min = seconds/60 - hours*60;
@@ -63,7 +138,7 @@ public class Utils {
     }
 
     public static ResourceLocation getResourceLocationForPlayerUUID(UUID uuid) {
-        NetworkPlayerInfo info = Minecraft.getMinecraft().getNetHandler().getPlayerInfo(uuid);
+        NetworkPlayerInfo info = getMinecraft().getNetHandler().getPlayerInfo(uuid);
         ResourceLocation skinLocation;
         if (info != null && info.hasLocationSkin()) {
             skinLocation = info.getLocationSkin();
@@ -76,4 +151,94 @@ public class Utils {
     public static boolean isCtrlDown() {
         return Keyboard.isKeyDown(Keyboard.KEY_LCONTROL) || Keyboard.isKeyDown(Keyboard.KEY_RCONTROL);
     }
+
+    public static <T> void addCallback(ListenableFuture<T> future, Consumer<T> onSuccess, Consumer<Throwable> onFailure) {
+        Futures.addCallback(future, new FutureCallback<T>() {
+            @Override
+            public void onSuccess(@Nullable T result) {
+                onSuccess.accept(result);
+            }
+
+            @Override
+            public void onFailure(@Nonnull Throwable t) {
+                onFailure.accept(t);
+            }
+        });
+    }
+
+    public static GuiInfoPopup error(Logger logger, GuiContainer container, CrashReport crashReport, Runnable onClose) {
+        // Convert crash report to string
+        String crashReportStr = crashReport.getCompleteReport();
+
+        // Log via logger
+        logger.error(crashReportStr);
+
+        // Try to save the crash report
+        if (crashReport.getFile() == null) {
+            try {
+                File folder = new File(getMinecraft().mcDataDir, "crash-reports");
+                File file = new File(folder, "crash-" + (new SimpleDateFormat("yyyy-MM-dd_HH.mm.ss")).format(new Date()) + "-client.txt");
+                logger.debug("Saving crash report to file: {}", file);
+                crashReport.saveToFile(file);
+            } catch (Throwable t) {
+                logger.error("Saving crash report file:", t);
+            }
+        } else {
+            logger.debug("Not saving crash report as file already exists: {}", crashReport.getFile());
+        }
+
+        logger.trace("Opening crash report popup GUI");
+        GuiCrashReportPopup popup = new GuiCrashReportPopup(container, crashReportStr);
+        Futures.addCallback(popup.getFuture(), new FutureCallback<Void>() {
+            @Override
+            public void onSuccess(@Nullable Void result) {
+                logger.trace("Crash report popup closed");
+                if (onClose != null) {
+                    onClose.run();
+                }
+            }
+
+            @Override
+            public void onFailure(Throwable t) {
+                logger.error("During error popup:", t);
+            }
+        });
+        return popup;
+    }
+
+    private static class GuiCrashReportPopup extends GuiInfoPopup {
+        private final GuiScrollable scrollable;
+
+        public GuiCrashReportPopup(GuiContainer container, String crashReport) {
+            super(container);
+            setBackgroundColor(Colors.DARK_TRANSPARENT);
+
+            // Add crash report to scrollable info
+            getInfo().addElements(new VerticalLayout.Data(0.5),
+                    new GuiLabel().setColor(Colors.BLACK).setI18nText("replaymod.gui.unknownerror"),
+                    scrollable = new GuiScrollable().setScrollDirection(AbstractGuiScrollable.Direction.VERTICAL)
+                            .setLayout(new VerticalLayout().setSpacing(2))
+                            .addElements(null,Arrays.stream(crashReport.replace("\t", "    ").split("\n")).map(
+                                    l -> new GuiLabel().setText(l).setColor(Colors.BLACK)).toArray(GuiElement[]::new)));
+
+            // Replace close button with panel containing close and copy buttons
+            GuiButton copyToClipboardButton = new GuiButton().setI18nLabel("chat.copy").onClick(() ->
+                    GuiScreen.setClipboardString(crashReport)).setSize(150, 20);
+            GuiButton closeButton = getCloseButton();
+            popup.removeElement(closeButton);
+            popup.addElements(new VerticalLayout.Data(1),
+                    new GuiPanel().setLayout(new HorizontalLayout().setSpacing(5)).setSize(305, 20)
+                            .addElements(null, copyToClipboardButton, closeButton));
+
+            // And open it
+            open();
+        }
+
+        @Override
+        public void draw(GuiRenderer renderer, ReadableDimension size, RenderInfo renderInfo) {
+            // Re-size the scrollable containing the crash report to 3/4 of the screen
+            scrollable.setSize(size.getWidth() * 3 / 4, size.getHeight() * 3 / 4);
+            super.draw(renderer, size, renderInfo);
+        }
+    }
 }

src/main/java/com/replaymod/editor/ReplayModEditor.java

@@ -0,0 +1,41 @@
+package com.replaymod.editor;
+
+import com.replaymod.core.ReplayMod;
+import com.replaymod.editor.handler.GuiHandler;
+import com.replaymod.online.Setting;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLInitializationEvent;
+import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import org.apache.logging.log4j.Logger;
+
+@Mod(modid = ReplayModEditor.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
+public class ReplayModEditor {
+    public static final String MOD_ID = "replaymod-editor";
+
+    @Mod.Instance(MOD_ID)
+    public static ReplayModEditor instance;
+
+    private ReplayMod core;
+
+    public static Logger LOGGER;
+
+    @Mod.EventHandler
+    public void preInit(FMLPreInitializationEvent event) {
+        ReplayModEditor.LOGGER = event.getModLog();
+        core = ReplayMod.instance;
+
+        core.getSettingsRegistry().register(Setting.class);
+    }
+
+    @Mod.EventHandler
+    public void init(FMLInitializationEvent event) {
+        new GuiHandler(this).register();
+    }
+
+    public ReplayMod getCore() {
+        return core;
+    }
+}

src/main/java/com/replaymod/editor/gui/GuiReplayEditor.java

@@ -0,0 +1,389 @@
+package com.replaymod.editor.gui;
+
+import com.google.common.io.Files;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.google.gson.JsonObject;
+import com.replaymod.core.ReplayMod;
+import com.replaymod.core.utils.Utils;
+import com.replaymod.replaystudio.PacketData;
+import com.replaymod.replaystudio.Studio;
+import com.replaymod.replaystudio.filter.StreamFilter;
+import com.replaymod.replaystudio.io.ReplayInputStream;
+import com.replaymod.replaystudio.io.ReplayOutputStream;
+import com.replaymod.replaystudio.replay.ReplayFile;
+import com.replaymod.replaystudio.replay.ReplayMetaData;
+import com.replaymod.replaystudio.replay.ZipReplayFile;
+import com.replaymod.replaystudio.stream.PacketStream;
+import com.replaymod.replaystudio.studio.ReplayStudio;
+import de.johni0702.minecraft.gui.GuiRenderer;
+import de.johni0702.minecraft.gui.RenderInfo;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTextField;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
+import de.johni0702.minecraft.gui.element.advanced.GuiProgressBar;
+import de.johni0702.minecraft.gui.layout.CustomLayout;
+import de.johni0702.minecraft.gui.layout.GridLayout;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.layout.VerticalLayout;
+import de.johni0702.minecraft.gui.popup.AbstractGuiPopup;
+import de.johni0702.minecraft.gui.popup.GuiInfoPopup;
+import de.johni0702.minecraft.gui.popup.GuiYesNoPopup;
+import de.johni0702.minecraft.gui.utils.Colors;
+import net.minecraft.crash.CrashReport;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.lwjgl.util.ReadableDimension;
+
+import javax.annotation.Nullable;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+import static com.replaymod.editor.ReplayModEditor.LOGGER;
+
+public class GuiReplayEditor extends GuiScreen {
+    private final ReplayMod mod;
+
+    private volatile ProcessingStage processingStage;
+    private volatile double progress;
+    private GuiProcessingProgressPopup popup;
+
+    public GuiButton currentTabButton;
+    public GuiPanel currentTabPanel;
+
+    public final GuiLabel warningLabel = new GuiLabel(this).setColor(Colors.RED)
+            .setI18nText("replaymod.gui.editor.disclaimer");
+
+    public final GuiPanel tabButtons = new GuiPanel(this).setLayout(new GridLayout().setSpacingX(5));
+    public final List<GuiPanel> tabPanels = new ArrayList<>();
+
+    public final GuiButton saveButton = new GuiButton().setI18nLabel("replaymod.gui.save").setSize(100, 20);
+    public final GuiButton backButton = new GuiButton().setI18nLabel("replaymod.gui.back").setSize(100, 20);
+
+    public final GuiPanel buttonPanel = new GuiPanel(this).setLayout(new HorizontalLayout().setSpacing(5))
+            .addElements(null, saveButton, backButton);
+
+    public GuiReplayEditor(GuiScreen parent, ReplayMod mod) {
+        this.mod = mod;
+        backButton.onClick(parent::display);
+
+        setTitle(new GuiLabel().setI18nText("replaymod.gui.replayeditor"));
+
+        makeTab("trim", () -> new GuiTrimPanel(this));
+        makeTab("connect", GuiPanel::new).setDisabled(); // Not yet implemented
+        makeTab("modify", GuiPanel::new).setDisabled(); // Not yet implemented
+
+        setLayout(new CustomLayout<GuiScreen>() {
+            @Override
+            protected void layout(GuiScreen container, int width, int height) {
+                // Move all inactive panels aside
+                tabPanels.forEach(e -> pos(e, Integer.MIN_VALUE, Integer.MIN_VALUE));
+
+                pos(warningLabel, 10, 22);
+                size(warningLabel, width - 20, 10);
+
+                pos(tabButtons, 10, y(warningLabel) + height(warningLabel) + 2);
+                size(tabButtons, width - 20, 20);
+
+                pos(buttonPanel, width - 10 - width(buttonPanel), height - 10 - height(buttonPanel));
+
+                if (currentTabPanel != null) {
+                    pos(currentTabPanel, 10, y(tabButtons) + height(tabButtons) + 10);
+                    size(currentTabPanel, width - 20, y(buttonPanel) - 10 - y(currentTabPanel));
+                }
+            }
+        });
+    }
+
+    public GuiButton makeTab(String name, Supplier<GuiPanel> panel) {
+        GuiButton button =  new GuiButton().setI18nLabel("replaymod.gui.editor." + name + ".title")
+                .setTooltip(new GuiTooltip().setI18nText("replaymod.gui.editor." + name + ".description"))
+                .setSize(Integer.MAX_VALUE, Integer.MAX_VALUE);
+        button.onClick(() -> {
+            // Remove previous tab
+            if (currentTabButton != null) {
+                currentTabButton.setEnabled();
+                removeElement(currentTabPanel);
+            }
+
+            // Activate new tab
+            currentTabButton = button.setDisabled();
+            addElements(null, currentTabPanel = panel.get());
+        });
+        // Add new tab button to tabs panel
+        tabButtons.addElements(null, button);
+        ((GridLayout) tabButtons.getLayout()).setColumns(tabButtons.getChildren().size());
+        return button;
+    }
+
+    public void save(File inputFile, PacketStream.FilterInfo...filters) {
+        save(FilenameUtils.getBaseName(inputFile.getName()), (outputFile) -> {
+            Studio studio = new ReplayStudio();
+            File tmpDir = null;
+            try {
+                File actualOutputFile  = outputFile;
+                if (outputFile.getCanonicalPath().equals(inputFile.getCanonicalPath())) {
+                    // Input and output files are identical. Due to the way the ZipReplayFile stores its temporary
+                    // data, the same replay file must not be opened twice for writing (tmp files will be deleted once
+                    // either one is closed or, on Windows, will throw an exception when deleted).
+                    tmpDir = Files.createTempDir();
+                    outputFile = new File(tmpDir, "replay.mcpr");
+                    LOGGER.debug("Output file is identical to input file, using temporary output file {} instead",
+                            outputFile);
+                }
+                try (ReplayFile outputReplay = new ZipReplayFile(studio, inputFile, outputFile);
+                     ReplayOutputStream out = outputReplay.writePacketData();
+                     ReplayFile inputReplay = new ZipReplayFile(studio, inputFile);
+                     ReplayInputStream in = inputReplay.getPacketData()) {
+                    ReplayMetaData metaData = inputReplay.getMetaData();
+                    PacketStream stream = studio.createReplayStream(in, true);
+
+                    stream.addFilter(new ProgressFilter(metaData.getDuration()));
+                    for (PacketStream.FilterInfo info : filters) {
+                        stream.addFilter(info.getFilter(), info.getFrom(), info.getTo());
+                        LOGGER.debug("Added filter {}", info);
+                    }
+
+                    LOGGER.info("Built pipeline: {}", stream);
+                    stream.start();
+
+                    long lastTimestamp = 0;
+
+                    PacketData data;
+                    while ((data = stream.next()) != null) {
+                        out.write(data);
+                        lastTimestamp = data.getTime();
+                    }
+
+                    for (PacketData d : stream.end()) {
+                        out.write(d);
+                        lastTimestamp = d.getTime();
+                    }
+
+                    updateProgress(ProcessingStage.FINALIZING, 0);
+
+                    // Update duration of new replay
+                    metaData.setDuration((int) lastTimestamp);
+                    outputReplay.writeMetaData(metaData);
+
+                    out.close();
+                    outputReplay.save();
+                }
+                if (outputFile != actualOutputFile) {
+                    LOGGER.debug("Moving temporary output file {} to {}");
+                    FileUtils.forceDelete(actualOutputFile);
+                    FileUtils.moveFile(outputFile, actualOutputFile);
+                }
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            } finally {
+                if (tmpDir != null && !FileUtils.deleteQuietly(tmpDir)) {
+                    LOGGER.warn("Failed to delete temporary directory {}", tmpDir);
+                }
+            }
+        });
+    }
+
+    public void save(String sourceName, Consumer<File> runnable) {
+        GuiTextField nameField = new GuiTextField().setSize(200, 20).setFocused(true).setText(sourceName);
+        GuiYesNoPopup popup = GuiYesNoPopup.open(this,
+                nameField
+        ).setYesI18nLabel("replaymod.gui.editor.savemode.override").setNoI18nLabel("replaymod.gui.cancel");
+        nameField.onEnter(() -> {
+            if (popup.getYesButton().isEnabled()) {
+                popup.getYesButton().onClick();
+            }
+        }).onTextChanged(obj -> {
+            popup.getYesButton().setEnabled(!nameField.getText().isEmpty());
+            popup.setYesI18nLabel("replaymod.gui.editor.savemode." +
+                    (nameField.getText().equals(sourceName) ? "override" : "newfile"));
+        });
+        Futures.addCallback(popup.getFuture(), new FutureCallback<Boolean>() {
+            @Override
+            public void onSuccess(@Nullable Boolean result) {
+                if (result == Boolean.TRUE) {
+                    // Sanitize their input
+                    String name = nameField.getText().trim().replace("[^a-zA-Z0-9\\.\\- ]", "_");
+                    // This file is what they want
+                    File replayFolder;
+                    try {
+                        replayFolder = mod.getReplayFolder();
+                    } catch (IOException e) {
+                        Utils.error(LOGGER, GuiReplayEditor.this, CrashReport.makeCrashReport(e, "Getting replay folder"), null);
+                        return;
+                    }
+                    File targetFile = new File(replayFolder, name + ".mcpr");
+                    if (targetFile.exists()) {
+                        LOGGER.trace("Selected file already exists, asking for confirmation");
+                        Futures.addCallback(GuiYesNoPopup.open(GuiReplayEditor.this,
+                                new GuiLabel().setColor(Colors.BLACK)
+                                        .setI18nText("replaymod.gui.replaymodified.warning1", name),
+                                new GuiLabel().setColor(Colors.BLACK)
+                                        .setI18nText("replaymod.gui.replaymodified.warning2"))
+                                .setYesI18nLabel("gui.yes").setNoI18nLabel("gui.no")
+                                .getFuture(), new FutureCallback<Boolean>() {
+                            @Override
+                            public void onSuccess(@Nullable Boolean result) {
+                                if (result == Boolean.TRUE) {
+                                    LOGGER.trace("Saving output in {}", targetFile);
+                                    runEdit(() -> runnable.accept(targetFile));
+                                } else {
+                                    LOGGER.trace("Not overwriting file {}, reopening naming dialog", targetFile);
+                                    save(sourceName, runnable);
+                                }
+                            }
+
+                            @Override
+                            public void onFailure(Throwable t) {
+                                LOGGER.error("During save file confirmation dialog:", t);
+                            }
+                        });
+                    } else {
+                        LOGGER.trace("Saving output in {}", targetFile);
+                        runEdit(() -> runnable.accept(targetFile));
+                    }
+                } else {
+                    LOGGER.trace("Saving cancelled");
+                }
+            }
+
+            @Override
+            public void onFailure(Throwable t) {
+                LOGGER.error("During save file dialog:", t);
+            }
+        });
+    }
+
+    public void runEdit(Runnable runnable) {
+        popup = new GuiProcessingProgressPopup(this);
+        processingStage = ProcessingStage.INITIALIZING;
+        progress = 0;
+        new Thread(() -> {
+            LOGGER.info("Starting editing of replay");
+            try {
+                runnable.run();
+            } catch (Throwable t) {
+                CrashReport crashReport = CrashReport.makeCrashReport(t, "Editing replay file");
+                mod.runLater(() -> Utils.error(LOGGER, this, crashReport, popup::close));
+                return;
+            }
+            LOGGER.info("Successfully finished editing");
+            mod.runLater(() -> {
+                popup.close();
+                GuiInfoPopup.open(this, "replaymod.gui.editor.progress.status.finished");
+            });
+        }).start();
+    }
+
+    public void updateProgress(ProcessingStage stage, double progress) {
+        if (this.processingStage != stage) {
+            LOGGER.trace("Changing state from {} to {}", this.processingStage, stage);
+        }
+        this.processingStage = stage;
+        this.progress = progress;
+    }
+
+    public ReplayMod getMod() {
+        return mod;
+    }
+
+    public enum ProcessingStage {
+        INITIALIZING("initializing", 0.01),
+        WORKING("writing.raw", 0.89),
+        FINALIZING("writing.final", 0.1),
+        DONE("finished", 0);
+
+        private final String i18nKey;
+        private final double progressFraction;
+
+        ProcessingStage(String i18nKey, double progressFraction) {
+            this.i18nKey = "replaymod.gui.editor.progress.status." + i18nKey;
+            this.progressFraction = progressFraction;
+        }
+
+        public double getOverallProgress(double progress) {
+            progress *= progressFraction;
+            for (ProcessingStage processingStage : values()) {
+                if (processingStage == this) break;
+                progress += processingStage.progressFraction;
+            }
+            return progress;
+        }
+    }
+
+    private class ProgressFilter implements StreamFilter {
+        private final long total;
+
+        public ProgressFilter(long total) {
+            this.total = total;
+        }
+
+        @Override
+        public String getName() {
+            return "progress";
+        }
+
+        @Override
+        public void init(Studio studio, JsonObject config) {
+
+        }
+
+        @Override
+        public void onStart(PacketStream stream) {
+            updateProgress(ProcessingStage.WORKING, 0);
+        }
+
+        @Override
+        public boolean onPacket(PacketStream stream, PacketData data) {
+            updateProgress(ProcessingStage.WORKING, (double) data.getTime() / total);
+            return true;
+        }
+
+        @Override
+        public void onEnd(PacketStream stream, long timestamp) {}
+    }
+
+    private class GuiProcessingProgressPopup extends AbstractGuiPopup<GuiProcessingProgressPopup> {
+        private final GuiProgressBar progressBar = new GuiProgressBar().setSize(300, 20);
+
+        {
+            popup.setLayout(new VerticalLayout().setSpacing(10));
+            popup.addElements(new VerticalLayout.Data(0.5),
+                    new GuiLabel().setI18nText("replaymod.gui.editor.progress.title").setColor(Colors.BLACK),
+                    new GuiLabel().setI18nText("replaymod.gui.editor.progress.pleasewait").setColor(Colors.BLACK),
+                    progressBar);
+        }
+
+        public GuiProcessingProgressPopup(GuiContainer container) {
+            super(container);
+            open();
+        }
+
+        @Override
+        public void draw(GuiRenderer renderer, ReadableDimension size, RenderInfo renderInfo) {
+            // Update progress bar
+            progressBar.setI18nLabel(processingStage.i18nKey);
+            progressBar.setProgress((float) processingStage.getOverallProgress(progress));
+
+            super.draw(renderer, size, renderInfo);
+        }
+
+        @Override
+        public void close() {
+            super.close();
+        }
+
+        @Override
+        protected GuiProcessingProgressPopup getThis() {
+            return this;
+        }
+    }
+}

src/main/java/com/replaymod/editor/gui/GuiTrimPanel.java

@@ -0,0 +1,202 @@
+package com.replaymod.editor.gui;
+
+import com.google.gson.JsonObject;
+import com.replaymod.core.utils.Utils;
+import com.replaymod.replaystudio.data.Marker;
+import com.replaymod.replaystudio.filter.ChangeTimestampFilter;
+import com.replaymod.replaystudio.filter.RemoveFilter;
+import com.replaymod.replaystudio.filter.SquashFilter;
+import com.replaymod.replaystudio.replay.ReplayFile;
+import com.replaymod.replaystudio.replay.ReplayMetaData;
+import com.replaymod.replaystudio.replay.ZipReplayFile;
+import com.replaymod.replaystudio.stream.PacketStream;
+import com.replaymod.replaystudio.studio.ReplayStudio;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiNumberField;
+import de.johni0702.minecraft.gui.element.advanced.GuiDropdownMenu;
+import de.johni0702.minecraft.gui.layout.GridLayout;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.layout.VerticalLayout;
+import net.minecraft.client.resources.I18n;
+import net.minecraft.crash.CrashReport;
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.io.IOCase;
+import org.apache.commons.io.filefilter.SuffixFileFilter;
+import org.lwjgl.util.Dimension;
+
+import java.io.File;
+import java.io.FileFilter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Function;
+
+import static com.replaymod.editor.ReplayModEditor.LOGGER;
+import static java.util.Optional.ofNullable;
+
+public class GuiTrimPanel extends GuiPanel {
+    private static GuiNumberField newGuiNumberField() {
+        return new GuiNumberField().setMaxLength(2).setSize(20, 20).setValidateOnFocusChange(true);
+    }
+
+    // Special value indicating no replay files were found
+    private static final File NO_REPLAY = new File(".");
+    // Special value for the initial "Select Marker Keyframe" entry
+    private static final Marker NO_MARKER = new Marker(); static {NO_MARKER.setTime(-1);}
+
+    private final GuiReplayEditor gui;
+
+    public final GuiDropdownMenu<File> inputReplays = new GuiDropdownMenu<File>(this)
+            .setMinSize(new Dimension(200, 20)).onSelection(i -> updateSelectedReplay())
+            .setToString(f -> f == NO_REPLAY ? "" : FilenameUtils.getBaseName(f.getName()));
+
+    public final GuiNumberField startHour = newGuiNumberField();
+    public final GuiNumberField startMin = newGuiNumberField();
+    public final GuiNumberField startSec = newGuiNumberField();
+    public final GuiNumberField startMilli = newGuiNumberField().setSize(40, 20).setMaxLength(4);
+    public final GuiDropdownMenu<Marker> startMarker = new GuiDropdownMenu<>();
+
+    public final GuiNumberField endHour = newGuiNumberField();
+    public final GuiNumberField endMin = newGuiNumberField();
+    public final GuiNumberField endSec = newGuiNumberField();
+    public final GuiNumberField endMilli = newGuiNumberField().setSize(40, 20).setMaxLength(4);
+    public final GuiDropdownMenu<Marker> endMarker = new GuiDropdownMenu<>();
+
+    public final GuiPanel timePanel = new GuiPanel(this)
+            .setLayout(new GridLayout().setCellsEqualSize(false).setSpacingX(20).setSpacingY(5).setColumns(3))
+            .addElements(new GridLayout.Data(0, 0.5),
+                    new GuiLabel().setI18nText("replaymod.gui.start"),
+                    new GuiPanel().setLayout(new HorizontalLayout().setSpacing(2)).addElements(
+                            new HorizontalLayout.Data(0.5),
+                            startHour, new GuiLabel().setI18nText("replaymod.gui.hours"),
+                            startMin, new GuiLabel().setI18nText("replaymod.gui.minutes"),
+                            startSec, new GuiLabel().setI18nText("replaymod.gui.seconds"),
+                            startMilli, new GuiLabel().setI18nText("replaymod.gui.milliseconds")
+                    ), startMarker,
+                    new GuiLabel().setI18nText("replaymod.gui.end"),
+                    new GuiPanel().setLayout(new HorizontalLayout().setSpacing(2)).addElements(
+                            new HorizontalLayout.Data(0.5),
+                            endHour, new GuiLabel().setI18nText("replaymod.gui.hours"),
+                            endMin, new GuiLabel().setI18nText("replaymod.gui.minutes"),
+                            endSec, new GuiLabel().setI18nText("replaymod.gui.seconds"),
+                            endMilli, new GuiLabel().setI18nText("replaymod.gui.milliseconds")
+                    ), endMarker);
+
+    public GuiTrimPanel(GuiReplayEditor gui) {
+        this.gui = gui;
+
+        setLayout(new VerticalLayout().setSpacing(10));
+
+        Function<Marker, String> toString = m -> {
+            if (m == NO_MARKER) {
+                return I18n.format("replaymod.gui.editor.trim.marker");
+            } else {
+                return ofNullable(m.getName()).orElse(I18n.format("replaymod.gui.ingame.unnamedmarker"))
+                        + " (" + Utils.convertSecondsToShortString(m.getTime() / 1000) + ")";
+            }
+        };
+        startMarker.setToString(toString).setMinSize(new Dimension(100, 20)).onSelection(i ->
+                onSelectedMarkerChanged(startMarker, startHour, startMin, startSec, startMilli));
+        endMarker.setToString(toString).setMinSize(new Dimension(100, 20)).onSelection(i ->
+                onSelectedMarkerChanged(endMarker, endHour, endMin, endSec, endMilli));
+
+        File[] files = null;
+        try {
+            File folder = gui.getMod().getReplayFolder();
+            files = folder.listFiles((FileFilter) new SuffixFileFilter(".mcpr", IOCase.INSENSITIVE));
+        } catch (IOException e) {
+            Utils.error(LOGGER, gui, CrashReport.makeCrashReport(e, "Listing available replays"), gui.backButton::onClick);
+        }
+        if (files == null) {
+            LOGGER.warn("Replay file list is null, has the replay folder been deleted?");
+            files = new File[0];
+        } else {
+            LOGGER.debug("Found {} replays in the replay folder", files.length);
+        }
+        if (files.length == 0) {
+            inputReplays.setValues(NO_REPLAY);
+        } else {
+            inputReplays.setValues(files);
+        }
+
+        updateSelectedReplay();
+        updateReadyState();
+
+        gui.saveButton.onClick(() -> {
+            // Read start and end times
+            int start = ((startHour.getInteger() * 60 + startMin.getInteger()) * 60 + startSec.getInteger()) * 1000 + startMilli.getInteger();
+            int end = ((endHour.getInteger() * 60 + endMin.getInteger()) * 60 + endSec.getInteger()) * 1000 + endMilli.getInteger();
+            // Configure offset of change timestamp filter
+            ChangeTimestampFilter ctf = new ChangeTimestampFilter();
+            JsonObject config = new JsonObject();
+            config.addProperty("offset", -start);
+            ctf.init(null, config);
+            // Pass filters to save dialog
+            gui.save(inputReplays.getSelectedValue(),
+                    new PacketStream.FilterInfo(new SquashFilter(), -1, start),
+                    new PacketStream.FilterInfo(ctf, start, end),
+                    new PacketStream.FilterInfo(new RemoveFilter(), end, -1)
+            );
+        });
+    }
+
+    private void onSelectedMarkerChanged(GuiDropdownMenu<Marker> dropdown, GuiNumberField hour, GuiNumberField min,
+                                         GuiNumberField sec, GuiNumberField milli) {
+        Marker marker = dropdown.getSelectedValue();
+        if (marker != NO_MARKER) {
+            int time = marker.getTime();
+            setTime(time, hour, min, sec, milli);
+        }
+    }
+
+    private void setTime(int time, GuiNumberField hour, GuiNumberField min,
+                                         GuiNumberField sec, GuiNumberField milli) {
+        milli.setValue(time % 1000); time /= 1000;
+        sec.setValue(time % 60); time /= 60;
+        min.setValue(time % 60); time /= 60;
+        hour.setValue(time);
+    }
+
+    private void updateSelectedReplay() {
+        File file = inputReplays.getSelectedValue();
+        // Load markers and meta data from replay file
+        ReplayMetaData metaData;
+        Set<Marker> markers;
+        if (file == NO_REPLAY) {
+            metaData = new ReplayMetaData();
+            markers = Collections.emptySet();
+        } else {
+            try (ReplayFile replayFile = new ZipReplayFile(new ReplayStudio(), file)) {
+                metaData = replayFile.getMetaData();
+                markers = replayFile.getMarkers().or(Collections.emptySet());
+                LOGGER.debug("Loaded {} markers from replay {}", markers.size(), file);
+            } catch (Exception e) {
+                Utils.error(LOGGER, gui, CrashReport.makeCrashReport(e, "Reading markers from replay"), null);
+                metaData = new ReplayMetaData();
+                markers = Collections.emptySet();
+            }
+        }
+
+        // Sort and add initial "Select Event Marker" element
+        List<Marker> markerList = new ArrayList<>(markers);
+        markerList.sort(Comparator.comparing(Marker::getTime));
+        markerList.add(0, NO_MARKER);
+
+        // Set marker dropdown values
+        Marker[] markerArray = markerList.stream().toArray(Marker[]::new);
+        startMarker.setValues(markerArray).setSelected(0);
+        endMarker.setValues(markerArray).setSelected(0);
+
+        // Set start and end time values
+        setTime(0, startHour, startMin, startSec, startMilli);
+        setTime(metaData.getDuration(), endHour, endMin, endSec, endMilli);
+    }
+
+    private void updateReadyState() {
+        gui.saveButton.setEnabled(inputReplays.getSelectedValue() != NO_REPLAY);
+    }
+}

src/main/java/com/replaymod/editor/handler/GuiHandler.java

@@ -0,0 +1,54 @@
+package com.replaymod.editor.handler;
+
+import com.replaymod.editor.ReplayModEditor;
+import com.replaymod.editor.gui.GuiReplayEditor;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiMainMenu;
+import net.minecraft.client.resources.I18n;
+import net.minecraftforge.client.event.GuiScreenEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.FMLCommonHandler;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+
+import java.util.List;
+
+public class GuiHandler {
+    private static final int BUTTON_REPLAY_EDITOR = 17890237;
+
+    private final ReplayModEditor mod;
+
+    public GuiHandler(ReplayModEditor mod) {
+        this.mod = mod;
+    }
+
+    public void register() {
+        FMLCommonHandler.instance().bus().register(this);
+        MinecraftForge.EVENT_BUS.register(this);
+    }
+
+    @SubscribeEvent
+    public void injectIntoMainMenu(GuiScreenEvent.InitGuiEvent event) {
+        if (!(event.gui instanceof GuiMainMenu)) {
+            return;
+        }
+
+        @SuppressWarnings("unchecked")
+        List<GuiButton> buttonList = event.buttonList;
+        GuiButton button = new GuiButton(BUTTON_REPLAY_EDITOR, event.gui.width / 2 + 2,
+                event.gui.height / 4 + 10 + 3 * 24, I18n.format("replaymod.gui.replayeditor"));
+        button.width = button.width / 2 - 2;
+        buttonList.add(button);
+    }
+
+    @SubscribeEvent
+    public void onButton(GuiScreenEvent.ActionPerformedEvent.Pre event) {
+        if(!event.button.enabled) return;
+
+        if (event.gui instanceof GuiMainMenu) {
+            if (event.button.id == BUTTON_REPLAY_EDITOR) {
+                new GuiReplayEditor(GuiScreen.wrap(event.gui), mod.getCore()).display();
+            }
+        }
+    }
+}

src/main/java/com/replaymod/extras/FullBrightness.java

@@ -10,14 +10,12 @@ import de.johni0702.minecraft.gui.element.IGuiImage;
 import de.johni0702.minecraft.gui.layout.HorizontalLayout;
 import net.minecraft.client.settings.GameSettings;
 import net.minecraftforge.fml.common.FMLCommonHandler;
-import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.common.gameevent.TickEvent;
 import org.lwjgl.input.Keyboard;
 
 public class FullBrightness implements Extra {
-    @Mod.Instance(ReplayModReplay.MOD_ID)
+    private ReplayModReplay module;
-    private static ReplayModReplay module;
 
     private final IGuiImage indicator = new GuiImage().setTexture(ReplayMod.TEXTURE, 90, 20, 19, 13).setSize(19, 13);
 
@@ -27,6 +25,7 @@ public class FullBrightness implements Extra {
 
     @Override
     public void register(final ReplayMod mod) throws Exception {
+        this.module = ReplayModReplay.instance;
         this.gameSettings = mod.getMinecraft().gameSettings;
 
         mod.getKeyBindingRegistry().registerKeyBinding("replaymod.input.lighting", Keyboard.KEY_Z, new Runnable() {

src/main/java/com/replaymod/extras/LocalizationExtra.java

@@ -1,102 +1,106 @@
 package com.replaymod.extras;
 
-import com.google.common.base.Charsets;
 import com.google.common.collect.ImmutableSet;
 import com.replaymod.core.ReplayMod;
-import com.replaymod.online.ReplayModOnline;
-import com.replaymod.online.api.ApiClient;
-import com.replaymod.online.api.ApiException;
-import lombok.RequiredArgsConstructor;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.resources.IResourcePack;
 import net.minecraft.client.resources.data.IMetadataSection;
 import net.minecraft.client.resources.data.IMetadataSerializer;
 import net.minecraft.util.ResourceLocation;
-import net.minecraftforge.fml.common.Mod;
+import org.apache.commons.io.IOUtils;
-import org.apache.commons.lang3.StringEscapeUtils;
 
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.net.ConnectException;
+import java.net.URL;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+import static com.replaymod.extras.ReplayModExtras.LOGGER;
 
 public class LocalizationExtra implements Extra {
-    @Mod.Instance(ReplayModOnline.MOD_ID)
+    private static final String ZIP_FILE_URL = "https://github.com/ReplayMod/Translations/archive/master.zip";
-    private static ReplayModOnline module;
+    private static final String LANG_PREFIX = "Translations-master/";
 
     @Override
     public void register(ReplayMod mod) throws Exception {
         final Minecraft mc = mod.getMinecraft();
-        Thread localizedResourcePackLoader = new Thread(new Runnable() {
+        if (Boolean.parseBoolean(System.getProperty("replaymod.offline", "false"))) {
-            @Override
+            return;
-            public void run() {
+        }
-                try {
+        Thread localizedResourcePackLoader = new Thread(() -> {
+            try {
+                // Download zip of lang files
+                LOGGER.debug("Downloading languages from {}", ZIP_FILE_URL);
+                Map<String, byte[]> languages = new HashMap<>();
+                try (InputStream urlIn = new URL(ZIP_FILE_URL).openStream();
+                     ZipInputStream in = new ZipInputStream(urlIn)) {
+                    ZipEntry entry;
+                    while ((entry = in.getNextEntry()) != null) {
+                        String name = entry.getName();
+                        if (!name.startsWith(LANG_PREFIX) || !name.endsWith(".lang")) {
+                           continue;
+                        }
+                        name = name.substring(LANG_PREFIX.length());
+                        languages.put(name, IOUtils.toByteArray(in));
+                        LOGGER.debug("Added language file {}", name);
+                    }
+                }
+                LOGGER.debug("Downloaded {} languages", languages.size());
+
+                // Add lang files as resource pack
+                mc.addScheduledTask(() -> {
                     @SuppressWarnings("unchecked")
                     List<IResourcePack> defaultResourcePacks = mc.defaultResourcePacks;
-                    defaultResourcePacks.add(new LocalizedResourcePack(module.getApiClient()));
+                    defaultResourcePacks.add(new LocalizedResourcePack(languages));
-                    mc.addScheduledTask(new Runnable() {
+                    mc.getLanguageManager().onResourceManagerReload(mc.getResourceManager());
-                        @Override
+                    LOGGER.debug("Added language files to resource packs and reloaded LanguageManager");
-                        public void run() {
+                });
-                            mc.refreshResources();
+            } catch (Throwable t) {
-                        }
+                LOGGER.error("Loading localized resource pack:", t);
-                    });
-                } catch(Exception e) {
-                    e.printStackTrace();
-                }
             }
         }, "localizedResourcePackLoader");
+        localizedResourcePackLoader.setDaemon(true);
         localizedResourcePackLoader.start();
     }
 
-    @RequiredArgsConstructor
     public static class LocalizedResourcePack implements IResourcePack {
-        private final ApiClient apiClient;
+        private final Pattern LANG_PATTERN = Pattern.compile("^lang/([.+].lang)$");
-        private Map<String, String> availableLanguages = new HashMap<>();
+        private final Map<String, byte[]> languages;
-        private boolean websiteAvailable = true;
+
+        public LocalizedResourcePack(Map<String, byte[]> languages) {
+            this.languages = languages;
+        }
 
         @Override
         public InputStream getInputStream(ResourceLocation loc) {
-            if(!loc.getResourcePath().endsWith(".lang")) return null;
+            if (!"replaymod".equals(loc.getResourceDomain())) return null;
-            String langcode = loc.getResourcePath().split("/")[1].split("\\.")[0];
+            Matcher matcher = LANG_PATTERN.matcher(loc.getResourcePath());
-            if(availableLanguages.containsKey(langcode)) return new ByteArrayInputStream(availableLanguages.get(langcode).getBytes(Charsets.UTF_8));
+            if (matcher.matches()) {
+                byte[] bytes = languages.get(matcher.group());
+                if (bytes != null) {
+                    return new ByteArrayInputStream(bytes);
+                }
+            }
             return null;
         }
 
         @Override
         public boolean resourceExists(ResourceLocation loc) {
-            if(!(loc.getResourcePath().endsWith(".lang"))) return false;
+            // Assumes that getInputStream returns a ByteArrayInputStream that doesn't need to be closed
-            String langcode = loc.getResourcePath().split("/")[1].split("\\.")[0];
+            return getInputStream(loc) != null;
-            if(availableLanguages.containsKey(langcode)) return true;
-            if(!websiteAvailable) return false;
-            try {
-                if (Boolean.parseBoolean(System.getProperty("replaymod.offline", "false"))) {
-                    return false;
-                }
-                String lang = apiClient.getTranslation(langcode);
-                String prop = StringEscapeUtils.unescapeHtml4(lang);
-                availableLanguages.put(langcode, prop);
-                return true;
-            } catch (ApiException e) {
-                if (e.getError().getId() != 16) { // This language has not been translated
-                    e.printStackTrace();
-                }
-            } catch(ConnectException ce) {
-                websiteAvailable = false;
-                ce.printStackTrace();
-            } catch(Exception e) {
-                e.printStackTrace();
-            }
-            return false;
         }
 
         @Override
         public Set getResourceDomains() {
-            return ImmutableSet.of("minecraft", "replaymod");
+            return ImmutableSet.of("replaymod");
         }
 
         @Override

src/main/java/com/replaymod/extras/OpenEyeExtra.java

@@ -17,6 +17,7 @@ import de.johni0702.minecraft.gui.utils.Colors;
 import net.minecraftforge.fml.common.Loader;
 import org.apache.commons.io.FileUtils;
 
+import javax.net.ssl.HttpsURLConnection;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.net.URL;
@@ -24,8 +25,10 @@ import java.nio.channels.Channels;
 import java.nio.channels.FileChannel;
 import java.nio.channels.ReadableByteChannel;
 
+import static com.replaymod.core.utils.Utils.SSL_SOCKET_FACTORY;
+
 public class OpenEyeExtra implements Extra {
-    private static final String DOWNLOAD_URL = "http://www.replaymod.com/dl/openeye/" + Loader.MC_VERSION;
+    private static final String DOWNLOAD_URL = "https://www.replaymod.com/dl/openeye/" + Loader.MC_VERSION;
     private static final Setting<Boolean> ASK_FOR_OPEN_EYE = new Setting<>("advanced", "askForOpenEye", null, true);
 
     private ReplayMod mod;
@@ -40,7 +43,7 @@ public class OpenEyeExtra implements Extra {
         }
     }
 
-    private class OfferGui extends AbstractGuiScreen<OfferGui> {
+    public class OfferGui extends AbstractGuiScreen<OfferGui> {
         public final GuiScreen parent;
         public final GuiPanel textPanel = new GuiPanel().setLayout(new VerticalLayout().setSpacing(3))
                 .addElements(new VerticalLayout.Data(0.5),
@@ -66,10 +69,12 @@ public class OpenEyeExtra implements Extra {
                 GuiPopup popup = new GuiPopup(OfferGui.this);
                 new Thread(() -> {
                     try {
-                        File targetFile = new File("mods/" + Loader.MC_VERSION, "OpenEye.jar");
+                        File targetFile = new File(mod.getMinecraft().mcDataDir, "mods/" + Loader.MC_VERSION + "/OpenEye.jar");
                         FileUtils.forceMkdir(targetFile.getParentFile());
 
-                        ReadableByteChannel in = Channels.newChannel(new URL(DOWNLOAD_URL).openStream());
+                        HttpsURLConnection connection = (HttpsURLConnection) new URL(DOWNLOAD_URL).openConnection();
+                        connection.setSSLSocketFactory(SSL_SOCKET_FACTORY);
+                        ReadableByteChannel in = Channels.newChannel(connection.getInputStream());
                         FileChannel out = new FileOutputStream(targetFile).getChannel();
                         out.transferFrom(in, 0, Long.MAX_VALUE);
                     } catch (Throwable e) {
@@ -102,7 +107,7 @@ public class OpenEyeExtra implements Extra {
         }
     }
 
-    private static final class GuiPopup extends AbstractGuiPopup<GuiPopup> {
+    public static final class GuiPopup extends AbstractGuiPopup<GuiPopup> {
         GuiPopup(GuiContainer container) {
             super(container);
             popup.addElements(null, new GuiIndicator().setColor(Colors.BLACK));

src/main/java/com/replaymod/extras/ReplayModExtras.java

@@ -12,16 +12,16 @@ import org.apache.logging.log4j.Logger;
 import java.util.Arrays;
 import java.util.List;
 
-@Mod(modid = ReplayModExtras.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModExtras.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModExtras {
     public static final String MOD_ID = "replaymod-extras";
 
     @Mod.Instance(MOD_ID)
     public static ReplayModExtras instance;
 
-    @Mod.Instance(ReplayMod.MOD_ID)
-    private static ReplayMod core;
-
     private static final List<Class<? extends Extra>> builtin = Arrays.asList(
             PlayerOverview.class,
             UriSchemeExtra.class,
@@ -32,11 +32,11 @@ public class ReplayModExtras {
             OpenEyeExtra.class
     );
 
-    private Logger logger;
+    public static Logger LOGGER;
 
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
-        logger = event.getModLog();
+        LOGGER = event.getModLog();
     }
 
     @Mod.EventHandler
@@ -44,9 +44,9 @@ public class ReplayModExtras {
         for (Class<? extends Extra> cls : builtin) {
             try {
                 Extra extra = cls.newInstance();
-                extra.register(core);
+                extra.register(ReplayMod.instance);
             } catch (Throwable t) {
-                logger.warn("Failed to load extra " + cls.getName() + ": ", t);
+                LOGGER.warn("Failed to load extra " + cls.getName() + ": ", t);
             }
         }
     }

src/main/java/com/replaymod/extras/playeroverview/PlayerOverview.java

@@ -11,9 +11,11 @@ import com.replaymod.replay.events.ReplayCloseEvent;
 import com.replaymod.replay.events.ReplayOpenEvent;
 import net.minecraft.client.renderer.entity.RenderManager;
 import net.minecraft.client.renderer.entity.RenderPlayer;
+import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraftforge.client.event.RenderHandEvent;
+import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.fml.common.FMLCommonHandler;
-import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import org.lwjgl.input.Keyboard;
 
@@ -21,14 +23,15 @@ import java.io.IOException;
 import java.util.*;
 
 public class PlayerOverview implements Extra {
-    @Mod.Instance(ReplayModReplay.MOD_ID)
+    private ReplayModReplay module;
-    private static ReplayModReplay module;
 
     private final Set<UUID> hiddenPlayers = new HashSet<>();
     private boolean savingEnabled;
 
     @Override
     public void register(final ReplayMod mod) throws Exception {
+        this.module = ReplayModReplay.instance;
+
         mod.getKeyBindingRegistry().registerKeyBinding("replaymod.input.playeroverview", Keyboard.KEY_B, new Runnable() {
             @Override
             public void run() {
@@ -56,6 +59,7 @@ public class PlayerOverview implements Extra {
         });
 
         FMLCommonHandler.instance().bus().register(this);
+        MinecraftForge.EVENT_BUS.register(this);
 
         RenderManager renderManager = mod.getMinecraft().getRenderManager();
         @SuppressWarnings("unchecked")
@@ -92,6 +96,14 @@ public class PlayerOverview implements Extra {
         hiddenPlayers.clear();
     }
 
+    @SubscribeEvent
+    public void oRenderHand(RenderHandEvent event) {
+        Entity view = module.getCore().getMinecraft().getRenderViewEntity();
+        if (view != null && isHidden(view.getUniqueID())) {
+            event.setCanceled(true);
+        }
+    }
+
     public boolean isSavingEnabled() {
         return savingEnabled;
     }

src/main/java/com/replaymod/extras/playeroverview/PlayerOverviewGui.java

@@ -4,10 +4,15 @@ import com.replaymod.core.utils.Utils;
 import com.replaymod.replay.ReplayModReplay;
 import de.johni0702.minecraft.gui.GuiRenderer;
 import de.johni0702.minecraft.gui.RenderInfo;
-import de.johni0702.minecraft.gui.container.*;
+import de.johni0702.minecraft.gui.container.GuiClickable;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import de.johni0702.minecraft.gui.container.GuiVerticalList;
 import de.johni0702.minecraft.gui.element.GuiCheckbox;
 import de.johni0702.minecraft.gui.element.GuiImage;
 import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
 import de.johni0702.minecraft.gui.element.IGuiCheckbox;
 import de.johni0702.minecraft.gui.function.Closeable;
 import de.johni0702.minecraft.gui.layout.CustomLayout;
@@ -36,6 +41,7 @@ public class PlayerOverviewGui extends GuiScreen implements Closeable {
     public final GuiVerticalList playersScrollable = new GuiVerticalList(contentPanel)
             .setDrawSlider(true).setDrawShadow(true);
     public final GuiCheckbox saveCheckbox = new GuiCheckbox(contentPanel)
+            .setTooltip(new GuiTooltip().setI18nText("replaymod.gui.playeroverview.remembersettings.description"))
             .setI18nLabel("replaymod.gui.playeroverview.remembersettings");
     public final GuiCheckbox checkAll = new GuiCheckbox(contentPanel){
         @Override
@@ -43,14 +49,14 @@ public class PlayerOverviewGui extends GuiScreen implements Closeable {
             getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(BUTTON_SOUND, 1.0F));
             playersScrollable.forEach(IGuiCheckbox.class).setChecked(true);
         }
-    }.setLabel("").setChecked(true);
+    }.setLabel("").setChecked(true).setTooltip(new GuiTooltip().setI18nText("replaymod.gui.playeroverview.showall"));
     public final GuiCheckbox uncheckAll = new GuiCheckbox(contentPanel){
         @Override
         public void onClick() {
             getMinecraft().getSoundHandler().playSound(PositionedSoundRecord.create(BUTTON_SOUND, 1.0F));
             playersScrollable.forEach(IGuiCheckbox.class).setChecked(false);
         }
-    }.setLabel("").setChecked(false);
+    }.setLabel("").setChecked(false).setTooltip(new GuiTooltip().setI18nText("replaymod.gui.playeroverview.hideall"));
 
     {
         setBackground(Background.NONE);

src/main/java/com/replaymod/extras/urischeme/UriSchemeExtra.java

@@ -4,7 +4,6 @@ import com.replaymod.core.ReplayMod;
 import com.replaymod.extras.Extra;
 import com.replaymod.online.ReplayModOnline;
 import de.johni0702.minecraft.gui.container.GuiScreen;
-import net.minecraftforge.fml.common.Mod;
 import org.apache.commons.io.IOUtils;
 
 import java.io.IOException;
@@ -13,14 +12,14 @@ import java.net.ServerSocket;
 import java.net.Socket;
 
 public class UriSchemeExtra implements Extra {
-    @Mod.Instance(ReplayModOnline.MOD_ID)
+    private ReplayModOnline module;
-    private static ReplayModOnline module;
 
     private ReplayMod mod;
 
     @Override
     public void register(final ReplayMod mod) throws Exception {
         this.mod = mod;
+        this.module = ReplayModOnline.instance;
 
         UriScheme uriScheme = UriScheme.create();
         if (uriScheme == null) {

src/main/java/com/replaymod/online/ReplayModOnline.java

@@ -26,18 +26,19 @@ import java.io.IOException;
 
 import static net.minecraft.client.Minecraft.getMinecraft;
 
-@Mod(modid = ReplayModOnline.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModOnline.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModOnline {
     public static final String MOD_ID = "replaymod-online";
 
     @Mod.Instance(MOD_ID)
     public static ReplayModOnline instance;
 
-    @Mod.Instance(ReplayMod.MOD_ID)
+    private ReplayMod core;
-    private static ReplayMod core;
 
-    @Mod.Instance(ReplayModReplay.MOD_ID)
+    private ReplayModReplay replayModule;
-    private static ReplayModReplay replayModule;
 
     private Logger logger;
 
@@ -53,6 +54,8 @@ public class ReplayModOnline {
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
         logger = event.getModLog();
+        core = ReplayMod.instance;
+        replayModule = ReplayModReplay.instance;
 
         core.getSettingsRegistry().register(Setting.class);
 
@@ -64,8 +67,10 @@ public class ReplayModOnline {
 
     @Mod.EventHandler
     public void init(FMLInitializationEvent event) {
-        if (!getDownloadsFolder().mkdirs()) {
+        if (!getDownloadsFolder().exists()){
-            logger.warn("Failed to create downloads folder: " + getDownloadsFolder());
+            if (!getDownloadsFolder().mkdirs()) {
+                logger.warn("Failed to create downloads folder: " + getDownloadsFolder());
+            }
         }
 
         new GuiHandler(this).register();
@@ -77,7 +82,7 @@ public class ReplayModOnline {
         // Initial login prompt
         if (!core.getSettingsRegistry().get(Setting.SKIP_LOGIN_PROMPT)) {
             if (!isLoggedIn()) {
-                new GuiLoginPrompt(apiClient, null, null, false).display();
+                core.runLater(() -> new GuiLoginPrompt(apiClient, GuiScreen.wrap(getMinecraft().currentScreen), null, false).display());
             }
         }
     }

src/main/java/com/replaymod/online/api/ApiClient.java

@@ -15,13 +15,19 @@ import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 
 import javax.imageio.ImageIO;
+import javax.net.ssl.HttpsURLConnection;
 import java.awt.image.BufferedImage;
-import java.io.*;
+import java.io.BufferedInputStream;
-import java.net.HttpURLConnection;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URL;
 import java.util.List;
 import java.util.function.Consumer;
 
+import static com.replaymod.core.utils.Utils.SSL_SOCKET_FACTORY;
+
 public class ApiClient {
 
     private static final Minecraft mc = Minecraft.getMinecraft();
@@ -130,7 +136,11 @@ public class ApiClient {
         QueryBuilder builder = new QueryBuilder(ReplayModApiMethods.get_thumbnail);
         builder.put("id", file);
         URL url = new URL(builder.toString());
-        return ImageIO.read(url);
+        HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
+        connection.setSSLSocketFactory(SSL_SOCKET_FACTORY);
+        try (InputStream in = connection.getInputStream()) {
+            return ImageIO.read(in);
+        }
     }
 
     private boolean cancelDownload = false;
@@ -143,7 +153,8 @@ public class ApiClient {
         builder.put("id", file);
         String url = builder.toString();
         URL website = new URL(url);
-        HttpURLConnection con = (HttpURLConnection) website.openConnection();
+        HttpsURLConnection con = (HttpsURLConnection) website.openConnection();
+        con.setSSLSocketFactory(SSL_SOCKET_FACTORY);
 
         int fileSize = con.getContentLength();
 

src/main/java/com/replaymod/online/api/SimpleApiClient.java

@@ -7,12 +7,14 @@ import com.google.gson.JsonParser;
 import com.replaymod.online.api.replay.holders.ApiError;
 import org.apache.commons.io.IOUtils;
 
+import javax.net.ssl.HttpsURLConnection;
 import java.io.IOException;
 import java.io.InputStream;
-import java.net.HttpURLConnection;
 import java.net.URL;
 import java.util.Map;
 
+import static com.replaymod.core.utils.Utils.SSL_SOCKET_FACTORY;
+
 public class SimpleApiClient {
 
     private static final JsonParser jsonParser = new JsonParser();
@@ -72,10 +74,11 @@ public class SimpleApiClient {
         // read response
         String responseContent = null;
         InputStream is = null;
-        HttpURLConnection httpUrlConnection = null;
+        HttpsURLConnection httpUrlConnection = null;
         try {
             URL url = new URL(urlString);
-            httpUrlConnection = (HttpURLConnection) url.openConnection();
+            httpUrlConnection = (HttpsURLConnection) url.openConnection();
+            httpUrlConnection.setSSLSocketFactory(SSL_SOCKET_FACTORY);
 
             httpUrlConnection.setRequestMethod("GET");
 

src/main/java/com/replaymod/online/api/replay/FileUploader.java

@@ -9,16 +9,18 @@ import lombok.RequiredArgsConstructor;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 
+import javax.net.ssl.HttpsURLConnection;
 import java.io.DataOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStream;
-import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLEncoder;
 import java.util.Set;
 import java.util.function.Consumer;
 
+import static com.replaymod.core.utils.Utils.SSL_SOCKET_FACTORY;
+
 @RequiredArgsConstructor
 public class FileUploader {
     private static final Gson gson = new Gson();
@@ -48,7 +50,8 @@ public class FileUploader {
             postData += "&name=" + URLEncoder.encode(filename, "UTF-8");
 
             String url = ReplayModApiMethods.upload_file + postData;
-            HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
+            HttpsURLConnection con = (HttpsURLConnection) new URL(url).openConnection();
+            con.setSSLSocketFactory(SSL_SOCKET_FACTORY);
             con.setUseCaches(false);
             con.setDoOutput(true);
             con.setRequestMethod("POST");

src/main/java/com/replaymod/online/api/replay/ReplayModApiMethods.java

@@ -2,7 +2,7 @@ package com.replaymod.online.api.replay;
 
 public class ReplayModApiMethods {
 
-    public static final String REPLAYMOD_BASE_URL = "http://ReplayMod.com/api/";
+    public static final String REPLAYMOD_BASE_URL = "https://ReplayMod.com/api/";
 
     public static final String register = REPLAYMOD_BASE_URL+"register";
     public static final String check_authkey = REPLAYMOD_BASE_URL+"check_authkey";

src/main/java/com/replaymod/online/gui/GuiLoginPrompt.java

@@ -21,7 +21,7 @@ public class GuiLoginPrompt extends AbstractGuiScreen<GuiLoginPrompt> {
     private GuiLabel noAccountLabel = new GuiLabel(this).setI18nText("replaymod.gui.login.noacc");
     private GuiLabel statusLabel = new GuiLabel(this);
     private GuiButton loginButton = new GuiButton(this).setI18nLabel("replaymod.gui.login").setSize(150, 20).setEnabled(false);
-    private GuiButton cancelButton = new GuiButton(this).setI18nLabel("replaymod.gui.cancel").setSize(150, 20);
+    public GuiButton cancelButton = new GuiButton(this).setI18nLabel("replaymod.gui.cancel").setSize(150, 20);
     private GuiButton registerButton = new GuiButton(this).setI18nLabel("replaymod.gui.register").setSize(150, 20);
     private GuiTextField username = new GuiTextField(this).setSize(145, 20).setMaxLength(16).setFocused(true);
     private GuiPasswordField password = new GuiPasswordField(this).setSize(145, 20)

src/main/java/com/replaymod/online/gui/GuiReplayCenter.java

@@ -28,6 +28,7 @@ import de.johni0702.minecraft.gui.container.GuiScreen;
 import de.johni0702.minecraft.gui.element.GuiButton;
 import de.johni0702.minecraft.gui.element.GuiImage;
 import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
 import de.johni0702.minecraft.gui.element.IGuiButton;
 import de.johni0702.minecraft.gui.element.advanced.GuiResourceLoadingList;
 import de.johni0702.minecraft.gui.layout.CustomLayout;
@@ -109,6 +110,7 @@ public class GuiReplayCenter extends GuiScreen {
         public void run() {
             GuiReplayEntry selected = list.getSelected();
             replayButtonPanel.forEach(IGuiButton.class).setEnabled(selected != null);
+            replayButtonPanel.forEach(IGuiButton.class).setTooltip(null);
             if (selected != null) {
                 int replayId = selected.fileInfo.getId();
                 boolean favorited = favoritedReplays.contains(replayId);
@@ -123,10 +125,22 @@ public class GuiReplayCenter extends GuiScreen {
                 favoriteButton.setI18nLabel("replaymod.gui.center." + (favorited ? "unfavorite" : "favorite"));
                 // Only allow button usage for either unfavorite or favorite after they've actually downloaded it
                 favoriteButton.setEnabled(favorited || selected.downloaded);
+                if (favoriteButton.isEnabled()) {
+                    favoriteButton.setTooltip(null);
+                } else {
+                    favoriteButton.setTooltip(new GuiTooltip().setI18nText("replaymod.gui.center.downloadrequired"));
+                }
 
                 // Similar for like/dislike buttons
                 likeButton.setEnabled(selected.downloaded);
                 dislikeButton.setEnabled(selected.downloaded);
+                if (likeButton.isEnabled()) {
+                    likeButton.setTooltip(null);
+                    dislikeButton.setTooltip(null);
+                } else {
+                    likeButton.setTooltip(new GuiTooltip().setI18nText("replaymod.gui.center.downloadrequired"));
+                    dislikeButton.setTooltip(new GuiTooltip().setI18nText("replaymod.gui.center.downloadrequired"));
+                }
                 likeButton.setI18nLabel("replaymod.gui." + (liked ? "removelike" : "like"));
                 dislikeButton.setI18nLabel("replaymod.gui." + (disliked ? "removedislike" : "dislike"));
             }

src/main/java/com/replaymod/online/gui/GuiUploadReplay.java

@@ -17,7 +17,12 @@ import com.replaymod.replaystudio.studio.ReplayStudio;
 import de.johni0702.minecraft.gui.container.GuiContainer;
 import de.johni0702.minecraft.gui.container.GuiPanel;
 import de.johni0702.minecraft.gui.container.GuiScreen;
-import de.johni0702.minecraft.gui.element.*;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiCheckbox;
+import de.johni0702.minecraft.gui.element.GuiImage;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTextField;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
 import de.johni0702.minecraft.gui.element.advanced.GuiDropdownMenu;
 import de.johni0702.minecraft.gui.element.advanced.GuiProgressBar;
 import de.johni0702.minecraft.gui.element.advanced.GuiTextArea;
@@ -234,6 +239,8 @@ public class GuiUploadReplay extends GuiScreen {
         });
 
         validateInputs();
+        name.onTextChanged(s -> validateInputs());
+        tags.onTextChanged(s -> validateInputs());
     }
 
     public void validateInputs() {

src/main/java/com/replaymod/pathing/gui/GuiKeyframeRepository.java

@@ -4,6 +4,7 @@ import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.SettableFuture;
 import com.replaymod.core.ReplayMod;
+import com.replaymod.core.utils.Utils;
 import com.replaymod.replay.ReplayModReplay;
 import com.replaymod.replaystudio.pathing.PathingRegistry;
 import com.replaymod.replaystudio.pathing.path.Path;
@@ -11,7 +12,11 @@ import com.replaymod.replaystudio.pathing.path.Timeline;
 import com.replaymod.replaystudio.replay.ReplayFile;
 import de.johni0702.minecraft.gui.GuiRenderer;
 import de.johni0702.minecraft.gui.RenderInfo;
-import de.johni0702.minecraft.gui.container.*;
+import de.johni0702.minecraft.gui.container.AbstractGuiClickableContainer;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import de.johni0702.minecraft.gui.container.GuiVerticalList;
 import de.johni0702.minecraft.gui.element.GuiButton;
 import de.johni0702.minecraft.gui.element.GuiLabel;
 import de.johni0702.minecraft.gui.element.GuiTextField;
@@ -41,9 +46,16 @@ public class GuiKeyframeRepository extends GuiScreen implements Closeable {
     public final GuiButton overwriteButton = new GuiButton(buttonPanel).onClick(new Runnable() {
         @Override
         public void run() {
-            timelines.put(selectedEntry.name, currentTimeline);
+            GuiYesNoPopup popup = GuiYesNoPopup.open(GuiKeyframeRepository.this,
-            overwriteButton.setDisabled();
+                    new GuiLabel().setI18nText("replaymod.gui.keyframerepo.overwrite").setColor(Colors.BLACK)
-            save();
+            ).setYesI18nLabel("gui.yes").setNoI18nLabel("gui.no");
+            Utils.addCallback(popup.getFuture(), doIt -> {
+                if (doIt) {
+                    timelines.put(selectedEntry.name, currentTimeline);
+                    overwriteButton.setDisabled();
+                    save();
+                }
+            }, Throwable::printStackTrace);
         }
     }).setSize(75, 20).setI18nLabel("replaymod.gui.overwrite").setDisabled();
     public final GuiButton saveAsButton = new GuiButton(buttonPanel).onClick(new Runnable() {

src/main/java/com/replaymod/recording/ReplayModRecording.java

@@ -4,8 +4,10 @@ import com.replaymod.core.ReplayMod;
 import com.replaymod.core.utils.Restrictions;
 import com.replaymod.recording.handler.ConnectionEventHandler;
 import com.replaymod.recording.packet.PacketListener;
-import net.minecraftforge.fml.common.FMLCommonHandler;
+import io.netty.channel.ChannelDuplexHandler;
+import io.netty.channel.ChannelHandler;
 import net.minecraft.network.NetworkManager;
+import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLInitializationEvent;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
@@ -14,15 +16,17 @@ import net.minecraftforge.fml.common.network.NetworkRegistry;
 import org.apache.logging.log4j.Logger;
 import org.lwjgl.input.Keyboard;
 
-@Mod(modid = ReplayModRecording.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModRecording.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModRecording {
     public static final String MOD_ID = "replaymod-recording";
 
     @Mod.Instance(MOD_ID)
     public static ReplayModRecording instance;
 
-    @Mod.Instance(ReplayMod.MOD_ID)
+    private ReplayMod core;
-    private static ReplayMod core;
 
     private Logger logger;
 
@@ -31,6 +35,7 @@ public class ReplayModRecording {
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
         logger = event.getModLog();
+        core = ReplayMod.instance;
 
         core.getSettingsRegistry().register(Setting.class);
 
@@ -51,9 +56,12 @@ public class ReplayModRecording {
         EventBus bus = FMLCommonHandler.instance().bus();
         bus.register(connectionEventHandler = new ConnectionEventHandler(logger, core));
 
-        NetworkRegistry.INSTANCE.newSimpleChannel(Restrictions.PLUGIN_CHANNEL);
+        NetworkRegistry.INSTANCE.newChannel(Restrictions.PLUGIN_CHANNEL, new RestrictionsChannelHandler());
     }
 
+    @ChannelHandler.Sharable
+    private static class RestrictionsChannelHandler extends ChannelDuplexHandler {}
+
     public void initiateRecording(NetworkManager networkManager) {
         connectionEventHandler.onConnectedToServerEvent(networkManager);
     }

src/main/java/com/replaymod/recording/handler/FMLHandshakeFilter.java

@@ -0,0 +1,25 @@
+package com.replaymod.recording.handler;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import net.minecraftforge.fml.common.network.handshake.FMLHandshakeMessage;
+
+/**
+ * Filters out all handshake packets that were sent for recording but must
+ * not actually be handled.
+ * This handler is only present when connected to the integrated server as
+ * otherwise all packets must be handled.
+ *
+ * When in single player, the game state packets must never be handled
+ * otherwise wired bugs related to semi-singletons can occur.
+ * See https://bugs.replaymod.com/show_bug.cgi?id=44
+ */
+public class FMLHandshakeFilter extends SimpleChannelInboundHandler<FMLHandshakeMessage> {
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, FMLHandshakeMessage msg) throws Exception {
+        if (!(msg instanceof FMLHandshakeMessage.RegistryData)) {
+            // Pass on everything but RegistryData messages
+            ctx.fireChannelRead(msg);
+        }
+    }
+}

src/main/java/com/replaymod/recording/mixin/MixinNetworkDispatcher.java

@@ -1,7 +1,11 @@
 package com.replaymod.recording.mixin;
 
+import com.replaymod.recording.handler.FMLHandshakeFilter;
+import io.netty.channel.ChannelPipeline;
 import io.netty.channel.embedded.EmbeddedChannel;
+import net.minecraftforge.fml.common.network.handshake.FMLHandshakeCodec;
 import net.minecraftforge.fml.common.network.handshake.NetworkDispatcher;
+import net.minecraftforge.fml.relauncher.Side;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
@@ -11,17 +15,32 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 @Mixin(value = NetworkDispatcher.class, remap = false)
 public abstract class MixinNetworkDispatcher {
 
+    @Shadow
+    private Side side;
+
     @Shadow
     private EmbeddedChannel handshakeChannel;
 
     /**
-     * Always sets fml:isLocal to false.
+     * Always sets fml:isLocal to false on the server side.
      * This effectively removes the difference in the FML handshake between SP and MP
      * and forces the block/item ids, etc. to always be send.
-     * This might have undesired side effects but at least it works at all.
+     * Injects a {@link FMLHandshakeFilter} on the client side to filter out
+     * those extra, unexpected packets.
      */
     @Inject(method = "insertIntoChannel", at=@At("HEAD"))
-    public void replayModRecording_forceIsLocalToFalse(CallbackInfo cb) {
+    public void replayModRecording_setupForLocalRecording(CallbackInfo cb) {
-        handshakeChannel.attr(NetworkDispatcher.IS_LOCAL).set(false);
+        // If we're in multiplayer, everything is fine as is
+        if (!handshakeChannel.attr(NetworkDispatcher.IS_LOCAL).get()) return;
+
+        if (side == Side.SERVER) {
+            // On the server side, force all packets to be sent
+            handshakeChannel.attr(NetworkDispatcher.IS_LOCAL).set(false);
+        } else {
+            // On the client side, discard additional packets
+            ChannelPipeline pipeline = handshakeChannel.pipeline();
+            pipeline.addAfter(pipeline.context(FMLHandshakeCodec.class).name(),
+                    "replaymod_filter", new FMLHandshakeFilter());
+        }
     }
 }

src/main/java/com/replaymod/recording/packet/ResourcePackRecorder.java

@@ -9,6 +9,7 @@ import com.replaymod.replaystudio.replay.ReplayFile;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiScreenWorking;
 import net.minecraft.client.gui.GuiYesNo;
+import net.minecraft.client.gui.GuiYesNoCallback;
 import net.minecraft.client.multiplayer.ServerData;
 import net.minecraft.client.multiplayer.ServerList;
 import net.minecraft.client.network.NetHandlerPlayClient;
@@ -26,6 +27,7 @@ import javax.annotation.Nonnull;
 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.util.HashMap;
 import java.util.Map;
 
 /**
@@ -52,6 +54,9 @@ public class ResourcePackRecorder {
             boolean doWrite = false; // Whether we are the first and have to write it
             synchronized (replayFile) { // Need to read, modify and write the resource pack index atomically
                 Map<Integer, String> index = replayFile.getResourcePackIndex();
+                if (index == null) {
+                    index = new HashMap<>();
+                }
                 if (!index.containsValue(hash)) {
                     // Hash is unknown, we have to write the resource pack ourselves
                     doWrite = true;
@@ -107,19 +112,24 @@ public class ResourcePackRecorder {
             } else if (serverData != null && serverData.getResourceMode() != ServerData.ServerResourceMode.PROMPT) {
                 netManager.sendPacket(new C19PacketResourcePackStatus(hash, C19PacketResourcePackStatus.Action.DECLINED));
             } else {
-                mc.addScheduledTask(() -> mc.displayGuiScreen(new GuiYesNo((result, id) -> {
+                // Lambdas MUST NOT be used with methods that need re-obfuscation in FG prior to 2.2 (will result in AbstractMethodError)
-                    if (serverData != null) {
+                //noinspection Convert2Lambda
-                        serverData.setResourceMode(result ? ServerData.ServerResourceMode.ENABLED : ServerData.ServerResourceMode.DISABLED);
+                mc.addScheduledTask(() -> mc.displayGuiScreen(new GuiYesNo(new GuiYesNoCallback() {
-                    }
+                    @Override
-                    if (result) {
+                    public void confirmClicked(boolean result, int id) {
-                        netManager.sendPacket(new C19PacketResourcePackStatus(hash, C19PacketResourcePackStatus.Action.ACCEPTED));
+                        if (serverData != null) {
-                        downloadResourcePackFuture(requestId, url, hash);
+                            serverData.setResourceMode(result ? ServerData.ServerResourceMode.ENABLED : ServerData.ServerResourceMode.DISABLED);
-                    } else {
+                        }
-                        netManager.sendPacket(new C19PacketResourcePackStatus(hash, C19PacketResourcePackStatus.Action.DECLINED));
+                        if (result) {
-                    }
+                            netManager.sendPacket(new C19PacketResourcePackStatus(hash, C19PacketResourcePackStatus.Action.ACCEPTED));
+                            ResourcePackRecorder.this.downloadResourcePackFuture(requestId, url, hash);
+                        } else {
+                            netManager.sendPacket(new C19PacketResourcePackStatus(hash, C19PacketResourcePackStatus.Action.DECLINED));
+                        }
 
-                    ServerList.func_147414_b(serverData);
+                        ServerList.func_147414_b(serverData);
-                    mc.displayGuiScreen(null);
+                        mc.displayGuiScreen(null);
+                    }
                 }, I18n.format("multiplayer.texturePrompt.line1"), I18n.format("multiplayer.texturePrompt.line2"), 0)));
             }
         }

src/main/java/com/replaymod/render/RenderSettings.java

@@ -1,6 +1,8 @@
 package com.replaymod.render;
 
+import lombok.AllArgsConstructor;
 import lombok.Data;
+import lombok.Getter;
 import net.minecraft.client.resources.I18n;
 import org.lwjgl.util.ReadableColor;
 
@@ -45,7 +47,7 @@ public class RenderSettings {
         }
 
         public String getValue() {
-            return "-y -f rawvideo -pix_fmt rgb24 -s %WIDTH%x%HEIGHT% -r %FPS% -i - " + preset;
+            return "-y -f rawvideo -pix_fmt rgb24 -s %WIDTH%x%HEIGHT% -r %FPS% -i - %FILTERS%" + preset;
         }
 
         public String getFileExtension() {
@@ -64,6 +66,19 @@ public class RenderSettings {
         }
     }
 
+    @AllArgsConstructor
+    public enum AntiAliasing {
+        NONE(1), X2(2), X4(4), X8(8);
+
+        @Getter
+        private final int factor;
+
+        @Override
+        public String toString() {
+            return I18n.format("replaymod.gui.rendersettings.antialiasing." + name().toLowerCase());
+        }
+    }
+
     private final RenderMethod renderMethod;
     private final EncodingPreset encodingPreset;
     private final int videoWidth;
@@ -78,9 +93,48 @@ public class RenderSettings {
     private final boolean stabilizeRoll;
     private final ReadableColor chromaKeyingColor;
     private final boolean inject360Metadata;
+    private final AntiAliasing antiAliasing;
 
     private final String exportCommand;
     private final String exportArguments;
 
     private final boolean highPerformance;
+
+    /**
+     * @return the width of the output video during rendering, including the upscale for Anti-Aliasing.
+     */
+    public int getVideoWidth() {
+        return videoWidth * antiAliasing.getFactor();
+    }
+
+    /**
+     * @return the height of the output video during rendering, including the upscale for Anti-Aliasing.
+     */
+    public int getVideoHeight() {
+        return videoHeight * antiAliasing.getFactor();
+    }
+
+    /**
+     * @return the actual width of the output video.
+     */
+    public int getTargetVideoWidth() {
+        return videoWidth;
+    }
+
+    /**
+     * @return the actual height of the output video.
+     */
+    public int getTargetVideoHeight() {
+        return videoHeight;
+    }
+
+    public String getVideoFilters() {
+        if (antiAliasing == AntiAliasing.NONE) {
+            return "";
+        } else {
+            double factor = 1.0 / antiAliasing.getFactor();
+            return String.format("-vf scale=iw*%1$s:ih*%1$s ", factor);
+        }
+    }
+
 }

src/main/java/com/replaymod/render/ReplayModRender.java

@@ -1,30 +1,39 @@
 package com.replaymod.render;
 
 import com.replaymod.core.ReplayMod;
+import com.replaymod.render.utils.RenderJob;
+import com.replaymod.replay.events.ReplayCloseEvent;
 import net.minecraft.crash.CrashReport;
 import net.minecraft.util.ReportedException;
 import net.minecraftforge.common.config.Configuration;
+import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import org.apache.commons.io.FileUtils;
 import org.apache.logging.log4j.Logger;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
 
-@Mod(modid = ReplayModRender.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModRender.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModRender {
     public static final String MOD_ID = "replaymod-render";
 
     @Mod.Instance(MOD_ID)
     public static ReplayModRender instance;
 
-    @Mod.Instance(ReplayMod.MOD_ID)
+    private ReplayMod core;
-    private static ReplayMod core;
 
-    private Logger logger;
+    public static Logger LOGGER;
 
     private Configuration configuration;
+    private final List<RenderJob> renderQueue = new ArrayList<>();
 
     public ReplayMod getCore() {
         return core;
@@ -32,12 +41,20 @@ public class ReplayModRender {
 
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
-        logger = event.getModLog();
+        LOGGER = event.getModLog();
+        core = ReplayMod.instance;
         configuration = new Configuration(event.getSuggestedConfigurationFile());
 
+        FMLCommonHandler.instance().bus().register(this);
+
         core.getSettingsRegistry().register(Setting.class);
     }
 
+    @SubscribeEvent
+    public void onReplayClose(ReplayCloseEvent.Post event) {
+        renderQueue.clear();
+    }
+
     public File getVideoFolder() {
         String path = core.getSettingsRegistry().get(Setting.RENDER_PATH);
         File folder = new File(path.startsWith("./") ? core.getMinecraft().mcDataDir : null, path);
@@ -52,4 +69,8 @@ public class ReplayModRender {
     public Configuration getConfiguration() {
         return configuration;
     }
+
+    public List<RenderJob> getRenderQueue() {
+        return renderQueue;
+    }
 }

src/main/java/com/replaymod/render/VideoWriter.java

@@ -7,17 +7,27 @@ import com.replaymod.render.utils.StreamPipe;
 import net.minecraft.client.Minecraft;
 import net.minecraft.crash.CrashReport;
 import net.minecraft.crash.CrashReportCategory;
+import net.minecraft.util.Util;
+import net.minecraftforge.fml.common.versioning.ComparableVersion;
 import org.apache.commons.exec.CommandLine;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.io.output.TeeOutputStream;
 import org.lwjgl.util.ReadableDimension;
 
-import java.io.*;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
 import java.nio.channels.Channels;
 import java.nio.channels.WritableByteChannel;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.Optional;
 import java.util.concurrent.TimeUnit;
 
+import static com.replaymod.render.ReplayModRender.LOGGER;
 import static org.apache.commons.lang3.Validate.isTrue;
 
 public class VideoWriter implements FrameConsumer<RGBFrame> {
@@ -43,10 +53,11 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
                     .replace("%HEIGHT%", String.valueOf(settings.getVideoHeight()))
                     .replace("%FPS%", String.valueOf(settings.getFramesPerSecond()))
                     .replace("%FILENAME%", fileName)
-                    .replace("%BITRATE%", String.valueOf(settings.getBitRate()));
+                    .replace("%BITRATE%", String.valueOf(settings.getBitRate()))
+                    .replace("%FILTERS%", settings.getVideoFilters());
 
-        String executable = settings.getExportCommand().isEmpty() ? "ffmpeg" : settings.getExportCommand();
+        String executable = settings.getExportCommand().isEmpty() ? findFFmpeg() : settings.getExportCommand();
-        System.out.println("Starting " + settings.getExportCommand() + " with args: " + commandArgs);
+        System.out.println("Starting " + executable + " with args: " + commandArgs);
         String[] cmdline = new CommandLine(executable).addArguments(commandArgs).toStrings();
         process = new ProcessBuilder(cmdline).directory(outputFolder).start();
         File exportLogFile = new File(Minecraft.getMinecraft().mcDataDir, "export.log");
@@ -57,6 +68,54 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
         channel = Channels.newChannel(outputStream);
     }
 
+    private String findFFmpeg() {
+        switch (Util.getOSType()) {
+            case WINDOWS:
+                // Allow windows users to unpack the ffmpeg archive into a sub-folder of their .minecraft folder
+                File inDotMinecraft = new File(Minecraft.getMinecraft().mcDataDir, "ffmpeg/bin/ffmpeg.exe");
+                if (inDotMinecraft.exists()) {
+                    LOGGER.debug("FFmpeg found in .minecraft/ffmpeg");
+                    return inDotMinecraft.getAbsolutePath();
+                }
+                break;
+            case OSX:
+                // The PATH doesn't seem to be set as expected on OSX, therefore we check some common locations ourselves
+                for (String path : new String[]{"/usr/local/bin/ffmpeg", "/usr/bin/ffmpeg"}) {
+                    File file = new File(path);
+                    if (file.exists()) {
+                        LOGGER.debug("Found FFmpeg at {}", path);
+                        return path;
+                    } else {
+                        LOGGER.debug("FFmpeg not located at {}", path);
+                    }
+                }
+                // Homebrew doesn't seem to reliably symlink its installed binaries either
+                File homebrewFolder = new File("/usr/local/Cellar/ffmpeg");
+                String[] homebrewVersions = homebrewFolder.list();
+                if (homebrewVersions != null) {
+                    Optional<File> latestOpt = Arrays.stream(homebrewVersions)
+                            .map(ComparableVersion::new) // Convert file name to comparable version
+                            .sorted(Comparator.reverseOrder()) // Sort for latest version
+                            .map(ComparableVersion::toString) // Convert back to file name
+                            .map(v -> new File(new File(homebrewFolder, v), "bin/ffmpeg")) // Convert to binary files
+                            .filter(File::exists) // Filter invalid installations (missing executable)
+                            .findFirst(); // Take first one
+                    if (latestOpt.isPresent()) {
+                        File latest = latestOpt.get();
+                        LOGGER.debug("Found {} versions of FFmpeg installed with homebrew, chose {}",
+                                homebrewVersions.length, latest);
+                        return latest.getAbsolutePath();
+                    }
+                }
+                break;
+            case LINUX: // Linux users are entrusted to have their PATH configured correctly (most package manager do this)
+            case SOLARIS: // Never heard of anyone running this mod on Solaris having any problems
+            case UNKNOWN: // Unknown OS, just try to use "ffmpeg"
+        }
+        LOGGER.debug("Using default FFmpeg executable");
+        return "ffmpeg";
+    }
+
     @Override
     public void close() throws IOException {
         IOUtils.closeQuietly(outputStream);

src/main/java/com/replaymod/render/gui/GuiRenderQueue.java

@@ -0,0 +1,277 @@
+package com.replaymod.render.gui;
+
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.replaymod.render.ReplayModRender;
+import com.replaymod.render.rendering.VideoRenderer;
+import com.replaymod.render.utils.RenderJob;
+import com.replaymod.replay.ReplayHandler;
+import com.replaymod.replaystudio.pathing.path.Timeline;
+import com.replaymod.replaystudio.util.I18n;
+import de.johni0702.minecraft.gui.GuiRenderer;
+import de.johni0702.minecraft.gui.RenderInfo;
+import de.johni0702.minecraft.gui.container.AbstractGuiClickableContainer;
+import de.johni0702.minecraft.gui.container.GuiContainer;
+import de.johni0702.minecraft.gui.container.GuiPanel;
+import de.johni0702.minecraft.gui.container.GuiVerticalList;
+import de.johni0702.minecraft.gui.element.GuiButton;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTextField;
+import de.johni0702.minecraft.gui.layout.CustomLayout;
+import de.johni0702.minecraft.gui.layout.GridLayout;
+import de.johni0702.minecraft.gui.layout.HorizontalLayout;
+import de.johni0702.minecraft.gui.popup.AbstractGuiPopup;
+import de.johni0702.minecraft.gui.popup.GuiYesNoPopup;
+import de.johni0702.minecraft.gui.utils.Colors;
+import net.minecraft.client.gui.GuiErrorScreen;
+import net.minecraft.crash.CrashReport;
+import net.minecraft.util.ReportedException;
+import org.lwjgl.util.Dimension;
+import org.lwjgl.util.ReadableDimension;
+
+import javax.annotation.Nullable;
+import java.io.IOException;
+import java.util.List;
+
+import static com.replaymod.render.ReplayModRender.LOGGER;
+
+public class GuiRenderQueue extends AbstractGuiPopup<GuiRenderQueue> {
+    private final GuiLabel title = new GuiLabel().setI18nText("replaymod.gui.renderqueue.title").setColor(Colors.BLACK);
+    private final GuiVerticalList list = new GuiVerticalList().setDrawShadow(true).setDrawSlider(true);
+    private final GuiButton addButton = new GuiButton().setI18nLabel("replaymod.gui.renderqueue.add").setSize(150, 20);
+    private final GuiButton renameButton = new GuiButton().setI18nLabel("replaymod.gui.rename").setSize(73, 20);
+    private final GuiButton removeButton = new GuiButton().setI18nLabel("replaymod.gui.remove").setSize(73, 20);
+    private final GuiButton renderButton = new GuiButton().setI18nLabel("replaymod.gui.render").setSize(150, 20);
+    private final GuiButton closeButton = new GuiButton().setI18nLabel("replaymod.gui.close").setSize(150, 20).onClick(this::close);
+
+    /*
+
+    |---------------------------------|
+    |       Add       |     Render    |
+    |---------------------------------|
+    | Rename | Remove |     Close     |
+    |---------------------------------|
+
+     */
+    private final GuiPanel buttonPanel = new GuiPanel()
+            .setLayout(new GridLayout().setSpacingX(5).setSpacingY(5).setColumns(2))
+            .addElements(null,
+                    addButton,
+                    renderButton,
+                    new GuiPanel().setLayout(new HorizontalLayout().setSpacing(4)).addElements(null,
+                            renameButton, removeButton),
+                    closeButton);
+
+    private final GuiContainer container;
+    private Entry selectedEntry;
+
+    {
+        popup.setLayout(new CustomLayout<GuiPanel>() {
+            @Override
+            protected void layout(GuiPanel container, int width, int height) {
+                pos(title, width / 2 - width(title) / 2, 0);
+                pos(list, 0, y(title) + height(title) + 5);
+                pos(buttonPanel, width / 2 - width(buttonPanel) / 2, height - height(buttonPanel));
+                size(list, width, y(buttonPanel) - y(list) - 10);
+            }
+
+            @Override
+            public ReadableDimension calcMinSize(GuiContainer<?> container) {
+                ReadableDimension screenSize = GuiRenderQueue.this.container.getMinSize();
+                return new Dimension(screenSize.getWidth() - 40,
+                        screenSize.getHeight() - 20 - buttonPanel.getMinSize().getHeight() - title.getMinSize().getHeight());
+            }
+        }).addElements(null, title, list, buttonPanel);
+    }
+
+    public GuiRenderQueue(GuiContainer container, GuiRenderSettings guiRenderSettings, ReplayHandler replayHandler, Timeline timeline) {
+        super(container);
+        this.container = container;
+        LOGGER.trace("Opening render queue popup");
+
+        setBackgroundColor(Colors.DARK_TRANSPARENT);
+
+        List<RenderJob> queue = ReplayModRender.instance.getRenderQueue();
+
+        for (RenderJob renderJob : queue) {
+            LOGGER.trace("Adding {} to job queue list", renderJob);
+            list.getListPanel().addElements(null, new Entry(renderJob));
+        }
+
+        addButton.onClick(() -> {
+            LOGGER.trace("Add button clicked");
+            // Open popup
+            GuiYesNoPopup popup = GuiYesNoPopup.open(container)
+                    .setYesI18nLabel("replaymod.gui.add").setNoI18nLabel("replaymod.gui.cancel");
+            popup.getInfo().setLayout(new HorizontalLayout(HorizontalLayout.Alignment.CENTER).setSpacing(5));
+            // Add content
+            GuiLabel label = new GuiLabel().setI18nText("replaymod.gui.renderqueue.jobname").setColor(Colors.BLACK);
+            GuiTextField nameField = new GuiTextField().setSize(150, 20).setFocused(true);
+            popup.getInfo().addElements(new HorizontalLayout.Data(0.5), label, nameField);
+            // Disable "Yes" button while name is empty
+            nameField.onTextChanged(old -> popup.getYesButton().setEnabled(!nameField.getText().isEmpty())).onEnter(() -> {
+                if (popup.getYesButton().isEnabled()) {
+                    popup.getYesButton().onClick();
+                }
+            });
+            popup.getYesButton().setDisabled();
+            // Register callback
+            Futures.addCallback(popup.getFuture(), new FutureCallback<Boolean>() {
+                @Override
+                public void onSuccess(@Nullable Boolean result) {
+                    if (result == Boolean.TRUE) {
+                        RenderJob newJob = new RenderJob();
+                        newJob.setName(nameField.getText());
+                        newJob.setSettings(guiRenderSettings.save(false));
+                        newJob.setTimeline(timeline);
+                        LOGGER.trace("Adding new job: {}", newJob);
+                        queue.add(newJob);
+                        list.getListPanel().addElements(null, new Entry(newJob));
+                    } else {
+                        LOGGER.trace("Adding cancelled");
+                    }
+                }
+
+                @Override
+                public void onFailure(Throwable t) {
+                    LOGGER.error("Add Job popup:", t);
+                }
+            });
+        });
+        if (guiRenderSettings != null) {
+            addButton.setEnabled(guiRenderSettings.renderButton.isEnabled());
+        }
+
+        renameButton.onClick(() -> {
+            LOGGER.trace("Rename button clicked for {}", selectedEntry.job);
+            // Open popup
+            GuiYesNoPopup popup = GuiYesNoPopup.open(container)
+                    .setYesI18nLabel("replaymod.gui.rename").setNoI18nLabel("replaymod.gui.cancel");
+            popup.getInfo().setLayout(new HorizontalLayout(HorizontalLayout.Alignment.CENTER).setSpacing(5));
+            // Add content
+            GuiLabel label = new GuiLabel().setI18nText("replaymod.gui.renderqueue.jobname").setColor(Colors.BLACK);
+            GuiTextField nameField = new GuiTextField().setSize(150, 20).setFocused(true)
+                    .setText(selectedEntry.job.getName());
+            popup.getInfo().addElements(new HorizontalLayout.Data(0.5), label, nameField);
+            // Disable "Yes" button while name is empty
+            nameField.onTextChanged(old -> popup.getYesButton().setEnabled(!nameField.getText().isEmpty())).onEnter(() -> {
+                if (popup.getYesButton().isEnabled()) {
+                    popup.getYesButton().onClick();
+                }
+            });
+            // Register callback
+            Futures.addCallback(popup.getFuture(), new FutureCallback<Boolean>() {
+                @Override
+                public void onSuccess(@Nullable Boolean result) {
+                    if (result == Boolean.TRUE) {
+                        LOGGER.trace("Renaming {} to \"{}\"", selectedEntry.job, nameField.getText());
+                        selectedEntry.setName(nameField.getText());
+                    } else {
+                        LOGGER.trace("Renaming cancelled");
+                    }
+                }
+
+                @Override
+                public void onFailure(Throwable t) {
+                    LOGGER.error("Rename Job popup:", t);
+                }
+            });
+        });
+
+        removeButton.onClick(() -> {
+            LOGGER.trace("Remove button clicked for {}", selectedEntry.job);
+            list.getListPanel().removeElement(selectedEntry);
+            queue.remove(selectedEntry.job);
+            selectedEntry = null;
+            updateButtons();
+        });
+
+        renderButton.onClick(() -> {
+            LOGGER.trace("Render button clicked");
+            // Close all GUIs (so settings in GuiRenderSettings are saved)
+            getMinecraft().displayGuiScreen(null);
+            // Start rendering
+            for (RenderJob renderJob : queue) {
+                LOGGER.info("Starting render job {}", renderJob);
+                try {
+                    VideoRenderer videoRenderer = new VideoRenderer(renderJob.getSettings(), replayHandler, renderJob.getTimeline());
+                    videoRenderer.renderVideo();
+                } catch (IOException e) {
+                    LOGGER.error("Rendering video:", e);
+                    GuiErrorScreen errorScreen = new GuiErrorScreen(I18n.format("replaymod.gui.rendering.error.title"),
+                            I18n.format("replaymod.gui.rendering.error.message"));
+                    getMinecraft().displayGuiScreen(errorScreen);
+                    return;
+                } catch (Throwable t) {
+                    CrashReport crashReport = CrashReport.makeCrashReport(t, "Rendering video");
+                    throw new ReportedException(crashReport);
+                }
+            }
+        });
+
+        updateButtons();
+    }
+
+    @Override
+    public void open() {
+        super.open();
+    }
+
+    @Override
+    protected GuiRenderQueue getThis() {
+        return this;
+    }
+
+    public void updateButtons() {
+        renameButton.setEnabled(selectedEntry != null);
+        removeButton.setEnabled(selectedEntry != null);
+        renderButton.setEnabled(!list.getListPanel().getChildren().isEmpty());
+    }
+
+    public class Entry extends AbstractGuiClickableContainer<Entry> {
+        public final GuiLabel label = new GuiLabel(this);
+        public final RenderJob job;
+
+        public Entry(RenderJob job) {
+            this.job = job;
+
+            setLayout(new CustomLayout<Entry>() {
+                @Override
+                protected void layout(Entry container, int width, int height) {
+                    pos(label, 5, height / 2 - height(label) / 2);
+                }
+
+                @Override
+                public ReadableDimension calcMinSize(GuiContainer<?> container) {
+                    return new Dimension(buttonPanel.calcMinSize().getWidth(), 16);
+                }
+            });
+            label.setText(job.getName());
+        }
+
+        @Override
+        protected void onClick() {
+            selectedEntry = this;
+            updateButtons();
+        }
+
+        @Override
+        public void draw(GuiRenderer renderer, ReadableDimension size, RenderInfo renderInfo) {
+            if (selectedEntry == this) {
+                renderer.drawRect(0, 0, size.getWidth(), size.getHeight(), Colors.BLACK);
+                renderer.drawRect(0, 0, 2, size.getHeight(), Colors.WHITE);
+            }
+            super.draw(renderer, size, renderInfo);
+        }
+
+        public void setName(String name) {
+            job.setName(name);
+            label.setText(name);
+        }
+
+        @Override
+        protected Entry getThis() {
+            return this;
+        }
+    }
+}

src/main/java/com/replaymod/render/gui/GuiRenderSettings.java

@@ -32,13 +32,14 @@ import net.minecraft.crash.CrashReport;
 import net.minecraft.util.ReportedException;
 import net.minecraftforge.common.config.Configuration;
 import net.minecraftforge.common.config.Property;
+import org.lwjgl.util.Color;
 import org.lwjgl.util.Dimension;
+import org.lwjgl.util.ReadableColor;
 import org.lwjgl.util.ReadableDimension;
 
 import javax.annotation.Nullable;
 import java.io.File;
 import java.io.IOException;
-import java.lang.reflect.Type;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Map;
@@ -79,8 +80,8 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
                 }
             }).setMinSize(new Dimension(0, 20)).setValues(RenderSettings.EncodingPreset.values());
 
-    public final GuiNumberField videoWidth = new GuiNumberField().setSize(50, 20).setMinValue(1);
+    public final GuiNumberField videoWidth = new GuiNumberField().setSize(50, 20).setMinValue(1).setValidateOnFocusChange(true);
-    public final GuiNumberField videoHeight = new GuiNumberField().setSize(50, 20).setMinValue(1);
+    public final GuiNumberField videoHeight = new GuiNumberField().setSize(50, 20).setMinValue(1).setValidateOnFocusChange(true);
     public final GuiSlider frameRateSlider = new GuiSlider().onValueChanged(new Runnable() {
         @Override
         public void run() {
@@ -92,7 +93,7 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
             .setLayout(new HorizontalLayout(HorizontalLayout.Alignment.RIGHT).setSpacing(2))
             .addElements(new HorizontalLayout.Data(0.5), videoWidth, new GuiLabel().setText("*"), videoHeight);
 
-    public final GuiNumberField bitRateField = new GuiNumberField().setValue(10).setSize(50, 20);
+    public final GuiNumberField bitRateField = new GuiNumberField().setValue(10).setSize(50, 20).setValidateOnFocusChange(true);
     public final GuiDropdownMenu<String> bitRateUnit = new GuiDropdownMenu<String>()
             .setSize(50, 20).setValues("bps", "kbps", "mbps").setSelected("mbps");
 
@@ -149,13 +150,18 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
     public final GuiCheckbox inject360Metadata = new GuiCheckbox()
             .setI18nLabel("replaymod.gui.rendersettings.360metadata");
 
+    public final GuiDropdownMenu<RenderSettings.AntiAliasing> antiAliasingDropdown = new GuiDropdownMenu<RenderSettings.AntiAliasing>()
+            .setSize(200, 20).setValues(RenderSettings.AntiAliasing.values()).setSelected(RenderSettings.AntiAliasing.NONE);
+
     public final GuiPanel advancedPanel = new GuiPanel().setLayout(new VerticalLayout().setSpacing(15))
             .addElements(null, nametagCheckbox, new GuiPanel().setLayout(
                     new GridLayout().setCellsEqualSize(false).setColumns(2).setSpacingX(5).setSpacingY(15))
                     .addElements(new GridLayout.Data(0, 0.5),
                             new GuiLabel().setI18nText("replaymod.gui.rendersettings.stabilizecamera"), stabilizePanel,
                             chromaKeyingCheckbox, chromaKeyingColor,
-                            inject360Metadata));
+                            inject360Metadata,
+                            new GuiLabel(), // to show the anti-aliasing options in a new line
+                            new GuiLabel().setI18nText("replaymod.gui.rendersettings.antialiasing"), antiAliasingDropdown));
 
     public final GuiTextField exportCommand = new GuiTextField().setI18nHint("replaymod.gui.rendersettings.command")
             .setSize(55, 20).setMaxLength(100);
@@ -179,6 +185,12 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
 
 
     public final GuiPanel buttonPanel = new GuiPanel(contentPanel).setLayout(new HorizontalLayout().setSpacing(4));
+    public final GuiButton queueButton = new GuiButton(buttonPanel).onClick(new Runnable() {
+        @Override
+        public void run() {
+            new GuiRenderQueue(GuiRenderSettings.this, GuiRenderSettings.this, replayHandler, timeline).open();
+        }
+    }).setSize(100, 20).setI18nLabel("replaymod.gui.renderqueue.open");
     public final GuiButton renderButton = new GuiButton(buttonPanel).onClick(new Runnable() {
         @Override
         public void run() {
@@ -198,13 +210,13 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
                 throw new ReportedException(crashReport);
             }
         }
-    }).setSize(148, 20).setI18nLabel("replaymod.gui.render");
+    }).setSize(100, 20).setI18nLabel("replaymod.gui.render");
     public final GuiButton cancelButton = new GuiButton(buttonPanel).onClick(new Runnable() {
         @Override
         public void run() {
             getMinecraft().displayGuiScreen(null);
         }
-    }).setSize(148, 20).setI18nLabel("replaymod.gui.cancel");
+    }).setSize(100, 20).setI18nLabel("replaymod.gui.cancel");
 
     {
         setBackground(Background.NONE);
@@ -261,12 +273,10 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
         this.timeline = timeline;
 
         String json = getConfigProperty(ReplayModRender.instance.getConfiguration()).getString();
-        RenderSettings settings = new GsonBuilder().registerTypeAdapter(RenderSettings.class, new InstanceCreator<RenderSettings>() {
+        RenderSettings settings = new GsonBuilder()
-                    @Override
+                .registerTypeAdapter(RenderSettings.class, (InstanceCreator<RenderSettings>) type -> getDefaultRenderSettings())
-                    public RenderSettings createInstance(Type type) {
+                .registerTypeAdapter(ReadableColor.class, new Gson().getAdapter(Color.class))
-                        return getDefaultRenderSettings();
+                .create().fromJson(json, RenderSettings.class);
-                    }
-                }).create().fromJson(json, RenderSettings.class);
         load(settings);
     }
 
@@ -347,8 +357,8 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
     public void load(RenderSettings settings) {
         renderMethodDropdown.setSelected(settings.getRenderMethod());
         encodingPresetDropdown.setSelected(settings.getEncodingPreset());
-        videoWidth.setValue(settings.getVideoWidth());
+        videoWidth.setValue(settings.getTargetVideoWidth());
-        videoHeight.setValue(settings.getVideoHeight());
+        videoHeight.setValue(settings.getTargetVideoHeight());
         frameRateSlider.setValue(settings.getFramesPerSecond() - 10);
         if (settings.getBitRate() % (1 << 20) == 0) {
             bitRateField.setValue(settings.getBitRate() >> 20);
@@ -380,6 +390,7 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
             chromaKeyingColor.setColor(settings.getChromaKeyingColor());
         }
         inject360Metadata.setChecked(settings.isInject360Metadata());
+        antiAliasingDropdown.setSelected(settings.getAntiAliasing());
         exportCommand.setText(settings.getExportCommand());
         exportArguments.setText(settings.getExportArguments());
 
@@ -401,6 +412,7 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
                 stabilizeRoll.isChecked() && (serialize || stabilizeRoll.isEnabled()),
                 chromaKeyingCheckbox.isChecked() ? chromaKeyingColor.getColor() : null,
                 inject360Metadata.isChecked() && (serialize || inject360Metadata.isEnabled()),
+                antiAliasingDropdown.getSelectedValue(),
                 exportCommand.getText(),
                 exportArguments.getText(),
                 net.minecraft.client.gui.GuiScreen.isCtrlKeyDown()
@@ -415,7 +427,7 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
 
     private RenderSettings getDefaultRenderSettings() {
         return new RenderSettings(RenderSettings.RenderMethod.DEFAULT, RenderSettings.EncodingPreset.MP4_DEFAULT, 1920, 1080, 60, 10 << 20, null,
-                true, false, false, false, null, false, "", RenderSettings.EncodingPreset.MP4_DEFAULT.getValue(), false);
+                true, false, false, false, null, false, RenderSettings.AntiAliasing.NONE, "", RenderSettings.EncodingPreset.MP4_DEFAULT.getValue(), false);
     }
 
     @Override
@@ -431,4 +443,8 @@ public class GuiRenderSettings extends GuiScreen implements Closeable {
         return configuration.get("rendersettings", "settings", "{}",
                 "Last state of the render settings GUI. Internal use only.");
     }
+
+    public ReplayHandler getReplayHandler() {
+        return replayHandler;
+    }
 }

src/main/java/com/replaymod/render/rendering/VideoRenderer.java

@@ -2,6 +2,7 @@ package com.replaymod.render.rendering;
 
 import com.replaymod.core.ReplayMod;
 import com.replaymod.pathing.player.AbstractTimelinePlayer;
+import com.replaymod.pathing.player.ReplayTimer;
 import com.replaymod.pathing.properties.TimestampProperty;
 import com.replaymod.render.RenderSettings;
 import com.replaymod.render.ReplayModRender;
@@ -55,6 +56,7 @@ public class VideoRenderer implements RenderInfo {
     private boolean debugInfoWasShown;
     private Map originalSoundLevels;
 
+    private TimelinePlayer timelinePlayer;
     private Future<Void> timelinePlayerFuture;
     private ChunkLoadingRenderGlobal chunkLoadingRenderGlobal;
 
@@ -174,7 +176,8 @@ public class VideoRenderer implements RenderInfo {
     }
 
     private void setup() {
-        timelinePlayerFuture = new TimelinePlayer(replayHandler).start(timeline);
+        timelinePlayer = new TimelinePlayer(replayHandler);
+        timelinePlayerFuture = timelinePlayer.start(timeline);
 
         if (!OpenGlHelper.isFramebufferEnabled()) {
             Display.setResizable(false);
@@ -229,6 +232,8 @@ public class VideoRenderer implements RenderInfo {
         if (!timelinePlayerFuture.isDone()) {
             timelinePlayerFuture.cancel(false);
         }
+        // Tear down of the timeline player might only happen the next tick after it was cancelled
+        timelinePlayer.onTick(new ReplayTimer.UpdatedEvent());
 
         if (!OpenGlHelper.isFramebufferEnabled()) {
             Display.setResizable(true);

src/main/java/com/replaymod/render/utils/RenderJob.java

@@ -0,0 +1,12 @@
+package com.replaymod.render.utils;
+
+import com.replaymod.render.RenderSettings;
+import com.replaymod.replaystudio.pathing.path.Timeline;
+import lombok.Data;
+
+@Data
+public class RenderJob {
+    private String name;
+    private Timeline timeline;
+    private RenderSettings settings;
+}

src/main/java/com/replaymod/replay/ReplayHandler.java

@@ -209,6 +209,9 @@ public class ReplayHandler {
      */
     public void spectateEntity(Entity e) {
         CameraEntity cameraEntity = getCameraEntity();
+        if (cameraEntity == null) {
+            return; // Cannot spectate if we have no camera
+        }
         if (e == null || e == cameraEntity) {
             spectating = null;
             e = cameraEntity;

src/main/java/com/replaymod/replay/ReplayModReplay.java

@@ -6,7 +6,11 @@ import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.replaymod.core.ReplayMod;
 import com.replaymod.core.utils.ModCompat;
-import com.replaymod.replay.camera.*;
+import com.replaymod.replay.camera.CameraController;
+import com.replaymod.replay.camera.CameraControllerRegistry;
+import com.replaymod.replay.camera.CameraEntity;
+import com.replaymod.replay.camera.ClassicCameraController;
+import com.replaymod.replay.camera.VanillaCameraController;
 import com.replaymod.replay.gui.overlay.GuiMarkerTimeline;
 import com.replaymod.replay.gui.screen.GuiModCompatWarning;
 import com.replaymod.replay.handler.GuiHandler;
@@ -28,15 +32,17 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Optional;
 
-@Mod(modid = ReplayModReplay.MOD_ID, useMetadata = true)
+@Mod(modid = ReplayModReplay.MOD_ID,
+        version = "@MOD_VERSION@",
+        acceptedMinecraftVersions = "@MC_VERSION@",
+        useMetadata = true)
 public class ReplayModReplay {
     public static final String MOD_ID = "replaymod-replay";
 
     @Mod.Instance(MOD_ID)
     public static ReplayModReplay instance;
 
-    @Mod.Instance(ReplayMod.MOD_ID)
+    private ReplayMod core;
-    private static ReplayMod core;
 
     private final CameraControllerRegistry cameraControllerRegistry = new CameraControllerRegistry();
 
@@ -51,6 +57,7 @@ public class ReplayModReplay {
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
         logger = event.getModLog();
+        core = ReplayMod.instance;
 
         core.getSettingsRegistry().register(Setting.class);
 
@@ -96,6 +103,7 @@ public class ReplayModReplay {
                         @Override
                         public void onSuccess(NoGuiScreenshot result) {
                             try {
+                                core.printInfoToChat("replaymod.chat.savingthumb");
                                 replayHandler.getReplayFile().writeThumb(result.getImage());
                                 core.printInfoToChat("replaymod.chat.savedthumb");
                             } catch (IOException e) {
@@ -106,6 +114,7 @@ public class ReplayModReplay {
                         @Override
                         public void onFailure(Throwable t) {
                             t.printStackTrace();
+                            core.printWarningToChat("replaymod.chat.failedthumb");
                         }
                     });
                 }

src/main/java/com/replaymod/replay/camera/CameraEntity.java

@@ -252,6 +252,15 @@ public class CameraEntity extends EntityPlayerSP {
         return false;
     }
 
+    @Override
+    public boolean isInvisible() {
+        Entity view = mc.getRenderViewEntity();
+        if (view != this) {
+            return view.isInvisible();
+        }
+        return super.isInvisible();
+    }
+
     @Override
     public ResourceLocation getLocationSkin() {
         Entity view = mc.getRenderViewEntity();

src/main/java/com/replaymod/replay/gui/overlay/GuiEditMarkerPopup.java

@@ -16,6 +16,10 @@ import org.lwjgl.input.Keyboard;
 import org.lwjgl.util.ReadablePoint;
 
 public class GuiEditMarkerPopup extends AbstractGuiPopup<GuiEditMarkerPopup> implements Typeable {
+    private static GuiNumberField newGuiNumberField() {
+        return new GuiNumberField().setSize(150, 20).setValidateOnFocusChange(true);
+    }
+
     private final ReplayHandler replayHandler;
     private final Marker marker;
 
@@ -23,15 +27,15 @@ public class GuiEditMarkerPopup extends AbstractGuiPopup<GuiEditMarkerPopup> imp
 
     public final GuiTextField nameField = new GuiTextField().setSize(150, 20);
     // TODO: Replace with a min/sec/msec field
-    public final GuiNumberField timeField = new GuiNumberField().setSize(150, 20).setPrecision(0);
+    public final GuiNumberField timeField = newGuiNumberField().setPrecision(0);
 
-    public final GuiNumberField xField = new GuiNumberField().setSize(150, 20).setPrecision(10);
+    public final GuiNumberField xField = newGuiNumberField().setPrecision(10);
-    public final GuiNumberField yField = new GuiNumberField().setSize(150, 20).setPrecision(10);
+    public final GuiNumberField yField = newGuiNumberField().setPrecision(10);
-    public final GuiNumberField zField = new GuiNumberField().setSize(150, 20).setPrecision(10);
+    public final GuiNumberField zField = newGuiNumberField().setPrecision(10);
 
-    public final GuiNumberField yawField = new GuiNumberField().setSize(150, 20).setPrecision(5);
+    public final GuiNumberField yawField = newGuiNumberField().setPrecision(5);
-    public final GuiNumberField pitchField = new GuiNumberField().setSize(150, 20).setPrecision(5);
+    public final GuiNumberField pitchField = newGuiNumberField().setPrecision(5);
-    public final GuiNumberField rollField = new GuiNumberField().setSize(150, 20).setPrecision(5);
+    public final GuiNumberField rollField = newGuiNumberField().setPrecision(5);
 
     public final GuiPanel inputs = GuiPanel.builder()
             .layout(new GridLayout().setColumns(2).setSpacingX(7).setSpacingY(3))

src/main/java/com/replaymod/replay/handler/GuiHandler.java

@@ -18,7 +18,6 @@ import java.util.List;
 
 public class GuiHandler {
     private static final int BUTTON_EXIT_SERVER = 1;
-    private static final int BUTTON_RETURN_TO_GAME = 4;
     private static final int BUTTON_ACHIEVEMENTS = 5;
     private static final int BUTTON_STATS = 6;
     private static final int BUTTON_OPEN_TO_LAN = 7;
@@ -49,6 +48,7 @@ public class GuiHandler {
             // Pause replay when menu is opened
             mod.getReplayHandler().getReplaySender().setReplaySpeed(0);
 
+            GuiButton achievements = null, stats = null, openToLan = null;
             @SuppressWarnings("unchecked")
             List<GuiButton> buttonList = event.buttonList;
             for(GuiButton b : new ArrayList<>(buttonList)) {
@@ -60,15 +60,39 @@ public class GuiHandler {
                         break;
                     // Remove "Achievements", "Stats" and "Open to LAN" buttons
                     case BUTTON_ACHIEVEMENTS:
+                        buttonList.remove(achievements = b);
+                        break;
                     case BUTTON_STATS:
+                        buttonList.remove(stats = b);
+                        break;
                     case BUTTON_OPEN_TO_LAN:
-                        buttonList.remove(b);
+                        buttonList.remove(openToLan = b);
-                }
+                        break;
-                // Move all buttons except the "Return to game" button upwards
-                if (b.id != BUTTON_RETURN_TO_GAME) {
-                    b.yPosition -= 48;
                 }
             }
+            if (achievements != null && stats != null) {
+                moveAllButtonsDirectlyBelowUpwards(buttonList, achievements.yPosition,
+                        achievements.xPosition, stats.xPosition + stats.width);
+            }
+            if (openToLan != null) {
+                moveAllButtonsDirectlyBelowUpwards(buttonList, openToLan.yPosition,
+                        openToLan.xPosition, openToLan.xPosition + openToLan.width);
+            }
+        }
+    }
+
+    /**
+     * Moves all buttons that are within a rectangle below a certain y coordinate upwards by 24 units.
+     * @param buttons List of buttons
+     * @param belowY The Y limit
+     * @param xStart Left x limit of the rectangle
+     * @param xEnd Right x limit of the rectangle
+     */
+    private void moveAllButtonsDirectlyBelowUpwards(List<GuiButton> buttons, int belowY, int xStart, int xEnd) {
+        for (GuiButton button : buttons) {
+            if (button.yPosition >= belowY && button.xPosition <= xEnd && button.xPosition + button.width >= xStart) {
+                button.yPosition -= 24;
+            }
         }
     }
 

src/main/java/com/replaymod/simplepathing/InterpolatorType.java

@@ -0,0 +1,54 @@
+package com.replaymod.simplepathing;
+
+import com.replaymod.replaystudio.pathing.interpolation.CatmullRomSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.CubicSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
+import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.function.Supplier;
+
+@AllArgsConstructor
+public enum InterpolatorType {
+    DEFAULT("default", null, null),
+    CATMULL_ROM("catmullrom", CatmullRomSplineInterpolator.class, () -> new CatmullRomSplineInterpolator(0.5)),
+    CUBIC("cubic", CubicSplineInterpolator.class, CubicSplineInterpolator::new),
+    LINEAR("linear", LinearInterpolator.class, LinearInterpolator::new);
+
+    @Getter
+    private String localizationKey;
+
+    @Getter
+    private Class<? extends Interpolator> interpolatorClass;
+
+    private Supplier<Interpolator> interpolatorConstructor;
+
+    public String getI18nName() {
+        return String.format("replaymod.gui.editkeyframe.interpolator.%1$s.name", localizationKey);
+    }
+
+    public String getI18nDescription() {
+        return String.format("replaymod.gui.editkeyframe.interpolator.%1$s.desc", localizationKey);
+    }
+
+    public static InterpolatorType fromString(String string) {
+        for (InterpolatorType t : values()) {
+            if (t.getI18nName().equals(string)) return t;
+        }
+        return CATMULL_ROM; //the default
+    }
+
+    public static InterpolatorType fromClass(Class<? extends Interpolator> cls) {
+        for (InterpolatorType type : values()) {
+            if (cls.equals(type.getInterpolatorClass())) {
+                return type;
+            }
+        }
+        return DEFAULT;
+    }
+
+    public Interpolator newInstance() {
+        return interpolatorConstructor.get();
+    }
+}

src/main/java/com/replaymod/simplepathing/ReplayModSimplePathing.java

@@ -1,45 +1,41 @@
 package com.replaymod.simplepathing;
 
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonWriter;
 import com.replaymod.core.ReplayMod;
 import com.replaymod.core.events.SettingsChangedEvent;
-import com.replaymod.pathing.properties.CameraProperties;
-import com.replaymod.pathing.properties.SpectatorProperty;
-import com.replaymod.pathing.properties.TimestampProperty;
 import com.replaymod.replay.events.ReplayCloseEvent;
 import com.replaymod.replay.events.ReplayOpenEvent;
-import com.replaymod.replaystudio.pathing.PathingRegistry;
-import com.replaymod.replaystudio.pathing.impl.TimelineImpl;
-import com.replaymod.replaystudio.pathing.interpolation.CubicSplineInterpolator;
-import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
-import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
 import com.replaymod.replaystudio.pathing.path.Keyframe;
-import com.replaymod.replaystudio.pathing.path.Timeline;
+import com.replaymod.simplepathing.SPTimeline.SPPath;
 import com.replaymod.simplepathing.gui.GuiPathing;
 import com.replaymod.simplepathing.preview.PathPreview;
+import lombok.Getter;
 import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import org.apache.logging.log4j.Logger;
+import org.lwjgl.input.Keyboard;
 
-import java.io.IOException;
+@Mod(modid = ReplayModSimplePathing.MOD_ID,
-
+        version = "@MOD_VERSION@",
-@Mod(modid = ReplayModSimplePathing.MOD_ID, useMetadata = true)
+        acceptedMinecraftVersions = "@MC_VERSION@",
-public class ReplayModSimplePathing implements PathingRegistry {
+        useMetadata = true)
+public class ReplayModSimplePathing {
     public static final String MOD_ID = "replaymod-simplepathing";
 
-    @Mod.Instance(ReplayMod.MOD_ID)
+    @Mod.Instance(MOD_ID)
-    private static ReplayMod core;
+    public static ReplayModSimplePathing instance;
 
-    private Logger logger;
+    private ReplayMod core;
+
+    public static Logger LOGGER;
 
     private GuiPathing guiPathing;
 
     @Mod.EventHandler
     public void preInit(FMLPreInitializationEvent event) {
-        logger = event.getModLog();
+        LOGGER = event.getModLog();
+        core = ReplayMod.instance;
 
         core.getSettingsRegistry().register(Setting.class);
 
@@ -47,88 +43,77 @@ public class ReplayModSimplePathing implements PathingRegistry {
 
         PathPreview pathPreview = new PathPreview(this);
         pathPreview.register();
+
+        core.getKeyBindingRegistry().registerKeyBinding("replaymod.input.keyframerepository", Keyboard.KEY_X, () -> {
+            if (guiPathing != null) guiPathing.keyframeRepoButtonPressed();
+        });
+        core.getKeyBindingRegistry().registerKeyBinding("replaymod.input.clearkeyframes", Keyboard.KEY_C, () -> {
+            if (guiPathing != null) guiPathing.clearKeyframesButtonPressed();
+        });
+        core.getKeyBindingRegistry().registerRepeatedKeyBinding("replaymod.input.synctimeline", Keyboard.KEY_V, () -> {
+            if (guiPathing != null) guiPathing.syncTimeButtonPressed();
+        });
+        core.getKeyBindingRegistry().registerRaw(Keyboard.KEY_DELETE, () -> {
+            if (guiPathing != null) guiPathing.deleteButtonPressed();
+        });
     }
 
     @SubscribeEvent
     public void postReplayOpen(ReplayOpenEvent.Post event) {
+        clearCurrentTimeline();
         guiPathing = new GuiPathing(core, this, event.getReplayHandler());
     }
 
     @SubscribeEvent
     public void onReplayClose(ReplayCloseEvent.Post event) {
+        currentTimeline = null;
         guiPathing = null;
-        currentTimeline = createTimeline();
+        selectedPath = null;
-        currentTimeline.createPath();
-        currentTimeline.createPath();
-        selectedKeyframe = null;
     }
 
     @SubscribeEvent
     public void onSettingsChanged(SettingsChangedEvent event) {
-        if (event.getKey() == Setting.LINEAR_INTERPOLATION) {
+        if (event.getKey() == Setting.DEFAULT_INTERPOLATION) {
             if (currentTimeline != null && guiPathing != null) {
-                currentTimeline.applyChange(guiPathing.updateInterpolators());
+                updateDefaultInterpolatorType();
             }
         }
     }
 
-    private Timeline currentTimeline = createTimeline(); { currentTimeline.createPath(); currentTimeline.createPath(); }
+    private SPTimeline currentTimeline;
-    private Keyframe selectedKeyframe;
 
-    public Keyframe getSelectedKeyframe() {
+    @Getter
-        return selectedKeyframe;
+    private SPPath selectedPath;
+    @Getter
+    private long selectedTime;
+
+    public boolean isSelected(Keyframe keyframe) {
+        return selectedPath != null && currentTimeline.getKeyframe(selectedPath, selectedTime) == keyframe;
     }
 
-    public void setSelectedKeyframe(Keyframe selected) {
+    public void setSelected(SPPath path, long time) {
-        this.selectedKeyframe = selected;
+        selectedPath = path;
+        selectedTime = time;
     }
 
-    public void setCurrentTimeline(Timeline currentTimeline) {
+    public void setCurrentTimeline(SPTimeline newTimeline) {
-        if (this.currentTimeline != currentTimeline) {
+        selectedPath = null;
-            selectedKeyframe = null;
+        currentTimeline = newTimeline;
-        }
+        updateDefaultInterpolatorType();
-        this.currentTimeline = currentTimeline;
     }
 
-    public Timeline getCurrentTimeline() {
+    public void clearCurrentTimeline() {
+        setCurrentTimeline(new SPTimeline());
+    }
+
+    public SPTimeline getCurrentTimeline() {
         return currentTimeline;
     }
 
-    @Override
+    private void updateDefaultInterpolatorType() {
-    public Timeline createTimeline() {
+        InterpolatorType newDefaultType =
-        Timeline timeline = new TimelineImpl();
+                InterpolatorType.fromString(core.getSettingsRegistry().get(Setting.DEFAULT_INTERPOLATION));
-
+        currentTimeline.setDefaultInterpolatorType(newDefaultType);
-        timeline.registerProperty(TimestampProperty.PROPERTY);
-        timeline.registerProperty(CameraProperties.POSITION);
-        timeline.registerProperty(CameraProperties.ROTATION);
-        timeline.registerProperty(SpectatorProperty.PROPERTY);
-
-        return timeline;
-    }
-
-    @Override
-    public void serializeInterpolator(JsonWriter writer, Interpolator interpolator) throws IOException {
-        if (interpolator instanceof LinearInterpolator) {
-            writer.value("linear");
-        } else if (interpolator instanceof CubicSplineInterpolator) {
-            writer.value("cubic-spline");
-        } else {
-            throw new IOException("Unknown interpolator type: " + interpolator);
-        }
-    }
-
-    @Override
-    public Interpolator deserializeInterpolator(JsonReader reader) throws IOException {
-        String type = reader.nextString();
-        switch (type) {
-            case "linear":
-                return new LinearInterpolator();
-            case "cubic-spline":
-                return new CubicSplineInterpolator();
-            default:
-                throw new IOException("Unknown interpolation type: " + type);
-
-        }
     }
 
     public ReplayMod getCore() {

src/main/java/com/replaymod/simplepathing/SPTimeline.java

@@ -0,0 +1,680 @@
+package com.replaymod.simplepathing;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Iterables;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import com.replaymod.pathing.properties.CameraProperties;
+import com.replaymod.pathing.properties.SpectatorProperty;
+import com.replaymod.pathing.properties.TimestampProperty;
+import com.replaymod.replaystudio.pathing.PathingRegistry;
+import com.replaymod.replaystudio.pathing.change.AddKeyframe;
+import com.replaymod.replaystudio.pathing.change.Change;
+import com.replaymod.replaystudio.pathing.change.CombinedChange;
+import com.replaymod.replaystudio.pathing.change.SetInterpolator;
+import com.replaymod.replaystudio.pathing.change.UpdateKeyframeProperties;
+import com.replaymod.replaystudio.pathing.impl.TimelineImpl;
+import com.replaymod.replaystudio.pathing.interpolation.CatmullRomSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.CubicSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
+import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
+import com.replaymod.replaystudio.pathing.path.Keyframe;
+import com.replaymod.replaystudio.pathing.path.Path;
+import com.replaymod.replaystudio.pathing.path.PathSegment;
+import com.replaymod.replaystudio.pathing.path.Timeline;
+import com.replaymod.replaystudio.pathing.property.Property;
+import com.replaymod.replaystudio.util.EntityPositionTracker;
+import com.replaymod.replaystudio.util.Location;
+import com.replaymod.simplepathing.properties.ExplicitInterpolationProperty;
+import lombok.Getter;
+import net.minecraft.crash.CrashReport;
+import net.minecraft.crash.CrashReportCategory;
+import net.minecraft.util.ReportedException;
+import org.apache.commons.lang3.ObjectUtils;
+import org.apache.commons.lang3.Validate;
+import org.apache.commons.lang3.tuple.Triple;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringReader;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.IdentityHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static com.replaymod.replaystudio.pathing.change.RemoveKeyframe.create;
+import static com.replaymod.simplepathing.ReplayModSimplePathing.LOGGER;
+
+/**
+ * Simplified timeline abstraction used in the SimplePathing module.
+ */
+public class SPTimeline implements PathingRegistry {
+    public enum SPPath {
+        TIME,
+        POSITION,
+    }
+
+    @Getter
+    private final Timeline timeline;
+    @Getter
+    private final Path timePath;
+    @Getter
+    private final Path positionPath;
+
+    @Getter
+    private EntityPositionTracker entityTracker;
+    private InterpolatorType defaultInterpolatorType;
+
+    public SPTimeline() {
+        this(createInitialTimeline());
+    }
+
+    public SPTimeline(Timeline timeline) {
+        this.timeline = timeline;
+        this.timePath = timeline.getPaths().get(SPPath.TIME.ordinal());
+        this.positionPath = timeline.getPaths().get(SPPath.POSITION.ordinal());
+    }
+
+    public Path getPath(SPPath path) {
+        switch (path) {
+            case TIME:
+                return getTimePath();
+            case POSITION:
+                return getPositionPath();
+        }
+        throw new IllegalArgumentException("Unknown path " + path);
+    }
+
+    public Keyframe getKeyframe(SPPath path, long keyframe) {
+        return getPath(path).getKeyframe(keyframe);
+    }
+
+    public void setEntityTracker(EntityPositionTracker entityTracker) {
+        Preconditions.checkState(this.entityTracker == null, "Entity tracker already set");
+        this.entityTracker = entityTracker;
+    }
+
+    public void setDefaultInterpolatorType(InterpolatorType defaultInterpolatorType) {
+        Validate.isTrue(defaultInterpolatorType != InterpolatorType.DEFAULT, "Must not be DEFAULT");
+        this.defaultInterpolatorType = Validate.notNull(defaultInterpolatorType);
+
+        if (entityTracker != null) {
+            timeline.pushChange(updateInterpolators());
+        }
+    }
+
+    public Change setDefaultInterpolator(Interpolator interpolator) {
+        Preconditions.checkState(defaultInterpolatorType != null, "Default interpolator type not set.");
+        Validate.isInstanceOf(defaultInterpolatorType.getInterpolatorClass(), interpolator);
+
+        registerPositionInterpolatorProperties(interpolator);
+
+        Change change = CombinedChange.create(
+                positionPath.getSegments().stream()
+                        // Ignore explicitly set segments
+                        .filter(s -> !s.getStartKeyframe().getValue(ExplicitInterpolationProperty.PROPERTY).isPresent())
+                        // Ignore spectator segments
+                        .filter(s -> !isSpectatorSegment(s))
+                        // Update interpolator for every remaining segment
+                        // This will create a fragmented interpolator which is split by the updateInterpolators call
+                        .map(s -> SetInterpolator.create(s, interpolator)).toArray(Change[]::new)
+        );
+        change.apply(timeline);
+        return CombinedChange.createFromApplied(change, updateInterpolators());
+    }
+
+    public boolean isTimeKeyframe(long time) {
+        return timePath.getKeyframe(time) != null;
+    }
+
+    public boolean isPositionKeyframe(long time) {
+        return positionPath.getKeyframe(time) != null;
+    }
+
+    public boolean isSpectatorKeyframe(long time) {
+        Keyframe keyframe = positionPath.getKeyframe(time);
+        return keyframe != null && keyframe.getValue(SpectatorProperty.PROPERTY).isPresent();
+    }
+
+    public void addPositionKeyframe(long time, double posX, double posY, double posZ,
+                                    float yaw, float pitch, float roll, int spectated) {
+        LOGGER.debug("Adding position keyframe at {} pos {}/{}/{} rot {}/{}/{} entId {}",
+                time, posX, posY, posZ, yaw, pitch, roll, spectated);
+
+        Path path = positionPath;
+
+        Preconditions.checkState(positionPath.getKeyframe(time) == null, "Keyframe already exists");
+
+        Change change = AddKeyframe.create(path, time);
+        change.apply(timeline);
+        Keyframe keyframe = path.getKeyframe(time);
+
+        UpdateKeyframeProperties.Builder builder = UpdateKeyframeProperties.create(path, keyframe);
+        builder.setValue(CameraProperties.POSITION, Triple.of(posX, posY, posZ));
+        builder.setValue(CameraProperties.ROTATION, Triple.of(yaw, pitch, roll));
+        if (spectated != -1) {
+            builder.setValue(SpectatorProperty.PROPERTY, spectated);
+        }
+        UpdateKeyframeProperties updateChange = builder.done();
+        updateChange.apply(timeline);
+        change = CombinedChange.createFromApplied(change, updateChange);
+
+        // If this new keyframe formed the first segment of the path
+        if (path.getSegments().size() == 1) {
+            // then create an initial interpolator of default type
+            PathSegment segment = path.getSegments().iterator().next();
+            Interpolator interpolator = createDefaultInterpolator();
+            SetInterpolator setInterpolator = SetInterpolator.create(segment, interpolator);
+            setInterpolator.apply(timeline);
+            change = CombinedChange.createFromApplied(change, setInterpolator);
+        }
+
+        // Update interpolators for spectator keyframes
+        // while this is overkill, it is far simpler than updating differently for every possible case
+        change = CombinedChange.createFromApplied(change, updateInterpolators());
+
+        Change specPosUpdate = updateSpectatorPositions();
+        specPosUpdate.apply(timeline);
+        change = CombinedChange.createFromApplied(change, specPosUpdate);
+
+        timeline.pushChange(change);
+    }
+
+    public Change updatePositionKeyframe(long time, double posX, double posY, double posZ,
+                                    float yaw, float pitch, float roll) {
+        LOGGER.debug("Updating position keyframe at {} to pos {}/{}/{} rot {}/{}/{}",
+                time, posX, posY, posZ, yaw, pitch, roll);
+
+        Keyframe keyframe = positionPath.getKeyframe(time);
+
+        Preconditions.checkState(keyframe != null, "Keyframe does not exists");
+        Preconditions.checkState(!keyframe.getValue(SpectatorProperty.PROPERTY).isPresent(), "Cannot update spectator keyframe");
+
+        Change change = UpdateKeyframeProperties.create(positionPath, keyframe)
+                .setValue(CameraProperties.POSITION, Triple.of(posX, posY, posZ))
+                .setValue(CameraProperties.ROTATION, Triple.of(yaw, pitch, roll))
+                .done();
+        change.apply(timeline);
+        return change;
+    }
+
+    public void removePositionKeyframe(long time) {
+        LOGGER.debug("Removing position keyframe at {}", time);
+
+        Path path = positionPath;
+        Keyframe keyframe = path.getKeyframe(time);
+
+        Preconditions.checkState(keyframe != null, "No keyframe at that time");
+
+        Change change = create(path, keyframe);
+        change.apply(timeline);
+
+        // Update interpolators for spectator keyframes
+        // while this is overkill, it is far simpler than updating differently for every possible case
+        change = CombinedChange.createFromApplied(change, updateInterpolators());
+
+        Change specPosUpdate = updateSpectatorPositions();
+        specPosUpdate.apply(timeline);
+        change = CombinedChange.createFromApplied(change, specPosUpdate);
+
+        timeline.pushChange(change);
+    }
+
+    public void addTimeKeyframe(long time, int replayTime) {
+        LOGGER.debug("Adding time keyframe at {} time {}", time, replayTime);
+
+        Path path = timePath;
+
+        Preconditions.checkState(path.getKeyframe(time) == null, "Keyframe already exists");
+
+        Change change = AddKeyframe.create(path, time);
+        change.apply(timeline);
+        Keyframe keyframe = path.getKeyframe(time);
+
+        UpdateKeyframeProperties updateChange = UpdateKeyframeProperties.create(path, keyframe)
+                .setValue(TimestampProperty.PROPERTY, replayTime)
+                .done();
+        updateChange.apply(timeline);
+        change = CombinedChange.createFromApplied(change, updateChange);
+
+        // If this new keyframe formed the first segment of the path
+        if (path.getSegments().size() == 1) {
+            // then create an initial interpolator
+            PathSegment segment = path.getSegments().iterator().next();
+            Interpolator interpolator = new LinearInterpolator();
+            interpolator.registerProperty(TimestampProperty.PROPERTY);
+            SetInterpolator setInterpolator = SetInterpolator.create(segment, interpolator);
+            setInterpolator.apply(timeline);
+            change = CombinedChange.createFromApplied(change, setInterpolator);
+        }
+
+        Change specPosUpdate = updateSpectatorPositions();
+        specPosUpdate.apply(timeline);
+        change = CombinedChange.createFromApplied(change, specPosUpdate);
+
+        timeline.pushChange(change);
+    }
+
+    public Change updateTimeKeyframe(long time, int replayTime) {
+        LOGGER.debug("Updating time keyframe at {} to time {}", time, replayTime);
+
+        Keyframe keyframe = timePath.getKeyframe(time);
+
+        Preconditions.checkState(keyframe != null, "Keyframe does not exists");
+
+        Change change = UpdateKeyframeProperties.create(timePath, keyframe)
+                .setValue(TimestampProperty.PROPERTY, replayTime)
+                .done();
+        change.apply(timeline);
+        return change;
+    }
+
+    public void removeTimeKeyframe(long time) {
+        LOGGER.debug("Removing time keyframe at {}", time);
+
+        Path path = timePath;
+        Keyframe keyframe = path.getKeyframe(time);
+
+        Preconditions.checkState(keyframe != null, "No keyframe at that time");
+
+        Change change = create(path, keyframe);
+        change.apply(timeline);
+
+        Change specPosUpdate = updateSpectatorPositions();
+        specPosUpdate.apply(timeline);
+        change = CombinedChange.createFromApplied(change, specPosUpdate);
+
+        timeline.pushChange(change);
+    }
+
+    public Change setInterpolatorToDefault(long time) {
+        LOGGER.debug("Setting interpolator of position keyframe at {} to the default", time);
+
+        Keyframe keyframe = positionPath.getKeyframe(time);
+
+        Preconditions.checkState(keyframe != null, "Keyframe does not exists");
+
+        Change change = UpdateKeyframeProperties.create(positionPath, keyframe)
+                .removeProperty(ExplicitInterpolationProperty.PROPERTY)
+                .done();
+        change.apply(timeline);
+        return CombinedChange.createFromApplied(change, updateInterpolators());
+    }
+
+    public Change setInterpolator(long time, Interpolator interpolator) {
+        LOGGER.debug("Setting interpolator of position keyframe at {} to {}", time, interpolator);
+
+        Keyframe keyframe = positionPath.getKeyframe(time);
+        Preconditions.checkState(keyframe != null, "Keyframe does not exists");
+        PathSegment segment = positionPath.getSegments().stream().filter(s -> s.getStartKeyframe() == keyframe)
+                .findFirst().orElseThrow(() -> new IllegalStateException("Keyframe has no following segment."));
+
+        registerPositionInterpolatorProperties(interpolator);
+
+        Change change = CombinedChange.create(
+                UpdateKeyframeProperties.create(positionPath, keyframe)
+                        .setValue(ExplicitInterpolationProperty.PROPERTY, ObjectUtils.NULL)
+                        .done(),
+                SetInterpolator.create(segment, interpolator)
+        );
+        change.apply(timeline);
+        return CombinedChange.createFromApplied(change, updateInterpolators());
+    }
+
+    public Change moveKeyframe(SPPath spPath, long oldTime, long newTime) {
+        LOGGER.debug("Moving keyframe on {} from {} to {}", spPath, oldTime, newTime);
+        Path path = getPath(spPath);
+        Keyframe keyframe = path.getKeyframe(oldTime);
+
+        Preconditions.checkState(keyframe != null, "No keyframe at specified time");
+
+        // Interpolator of the first segment might be required later if it is the only one
+        Optional<Interpolator> firstInterpolator =
+                path.getSegments().stream().findFirst().map(PathSegment::getInterpolator);
+
+        // The interpolator that will be lost once we remove the old keyframe and has to be restored afterwards
+        Optional<Interpolator> lostInterpolator = path.getSegments().stream().filter(s -> {
+            // If this is the last keyframe,
+            if (Iterables.getLast(path.getKeyframes()) == keyframe) {
+                return s.getEndKeyframe() == keyframe; // the previous interpolator will be lost
+            } else { // otherwise
+                return s.getStartKeyframe() == keyframe; // the following interpolator will be lost
+            }
+        }).findFirst().map(PathSegment::getInterpolator);
+
+        // First remove the old keyframe
+        Change removeChange = create(path, keyframe);
+        removeChange.apply(timeline);
+
+        // and add a new one at the correct time
+        Change addChange = AddKeyframe.create(path, newTime);
+        addChange.apply(timeline);
+
+        // Then copy over all properties
+        UpdateKeyframeProperties.Builder builder = UpdateKeyframeProperties.create(path, path.getKeyframe(newTime));
+        for (Property property : keyframe.getProperties()) {
+            copyProperty(property, keyframe, builder);
+        }
+        Change propertyChange = builder.done();
+        propertyChange.apply(timeline);
+
+
+        Change restoreInterpolatorChange;
+        Keyframe newKf = path.getKeyframe(newTime);
+        if (Iterables.getLast(path.getKeyframes()) != newKf) { // Unless this is the last keyframe
+            // the interpolator of the following segment has been lost and needs to be restored
+            restoreInterpolatorChange = lostInterpolator.<Change>flatMap(interpolator ->
+                    path.getSegments().stream().filter(s -> s.getStartKeyframe() == newKf).findFirst().map(segment ->
+                            SetInterpolator.create(segment, interpolator)
+                    )
+            ).orElseGet(CombinedChange::create);
+        } else { // If it is the last keyframe however,
+            // the interpolator of the previous segment has been lost and needs to be restored
+            restoreInterpolatorChange = path.getSegments().stream().filter(s -> s.getEndKeyframe() == newKf)
+                    .findFirst().flatMap(segment -> lostInterpolator.map(interpolator -> {
+                        // additionally, if the interpolation of this keyframe was set to explicit, that property
+                        // has to be transferred to the start keyframe of the new segment
+                        if (newKf.getValue(ExplicitInterpolationProperty.PROPERTY).isPresent()) {
+                            return CombinedChange.create(
+                                    SetInterpolator.create(segment, interpolator),
+                                    UpdateKeyframeProperties.create(path, segment.getStartKeyframe())
+                                            .setValue(ExplicitInterpolationProperty.PROPERTY, ObjectUtils.NULL).done()
+                            );
+                        } else {
+                            return SetInterpolator.create(segment, interpolator);
+                        }
+            })).orElseGet(CombinedChange::create);
+        }
+        restoreInterpolatorChange.apply(timeline);
+
+        // Finally update the interpolators
+        Change interpolatorUpdateChange;
+        if (spPath == SPPath.POSITION) {
+            // Position / Spectator keyframes need special handling
+            interpolatorUpdateChange = updateInterpolators();
+        } else {
+            // Time keyframes only need updating when only one segment of them exists
+            if (path.getSegments().size() == 1) {
+                assert firstInterpolator.isPresent() : "One segment should have existed before as well";
+                interpolatorUpdateChange = SetInterpolator.create(path.getSegments().iterator().next(), firstInterpolator.get());
+            } else {
+                interpolatorUpdateChange = CombinedChange.create(); // Noop change
+            }
+            interpolatorUpdateChange.apply(timeline);
+        }
+
+        // and update spectator positions
+        Change spectatorChange = updateSpectatorPositions();
+        spectatorChange.apply(timeline);
+
+        return CombinedChange.createFromApplied(removeChange, addChange, propertyChange,
+                restoreInterpolatorChange, interpolatorUpdateChange, spectatorChange);
+    }
+
+    // Helper method because generics cannot be defined on blocks
+    private <T> void copyProperty(Property<T> property, Keyframe from, UpdateKeyframeProperties.Builder to) {
+        from.getValue(property).ifPresent(value -> to.setValue(property, value));
+    }
+
+    private Change updateInterpolators() {
+        Collection<PathSegment> pathSegments = positionPath.getSegments();
+        // Contains updated pathsegment-interpolator mappings, may be changed multiple times over the course of this method
+        Map<PathSegment, Interpolator> updates = new HashMap<>();
+
+        // First, setup spectator interpolators
+        Interpolator interpolator = null;
+        // Iterate through all segments
+        for (PathSegment segment : pathSegments) {
+            if (isSpectatorSegment(segment)) {
+                // If the last segment was a spectator segment, then use its interpolator for this segment as well
+                if (interpolator == null) {
+                    // otherwise create a new interpolator
+                    interpolator = new LinearInterpolator();
+                    interpolator.registerProperty(SpectatorProperty.PROPERTY);
+                }
+                // Now that we have an interpolator, set it for the current segment
+                updates.put(segment, interpolator);
+            } else {
+                // Not a spectator segment, make sure we don't re-use the last interpolator (it would not be continuous)
+                interpolator = null;
+            }
+        }
+
+        // Then, if required, replace old default interpolators with new ones
+        pathSegments.stream()
+                // Ignore explicitly set segments
+                .filter(s -> !s.getStartKeyframe().getValue(ExplicitInterpolationProperty.PROPERTY).isPresent())
+                // Ignore spectator segments
+                .filter(s -> !isSpectatorSegment(s))
+                // Ignore already correct segments, should ignore all if default hasn't changed
+                .filter(s -> !s.getInterpolator().getClass().equals(defaultInterpolatorType.getInterpolatorClass()))
+                // Finally, set the interpolators
+                // This will create one interpolator per segment, they will be merged later
+                .forEach(segment -> updates.put(segment, createDefaultInterpolator()));
+
+        // All interpolators should now be set appropriately but may still be fragmented.
+        // Cleaning that up is a two step process
+
+        // Firstly, all interpolators that are not continuous need to be split up
+        Interpolator lastInterpolator = null;
+        Set<Interpolator> used = Collections.newSetFromMap(new IdentityHashMap<>());
+        for (PathSegment segment : pathSegments) {
+            if (isSpectatorSegment(segment)) {
+                lastInterpolator = null;
+                continue; // Chain broken by spectator segment
+            }
+
+            Interpolator currentInterpolator = updates.getOrDefault(segment, segment.getInterpolator());
+            if (lastInterpolator == currentInterpolator) {
+                continue; // All fine, interpolator is still continuous
+            }
+
+            // New interpolator, make sure it hasn't been used before
+            if (!used.add(interpolator)) {
+                // It has been used before, we need to clone it and use the clone instead
+                // This will create a new interpolator for each segment which will be merged later
+                currentInterpolator = cloneInterpolator(currentInterpolator);
+                updates.put(segment, currentInterpolator);
+            }
+            lastInterpolator = currentInterpolator;
+        }
+
+        // Secondly, all neighbouring interpolators that are equal need to be merged
+        lastInterpolator = null;
+        String lastInterpolatorSerialized = null;
+        for (PathSegment segment : pathSegments) {
+            if (isSpectatorSegment(segment)) {
+                lastInterpolator = null;
+                lastInterpolatorSerialized = null;
+                continue; // Spectator segments are continuous by construction
+            }
+            Interpolator currentInterpolator = updates.getOrDefault(segment, segment.getInterpolator());
+            String serialized = serializeInterpolator(currentInterpolator);
+            if (lastInterpolator != currentInterpolator && serialized.equals(lastInterpolatorSerialized)) {
+                // This interpolator is equal to the last one but not the same, needs merging
+                updates.put(segment, lastInterpolator);
+                continue;
+            }
+            // New interpolator, not related to the previous one, merged by definition
+            lastInterpolator = currentInterpolator;
+            lastInterpolatorSerialized = serialized;
+        }
+
+        Change change = CombinedChange.create(updates.entrySet().stream()
+                .map(e -> SetInterpolator.create(e.getKey(), e.getValue())).toArray(Change[]::new));
+        change.apply(timeline);
+        return change;
+    }
+
+    private boolean isSpectatorSegment(PathSegment segment) {
+        return segment.getStartKeyframe().getValue(SpectatorProperty.PROPERTY).isPresent()
+                && segment.getEndKeyframe().getValue(SpectatorProperty.PROPERTY).isPresent();
+    }
+
+    private Change updateSpectatorPositions() {
+        List<Change> changes = new ArrayList<>();
+        timePath.updateAll();
+        for (Keyframe keyframe : positionPath.getKeyframes()) {
+            Optional<Integer> spectator = keyframe.getValue(SpectatorProperty.PROPERTY);
+            if (spectator.isPresent()) {
+                Optional<Integer> time = timePath.getValue(TimestampProperty.PROPERTY, keyframe.getTime());
+                if (!time.isPresent()) {
+                    continue; // No time keyframes set at this video time, cannot determine replay time
+                }
+                Location expected = entityTracker.getEntityPositionAtTimestamp(spectator.get(), time.get());
+                if (expected == null) {
+                    continue; // We don't have any data on this entity for some reason
+                }
+                Triple<Double, Double, Double> pos = keyframe.getValue(CameraProperties.POSITION).orElse(Triple.of(0D, 0D, 0D));
+                Triple<Float, Float, Float> rot = keyframe.getValue(CameraProperties.ROTATION).orElse(Triple.of(0F, 0F, 0F));
+                Location actual = new Location(pos.getLeft(), pos.getMiddle(), pos.getRight(), rot.getLeft(), rot.getRight());
+                if (!expected.equals(actual)) {
+                    changes.add(UpdateKeyframeProperties.create(positionPath, keyframe)
+                            .setValue(CameraProperties.POSITION, Triple.of(expected.getX(), expected.getY(), expected.getZ()))
+                            .setValue(CameraProperties.ROTATION, Triple.of(expected.getYaw(), expected.getPitch(), 0f)).done()
+                    );
+                }
+            }
+        }
+        return CombinedChange.create(changes.toArray(new Change[changes.size()]));
+    }
+
+    private Interpolator createDefaultInterpolator() {
+        return registerPositionInterpolatorProperties(defaultInterpolatorType.newInstance());
+    }
+
+    private Interpolator registerPositionInterpolatorProperties(Interpolator interpolator) {
+        interpolator.registerProperty(CameraProperties.POSITION);
+        interpolator.registerProperty(CameraProperties.ROTATION);
+        return interpolator;
+    }
+
+    @Override
+    public Timeline createTimeline() {
+        return createTimelineStatic();
+    }
+
+    private static Timeline createInitialTimeline() {
+        Timeline timeline = createTimelineStatic();
+        timeline.createPath();
+        timeline.createPath();
+        return timeline;
+    }
+
+    private static Timeline createTimelineStatic() {
+        Timeline timeline = new TimelineImpl();
+
+        timeline.registerProperty(TimestampProperty.PROPERTY);
+        timeline.registerProperty(CameraProperties.POSITION);
+        timeline.registerProperty(CameraProperties.ROTATION);
+        timeline.registerProperty(SpectatorProperty.PROPERTY);
+        timeline.registerProperty(ExplicitInterpolationProperty.PROPERTY);
+
+        return timeline;
+    }
+
+    @Override
+    public void serializeInterpolator(JsonWriter writer, Interpolator interpolator) throws IOException {
+        if (interpolator instanceof LinearInterpolator) {
+            writer.value("linear");
+        } else if (interpolator instanceof CubicSplineInterpolator) {
+            writer.value("cubic-spline");
+        } else if (interpolator instanceof CatmullRomSplineInterpolator) {
+            writer.beginObject();
+            writer.name("type").value("catmull-rom-spline");
+            writer.name("alpha").value(((CatmullRomSplineInterpolator) interpolator).getAlpha());
+            writer.endObject();
+        } else {
+            throw new IOException("Unknown interpolator type: " + interpolator);
+        }
+    }
+
+    @Override
+    public Interpolator deserializeInterpolator(JsonReader reader) throws IOException {
+        String type;
+        JsonObject args;
+        switch (reader.peek()) {
+            case STRING:
+                type = reader.nextString();
+                args = null;
+                break;
+            case BEGIN_OBJECT:
+                args = new JsonParser().parse(reader).getAsJsonObject();
+                type = args.get("type").getAsString();
+                break;
+            default:
+                throw new IOException("Unexpected token: " + reader.peek());
+        }
+        switch (type) {
+            case "linear":
+                return new LinearInterpolator();
+            case "cubic-spline":
+                return new CubicSplineInterpolator();
+            case "catmull-rom-spline":
+                if (args == null || !args.has("alpha")) {
+                    throw new IOException("Missing alpha value for catmull-rom-spline.");
+                }
+                return new CatmullRomSplineInterpolator(args.get("alpha").getAsDouble());
+            default:
+                throw new IOException("Unknown interpolation type: " + type);
+
+        }
+    }
+
+    /**
+     * Clones an interpolator by de- and re-serializing it.
+     * @param interpolator The interpolator to clone
+     * @return The cloned interpolator
+     */
+    private Interpolator cloneInterpolator(Interpolator interpolator) {
+        Interpolator cloned = deserializeInterpolator(serializeInterpolator(interpolator));
+        interpolator.getKeyframeProperties().forEach(cloned::registerProperty);
+        return cloned;
+    }
+
+    /**
+     * Serializes the specific interpolator to String.
+     * Does <b>not</b> serialize the registered keyframe properties.
+     * @param interpolator The interpolator to serialize.
+     * @return The serialized interpolator
+     */
+    private String serializeInterpolator(Interpolator interpolator) {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+        JsonWriter jsonWriter = new JsonWriter(new PrintWriter(baos));
+        try {
+            jsonWriter.beginArray();
+            serializeInterpolator(jsonWriter, interpolator);
+            jsonWriter.endArray();
+            jsonWriter.flush();
+        } catch (IOException e) {
+            CrashReport crash = CrashReport.makeCrashReport(e, "Serializing interpolator");
+            CrashReportCategory category = crash.makeCategory("Serializing interpolator");
+            category.addCrashSectionCallable("Interpolator", interpolator::toString);
+            throw new ReportedException(crash);
+        }
+
+        return baos.toString();
+    }
+
+    private Interpolator deserializeInterpolator(String json) {
+        JsonReader jsonReader = new JsonReader(new StringReader(json));
+        try {
+            jsonReader.beginArray();
+            return deserializeInterpolator(jsonReader);
+        } catch (IOException e) {
+            CrashReport crash = CrashReport.makeCrashReport(e, "De-serializing interpolator");
+            CrashReportCategory category = crash.makeCategory("De-serializing interpolator");
+            category.addCrashSection("Interpolator", json);
+            throw new ReportedException(crash);
+        }
+    }
+}

src/main/java/com/replaymod/simplepathing/Setting.java

@@ -2,9 +2,25 @@ package com.replaymod.simplepathing;
 
 import com.replaymod.core.SettingsRegistry;
 
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
 public final class Setting<T> extends SettingsRegistry.SettingKeys<T> {
     public static final Setting<Boolean> PATH_PREVIEW = make("pathpreview", "pathpreview", true);
-    public static final Setting<Boolean> LINEAR_INTERPOLATION = make("linear_interpolation", "linearinterpolation", false);
+    public static final SettingsRegistry.MultipleChoiceSettingKeys<String> DEFAULT_INTERPOLATION;
+
+    static {
+        String format = "replaymod.gui.editkeyframe.interpolator.%s.name";
+        DEFAULT_INTERPOLATION = new SettingsRegistry.MultipleChoiceSettingKeys<>(
+                "simplepathing", "interpolator", "replaymod.gui.settings.interpolator",
+                String.format(format, InterpolatorType.fromString("invalid returns default").getLocalizationKey())
+        );
+        DEFAULT_INTERPOLATION.setChoices(
+                Arrays.stream(InterpolatorType.values()).filter(i -> i != InterpolatorType.DEFAULT)
+                        .map(i -> String.format(format, i.getLocalizationKey()))
+                        .collect(Collectors.toList())
+        );
+    }
 
     private static <T> Setting<T> make(String key, String displayName, T defaultValue) {
         return new Setting<>(key, displayName, defaultValue);

src/main/java/com/replaymod/simplepathing/gui/GuiEditKeyframe.java

@@ -5,14 +5,27 @@ import com.replaymod.pathing.properties.TimestampProperty;
 import com.replaymod.replay.ReplayModReplay;
 import com.replaymod.replaystudio.pathing.change.Change;
 import com.replaymod.replaystudio.pathing.change.CombinedChange;
-import com.replaymod.replaystudio.pathing.change.UpdateKeyframeProperties;
+import com.replaymod.replaystudio.pathing.interpolation.CatmullRomSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.CubicSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
+import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
 import com.replaymod.replaystudio.pathing.path.Keyframe;
 import com.replaymod.replaystudio.pathing.path.Path;
+import com.replaymod.replaystudio.pathing.path.PathSegment;
+import com.replaymod.simplepathing.InterpolatorType;
+import com.replaymod.simplepathing.SPTimeline;
+import com.replaymod.simplepathing.SPTimeline.SPPath;
+import com.replaymod.simplepathing.Setting;
+import com.replaymod.simplepathing.properties.ExplicitInterpolationProperty;
+import de.johni0702.minecraft.gui.container.AbstractGuiContainer;
 import de.johni0702.minecraft.gui.container.GuiPanel;
 import de.johni0702.minecraft.gui.element.GuiButton;
 import de.johni0702.minecraft.gui.element.GuiLabel;
 import de.johni0702.minecraft.gui.element.GuiNumberField;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
+import de.johni0702.minecraft.gui.element.IGuiClickable;
 import de.johni0702.minecraft.gui.element.IGuiLabel;
+import de.johni0702.minecraft.gui.element.advanced.GuiDropdownMenu;
 import de.johni0702.minecraft.gui.function.Typeable;
 import de.johni0702.minecraft.gui.layout.GridLayout;
 import de.johni0702.minecraft.gui.layout.HorizontalLayout;
@@ -20,10 +33,16 @@ import de.johni0702.minecraft.gui.layout.VerticalLayout;
 import de.johni0702.minecraft.gui.popup.AbstractGuiPopup;
 import de.johni0702.minecraft.gui.utils.Colors;
 import de.johni0702.minecraft.gui.utils.Consumer;
-import org.apache.commons.lang3.tuple.Triple;
+import lombok.Getter;
+import net.minecraft.client.resources.I18n;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.lwjgl.input.Keyboard;
 import org.lwjgl.util.ReadablePoint;
 
+import java.util.Map;
+import java.util.Optional;
+
 import static de.johni0702.minecraft.gui.utils.Utils.link;
 
 public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends AbstractGuiPopup<T> implements Typeable {
@@ -31,6 +50,11 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
         return new GuiNumberField().setPrecision(0).setValidateOnFocusChange(true);
     }
 
+    protected static final Logger logger = LogManager.getLogger();
+
+    protected final GuiPathing guiPathing;
+
+    protected final long time;
     protected final Keyframe keyframe;
     protected final Path path;
 
@@ -63,15 +87,16 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
         setBackgroundColor(Colors.DARK_TRANSPARENT);
 
         popup.setLayout(new VerticalLayout().setSpacing(10))
-                .addElements(new VerticalLayout.Data(0.5), title, inputs, timePanel, buttons);
+                .addElements(new VerticalLayout.Data(0.5, false), title, inputs, timePanel, buttons);
     }
 
-    public GuiEditKeyframe(GuiPathing gui, Path path, Keyframe keyframe, String type) {
+    public GuiEditKeyframe(GuiPathing gui, SPPath path, long time, String type) {
         super(ReplayModReplay.instance.getReplayHandler().getOverlay());
-        this.keyframe = keyframe;
+        this.guiPathing = gui;
-        this.path = path;
+        this.time = time;
+        this.path = gui.getMod().getCurrentTimeline().getPath(path);
+        this.keyframe = this.path.getKeyframe(time);
 
-        long time = keyframe.getTime();
         Consumer<String> updateSaveButtonState = s -> saveButton.setEnabled(canSave());
         timeMinField.setValue(time / 1000 / 60).onTextChanged(updateSaveButtonState);
         timeSecField.setValue(time / 1000 % 60).onTextChanged(updateSaveButtonState);
@@ -81,10 +106,14 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
         saveButton.onClick(() -> {
             Change change = save();
             long newTime = (timeMinField.getInteger() * 60 + timeSecField.getInteger()) * 1000 + timeMSecField.getInteger();
-            if (newTime != keyframe.getTime()) {
+            if (newTime != time) {
-                change = CombinedChange.createFromApplied(change, gui.moveKeyframe(path, keyframe, newTime));
+                change = CombinedChange.createFromApplied(change,
+                        gui.getMod().getCurrentTimeline().moveKeyframe(path, time, newTime));
+                if (gui.getMod().getSelectedPath() == path && gui.getMod().getSelectedTime() == time) {
+                    gui.getMod().setSelected(path, newTime);
+                }
             }
-            path.getTimeline().pushChange(change);
+            gui.getMod().getCurrentTimeline().getTimeline().pushChange(change);
             close();
         });
     }
@@ -114,7 +143,7 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
     protected abstract Change save();
 
     public static class Spectator extends GuiEditKeyframe<Spectator> {
-        public Spectator(GuiPathing gui, Path path, Keyframe keyframe) {
+        public Spectator(GuiPathing gui, SPPath path, long keyframe) {
             super(gui, path, keyframe, "spec");
 
             link(timeMinField, timeSecField, timeMSecField);
@@ -147,10 +176,10 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
                             timestampMSecField, new GuiLabel().setI18nText("replaymod.gui.milliseconds"));
         }
 
-        public Time(GuiPathing gui, Path path, Keyframe keyframe) {
+        public Time(GuiPathing gui, SPPath path, long keyframe) {
             super(gui, path, keyframe, "time");
 
-            keyframe.getValue(TimestampProperty.PROPERTY).ifPresent(time -> {
+            this.keyframe.getValue(TimestampProperty.PROPERTY).ifPresent(time -> {
                 timestampMinField.setValue(time / 1000 / 60);
                 timestampSecField.setValue(time / 1000 % 60);
                 timestampMSecField.setValue(time % 1000);
@@ -165,11 +194,7 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
         protected Change save() {
             int time = (timestampMinField.getInteger() * 60 + timestampSecField.getInteger()) * 1000
                     + timestampMSecField.getInteger();
-            Change change = UpdateKeyframeProperties.create(path, keyframe)
+            return guiPathing.getMod().getCurrentTimeline().updateTimeKeyframe(keyframe.getTime(), time);
-                    .setValue(TimestampProperty.PROPERTY, time)
-                    .done();
-            change.apply(path.getTimeline());
-            return change;
         }
 
         @Override
@@ -179,16 +204,19 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
     }
 
     public static class Position extends GuiEditKeyframe<Position> {
-        public final GuiNumberField xField = newGuiNumberField().setSize(150, 20).setPrecision(10);
+        public final GuiNumberField xField = newGuiNumberField().setSize(60, 20).setPrecision(5);
-        public final GuiNumberField yField = newGuiNumberField().setSize(150, 20).setPrecision(10);
+        public final GuiNumberField yField = newGuiNumberField().setSize(60, 20).setPrecision(5);
-        public final GuiNumberField zField = newGuiNumberField().setSize(150, 20).setPrecision(10);
+        public final GuiNumberField zField = newGuiNumberField().setSize(60, 20).setPrecision(5);
 
-        public final GuiNumberField yawField = newGuiNumberField().setSize(150, 20).setPrecision(5);
+        public final GuiNumberField yawField = newGuiNumberField().setSize(60, 20).setPrecision(5);
-        public final GuiNumberField pitchField = newGuiNumberField().setSize(150, 20).setPrecision(5);
+        public final GuiNumberField pitchField = newGuiNumberField().setSize(60, 20).setPrecision(5);
-        public final GuiNumberField rollField = newGuiNumberField().setSize(150, 20).setPrecision(5);
+        public final GuiNumberField rollField = newGuiNumberField().setSize(60, 20).setPrecision(5);
+
+        public final InterpolationPanel interpolationPanel = new InterpolationPanel();
 
         {
-            inputs.setLayout(new GridLayout().setCellsEqualSize(false).setColumns(4).setSpacingX(3).setSpacingY(5))
+            GuiPanel positionInputs = new GuiPanel()
+                    .setLayout(new GridLayout().setCellsEqualSize(false).setColumns(4).setSpacingX(3).setSpacingY(5))
                     .addElements(new GridLayout.Data(1, 0.5),
                             new GuiLabel().setI18nText("replaymod.gui.editkeyframe.xpos"), xField,
                             new GuiLabel().setI18nText("replaymod.gui.editkeyframe.camyaw"), yawField,
@@ -196,17 +224,20 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
                             new GuiLabel().setI18nText("replaymod.gui.editkeyframe.campitch"), pitchField,
                             new GuiLabel().setI18nText("replaymod.gui.editkeyframe.zpos"), zField,
                             new GuiLabel().setI18nText("replaymod.gui.editkeyframe.camroll"), rollField);
+
+            inputs.setLayout(new VerticalLayout().setSpacing(10)).addElements(new VerticalLayout.Data(0.5, false),
+                    positionInputs, interpolationPanel);
         }
 
-        public Position(GuiPathing gui, Path path, Keyframe keyframe) {
+        public Position(GuiPathing gui, SPPath path, long keyframe) {
             super(gui, path, keyframe, "pos");
 
-            keyframe.getValue(CameraProperties.POSITION).ifPresent(pos -> {
+            this.keyframe.getValue(CameraProperties.POSITION).ifPresent(pos -> {
                 xField.setValue(pos.getLeft());
                 yField.setValue(pos.getMiddle());
                 zField.setValue(pos.getRight());
             });
-            keyframe.getValue(CameraProperties.ROTATION).ifPresent(rot -> {
+            this.keyframe.getValue(CameraProperties.ROTATION).ifPresent(rot -> {
                 yawField.setValue(rot.getLeft());
                 pitchField.setValue(rot.getMiddle());
                 rollField.setValue(rot.getRight());
@@ -219,17 +250,181 @@ public abstract class GuiEditKeyframe<T extends GuiEditKeyframe<T>> extends Abst
 
         @Override
         protected Change save() {
-            Change change = UpdateKeyframeProperties.create(path, keyframe)
+            SPTimeline timeline = guiPathing.getMod().getCurrentTimeline();
-                    .setValue(CameraProperties.POSITION, Triple.of(xField.getDouble(), yField.getDouble(), zField.getDouble()))
+            Change positionChange = timeline.updatePositionKeyframe(time,
-                    .setValue(CameraProperties.ROTATION, Triple.of(yawField.getFloat(), pitchField.getFloat(), rollField.getFloat()))
+                    xField.getDouble(), yField.getDouble(), zField.getDouble(),
-                    .done();
+                    yawField.getFloat(), pitchField.getFloat(), rollField.getFloat()
-            change.apply(path.getTimeline());
+            );
-            return change;
+            if (interpolationPanel.getSettingsPanel() == null) {
+                // The last keyframe doesn't have interpolator settings because there is no segment following it
+                return positionChange;
+            }
+            Interpolator interpolator = interpolationPanel.getSettingsPanel().createInterpolator();
+            if (interpolationPanel.getInterpolatorType() == InterpolatorType.DEFAULT) {
+                return CombinedChange.createFromApplied(positionChange, timeline.setInterpolatorToDefault(time),
+                        timeline.setDefaultInterpolator(interpolator));
+            } else {
+                return CombinedChange.createFromApplied(positionChange, timeline.setInterpolator(time, interpolator));
+            }
         }
 
         @Override
         protected Position getThis() {
             return this;
         }
+
+        public class InterpolationPanel extends AbstractGuiContainer<InterpolationPanel> {
+
+            @Getter
+            private SettingsPanel settingsPanel;
+
+            private GuiDropdownMenu<InterpolatorType> dropdown;
+
+            public InterpolationPanel() {
+                setLayout(new VerticalLayout());
+
+                dropdown = new GuiDropdownMenu<InterpolatorType>()
+                        .setToString(s -> I18n.format(s.getI18nName()))
+                        .setValues(InterpolatorType.values()).setHeight(20)
+                        .onSelection(i -> setSettingsPanel(dropdown.getSelectedValue()));
+
+                // set hover tooltips
+                for (Map.Entry<InterpolatorType, IGuiClickable> e : dropdown.getDropdownEntries().entrySet()) {
+                    e.getValue().setTooltip(new GuiTooltip().setI18nText(e.getKey().getI18nDescription()));
+                }
+
+                GuiPanel dropdownPanel = new GuiPanel()
+                        .setLayout(new GridLayout().setCellsEqualSize(false).setColumns(2).setSpacingX(3).setSpacingY(5))
+                        .addElements(new GridLayout.Data(1, 0.5),
+                                new GuiLabel().setI18nText("replaymod.gui.editkeyframe.interpolator"), dropdown);
+
+
+                addElements(new VerticalLayout.Data(0.5, false), dropdownPanel);
+
+                Optional<PathSegment> segment = path.getSegments().stream()
+                        .filter(s -> s.getStartKeyframe() == keyframe).findFirst();
+                if (segment.isPresent()) {
+                    Interpolator interpolator = segment.get().getInterpolator();
+                    InterpolatorType type = InterpolatorType.fromClass(interpolator.getClass());
+                    if (keyframe.getValue(ExplicitInterpolationProperty.PROPERTY).isPresent()) {
+                        dropdown.setSelected(type); // trigger the callback once to display settings panel
+                    } else {
+                        setSettingsPanel(InterpolatorType.DEFAULT);
+                        type = InterpolatorType.DEFAULT;
+                    }
+                    if (getInterpolatorTypeNoDefault(type).getInterpolatorClass().isInstance(interpolator)) {
+                        //noinspection unchecked
+                        settingsPanel.loadSettings(interpolator);
+                    }
+                } else {
+                    // Disable dropdown if this is the last keyframe
+                    dropdown.setDisabled();
+                }
+            }
+
+            public void setSettingsPanel(InterpolatorType type) {
+                removeElement(this.settingsPanel);
+
+                switch (getInterpolatorTypeNoDefault(type)) {
+                    case CATMULL_ROM:
+                        settingsPanel = new CatmullRomSettingsPanel();
+                        break;
+                    case CUBIC:
+                        settingsPanel = new CubicSettingsPanel();
+                        break;
+                    case LINEAR:
+                        settingsPanel = new LinearSettingsPanel();
+                        break;
+                }
+
+                addElements(new GridLayout.Data(0.5, 0.5), settingsPanel);
+            }
+
+            protected InterpolatorType getInterpolatorTypeNoDefault(InterpolatorType interpolatorType) {
+                if (interpolatorType == InterpolatorType.DEFAULT || interpolatorType == null) {
+                    InterpolatorType defaultType = InterpolatorType.fromString(
+                            guiPathing.getMod().getCore().getSettingsRegistry().get(Setting.DEFAULT_INTERPOLATION));
+                    return defaultType;
+                }
+                return interpolatorType;
+            }
+
+            public InterpolatorType getInterpolatorType() {
+                return dropdown.getSelectedValue();
+            }
+
+            @Override
+            protected InterpolationPanel getThis() {
+                return this;
+            }
+
+            public abstract class SettingsPanel<I extends Interpolator, T extends SettingsPanel<I, T>> extends AbstractGuiContainer<T> {
+
+                public abstract void loadSettings(I interpolator);
+
+                public abstract I createInterpolator();
+            }
+
+            public class CatmullRomSettingsPanel extends SettingsPanel<CatmullRomSplineInterpolator, CatmullRomSettingsPanel> {
+                public final GuiLabel alphaLabel = new GuiLabel().setColor(Colors.BLACK)
+                        .setI18nText("replaymod.gui.editkeyframe.interpolator.catmullrom.alpha");
+                public final GuiNumberField alphaField = new GuiNumberField().setSize(100, 20).setPrecision(5)
+                        .setMinValue(0).setValidateOnFocusChange(true);
+
+                {
+                    setLayout(new HorizontalLayout(HorizontalLayout.Alignment.CENTER));
+                    addElements(new HorizontalLayout.Data(0.5), alphaLabel, alphaField);
+                }
+
+                @Override
+                public void loadSettings(CatmullRomSplineInterpolator interpolator) {
+                    alphaField.setValue(interpolator.getAlpha());
+                }
+
+                @Override
+                public CatmullRomSplineInterpolator createInterpolator() {
+                    return new CatmullRomSplineInterpolator(alphaField.getDouble());
+                }
+
+                @Override
+                protected CatmullRomSettingsPanel getThis() {
+                    return this;
+                }
+            }
+
+            public class CubicSettingsPanel extends SettingsPanel<CubicSplineInterpolator, CubicSettingsPanel> {
+
+                @Override
+                public void loadSettings(CubicSplineInterpolator interpolator) {
+                }
+
+                @Override
+                public CubicSplineInterpolator createInterpolator() {
+                    return new CubicSplineInterpolator();
+                }
+
+                @Override
+                protected CubicSettingsPanel getThis() {
+                    return this;
+                }
+            }
+
+            public class LinearSettingsPanel extends SettingsPanel<LinearInterpolator, LinearSettingsPanel> {
+
+                @Override
+                public void loadSettings(LinearInterpolator interpolator) {
+                }
+
+                @Override
+                public LinearInterpolator createInterpolator() {
+                    return new LinearInterpolator();
+                }
+
+                @Override
+                protected LinearSettingsPanel getThis() {
+                    return this;
+                }
+            }
+        }
     }
 }

src/main/java/com/replaymod/simplepathing/gui/GuiKeyframeTimeline.java

@@ -1,7 +1,5 @@
 package com.replaymod.simplepathing.gui;
 
-import com.google.common.base.Function;
-import com.google.common.collect.Iterables;
 import com.replaymod.core.ReplayMod;
 import com.replaymod.pathing.properties.CameraProperties;
 import com.replaymod.pathing.properties.SpectatorProperty;
@@ -11,9 +9,10 @@ import com.replaymod.replaystudio.pathing.change.Change;
 import com.replaymod.replaystudio.pathing.path.Keyframe;
 import com.replaymod.replaystudio.pathing.path.Path;
 import com.replaymod.replaystudio.pathing.path.PathSegment;
-import com.replaymod.replaystudio.pathing.path.Timeline;
 import com.replaymod.replaystudio.pathing.property.Property;
 import com.replaymod.simplepathing.ReplayModSimplePathing;
+import com.replaymod.simplepathing.SPTimeline;
+import com.replaymod.simplepathing.SPTimeline.SPPath;
 import de.johni0702.minecraft.gui.GuiRenderer;
 import de.johni0702.minecraft.gui.element.advanced.AbstractGuiTimeline;
 import de.johni0702.minecraft.gui.function.Draggable;
@@ -23,7 +22,6 @@ import org.lwjgl.util.Point;
 import org.lwjgl.util.ReadableDimension;
 import org.lwjgl.util.ReadablePoint;
 
-import javax.annotation.Nullable;
 import java.util.Comparator;
 import java.util.Optional;
 
@@ -37,14 +35,14 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
     private final GuiPathing gui;
 
     /**
-     * The keyframe that was last clicked on using the left mouse button.
+     * The keyframe (time on timeline) that was last clicked on using the left mouse button.
      */
-    private Keyframe lastClickedKeyframe;
+    private long lastClickedKeyframe;
 
     /**
-     * Id of the path of {@link #lastClickedKeyframe}.
+     * Path of {@link #lastClickedKeyframe}.
      */
-    private int lastClickedPath;
+    private SPPath lastClickedPath;
 
     /**
      * The time at which {@link #lastClickedKeyframe} was updated.
@@ -89,18 +87,13 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
 
         renderer.bindTexture(ReplayMod.TEXTURE);
 
-        for (Keyframe keyframe : Iterables.concat(Iterables.transform(mod.getCurrentTimeline().getPaths(), new Function<Path, Iterable<Keyframe>>() {
+        SPTimeline timeline = mod.getCurrentTimeline();
-            @Nullable
+
-            @Override
+        timeline.getTimeline().getPaths().stream().flatMap(path -> path.getKeyframes().stream()).forEach(keyframe -> {
-            public Iterable<Keyframe> apply(@Nullable Path input) {
-                assert input != null;
-                return input.getKeyframes();
-            }
-        }))) {
             if (keyframe.getTime() >= startTime && keyframe.getTime() <= endTime) {
                 double relativeTime = keyframe.getTime() - startTime;
                 int positonX = BORDER_LEFT + (int) (relativeTime / visibleTime * visibleWidth) - KEYFRAME_SIZE / 2;
-                int u = KEYFRAME_TEXTURE_X + (mod.getSelectedKeyframe() == keyframe ? KEYFRAME_SIZE : 0);
+                int u = KEYFRAME_TEXTURE_X + (mod.isSelected(keyframe) ? KEYFRAME_SIZE : 0);
                 int v = KEYFRAME_TEXTURE_Y;
                 if (keyframe.getValue(CameraProperties.POSITION).isPresent()) {
                     if (keyframe.getValue(SpectatorProperty.PROPERTY).isPresent()) {
@@ -113,10 +106,10 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
                     renderer.drawTexturedRect(positonX, BORDER_TOP + KEYFRAME_SIZE, u, v, KEYFRAME_SIZE, KEYFRAME_SIZE);
                 }
             }
-        }
+        });
 
         // Draw colored quads on spectator path segments
-        for (PathSegment segment : mod.getCurrentTimeline().getPaths().get(GuiPathing.POSITION_PATH).getSegments()) {
+        for (PathSegment segment : timeline.getPositionPath().getSegments()) {
             if (segment.getInterpolator() == null
                     || !segment.getInterpolator().getKeyframeProperties().contains(SpectatorProperty.PROPERTY)) {
                 continue; // Not a spectator segment
@@ -125,7 +118,7 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
         }
 
         // Draw red quads on time path segments that would require time going backwards
-        for (PathSegment segment : mod.getCurrentTimeline().getPaths().get(GuiPathing.TIME_PATH).getSegments()) {
+        for (PathSegment segment : timeline.getTimePath().getSegments()) {
             long startTimestamp = segment.getStartKeyframe().getValue(TimestampProperty.PROPERTY).orElseThrow(IllegalStateException::new);
             long endTimestamp = segment.getEndKeyframe().getValue(TimestampProperty.PROPERTY).orElseThrow(IllegalStateException::new);
             if (endTimestamp >= startTimestamp) {
@@ -162,29 +155,28 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
      * @param position The raw position
      * @return Pair of path id and keyframe or null when no keyframe was clicked
      */
-    private Pair<Integer, Keyframe> getKeyframe(ReadablePoint position) {
+    private Pair<SPPath, Long> getKeyframe(ReadablePoint position) {
         int time = getTimeAt(position.getX(), position.getY());
         if (time != -1) {
             Point mouse = new Point(position);
             getContainer().convertFor(this, mouse);
             int mouseY = mouse.getY();
             if (mouseY > BORDER_TOP && mouseY < BORDER_TOP + 2 * KEYFRAME_SIZE) {
-                Timeline timeline = gui.getMod().getCurrentTimeline();
+                SPPath path;
-                int path;
                 if (mouseY <= BORDER_TOP + KEYFRAME_SIZE) {
                     // Position keyframe
-                    path = GuiPathing.POSITION_PATH;
+                    path = SPPath.POSITION;
                 } else {
                     // Time keyframe
-                    path = GuiPathing.TIME_PATH;
+                    path = SPPath.TIME;
                 }
                 int visibleTime = (int) (getZoom() * getLength());
-                int tolerance = visibleTime * KEYFRAME_SIZE / (size.getWidth() - BORDER_LEFT - BORDER_RIGHT) / 2;
+                int tolerance = visibleTime * KEYFRAME_SIZE / (getLastSize().getWidth() - BORDER_LEFT - BORDER_RIGHT) / 2;
-                Optional<Keyframe> keyframe = timeline.getPaths().get(path).getKeyframes().stream()
+                Optional<Keyframe> keyframe = gui.getMod().getCurrentTimeline().getPath(path).getKeyframes().stream()
                         .filter(k -> Math.abs(k.getTime() - time) <= tolerance)
                         .sorted(Comparator.comparing(k -> Math.abs(k.getTime() - time)))
                         .findFirst();
-                return Pair.of(path, keyframe.orElse(null));
+                return Pair.of(path, keyframe.map(Keyframe::getTime).orElse(null));
             }
         }
         return Pair.of(null, null);
@@ -193,30 +185,31 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
     @Override
     public boolean mouseClick(ReadablePoint position, int button) {
         int time = getTimeAt(position.getX(), position.getY());
-        Pair<Integer, Keyframe> pathKeyframePair = getKeyframe(position);
+        Pair<SPPath, Long> pathKeyframePair = getKeyframe(position);
         if (pathKeyframePair.getRight() != null) {
+            SPPath path = pathKeyframePair.getLeft();
             // Clicked on keyframe
-            Keyframe keyframe = pathKeyframePair.getRight();
+            long keyframeTime = pathKeyframePair.getRight();
             if (button == 0) { // Left click
                 long now = Minecraft.getSystemTime();
-                if (lastClickedKeyframe == keyframe) {
+                if (lastClickedKeyframe == keyframeTime) {
                     // Clicked the same keyframe again, potentially a double click
                     if (now - lastClickedTime < DOUBLE_CLICK_INTERVAL) {
                         // Yup, double click, open the edit keyframe gui
-                        Path path = gui.getMod().getCurrentTimeline().getPaths().get(pathKeyframePair.getLeft());
+                        gui.openEditKeyframePopup(path, keyframeTime);
-                        gui.openEditKeyframePopup(path, keyframe);
                         return true;
                     }
                 }
                 // Not a double click, just update the click time and selection
                 lastClickedTime = now;
-                lastClickedKeyframe = keyframe;
+                lastClickedKeyframe = keyframeTime;
-                lastClickedPath = pathKeyframePair.getLeft();
+                lastClickedPath = path;
-                gui.getMod().setSelectedKeyframe(lastClickedKeyframe);
+                gui.getMod().setSelected(lastClickedPath, lastClickedKeyframe);
                 // We might be dragging
                 draggingStartX = position.getX();
                 dragging = true;
             } else if (button == 1) { // Right click
+                Keyframe keyframe = gui.getMod().getCurrentTimeline().getKeyframe(path, keyframeTime);
                 for (Property property : keyframe.getProperties()) {
                     applyPropertyToGame(property, keyframe);
                 }
@@ -226,12 +219,11 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
             // Clicked on timeline but not on any keyframe
             if (button == 0) { // Left click
                 setCursorPosition(time);
-                gui.getMod().setSelectedKeyframe(null);
+                gui.getMod().setSelected(null, 0);
             } else if (button == 1) { // Right click
                 if (pathKeyframePair.getLeft() != null) {
                     // Apply the value of the clicked path at the clicked position
-                    Timeline timeline = gui.getMod().getCurrentTimeline();
+                    Path path = gui.getMod().getCurrentTimeline().getPath(pathKeyframePair.getLeft());
-                    Path path = timeline.getPaths().get(pathKeyframePair.getLeft());
                     path.getKeyframes().stream().flatMap(k -> k.getProperties().stream()).distinct().forEach(
                             p -> applyPropertyToGame(p, path, time));
                 }
@@ -280,12 +272,13 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
             }
         }
         if (actuallyDragging) {
+            if (!gui.ensureEntityTracker(() -> mouseDrag(position, button, timeSinceLastCall))) return true;
             // Threshold passed
-            Path path = gui.getMod().getCurrentTimeline().getPaths().get(lastClickedPath);
+            SPTimeline timeline = gui.getMod().getCurrentTimeline();
             Point mouse = new Point(position);
             getContainer().convertFor(this, mouse);
             int mouseX = mouse.getX();
-            int width = size.getWidth();
+            int width = getLastSize().getWidth();
             int bodyWidth = width - BORDER_LEFT - BORDER_RIGHT;
             double segmentLength = getLength() * getZoom();
             double segmentTime =  segmentLength * (mouseX - BORDER_LEFT) / bodyWidth;
@@ -295,24 +288,21 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
             }
 
             // If there already is a keyframe at the target time, then increase the time by one until there is none
-            while (path.getKeyframe(newTime) != null) {
+            while (timeline.getKeyframe(lastClickedPath, newTime) != null) {
                 newTime++;
             }
 
             // First undo any previous changes
             if (draggingChange != null) {
-                draggingChange.undo(gui.getMod().getCurrentTimeline());
+                draggingChange.undo(timeline.getTimeline());
             }
 
             // Move keyframe to new position and
             // store change for later undoing / pushing to history
-            draggingChange = gui.moveKeyframe(path, lastClickedKeyframe, newTime);
+            draggingChange = timeline.moveKeyframe(lastClickedPath, lastClickedKeyframe, newTime);
 
             // Selected keyframe has been replaced
-            gui.getMod().setSelectedKeyframe(path.getKeyframe(newTime));
+            gui.getMod().setSelected(lastClickedPath, newTime);
-
-            // Path has been changed
-            path.updateAll();
         }
         return true;
     }
@@ -321,7 +311,7 @@ public class GuiKeyframeTimeline extends AbstractGuiTimeline<GuiKeyframeTimeline
     public boolean mouseRelease(ReadablePoint position, int button) {
         if (dragging) {
             if (actuallyDragging) {
-                gui.getMod().getCurrentTimeline().pushChange(draggingChange);
+                gui.getMod().getCurrentTimeline().getTimeline().pushChange(draggingChange);
                 draggingChange = null;
                 actuallyDragging = false;
             }

src/main/java/com/replaymod/simplepathing/gui/GuiPathing.java

@@ -1,10 +1,12 @@
 package com.replaymod.simplepathing.gui;
 
+import com.google.common.base.Preconditions;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.SettableFuture;
 import com.replaymod.core.ReplayMod;
+import com.replaymod.core.utils.Utils;
 import com.replaymod.pathing.gui.GuiKeyframeRepository;
 import com.replaymod.pathing.player.RealtimeTimelinePlayer;
 import com.replaymod.pathing.properties.CameraProperties;
@@ -14,24 +16,26 @@ import com.replaymod.render.gui.GuiRenderSettings;
 import com.replaymod.replay.ReplayHandler;
 import com.replaymod.replay.camera.CameraEntity;
 import com.replaymod.replay.gui.overlay.GuiReplayOverlay;
-import com.replaymod.replaystudio.pathing.change.*;
-import com.replaymod.replaystudio.pathing.interpolation.CubicSplineInterpolator;
-import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
-import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
 import com.replaymod.replaystudio.pathing.path.Keyframe;
 import com.replaymod.replaystudio.pathing.path.Path;
-import com.replaymod.replaystudio.pathing.path.PathSegment;
 import com.replaymod.replaystudio.pathing.path.Timeline;
-import com.replaymod.replaystudio.pathing.property.Property;
+import com.replaymod.replaystudio.pathing.serialize.TimelineSerialization;
 import com.replaymod.replaystudio.util.EntityPositionTracker;
-import com.replaymod.replaystudio.util.Location;
 import com.replaymod.simplepathing.ReplayModSimplePathing;
-import com.replaymod.simplepathing.Setting;
+import com.replaymod.simplepathing.SPTimeline;
+import com.replaymod.simplepathing.SPTimeline.SPPath;
 import de.johni0702.minecraft.gui.GuiRenderer;
 import de.johni0702.minecraft.gui.RenderInfo;
 import de.johni0702.minecraft.gui.container.GuiContainer;
 import de.johni0702.minecraft.gui.container.GuiPanel;
-import de.johni0702.minecraft.gui.element.*;
+import de.johni0702.minecraft.gui.element.AbstractGuiClickable;
+import de.johni0702.minecraft.gui.element.AbstractGuiElement;
+import de.johni0702.minecraft.gui.element.GuiElement;
+import de.johni0702.minecraft.gui.element.GuiHorizontalScrollbar;
+import de.johni0702.minecraft.gui.element.GuiLabel;
+import de.johni0702.minecraft.gui.element.GuiTexturedButton;
+import de.johni0702.minecraft.gui.element.GuiTooltip;
+import de.johni0702.minecraft.gui.element.IGuiClickable;
 import de.johni0702.minecraft.gui.element.advanced.GuiProgressBar;
 import de.johni0702.minecraft.gui.element.advanced.GuiTimelineTime;
 import de.johni0702.minecraft.gui.layout.CustomLayout;
@@ -41,9 +45,8 @@ import de.johni0702.minecraft.gui.popup.AbstractGuiPopup;
 import de.johni0702.minecraft.gui.popup.GuiInfoPopup;
 import de.johni0702.minecraft.gui.popup.GuiYesNoPopup;
 import de.johni0702.minecraft.gui.utils.Colors;
-import net.minecraft.entity.Entity;
+import net.minecraft.crash.CrashReport;
 import net.minecraftforge.fml.common.Loader;
-import org.apache.commons.lang3.tuple.Triple;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.lwjgl.input.Keyboard;
@@ -55,19 +58,17 @@ import org.lwjgl.util.WritablePoint;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.io.IOException;
-import java.util.ArrayList;
+import java.util.Collections;
-import java.util.List;
-import java.util.Optional;
 import java.util.function.Consumer;
 
+import static com.replaymod.core.utils.Utils.error;
+import static com.replaymod.simplepathing.ReplayModSimplePathing.LOGGER;
+
 
 /**
  * Gui plug-in to the GuiReplayOverlay for simple pathing.
  */
 public class GuiPathing {
-    public static final int TIME_PATH = 0;
-    public static final int POSITION_PATH = 1;
-
     private static final Logger logger = LogManager.getLogger();
 
     public final GuiTexturedButton playPauseButton = new GuiTexturedButton() {
@@ -91,7 +92,20 @@ public class GuiPathing {
         @Override
         public void run() {
             if (!preparePathsForPlayback()) return;
-            new GuiRenderSettings(replayHandler, mod.getCurrentTimeline()).display();
+
+            // Clone the timeline passed to the settings gui as it may be stored for later rendering in a queue
+            SPTimeline spTimeline = mod.getCurrentTimeline();
+            Timeline timeline;
+            try {
+                TimelineSerialization serialization = new TimelineSerialization(spTimeline, null);
+                String serialized = serialization.serialize(Collections.singletonMap("", spTimeline.getTimeline()));
+                timeline = serialization.deserialize(serialized).get("");
+            } catch (Throwable t) {
+                error(LOGGER, replayHandler.getOverlay(), CrashReport.makeCrashReport(t, "Cloning timeline"), () -> {});
+                return;
+            }
+
+            new GuiRenderSettings(replayHandler, timeline).display();
         }
     }).setSize(20, 20).setTexture(ReplayMod.TEXTURE, ReplayMod.TEXTURE_SIZE).setTexturePosH(40, 0)
             .setTooltip(new GuiTooltip().setI18nText("replaymod.gui.ingame.menu.renderpath"));
@@ -243,6 +257,7 @@ public class GuiPathing {
         }
     };
 
+    private final ReplayMod core;
     private final ReplayModSimplePathing mod;
     private final ReplayHandler replayHandler;
     private final RealtimeTimelinePlayer player;
@@ -252,6 +267,7 @@ public class GuiPathing {
     private SettableFuture<Void> entityTrackerFuture;
 
     public GuiPathing(final ReplayMod core, final ReplayModSimplePathing mod, final ReplayHandler replayHandler) {
+        this.core = core;
         this.mod = mod;
         this.replayHandler = replayHandler;
         this.player = new RealtimeTimelinePlayer(replayHandler);
@@ -278,27 +294,34 @@ public class GuiPathing {
                 if (player.isActive()) {
                     player.getFuture().cancel(false);
                 } else {
-                    Timeline timeline = mod.getCurrentTimeline();
+                    Path timePath = mod.getCurrentTimeline().getTimePath();
-                    Path timePath = timeline.getPaths().get(TIME_PATH);
 
                     if (!preparePathsForPlayback()) return;
 
                     timePath.setActive(!Keyboard.isKeyDown(Keyboard.KEY_LSHIFT));
                     // Start from cursor time unless the control key is pressed (then start from beginning)
                     int startTime = Keyboard.isKeyDown(Keyboard.KEY_LCONTROL)? 0 : GuiPathing.this.timeline.getCursorPosition();
-                    ListenableFuture<Void> future = player.start(timeline, startTime);
+                    ListenableFuture<Void> future = player.start(mod.getCurrentTimeline().getTimeline(), startTime);
                     overlay.setCloseable(false);
                     overlay.setMouseVisible(true);
+                    core.printInfoToChat("replaymod.chat.pathstarted");
                     Futures.addCallback(future, new FutureCallback<Void>() {
                         @Override
                         public void onSuccess(@Nullable Void result) {
+                            if (future.isCancelled()) {
+                                core.printInfoToChat("replaymod.chat.pathinterrupted");
+                            } else {
+                                core.printInfoToChat("replaymod.chat.pathfinished");
+                            }
                             overlay.setCloseable(true);
+                            timePath.setActive(true);
                         }
 
                         @Override
                         public void onFailure(Throwable t) {
                             t.printStackTrace();
                             overlay.setCloseable(true);
+                            timePath.setActive(true);
                         }
                     });
                 }
@@ -308,26 +331,28 @@ public class GuiPathing {
         positionKeyframeButton.setTexturePosH(new ReadablePoint() {
             @Override
             public int getX() {
-                Keyframe keyframe = mod.getSelectedKeyframe();
+                SPPath keyframePath = mod.getSelectedPath();
-                if (keyframe == null || !keyframe.getValue(CameraProperties.POSITION).isPresent()) {
+                long keyframeTime = mod.getSelectedTime();
+                if (keyframePath != SPPath.POSITION) {
                     // No keyframe or wrong path
-                    keyframe = mod.getCurrentTimeline().getPaths().get(POSITION_PATH).getKeyframe(timeline.getCursorPosition());
+                    keyframeTime = timeline.getCursorPosition();
+                    keyframePath = mod.getCurrentTimeline().isPositionKeyframe(keyframeTime) ? SPPath.POSITION : null;
                 }
-                if (keyframe == null) {
+                if (keyframePath != SPPath.POSITION) {
                     return replayHandler.isCameraView() ? 0 : 40;
                 } else {
-                    return keyframe.getValue(SpectatorProperty.PROPERTY).isPresent() ? 40 : 0;
+                    return mod.getCurrentTimeline().isSpectatorKeyframe(keyframeTime) ? 40 : 0;
                 }
             }
 
             @Override
             public int getY() {
-                Keyframe keyframe = mod.getSelectedKeyframe();
+                SPPath keyframePath = mod.getSelectedPath();
-                if (keyframe == null || !keyframe.getValue(CameraProperties.POSITION).isPresent()) {
+                if (keyframePath != SPPath.POSITION) {
                     // No keyframe selected but there might be one at exactly the position of the cursor
-                    keyframe = mod.getCurrentTimeline().getPaths().get(POSITION_PATH).getKeyframe(timeline.getCursorPosition());
+                    keyframePath = mod.getCurrentTimeline().isPositionKeyframe(timeline.getCursorPosition()) ? SPPath.POSITION : null;
                 }
-                return keyframe != null && keyframe.getValue(CameraProperties.POSITION).isPresent() ? 60 : 40;
+                return keyframePath == SPPath.POSITION ? 60 : 40;
             }
 
             @Override
@@ -337,7 +362,7 @@ public class GuiPathing {
         }).onClick(new Runnable() {
             @Override
             public void run() {
-                updateKeyframe(false);
+                updateKeyframe(SPPath.POSITION);
             }
         });
 
@@ -349,12 +374,12 @@ public class GuiPathing {
 
             @Override
             public int getY() {
-                Keyframe keyframe = mod.getSelectedKeyframe();
+                SPPath keyframePath = mod.getSelectedPath();
-                if (keyframe == null || !keyframe.getValue(TimestampProperty.PROPERTY).isPresent()) {
+                if (keyframePath != SPPath.TIME) {
                     // No keyframe selected but there might be one at exactly the position of the cursor
-                    keyframe = mod.getCurrentTimeline().getPaths().get(TIME_PATH).getKeyframe(timeline.getCursorPosition());
+                    keyframePath = mod.getCurrentTimeline().isTimeKeyframe(timeline.getCursorPosition()) ? SPPath.TIME : null;
                 }
-                return keyframe != null && keyframe.getValue(TimestampProperty.PROPERTY).isPresent() ? 100 : 80;
+                return keyframePath == SPPath.TIME ? 100 : 80;
             }
 
             @Override
@@ -364,7 +389,7 @@ public class GuiPathing {
         }).onClick(new Runnable() {
             @Override
             public void run() {
-                updateKeyframe(true);
+                updateKeyframe(SPPath.TIME);
             }
         });
 
@@ -378,94 +403,90 @@ public class GuiPathing {
             }
         });
 
-        core.getKeyBindingRegistry().registerKeyBinding("replaymod.input.keyframerepository", Keyboard.KEY_X, new Runnable() {
+        startLoadingEntityTracker();
-            @Override
+    }
-            public void run() {
-                if (!overlay.isVisible()) {
-                    return;
-                }
-                try {
-                    GuiKeyframeRepository gui = new GuiKeyframeRepository(
-                            mod, replayHandler.getReplayFile(), mod.getCurrentTimeline());
-                    Futures.addCallback(gui.getFuture(), new FutureCallback<Timeline>() {
-                        @Override
-                        public void onSuccess(Timeline result) {
-                            if (result != null) {
-                                mod.setCurrentTimeline(result);
-                            }
-                        }
 
-                        @Override
+    public void keyframeRepoButtonPressed() {
-                        public void onFailure(Throwable t) {
+        try {
-                            t.printStackTrace();
+            GuiKeyframeRepository gui = new GuiKeyframeRepository(
-                            core.printWarningToChat("Error loading timeline: " + t.getMessage());
+                    mod.getCurrentTimeline(), replayHandler.getReplayFile(), mod.getCurrentTimeline().getTimeline());
-                        }
+            Futures.addCallback(gui.getFuture(), new FutureCallback<Timeline>() {
-                    });
-                    gui.display();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                    core.printWarningToChat("Error loading timeline: " + e.getMessage());
-                }
-            }
-        });
-
-        core.getKeyBindingRegistry().registerKeyBinding("replaymod.input.clearkeyframes", Keyboard.KEY_C, () -> {
-            GuiYesNoPopup popup = GuiYesNoPopup.open(overlay,
-                    new GuiLabel().setI18nText("replaymod.gui.clearcallback.title").setColor(Colors.BLACK)
-            ).setYesI18nLabel("gui.yes").setNoI18nLabel("gui.no");
-            Futures.addCallback(popup.getFuture(), new FutureCallback<Boolean>() {
                 @Override
-                public void onSuccess(Boolean delete) {
+                public void onSuccess(Timeline result) {
-                    if (delete) {
+                    if (result != null) {
-                        Timeline timeline = mod.createTimeline();
+                        mod.setCurrentTimeline(new SPTimeline(result));
-                        timeline.createPath();
-                        timeline.createPath();
-                        mod.setCurrentTimeline(timeline);
                     }
                 }
 
                 @Override
                 public void onFailure(Throwable t) {
                     t.printStackTrace();
+                    core.printWarningToChat("Error loading timeline: " + t.getMessage());
                 }
             });
-        });
+            gui.display();
+        } catch (IOException e) {
+            e.printStackTrace();
+            core.printWarningToChat("Error loading timeline: " + e.getMessage());
+        }
+    }
 
-        core.getKeyBindingRegistry().registerRepeatedKeyBinding("replaymod.input.synctimeline", Keyboard.KEY_V, () -> {
+    public void clearKeyframesButtonPressed() {
-            // Current replay time
+        GuiYesNoPopup popup = GuiYesNoPopup.open(replayHandler.getOverlay(),
-            int time = replayHandler.getReplaySender().currentTimeStamp();
+                new GuiLabel().setI18nText("replaymod.gui.clearcallback.title").setColor(Colors.BLACK)
-            // Position of the cursor
+        ).setYesI18nLabel("gui.yes").setNoI18nLabel("gui.no");
-            int cursor = timeline.getCursorPosition();
+        Futures.addCallback(popup.getFuture(), new FutureCallback<Boolean>() {
-            // Get the last time keyframe before the cursor
+            @Override
-            mod.getCurrentTimeline().getPaths().get(TIME_PATH).getKeyframes().stream()
+            public void onSuccess(Boolean delete) {
-                    .filter(it -> it.getTime() <= cursor).reduce((__, last) -> last).ifPresent(keyframe -> {
+                if (delete) {
-                // Cursor position at the keyframe
+                    mod.clearCurrentTimeline();
-                int keyframeCursor = (int) keyframe.getTime();
+                    if (entityTracker != null) {
-                // Replay time at the keyframe
+                        mod.getCurrentTimeline().setEntityTracker(entityTracker);
-                // This is a keyframe from the time path, so it _should_ always have a time property
+                    }
-                int keyframeTime = keyframe.getValue(TimestampProperty.PROPERTY).get();
+                }
-                // Replay time passed
-                int timePassed = time - keyframeTime;
-                // Speed (set to 1 when shift is held)
-                double speed = Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) ? 1 : overlay.getSpeedSliderValue();
-                // Cursor time passed
-                int cursorPassed = (int) (timePassed / speed);
-                // Move cursor to new position
-                timeline.setCursorPosition(keyframeCursor + cursorPassed);
-                // Deselect keyframe to allow the user to add a new one right away
-                mod.setSelectedKeyframe(null);
-            });
-        });
-
-        core.getKeyBindingRegistry().registerRaw(Keyboard.KEY_DELETE, () -> {
-            if (!overlay.isVisible()) {
-                return;
             }
-            if (mod.getSelectedKeyframe() != null) {
+
-                updateKeyframe(mod.getSelectedKeyframe().getValue(TimestampProperty.PROPERTY).isPresent());
+            @Override
+            public void onFailure(Throwable t) {
+                t.printStackTrace();
             }
         });
+    }
 
+    public void syncTimeButtonPressed() {
+        // Current replay time
+        int time = replayHandler.getReplaySender().currentTimeStamp();
+        // Position of the cursor
+        int cursor = timeline.getCursorPosition();
+        // Get the last time keyframe before the cursor
+        mod.getCurrentTimeline().getTimePath().getKeyframes().stream()
+                .filter(it -> it.getTime() <= cursor).reduce((__, last) -> last).ifPresent(keyframe -> {
+            // Cursor position at the keyframe
+            int keyframeCursor = (int) keyframe.getTime();
+            // Replay time at the keyframe
+            // This is a keyframe from the time path, so it _should_ always have a time property
+            int keyframeTime = keyframe.getValue(TimestampProperty.PROPERTY).get();
+            // Replay time passed
+            int timePassed = time - keyframeTime;
+            // Speed (set to 1 when shift is held)
+            double speed = Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) ? 1 : replayHandler.getOverlay().getSpeedSliderValue();
+            // Cursor time passed
+            int cursorPassed = (int) (timePassed / speed);
+            // Move cursor to new position
+            timeline.setCursorPosition(keyframeCursor + cursorPassed);
+            // Deselect keyframe to allow the user to add a new one right away
+            mod.setSelected(null, 0);
+        });
+    }
+
+    public void deleteButtonPressed() {
+        if (mod.getSelectedPath() != null) {
+            updateKeyframe(mod.getSelectedPath());
+        }
+    }
+
+    private void startLoadingEntityTracker() {
+        Preconditions.checkState(entityTrackerFuture == null);
         // Start loading entity tracker
         entityTrackerFuture = SettableFuture.create();
         new Thread(() -> {
@@ -478,12 +499,13 @@ public class GuiPathing {
                     }
                 });
                 logger.info("Loaded entity tracker in " + (System.currentTimeMillis() - start) + "ms");
-            } catch (IOException e) {
+            } catch (Throwable e) {
                 logger.error("Loading entity tracker:", e);
                 mod.getCore().runLater(() -> {
                     mod.getCore().printWarningToChat("Error loading entity tracker: %s", e.getLocalizedMessage());
                     entityTrackerFuture.setException(e);
                 });
+                return;
             }
             entityTracker = tracker;
             mod.getCore().runLater(() -> {
@@ -493,13 +515,12 @@ public class GuiPathing {
     }
 
     private boolean preparePathsForPlayback() {
-        Timeline timeline = mod.getCurrentTimeline();
+        SPTimeline timeline = mod.getCurrentTimeline();
-        timeline.getPaths().get(TIME_PATH).updateAll();
+        timeline.getTimeline().getPaths().forEach(Path::updateAll);
-        timeline.getPaths().get(POSITION_PATH).updateAll();
 
         // Make sure time keyframes's values are monotonically increasing
         int lastTime = 0;
-        for (Keyframe keyframe : timeline.getPaths().get(TIME_PATH).getKeyframes()) {
+        for (Keyframe keyframe : timeline.getTimePath().getKeyframes()) {
             int time = keyframe.getValue(TimestampProperty.PROPERTY).orElseThrow(IllegalStateException::new);
             if (time < lastTime) {
                 // We are going backwards in time
@@ -512,6 +533,13 @@ public class GuiPathing {
             lastTime = time;
         }
 
+        // Make sure there are at least two position- and two time-keyframes
+        if (timeline.getPositionPath().getSegments().isEmpty()
+                || timeline.getTimePath().getSegments().isEmpty()) {
+            GuiInfoPopup.open(replayHandler.getOverlay(), "replaymod.chat.morekeyframes");
+            return false;
+        }
+
         return true;
     }
 
@@ -519,204 +547,85 @@ public class GuiPathing {
         scrollbar.setZoom(scrollbar.getZoom() * factor);
     }
 
-    /**
+    public boolean ensureEntityTracker(Runnable withDelayedTracker) {
-     * Called when either one of the property buttons is pressed.
-     * @param isTime {@code true} for the time property button, {@code false} for the place property button
-     */
-    private void updateKeyframe(final boolean isTime) {
         if (entityTracker == null) {
+            LOGGER.debug("Entity tracker not yet loaded, delaying...");
             LoadEntityTrackerPopup popup = new LoadEntityTrackerPopup(replayHandler.getOverlay());
             entityTrackerLoadingProgress = p -> popup.progressBar.setProgress(p.floatValue());
             Futures.addCallback(entityTrackerFuture, new FutureCallback<Void>() {
                 @Override
                 public void onSuccess(@Nullable Void result) {
                     popup.close();
-                    updateKeyframe(isTime);
+                    if (mod.getCurrentTimeline().getEntityTracker() == null) {
+                        mod.getCurrentTimeline().setEntityTracker(entityTracker);
+                    }
+                    withDelayedTracker.run();
                 }
 
                 @Override
                 public void onFailure(@Nonnull Throwable t) {
-                    popup.close();
+                    String message = "Failed to load entity tracker, pathing will be unavailable.";
+                    GuiReplayOverlay overlay = replayHandler.getOverlay();
+                    Utils.error(LOGGER, overlay, CrashReport.makeCrashReport(t, message), popup::close);
                 }
             });
-            return;
+            return false;
         }
+        if (mod.getCurrentTimeline().getEntityTracker() == null) {
+            mod.getCurrentTimeline().setEntityTracker(entityTracker);
+        }
+        return true;
+    }
+
+    /**
+     * Called when either one of the property buttons is pressed.
+     * @param path {@code TIME} for the time property button, {@code POSITION} for the place property button
+     */
+    private void updateKeyframe(SPPath path) {
+        LOGGER.debug("Updating keyframe on path {}" + path);
+        if (!ensureEntityTracker(() -> updateKeyframe(path))) return;
 
         int time = timeline.getCursorPosition();
-        Timeline timeline = mod.getCurrentTimeline();
+        SPTimeline timeline = mod.getCurrentTimeline();
-        Path path = timeline.getPaths().get(isTime ? TIME_PATH : POSITION_PATH);
 
-        Keyframe keyframe = mod.getSelectedKeyframe();
+        switch (path) {
-        if (keyframe != null && keyframe.getValue(TimestampProperty.PROPERTY).isPresent() ^ isTime) {
+            case TIME:
-            // Keyframe is on the wrong timeline
+                if (mod.getSelectedPath() == path) {
-            keyframe = null;
+                    LOGGER.debug("Selected keyframe is time keyframe -> removing keyframe");
-        }
+                    timeline.removeTimeKeyframe(mod.getSelectedTime());
-        if (keyframe == null) {
+                    mod.setSelected(null, 0);
-            // No keyframe selected but there may still be one at this exact time
+                } else if (timeline.isTimeKeyframe(time)) {
-            keyframe = path.getKeyframe(time);
+                    LOGGER.debug("Keyframe at cursor position is time keyframe -> removing keyframe");
-        }
+                    timeline.removeTimeKeyframe(time);
-        Change change;
+                    mod.setSelected(null, 0);
-        if (keyframe == null) {
+                } else {
-            change = AddKeyframe.create(path, time);
+                    LOGGER.debug("No time keyframe found -> adding new keyframe");
-            change.apply(timeline);
+                    timeline.addTimeKeyframe(time, replayHandler.getReplaySender().currentTimeStamp());
-            keyframe = path.getKeyframe(time);
+                    mod.setSelected(path, time);
-        } else {
-            change = RemoveKeyframe.create(path, keyframe);
-            change.apply(timeline);
-            keyframe = null;
-        }
-
-        if (keyframe != null) {
-            UpdateKeyframeProperties.Builder builder = UpdateKeyframeProperties.create(path, keyframe);
-            if (isTime) {
-                builder.setValue(TimestampProperty.PROPERTY, replayHandler.getReplaySender().currentTimeStamp());
-            } else {
-                CameraEntity camera = replayHandler.getCameraEntity();
-                builder.setValue(CameraProperties.POSITION, Triple.of(camera.posX, camera.posY, camera.posZ));
-                builder.setValue(CameraProperties.ROTATION, Triple.of(camera.rotationYaw, camera.rotationPitch, camera.roll));
-                if (!replayHandler.isCameraView()) {
-                    Entity spectated = replayHandler.getOverlay().getMinecraft().getRenderViewEntity();
-                    builder.setValue(SpectatorProperty.PROPERTY, spectated.getEntityId());
                 }
-            }
+                break;
-            UpdateKeyframeProperties updateChange = builder.done();
+            case POSITION:
-            updateChange.apply(timeline);
+                if (mod.getSelectedPath() == path) {
-            change = CombinedChange.createFromApplied(change, updateChange);
+                    LOGGER.debug("Selected keyframe is position keyframe -> removing keyframe");
-
+                    timeline.removePositionKeyframe(mod.getSelectedTime());
-            // If this new keyframe formed the first segment of the time path
+                    mod.setSelected(null, 0);
-            if (isTime && path.getSegments().size() == 1) {
+                } else if (timeline.isPositionKeyframe(time)) {
-                PathSegment segment = path.getSegments().iterator().next();
+                    LOGGER.debug("Keyframe at cursor position is position keyframe -> removing keyframe");
-                Interpolator interpolator = new LinearInterpolator();
+                    timeline.removePositionKeyframe(time);
-                interpolator.registerProperty(TimestampProperty.PROPERTY);
+                    mod.setSelected(null, 0);
-                SetInterpolator setInterpolator = SetInterpolator.create(segment, interpolator);
+                } else {
-                setInterpolator.apply(timeline);
+                    LOGGER.debug("No position keyframe found -> adding new keyframe");
-                change = CombinedChange.createFromApplied(change, setInterpolator);
+                    CameraEntity camera = replayHandler.getCameraEntity();
-            }
+                    int spectatedId = -1;
-        }
+                    if (!replayHandler.isCameraView()) {
-
+                        spectatedId = replayHandler.getOverlay().getMinecraft().getRenderViewEntity().getEntityId();
-        // Update interpolators for spectator keyframes
+                    }
-        // while this is overkill, it is far simpler than updating differently for every possible case
+                    timeline.addPositionKeyframe(time, camera.posX, camera.posY, camera.posZ,
-        if (!isTime) {
+                            camera.rotationYaw, camera.rotationPitch, camera.roll, spectatedId);
-            Change interpolators = updateInterpolators();
+                    mod.setSelected(path, time);
-            interpolators.apply(timeline);
-            change = CombinedChange.createFromApplied(change, interpolators);
-        }
-
-        Change specPosUpdate = updateSpectatorPositions();
-        specPosUpdate.apply(timeline);
-        change = CombinedChange.createFromApplied(change, specPosUpdate);
-
-        timeline.pushChange(change);
-
-        mod.setSelectedKeyframe(keyframe);
-    }
-
-    public Change updateInterpolators() {
-        boolean linearInterpolation = mod.getCore().getSettingsRegistry().get(Setting.LINEAR_INTERPOLATION);
-        List<Change> changes = new ArrayList<>();
-        Interpolator interpolator = null;
-        boolean isSpectatorInterpolator = false;
-        for (PathSegment segment : mod.getCurrentTimeline().getPaths().get(POSITION_PATH).getSegments()) {
-            if (segment.getStartKeyframe().getValue(SpectatorProperty.PROPERTY).isPresent()
-                    && segment.getEndKeyframe().getValue(SpectatorProperty.PROPERTY).isPresent()) {
-                // Spectator segment
-                if (!isSpectatorInterpolator) {
-                    isSpectatorInterpolator = true;
-                    interpolator = new LinearInterpolator();
-                    interpolator.registerProperty(SpectatorProperty.PROPERTY);
                 }
-                changes.add(SetInterpolator.create(segment, interpolator));
+                break;
-            } else {
-                // Normal segment
-                if (isSpectatorInterpolator || interpolator == null) {
-                    isSpectatorInterpolator = false;
-                    interpolator = linearInterpolation ? new LinearInterpolator() : new CubicSplineInterpolator();
-                    interpolator.registerProperty(CameraProperties.POSITION);
-                    interpolator.registerProperty(CameraProperties.ROTATION);
-                }
-                changes.add(SetInterpolator.create(segment, interpolator));
-            }
         }
-        return CombinedChange.create(changes.toArray(new Change[changes.size()]));
-    }
-
-    public Change updateSpectatorPositions() {
-        List<Change> changes = new ArrayList<>();
-        Path positionPath = mod.getCurrentTimeline().getPaths().get(POSITION_PATH);
-        Path timePath = mod.getCurrentTimeline().getPaths().get(TIME_PATH);
-        timePath.updateAll();
-        for (Keyframe keyframe : positionPath.getKeyframes()) {
-            Optional<Integer> spectator = keyframe.getValue(SpectatorProperty.PROPERTY);
-            if (spectator.isPresent()) {
-                Optional<Integer> time = timePath.getValue(TimestampProperty.PROPERTY, keyframe.getTime());
-                if (!time.isPresent()) {
-                    continue; // No time keyframes set at this video time, cannot determine replay time
-                }
-                Location expected = entityTracker.getEntityPositionAtTimestamp(spectator.get(), time.get());
-                if (expected == null) {
-                    continue; // We don't have any data on this entity for some reason
-                }
-                Triple<Double, Double, Double> pos = keyframe.getValue(CameraProperties.POSITION).orElse(Triple.of(0D, 0D, 0D));
-                Triple<Float, Float, Float> rot = keyframe.getValue(CameraProperties.ROTATION).orElse(Triple.of(0F, 0F, 0F));
-                Location actual = new Location(pos.getLeft(), pos.getMiddle(), pos.getRight(), rot.getLeft(), rot.getRight());
-                if (!expected.equals(actual)) {
-                    changes.add(UpdateKeyframeProperties.create(positionPath, keyframe)
-                            .setValue(CameraProperties.POSITION, Triple.of(expected.getX(), expected.getY(), expected.getZ()))
-                            .setValue(CameraProperties.ROTATION, Triple.of(expected.getYaw(), expected.getPitch(), 0f)).done()
-                    );
-                }
-            }
-        }
-        return CombinedChange.create(changes.toArray(new Change[changes.size()]));
-    }
-
-    public Change moveKeyframe(Path path, Keyframe keyframe, long newTime) {
-        Timeline timeline = mod.getCurrentTimeline();
-        // Interpolator might be required later (only if path is the time path)
-        Optional<Interpolator> interpolator =
-                path.getSegments().stream().findFirst().map(PathSegment::getInterpolator);
-
-        // First remove the old keyframe
-        Change removeChange = RemoveKeyframe.create(path, keyframe);
-        removeChange.apply(timeline);
-
-        // and add a new one at the correct time
-        Change addChange = AddKeyframe.create(path, newTime);
-        addChange.apply(timeline);
-        path.getKeyframe(newTime);
-
-        // Then copy over all properties
-        UpdateKeyframeProperties.Builder builder = UpdateKeyframeProperties.create(path, path.getKeyframe(newTime));
-        for (Property property : keyframe.getProperties()) {
-            copyProperty(property, keyframe, builder);
-        }
-        Change propertyChange = builder.done();
-        propertyChange.apply(timeline);
-
-        // Finally set the interpolators
-        Change interpolatorChange;
-        if (path.getTimeline().getPaths().indexOf(path) == GuiPathing.POSITION_PATH) {
-            // Position / Spectator keyframes need special handling
-            interpolatorChange = updateInterpolators();
-        } else {
-            // Time keyframes only need updating when only one segment of them exists
-            if (path.getSegments().size() == 1) {
-                interpolatorChange = SetInterpolator.create(path.getSegments().iterator().next(), interpolator.get());
-            } else {
-                interpolatorChange = CombinedChange.create(); // Noop change
-            }
-        }
-        interpolatorChange.apply(timeline);
-        // and update spectator positions
-        Change spectatorChange = updateSpectatorPositions();
-        spectatorChange.apply(timeline);
-
-        return CombinedChange.createFromApplied(removeChange, addChange, propertyChange, interpolatorChange, spectatorChange);
-    }
-
-    // Helper method because generics cannot be defined on blocks
-    private <T> void copyProperty(Property<T> property, Keyframe from, UpdateKeyframeProperties.Builder to) {
-        from.getValue(property).ifPresent(value -> to.setValue(property, value));
     }
 
     public ReplayModSimplePathing getMod() {
@@ -727,13 +636,15 @@ public class GuiPathing {
         return entityTracker;
     }
 
-    public void openEditKeyframePopup(Path path, Keyframe keyframe) {
+    public void openEditKeyframePopup(SPPath path, long time) {
+        if (!ensureEntityTracker(() -> openEditKeyframePopup(path, time))) return;
+        Keyframe keyframe = mod.getCurrentTimeline().getKeyframe(path, time);
         if (keyframe.getProperties().contains(SpectatorProperty.PROPERTY)) {
-            new GuiEditKeyframe.Spectator(this, path, keyframe).open();
+            new GuiEditKeyframe.Spectator(this, path, keyframe.getTime()).open();
         } else if (keyframe.getProperties().contains(CameraProperties.POSITION)) {
-            new GuiEditKeyframe.Position(this, path, keyframe).open();
+            new GuiEditKeyframe.Position(this, path, keyframe.getTime()).open();
         } else {
-            new GuiEditKeyframe.Time(this, path, keyframe).open();
+            new GuiEditKeyframe.Time(this, path, keyframe.getTime()).open();
         }
     }
 

src/main/java/com/replaymod/simplepathing/preview/PathPreviewRenderer.java

@@ -9,10 +9,10 @@ import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
 import com.replaymod.replaystudio.pathing.path.Keyframe;
 import com.replaymod.replaystudio.pathing.path.Path;
 import com.replaymod.replaystudio.pathing.path.PathSegment;
-import com.replaymod.replaystudio.pathing.path.Timeline;
 import com.replaymod.replaystudio.util.EntityPositionTracker;
 import com.replaymod.replaystudio.util.Location;
 import com.replaymod.simplepathing.ReplayModSimplePathing;
+import com.replaymod.simplepathing.SPTimeline;
 import com.replaymod.simplepathing.gui.GuiPathing;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.GlStateManager;
@@ -67,11 +67,11 @@ public class PathPreviewRenderer {
         if (guiPathing == null) return;
         EntityPositionTracker entityTracker = guiPathing.getEntityTracker();
 
-        Timeline timeline = mod.getCurrentTimeline();
+        SPTimeline timeline = mod.getCurrentTimeline();
         if (timeline == null) return;
-        Path path = timeline.getPaths().get(GuiPathing.POSITION_PATH);
+        Path path = timeline.getPositionPath();
         if (path.getKeyframes().isEmpty()) return;
-        Path timePath = timeline.getPaths().get(GuiPathing.TIME_PATH);
+        Path timePath = timeline.getTimePath();
 
         path.update();
 
@@ -96,8 +96,8 @@ public class PathPreviewRenderer {
                 if (spectator && entityTracker == null) {
                     continue; // Cannot render spectator positions when entity tracker is not yet loaded
                 }
-                // Spectator segments have 20 lines per second whereas normal segments have a fixed 100
+                // Spectator segments have 20 lines per second (at least 10) whereas normal segments have a fixed 100
-                long steps = spectator ? diff / 50 : 100;
+                long steps = spectator ? Math.max(diff / 50, 10) : 100;
                 Triple<Double, Double, Double> prevPos = null;
                 for (int i = 0; i <= steps; i++) {
                     long time = start.getTime() + diff * i / steps;
@@ -230,7 +230,7 @@ public class PathPreviewRenderer {
         float posY = 0f;
         float size = 10f / ReplayMod.TEXTURE_SIZE;
 
-        if (keyframe == mod.getSelectedKeyframe()) {
+        if (mod.isSelected(keyframe)) {
             posY += size;
         }
 

src/main/java/com/replaymod/simplepathing/properties/ExplicitInterpolationProperty.java

@@ -0,0 +1,44 @@
+package com.replaymod.simplepathing.properties;
+
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import com.replaymod.replaystudio.pathing.property.AbstractProperty;
+import com.replaymod.replaystudio.pathing.property.PropertyPart;
+import lombok.NonNull;
+import org.apache.commons.lang3.ObjectUtils;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Collections;
+
+/**
+ * Property indicating that the next path segment's interpolator is fixed
+ */
+public class ExplicitInterpolationProperty extends AbstractProperty<Object> {
+    public static final ExplicitInterpolationProperty PROPERTY = new ExplicitInterpolationProperty();
+
+    private ExplicitInterpolationProperty() {
+        super("interpolationFixed", "<internal>", null, new Object());
+    }
+
+    @Override
+    public Collection<PropertyPart<Object>> getParts() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public void applyToGame(Object value, @NonNull Object replayHandler) {
+        // dummy property, do nothing
+    }
+
+    @Override
+    public void toJson(JsonWriter writer, Object value) throws IOException {
+        writer.nullValue();
+    }
+
+    @Override
+    public Object fromJson(JsonReader reader) throws IOException {
+        reader.nextNull();
+        return ObjectUtils.NULL;
+    }
+}

src/main/resources/assets/replaymod/lang/en_US.lang

@@ -1,512 +0,0 @@
-replaymod.title=Replay Mod
-
-#Website API translations
-replaymod.api.parammissing=Required parameter missing: %1$s
-replaymod.api.invalidvalue=Invalid value passed for parameter %1$s - Possible values: %2$s
-replaymod.api.invalidlogin=Invalid login data provided
-replaymod.api.invalidauthkey=Invalid authentication key provided
-replaymod.api.notenoughspace=Not enough space left to upload this file. Consider purchasing Premium on ReplayMod.com
-replaymod.api.invalidfile=This file is invalid
-replaymod.api.fileduplicate=This file has already been uploaded
-replaymod.api.filenoexist=This file does not exist
-replaymod.api.nopermissions=You don't have permission to access this file
-replaymod.api.alreadyrated=You already rated this file
-replaymod.api.usernoexist=This user does not exist
-replaymod.api.invalidcategory=Invalid file category
-replaymod.api.nofilesuploaded=No files uploaded
-replaymod.api.toomanyvalues=Too many values passed for %1$s
-replaymod.api.noparameters=At least one parameter required. Parameters: %1$s
-replaymod.api.invalidfilename=File name must be between 5 and 30 characters long
-replaymod.api.unknownlang=This language has not been translated
-replaymod.api.zippingerror=An error occured while zipping the language files
-replaymod.api.usernameexists=This username is already taken
-replaymod.api.mailexists=This Email address is already linked to an account
-replaymod.api.invalidmail=Invalid Email Address
-replaymod.api.nopermissions=You don't have permission to do this
-replaymod.api.authfailed=Authentication to the Minecraft Session Servers failed
-replaymod.api.mcuserexists=A ReplayMod account is already associated with this Minecraft account
-replaymod.api.filetoobig=The uploaded file is too big
-replaymod.api.usernametoolong=The username is too long
-replaymod.api.descriptiontoolong=The description is too long
-replaymod.api.passwordlength=The password has to be between 5 and 1024 characters long
-replaymod.api.suspended=Your account has been suspended
-
-#All of the chat messages
-replaymod.chat.recordingstarted=Recording started
-replaymod.chat.recordingfailed=Failed to start recording
-
-replaymod.chat.savingthumb=Saving Thumbnail...
-replaymod.chat.savedthumb=Thumbnail has been successfully saved
-replaymod.chat.failedthumb=Thumbnail could not be saved
-
-replaymod.chat.addedmarker=Event Marker has been added
-
-#Chat messages displayed in Replay Viewer
-replaymod.chat.morekeyframes=At least 2 position keyframes and 2 time keyframes required
-replaymod.chat.negativetime=Camera Paths can't play time backwards. Please consult your nearest time lord for assistance.
-replaymod.chat.pathstarted=Camera Path started
-replaymod.chat.pathfinished=Camera Path finished
-replaymod.chat.pathinterrupted=Camera Path canceled
-
-#Replay Categories
-replaymod.category=Category
-replaymod.category.survival=Survival
-replaymod.category.minigame=Minigame
-replaymod.category.build=Build
-replaymod.category.misc=Miscellaneous
-
-#Common GUI-related strings
-replaymod.gui.replay=Replay
-replaymod.gui.login=Login
-replaymod.gui.logout=Logout
-replaymod.gui.cancel=Cancel
-replaymod.gui.username=Username
-replaymod.gui.password=Password
-replaymod.gui.back=Back
-replaymod.gui.duration=Duration
-replaymod.gui.load=Load
-replaymod.gui.download=Download
-replaymod.gui.like=Like
-replaymod.gui.dislike=Dislike
-replaymod.gui.removelike=Remove Like
-replaymod.gui.removedislike=Remove Dislike
-replaymod.gui.save=Save
-replaymod.gui.upload=Upload
-replaymod.gui.rename=Rename
-replaymod.gui.remove=Remove
-replaymod.gui.add=Add
-replaymod.gui.start=Start
-replaymod.gui.end=End
-replaymod.gui.delete=Delete
-replaymod.gui.recording=Recording
-replaymod.gui.speed=Speed
-replaymod.gui.register=Register
-replaymod.gui.mail=Email Address
-replaymod.gui.loading=Loading
-replaymod.gui.pleasewait=Please wait
-replaymod.gui.render=Render
-replaymod.gui.iphidden=Server IP Hidden
-replaymod.gui.overwrite=Overwrite
-replaymod.gui.saveas=Save as ...
-replaymod.gui.done=Done
-replaymod.gui.close=Close
-replaymod.gui.notagain=Don't show again
-
-replaymod.gui.renderdonetitle=Video rendered
-replaymod.gui.openfolder=Open Video Folder
-replaymod.gui.youtubeupload=Upload to YouTube
-replaymod.gui.renderdone1=Your video was successfully rendered.
-replaymod.gui.renderdone2=How would you like to proceed?
-replaymod.gui.videotitle=Title
-replaymod.gui.videodescription=Description
-replaymod.gui.videotags=Tags,Tags,Tags
-replaymod.gui.videothumbnail=Video Thumbnail
-replaymod.gui.videovisibility.private=Private
-replaymod.gui.videovisibility.unlisted=Unlisted
-replaymod.gui.videovisibility.public=Public
-replaymod.gui.ytuploadprogress.auth=[1/4] Authorization
-replaymod.gui.ytuploadprogress.prepare_video=[2/4] Preparing video: %%d%%%%
-replaymod.gui.ytuploadprogress.upload=[3/4] Uploading: %%d%%%%
-replaymod.gui.ytuploadprogress.cleanup=[4/4] Cleanup
-replaymod.gui.ytuploadprogress.done=Done: %s
-replaymod.gui.titleempty=Title cannot be empty
-replaymod.gui.videothumbnailtoolarge=Thumbnail size exceeds 2MB
-replaymod.gui.videothumbnailformat=Thumbnail has to be either JPEG or PNG format
-
-replaymod.gui.original=Original
-replaymod.gui.modified=Modified
-
-replaymod.gui.outdated=There is a newer Replay Mod version available. Please download it from replaymod.com
-
-replaymod.gui.hours=h
-replaymod.gui.minutes=min
-replaymod.gui.seconds=sec
-replaymod.gui.milliseconds=ms
-
-replaymod.gui.pitch=Pitch
-replaymod.gui.yaw=Yaw
-replaymod.gui.roll=Roll
-
-replaymod.gui.camera=Camera
-replaymod.gui.position=Position
-
-replaymod.gui.unknownerror=An unknown error occured
-
-replaymod.gui.exit=Exit Replay
-replaymod.gui.java=Java 1.7 or newer required
-replaymod.gui.morereplays=At least one Replay required
-
-replaymod.gui.loggedin=LOGGED IN
-replaymod.gui.loggedout=LOGGED OUT
-
-replaymod.gui.mainmenu=Main Menu
-replaymod.gui.settings=Settings
-
-replaymod.gui.keyframerepo.delete=Are you sure you want to delete these keyframes?
-
-replaymod.gui.restorereplay1=It seems like Minecraft has not quit normally.
-replaymod.gui.restorereplay2=The Replay "%1$s" was not saved correctly.
-replaymod.gui.restorereplay3=Do you wish to recover it?
-
-replaymod.gui.loadentitytracker=Loading entity positions: %%d%%%%
-
-#Only change these if it's neccessary
-replaymod.gui.replayviewer=Replay Viewer
-replaymod.gui.replaycenter=Replay Center
-replaymod.gui.replaysettings=Replay Settings
-replaymod.gui.replayeditor=Replay Editor
-
-#Login GUI
-replaymod.gui.login.title=Login to ReplayMod.com
-replaymod.gui.login.logging=Logging in...
-replaymod.gui.login.incorrect=Incorrect username or password
-replaymod.gui.login.connectionerror=Could not connect to ReplayMod.com
-
-replaymod.gui.login.skip=Skip
-
-replaymod.gui.register.title=Register on ReplayMod.com
-replaymod.gui.register.confirmpw=Confirm Password
-
-replaymod.gui.register.disclaimer=By registering an account, you agree to the Replay Mod's Terms of Service: https://replaymod.com/legal/terms
-
-replaymod.gui.register.error.nomatch=Passwords don't match
-replaymod.gui.register.error.shortusername=Username has to be at least 5 characters long
-replaymod.gui.register.error.invalidname=Username may only contain letters and numbers
-replaymod.gui.register.error.shortpw=Password has to be at least 5 characters long
-replaymod.gui.register.error.longpw=Password has to be at most 1024 characters long
-replaymod.gui.register.error.authfailed=Could not authenticate your Minecraft account
-
-#Replay Viewer GUI
-replaymod.gui.viewer.rename.title=Rename Replay
-replaymod.gui.viewer.rename.name=Replay Name
-replaymod.gui.viewer.replayfolder=Open Replay Folder...
-replaymod.gui.viewer.noauth=Log in to upload a Replay
-replaymod.gui.viewer.alreadyuploaded=This Replay has already been uploaded
-
-replaymod.gui.viewer.delete.linea=Are you sure you want to delete this replay?
-replaymod.gui.viewer.delete.failed1=Your OS did not allow us to move the replay. There is
-replaymod.gui.viewer.delete.failed2=nothing we can do about this. You have to do it yourself.
-replaymod.gui.viewer.delete.lineb='%1$s' will be lost forever! (a long time!)
-
-replaymod.gui.viewer.download.title=Downloading Replay File...
-replaymod.gui.viewer.download.message=Please wait while "%1$s" is being downloaded.
-
-replaymod.gui.viewer.chooser.title=Choose Replay File
-replaymod.gui.viewer.chooser.message=You have a modified version of "%1$s" on your computer. Which Replay do you want to load?
-
-replaymod.gui.login.noacc=Don't have an account yet?
-
-#Replay Center GUI
-replaymod.gui.center.logoutcallback=Do you really want to log out?
-replaymod.gui.center.top.recent=Recent
-replaymod.gui.center.top.best=Best
-replaymod.gui.center.top.downloaded=Downloaded
-replaymod.gui.center.top.favorited=Favorited
-replaymod.gui.center.top.search=Search
-
-replaymod.gui.center.search.filters=Search Filters
-replaymod.gui.center.search.gametype=Gametype
-replaymod.gui.center.search.order=Sort by
-replaymod.gui.center.search.order.best=Best
-replaymod.gui.center.search.order.recent=Recent
-replaymod.gui.center.search.name=Replay Name
-replaymod.gui.center.search.server=Server IP (Multiplayer only)
-replaymod.gui.center.search.category=Filter by Category
-replaymod.gui.center.search.version=Filter by Version
-
-replaymod.gui.center.downloadrequired=Download the Replay to rate or favorite it
-
-replaymod.gui.center.favorite=Favorite
-replaymod.gui.center.unfavorite=Unfavorite
-replaymod.gui.center.favorites=Favorites
-
-replaymod.gui.center.author=by %1$s%2$s
-
-#Upload GUI
-replaymod.gui.upload.title=Upload File
-replaymod.gui.upload.start=Start Upload
-replaymod.gui.upload.cancel=Cancel Upload
-replaymod.gui.upload.tagshint=Tags separated by comma
-replaymod.gui.upload.namehint=Replay Title
-replaymod.gui.upload.descriptionhint=Description
-replaymod.gui.upload.duration=Duration: %02dm%02ds
-replaymod.gui.upload.uploading=Uploading...
-replaymod.gui.upload.success=File has been successfully uploaded
-replaymod.gui.upload.canceled=Upload has been canceled
-replaymod.gui.upload.hideip2=Hide Server IP (%s)
-replaymod.gui.upload.nothumbnail=Missing Thumbnail. Please create a Thumbnail in the Replay using the %1$s key.
-replaymod.gui.upload.tryagain=Try again?
-
-replaymod.gui.upload.error.name.length=The Replay Name has to be between 5 and 30 characters long
-replaymod.gui.upload.error.name=The Replay Name may not contain special characters
-replaymod.gui.upload.error.tags=Tags may only contain letters and are separated using a comma
-
-#Replay Editor
-replaymod.gui.editor.replayfile=Replay File
-
-replaymod.gui.editor.savemode.override=Replace Source File
-replaymod.gui.editor.savemode.newfile=Save to new File
-
-replaymod.gui.editor.trim.title=Trim Replay
-replaymod.gui.editor.connect.title=Connect Replays
-replaymod.gui.editor.modify.title=Modify Replay
-
-replaymod.gui.editor.trim.description=Removes the beginning and end of a Replay File, only keeping the Replay between the given timestamps
-replaymod.gui.editor.connect.description=Connects multiple Replays in the specified order
-replaymod.gui.editor.modify.description=Provides several filters to modify Replay Files
-
-replaymod.gui.editor.progress.title=Editing Replay File...
-replaymod.gui.editor.progress.pleasewait=Please wait while the Replay is being edited.
-
-replaymod.gui.editor.progress.status.initializing=Initializing
-replaymod.gui.editor.progress.status.writing.raw=Rewriting Replay...
-replaymod.gui.editor.progress.status.writing.final=Writing File to disk...
-replaymod.gui.editor.progress.status.finished=Finished Editing!
-
-replaymod.gui.editor.disclaimer=The Replay Editor is an experimental feature and may contain bugs.
-
-#Cancel Replay GUI
-replaymod.gui.cancelrender.title=Cancel Rendering
-replaymod.gui.cancelrender.message=Are you sure that you want to cancel the current rendering process?
-#Saving Replay GUI
-replaymod.gui.replaysaving.title=Saving Replay File...
-replaymod.gui.replaysaving.message=Please wait while your recent Replay is being saved.
-replaymod.gui.replaymodified.message=Replay was modified. Would you like to save the changes?
-replaymod.gui.replaymodified.yes=Save Modified Replay
-replaymod.gui.replaymodified.no=Discard Changes
-replaymod.gui.replaymodified.warning1=A Replay named "%1$s" already exists.
-replaymod.gui.replaymodified.warning2=Are you sure you want to replace it?
-
-#Player Overview GUI
-replaymod.gui.playeroverview.visible=Visible
-replaymod.gui.playeroverview.hideall=Hide all
-replaymod.gui.playeroverview.showall=Show all
-replaymod.gui.playeroverview.spectate=Spectate Player
-replaymod.gui.playeroverview.remembersettings=Remember Hidden Players
-replaymod.gui.playeroverview.remembersettings.description=Saves Player Visibility in Replay File
-
-#Replay Mod Settings GUI
-replaymod.gui.settings.title=Replay Mod Settings
-
-replaymod.gui.settings.interpolation.linear=Linear
-replaymod.gui.settings.interpolation.cubic=Cubic
-
-replaymod.gui.settings.bitrate=Video Bitrate
-replaymod.gui.settings.framerate=Video Framerate
-replaymod.gui.settings.notifications=Enable Notifications
-replaymod.gui.settings.recordserver=Record Server
-replaymod.gui.settings.recordsingleplayer=Record Singleplayer
-replaymod.gui.settings.indicator=Recording Indicator
-replaymod.gui.settings.lighting=Ambient Lighting
-replaymod.gui.settings.forcechunks=Force Render Chunks
-replaymod.gui.settings.resources=Server Resource Packs
-replaymod.gui.settings.interpolation=Path Interpolation
-replaymod.gui.settings.linearinterpolation=Linear Path Interpolation
-replaymod.gui.settings.pathpreview=Show Path Preview
-replaymod.gui.settings.keyframecleancallback=Clear Confirmation
-replaymod.gui.settings.renderinvisible=Render invisible Entities
-replaymod.gui.settings.camera=Camera
-replaymod.gui.settings.showchat=Show Chat
-
-replaymod.gui.settings.warning.linea=WARNING: Recording settings will be
-replaymod.gui.settings.warning.lineb=applied the next time you join a world.
-
-#Replay Mod Keybindings
-replaymod.input.lighting=Toggle Lighting
-replaymod.input.thumbnail=Capture Thumbnail
-replaymod.input.playeroverview=Player Overview
-replaymod.input.clearkeyframes=Clear Keyframes
-replaymod.input.synctimeline=Synchronize Timeline
-replaymod.input.keyframerepository=Open Keyframe Presets
-replaymod.input.rollclockwise=Roll Clockwise
-replaymod.input.rollcounterclockwise=Roll Counterclockwise
-replaymod.input.resettilt=Reset Camera Tilt
-replaymod.input.playpause=Play/Pause Replay
-replaymod.input.marker=Add Event Marker
-replaymod.input.pathpreview=Toggle Path Preview
-replaymod.input.assetmanager=Asset Manager
-replaymod.input.objectmanager=Object Manager
-replaymod.input.interpolation=Toggle Interpolation
-replaymod.input.settings=ReplayMod Settings
-
-# CameraControllers
-replaymod.camera.classic=Classic
-replaymod.camera.vanilla=Vanilla-ish
-
-#Keyframe Presets GUI
-replaymod.gui.keyframerepository.title=Keyframe Repository
-replaymod.gui.keyframerepository.presets=Keyframe Presets
-replaymod.gui.keyframerepository.positionkeyframes=Position Keyframes
-replaymod.gui.keyframerepository.timekeyframes=Time Keyframes
-
-replaymod.gui.keyframerepository.savecurrent=Save current Path
-
-replaymod.gui.keyframerepository.noentries=No Presets available
-
-replaymod.gui.keyframerepository.preset.defaultname=New Keyframe Preset
-replaymod.gui.keyframerepository.duplicate=This Preset already exists
-
-#Edit Keyframe GUI
-replaymod.gui.editkeyframe.title.pos=Edit Position Keyframe
-replaymod.gui.editkeyframe.title.time=Edit Time Keyframe
-replaymod.gui.editkeyframe.title.marker=Edit Event Marker
-replaymod.gui.editkeyframe.title.spec=Edit Spectator Keyframe
-replaymod.gui.editkeyframe.xpos=X Position
-replaymod.gui.editkeyframe.ypos=Y Position
-replaymod.gui.editkeyframe.zpos=Z Position
-replaymod.gui.editkeyframe.campitch=Camera Pitch
-replaymod.gui.editkeyframe.camyaw=Camera Yaw
-replaymod.gui.editkeyframe.camroll=Camera Roll
-replaymod.gui.editkeyframe.timelineposition=Timeline Position
-replaymod.gui.editkeyframe.markername=Event Marker Name
-replaymod.gui.editkeyframe.timestamp=Time Index
-
-replaymod.gui.editkeyframe.spec.method=Spectating Method
-replaymod.gui.editkeyframe.spec.method.firstperson=First Person
-replaymod.gui.editkeyframe.spec.method.shoulder=Shoulder Camera
-
-replaymod.gui.editkeyframe.spec.method.shoulder.distance=Camera Distance
-replaymod.gui.editkeyframe.spec.method.shoulder.pitch=Pitch Offset
-replaymod.gui.editkeyframe.spec.method.shoulder.yaw=Rotation Angle
-replaymod.gui.editkeyframe.spec.method.shoulder.smoothness=Path Smoothness
-
-#Render Settings GUI
-replaymod.gui.rendersettings.title=Rendering Options
-replaymod.gui.rendersettings.renderer=Rendering Method
-
-replaymod.gui.rendersettings.renderer.default=Default Rendering
-replaymod.gui.rendersettings.renderer.tiled=Tiled Rendering
-replaymod.gui.rendersettings.renderer.stereoscopic=Stereoscopic Rendering
-replaymod.gui.rendersettings.renderer.cubic=Cubic Rendering
-replaymod.gui.rendersettings.renderer.equirectangular=Equirectangular Rendering
-replaymod.gui.rendersettings.renderer.ods=ODS Rendering
-
-replaymod.gui.rendersettings.renderer.default.description=Renders the video in the specified resolution. Fastest Rendering Option.
-replaymod.gui.rendersettings.renderer.stereoscopic.description=Renders the video as a stereoscopic (side-by-side) 3D movie, usable by different 3D technologies. The image for one eye is half the width of the video
-replaymod.gui.rendersettings.renderer.cubic.description=Renders the video with a 360 degree panoramic view, using Cubic Projection. This is usable by several 360 degree video players (and the Oculus Rift), for example VR Player.
-replaymod.gui.rendersettings.renderer.equirectangular.description=Renders the video with a 360 degree panoramic view, using Equirectangular Projection. This is usable by YouTube's new 360 degree video function, and several video players (and the Oculus Rift), for example VR Player.
-replaymod.gui.rendersettings.renderer.ods.description=Renders the video with a stereoscopic 3D 360 degree panoramic view, also called VR Video. This is usable by YouTube's new VR video function.
-
-replaymod.gui.rendersettings.customresolution=Video Resolution
-replaymod.gui.rendersettings.customresolution.warning.cubic=Cubic Rendering requires an aspect ratio of 4:3
-replaymod.gui.rendersettings.customresolution.warning.equirectangular=Equirectangular Rendering requires an aspect ratio of 2:1
-replaymod.gui.rendersettings.customresolution.warning.yuv420=For this preset, the width and height values need to be even numbers
-replaymod.gui.rendersettings.customresolution.warning.ods=ODS Rendering requires an aspect ratio of 1:1
-replaymod.gui.rendersettings.resolution=Video Resolution
-replaymod.gui.rendersettings.interpolation=Path Interpolation
-replaymod.gui.rendersettings.forcechunks=Force Render Chunks
-replaymod.gui.rendersettings.framerate=Video Framerate
-replaymod.gui.rendersettings.quality=Video Quality
-replaymod.gui.rendersettings.chromakey=Chroma Keying
-replaymod.gui.rendersettings.skycolor=Sky Color
-replaymod.gui.rendersettings.nametags=Render Name Tags
-replaymod.gui.rendersettings.outputfile=Output File
-replaymod.gui.rendersettings.360metadata=Inject 360° Metadata
-replaymod.gui.rendersettings.360metadata.error=360° Metadata can only be added to Equirectangular videos in MP4 format
-
-replaymod.gui.rendersettings.command=Command
-replaymod.gui.rendersettings.arguments=Command Line Arguments
-replaymod.gui.rendersettings.ffmpeg.description=If you are an advanced user, you can customize the command line parameters used to export the video. For more information, check http://replaymod.com/docs
-
-replaymod.gui.rendersettings.stabilizecamera=Stabilize Camera
-replaymod.gui.rendersettings.exportyoutube=Export for YouTube
-
-replaymod.gui.rendersettings.video=Video Settings
-replaymod.gui.rendersettings.advanced=Advanced Settings
-replaymod.gui.rendersettings.commandline=Command Line Settings
-
-replaymod.gui.rendersettings.presets=Encoding Presets
-replaymod.gui.rendersettings.presets.mp4.custom=MP4 - Custom Bitrate
-replaymod.gui.rendersettings.presets.mp4.high=MP4 - High Quality
-replaymod.gui.rendersettings.presets.mp4.default=MP4 - Default Quality
-replaymod.gui.rendersettings.presets.mp4.potato=MP4 - Potato Quality
-replaymod.gui.rendersettings.presets.webm.custom=WEBM - Custom Bitrate
-replaymod.gui.rendersettings.presets.mkv.lossless=MKV - Lossless
-replaymod.gui.rendersettings.presets.png=PNG Sequence
-
-#Rendering GUI
-replaymod.gui.rendering.title=Rendering Video
-replaymod.gui.rendering.pause=Pause Rendering
-replaymod.gui.rendering.resume=Resume Rendering
-replaymod.gui.rendering.cancel=Cancel Rendering
-replaymod.gui.rendering.cancel.callback=Are you sure?
-replaymod.gui.rendering.preview=Show Preview (Performance might suffer)
-replaymod.gui.rendering.progress=Frames rendered: %1$d / %2$d
-replaymod.gui.rendering.timetaken=Render Time
-replaymod.gui.rendering.timeleft=Time Left
-
-#Render Errors
-replaymod.gui.rendering.error.title=Rendering Failed
-replaymod.gui.rendering.error.optifine=Please uninstall Optifine before rendering.
-replaymod.gui.rendering.error.message=To render a video, you need to have ffmpeg installed. http://ffmpeg.org
-
-#Ingame Menu
-replaymod.gui.ingame.menu.addposkeyframe=Add Position Keyframe
-replaymod.gui.ingame.menu.removeposkeyframe=Remove Position Keyframe
-replaymod.gui.ingame.menu.addspeckeyframe=Add Spectator Keyframe
-replaymod.gui.ingame.menu.removespeckeyframe=Remove Spectator Keyframe
-replaymod.gui.ingame.menu.addtimekeyframe=Add Time Keyframe
-replaymod.gui.ingame.menu.removetimekeyframe=Remove Time Keyframe
-replaymod.gui.ingame.menu.pause=Pause Replay
-replaymod.gui.ingame.menu.unpause=Unpause Replay
-replaymod.gui.ingame.menu.renderpath=Render Camera Path
-replaymod.gui.ingame.menu.playpath=Play Camera Path from Cursor Position
-replaymod.gui.ingame.menu.playpathfromstart=Play Camera Path from Start
-replaymod.gui.ingame.menu.pausepath=Pause Camera Path
-replaymod.gui.ingame.menu.zoomin=Zoom in
-replaymod.gui.ingame.menu.zoomout=Zoom out
-
-replaymod.gui.ingame.unnamedmarker=Unnamed Event Marker
-
-#Clear Keyframe Callback
-replaymod.gui.clearcallback.title=Clear all Keyframes?
-replaymod.gui.clearcallback.message=This Callback can be disabled in the Replay Settings.
-
-#Asset Manager Gui
-replaymod.gui.assets.title=Asset Manager
-replaymod.gui.assets.filechooser=Asset File
-replaymod.gui.assets.defaultname=New Asset
-replaymod.gui.assets.emptylist=No Assets available
-replaymod.gui.assets.namehint=Asset Name
-replaymod.gui.assets.changefile=Change Asset File
-replaymod.gui.assets.noselection=No Asset selected
-
-#Object Manager Gui
-replaymod.gui.objects.properties.anchor=Anchor Point
-replaymod.gui.objects.properties.position=Position
-replaymod.gui.objects.properties.scale=Scale
-replaymod.gui.objects.properties.orientation=Orientation
-replaymod.gui.objects.properties.opacity=Opacity
-replaymod.gui.objects.properties.name=Object Name
-replaymod.gui.objects.empty=No Objects added
-replaymod.gui.objects.defaultname=New Object
-replaymod.gui.objects=Custom Objects
-
-#Errors
-replaymod.error.unknownrestriction1=This replay cannot be played with your current version.
-replaymod.error.unknownrestriction2=It tried to enforce %s which is unknown.
-replaymod.error.negativetime1=Some of your time keyframes are out of order.
-replaymod.error.negativetime2=Going backwards in time is not supported.
-replaymod.error.negativetime3=The invalid parts are marked in red.
-
-#Replay Mod Incompatibility Warning
-replaymod.gui.modwarning.title=Incompatibility detected
-replaymod.gui.modwarning.message1=A possible incompatibility between your current
-replaymod.gui.modwarning.message2=Minecraft version and this Replay has been detected.
-replaymod.gui.modwarning.message3=Loading this Replay may result in errors or a crash.
-replaymod.gui.modwarning.name=Mod Name:
-replaymod.gui.modwarning.id=Mod Id:
-replaymod.gui.modwarning.missing=Missing Mods
-replaymod.gui.modwarning.version=Different Mod Versions
-replaymod.gui.modwarning.version.expected=Expected
-replaymod.gui.modwarning.version.found=Found
-
-#OpenEye
-replaymod.gui.offeropeneye1=Do you want to install OpenEye?
-replaymod.gui.offeropeneye2=OpenEye is a mod that collects anonymous information
-replaymod.gui.offeropeneye3=about the mods being run and any crashes that happen.
-replaymod.gui.offeropeneye4=
-replaymod.gui.offeropeneye5=OpenEye can be disabled at any time and is completely optional.
-replaymod.gui.offeropeneye6=More information is available at https://openeye.openmods.info/faq
-replaymod.gui.offeropeneye7=Clicking Yes will download OpenEye and place it in your mods folder.
-replaymod.gui.offeropeneye8=It will then be active the next time you start Minecraft.

src/main/resources/dst_root_ca_x3.pem

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

src/main/resources/mcmod.info

@@ -100,6 +100,23 @@
     "screenshots": [],
     "dependencies": ["required-after:replaymod-replay"]
   },
+  {
+    "modid": "replaymod-editor",
+    "name": "Replay Mod - Replay Editor",
+    "description": "Replay Editor Module of the ReplayMod",
+    "version": "${version}",
+    "mcversion": "${mcversion}",
+    "url": "https://replaymod.com",
+    "updateUrl": "https://replaymod.com/download",
+    "authorList": [
+      "CrushedPixel",
+      "johni0702"
+    ],
+    "logoFile": "replaymod_logo.png",
+    "parent": "replaymod",
+    "screenshots": [],
+    "dependencies": []
+  },
   {
     "modid": "replaymod-extras",
     "name": "Replay Mod - Extras",

src/main/resources/mixins.compat.shaders.replaymod.json

@@ -6,7 +6,9 @@
   "client": [
     "MixinShaderEntityRenderer",
     "MixinShaderRenderChunk",
-    "MixinShaderRenderGlobal"
+    "MixinShaderRenderGlobal",
+    "MixinShadersRender"
   ],
+  "compatibilityLevel": "JAVA_8",
   "refmap": "mixins.replaymod.refmap.json"
 }

src/main/resources/mixins.recording.replaymod.json

@@ -9,5 +9,6 @@
     "MixinNetworkDispatcher",
     "MixinRenderGlobal"
   ],
+  "compatibilityLevel": "JAVA_8",
   "refmap": "mixins.replaymod.refmap.json"
 }

src/main/resources/mixins.render.replaymod.json

@@ -11,5 +11,6 @@
   ],
   "server": [],
   "client": [],
+  "compatibilityLevel": "JAVA_8",
   "refmap": "mixins.replaymod.refmap.json"
 }

src/main/resources/mixins.replay.replaymod.json

@@ -15,5 +15,6 @@
   ],
   "server": [],
   "client": [],
+  "compatibilityLevel": "JAVA_8",
   "refmap": "mixins.replaymod.refmap.json"
 }

src/test/java/com/replaymod/simplepathing/SPTimelineTest.java

@@ -0,0 +1,647 @@
+package com.replaymod.simplepathing;
+
+import com.google.common.collect.Iterables;
+import com.replaymod.pathing.properties.CameraProperties;
+import com.replaymod.pathing.properties.SpectatorProperty;
+import com.replaymod.pathing.properties.TimestampProperty;
+import com.replaymod.replaystudio.pathing.change.Change;
+import com.replaymod.replaystudio.pathing.interpolation.CatmullRomSplineInterpolator;
+import com.replaymod.replaystudio.pathing.interpolation.Interpolator;
+import com.replaymod.replaystudio.pathing.interpolation.LinearInterpolator;
+import com.replaymod.replaystudio.pathing.path.Keyframe;
+import com.replaymod.replaystudio.pathing.path.Path;
+import com.replaymod.replaystudio.pathing.path.PathSegment;
+import com.replaymod.replaystudio.pathing.path.Timeline;
+import com.replaymod.replaystudio.util.EntityPositionTracker;
+import com.replaymod.replaystudio.util.Location;
+import com.replaymod.simplepathing.SPTimeline.SPPath;
+import org.apache.commons.lang3.tuple.Triple;
+import org.apache.logging.log4j.LogManager;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.IdentityHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
+public class SPTimelineTest {
+    private SPTimeline impl;
+    private Timeline timeline;
+
+    @BeforeClass
+    public static void setupLogger() {
+        ReplayModSimplePathing.LOGGER = LogManager.getLogger();
+    }
+
+    @Before
+    public void setup() {
+        impl = new SPTimeline();
+        impl.setDefaultInterpolatorType(InterpolatorType.CUBIC);
+        impl.setEntityTracker(new EntityPositionTrackerMock());
+        timeline = impl.getTimeline();
+    }
+
+    @Test
+    public void testGetPath() {
+        assertSame(impl.getTimeline().getPaths().get(0), impl.getTimePath());
+        assertSame(impl.getTimeline().getPaths().get(0), impl.getPath(SPPath.TIME));
+        assertSame(impl.getTimeline().getPaths().get(1), impl.getPositionPath());
+        assertSame(impl.getTimeline().getPaths().get(1), impl.getPath(SPPath.POSITION));
+    }
+
+    @Test
+    public void testGetKeyframe() {
+        assertSame(timeline.getPaths().get(0).insert(123), impl.getKeyframe(SPPath.TIME, 123));
+        assertSame(timeline.getPaths().get(1).insert(456), impl.getKeyframe(SPPath.POSITION, 456));
+    }
+
+    @Test
+    public void testIsTimeKeyframe() {
+        impl.getTimePath().insert(123);
+        impl.getPositionPath().insert(456);
+        impl.getPositionPath().insert(42).setValue(SpectatorProperty.PROPERTY, 42);
+        assertTrue(impl.isTimeKeyframe(123));
+        assertFalse(impl.isTimeKeyframe(456));
+        assertFalse(impl.isTimeKeyframe(789));
+        assertFalse(impl.isTimeKeyframe(42));
+    }
+
+    @Test
+    public void testIsPositionKeyframe() {
+        impl.getTimePath().insert(123);
+        impl.getPositionPath().insert(456);
+        impl.getPositionPath().insert(42).setValue(SpectatorProperty.PROPERTY, 42);
+        assertFalse(impl.isPositionKeyframe(123));
+        assertTrue(impl.isPositionKeyframe(456));
+        assertFalse(impl.isPositionKeyframe(789));
+        assertTrue(impl.isSpectatorKeyframe(42));
+    }
+
+    @Test
+    public void testIsSpectatorKeyframe() {
+        impl.getTimePath().insert(123);
+        impl.getPositionPath().insert(456);
+        impl.getPositionPath().insert(42).setValue(SpectatorProperty.PROPERTY, 42);
+        assertFalse(impl.isSpectatorKeyframe(123));
+        assertFalse(impl.isSpectatorKeyframe(456));
+        assertFalse(impl.isSpectatorKeyframe(789));
+        assertTrue(impl.isSpectatorKeyframe(42));
+    }
+
+    @Test
+    public void testAddPositionKeyframe() {
+        assertNull(timeline.peekUndoStack());
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, -1);
+        assertNotNull(timeline.peekUndoStack());
+        Keyframe keyframe = impl.getKeyframe(SPPath.POSITION, 0);
+        assertNotNull(keyframe);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(1d, 2d, 3d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(4f, 5f, 6f)));
+        assertFalse(keyframe.getValue(SpectatorProperty.PROPERTY).isPresent());
+        timeline.undoLastChange();
+        assertNull(timeline.peekUndoStack());
+        assertNull(impl.getKeyframe(SPPath.POSITION, 0));
+    }
+
+    @Test
+    public void testAddPositionKeyframeSpectator() {
+        assertNull(timeline.peekUndoStack());
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, 7);
+        assertNotNull(timeline.peekUndoStack());
+        Keyframe keyframe = impl.getKeyframe(SPPath.POSITION, 0);
+        assertNotNull(keyframe);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(1d, 2d, 3d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(4f, 5f, 6f)));
+        assertEquals(keyframe.getValue(SpectatorProperty.PROPERTY), Optional.of(7));
+        timeline.undoLastChange();
+        assertNull(timeline.peekUndoStack());
+        assertNull(impl.getKeyframe(SPPath.POSITION, 0));
+    }
+
+    @Test
+    public void testPositionKeyframeSpectatorPosition() {
+        Keyframe keyframe;
+        impl.addTimeKeyframe(0, 0);
+        impl.addTimeKeyframe(9, 9);
+
+        impl.addPositionKeyframe(4, 1, 2, 3, 4, 5, 6, 1);
+        keyframe = impl.getKeyframe(SPPath.POSITION, 4);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(1d, 2d, 3d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(4f, 5f, 6f)));
+
+        impl.addPositionKeyframe(6, 1, 2, 3, 4, 5, 6, 42);
+        keyframe = impl.getKeyframe(SPPath.POSITION, 6);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(12d, 0d, 0d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(0f, 0f, 0f)));
+
+        impl.addPositionKeyframe(8, 1, 2, 3, 4, 5, 6, 42);
+        keyframe = impl.getKeyframe(SPPath.POSITION, 8);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(16d, 0d, 0d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(0f, 0f, 0f)));
+
+        impl.addPositionKeyframe(10, 1, 2, 3, 4, 5, 6, 42);
+        keyframe = impl.getKeyframe(SPPath.POSITION, 10);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(1d, 2d, 3d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(4f, 5f, 6f)));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testAddPositionKeyframeDuplicate() {
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, -1);
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, -1);
+    }
+
+    @Test
+    public void testUpdatePositionKeyframe() {
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, -1);
+        Change change = impl.updatePositionKeyframe(0, 7, 8, 9, 10, 11, 12);
+        assertNotNull(change);
+        Keyframe keyframe = impl.getKeyframe(SPPath.POSITION, 0);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(7d, 8d, 9d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(10f, 11f, 12f)));
+        assertFalse(keyframe.getValue(SpectatorProperty.PROPERTY).isPresent());
+        change.undo(timeline);
+        keyframe = impl.getKeyframe(SPPath.POSITION, 0);
+        assertEquals(keyframe.getValue(CameraProperties.POSITION), Optional.of(Triple.of(1d, 2d, 3d)));
+        assertEquals(keyframe.getValue(CameraProperties.ROTATION), Optional.of(Triple.of(4f, 5f, 6f)));
+        assertFalse(keyframe.getValue(SpectatorProperty.PROPERTY).isPresent());
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testUpdatePositionKeyframeNoKeyframe() {
+        impl.updatePositionKeyframe(0, 1, 2, 3, 4, 5, 6);
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testUpdatePositionKeyframeSpectatorKeyframe() {
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, 7);
+        impl.updatePositionKeyframe(0, 1, 2, 3, 4, 5, 6);
+    }
+
+    @Test
+    public void testRemovePositionKeyframe() {
+        impl.addPositionKeyframe(0, 1, 2, 3, 4, 5, 6, -1);
+        impl.removePositionKeyframe(0);
+        assertNull(impl.getKeyframe(SPPath.POSITION, 0));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testRemovePositionKeyframeNoKeyframe() {
+        impl.removePositionKeyframe(0);
+    }
+
+    @Test
+    public void testAddTimeKeyframe() {
+        assertNull(timeline.peekUndoStack());
+        impl.addTimeKeyframe(0, 1);
+        assertNotNull(timeline.peekUndoStack());
+        Keyframe keyframe = impl.getKeyframe(SPPath.TIME, 0);
+        assertNotNull(keyframe);
+        assertEquals(keyframe.getValue(TimestampProperty.PROPERTY), Optional.of(1));
+        timeline.undoLastChange();
+        assertNull(timeline.peekUndoStack());
+        assertNull(impl.getKeyframe(SPPath.TIME, 0));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testAddTimeKeyframeDuplicate() {
+        impl.addTimeKeyframe(0, 1);
+        impl.addTimeKeyframe(0, 1);
+    }
+
+    @Test
+    public void testUpdateTimeKeyframe() {
+        impl.addTimeKeyframe(0, 1);
+        Change change = impl.updateTimeKeyframe(0, 2);
+        assertNotNull(change);
+        assertEquals(impl.getKeyframe(SPPath.TIME, 0).getValue(TimestampProperty.PROPERTY), Optional.of(2));
+        change.undo(timeline);
+        assertEquals(impl.getKeyframe(SPPath.TIME, 0).getValue(TimestampProperty.PROPERTY), Optional.of(1));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testUpdateTimeKeyframeNoKeyframe() {
+        impl.updateTimeKeyframe(0, 1);
+    }
+
+    @Test
+    public void testRemoveTimeKeyframe() {
+        impl.addTimeKeyframe(0, 1);
+        impl.removeTimeKeyframe(0);
+        assertNull(impl.getKeyframe(SPPath.TIME, 0));
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testRemoveTimeKeyframeNoKeyframe() {
+        impl.removeTimeKeyframe(0);
+    }
+
+    /**
+     * Checks all interpolators to make sure that they are continuous and not fragmented.
+     */
+    private void assertValidInterpolators(SPPath path, int expectedNumberOfInterpolators) {
+        String str = prettyPrintInterpolators(impl, path);
+        List<Interpolator> interpolators = impl.getPath(path).getSegments().stream().map(PathSegment::getInterpolator)
+                .distinct().collect(Collectors.toList());
+        assertFalse("Not all interpolators set: " + str, interpolators.contains(null));
+        assertEquals("Mismatched interpolator number: " + str, expectedNumberOfInterpolators, interpolators.size());
+        int i = 0;
+        for (Interpolator interpolator : interpolators) {
+            Keyframe lastKeyframe = null;
+            for (PathSegment segment : interpolator.getSegments().stream()
+                    .sorted(Comparator.comparing(s -> s.getStartKeyframe().getTime())).collect(Collectors.toList())) {
+                String message = "Fragmentation in interpolator " + i + ": " + str;
+                assertTrue(message, lastKeyframe == null || segment.getStartKeyframe() == lastKeyframe);
+                lastKeyframe = segment.getEndKeyframe();
+            }
+            i++;
+        }
+    }
+
+    @Test
+    public void testAddPositionKeyframeAppend() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        addPosition(3, 1);
+        addPosition(4, 1);
+    }
+
+    @Test
+    public void testAddPositionKeyframePrepend() {
+        addPosition(4, 0);
+        addPosition(3, 1);
+        addPosition(2, 1);
+        addPosition(1, 1);
+        addPosition(0, 1);
+    }
+
+    @Test
+    public void testAddPositionKeyframeMixed() {
+        addPosition(2, 0);
+        addPosition(4, 1);
+        addPosition(3, 1);
+        addPosition(0, 1);
+        addPosition(1, 1);
+    }
+
+    @Test
+    public void testAddPositionSpectatorKeyframe() {
+        addPosition(0, 0);
+        addSpectator(1, 1);
+        addSpectator(2, 2);
+        addPosition(4, 3);
+        addPosition(7, 3);
+        addPosition(8, 3);
+        addSpectator(3, 3);
+        addSpectator(5, 3);
+        addSpectator(6, 5);
+    }
+
+    @Test
+    public void testRemovePositionKeyframeFromStart() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        addPosition(3, 1);
+        removePosition(0, 1);
+        removePosition(1, 1);
+        removePosition(2, 0);
+        removePosition(3, 0);
+    }
+
+    @Test
+    public void testRemovePositionKeyframeFromEnd() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        addPosition(3, 1);
+        removePosition(3, 1);
+        removePosition(2, 1);
+        removePosition(1, 0);
+        removePosition(0, 0);
+    }
+
+    @Test
+    public void testRemovePositionKeyframeFromMiddle() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        addPosition(3, 1);
+        removePosition(1, 1);
+        removePosition(2, 1);
+        removePosition(0, 0);
+        removePosition(3, 0);
+    }
+
+    @Test
+    public void testRemovePositionSpectatorKeyframe() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        addSpectator(3, 1);
+        addSpectator(4, 2);
+        addSpectator(5, 2);
+        addPosition(6, 3);
+        addPosition(7, 3);
+        addSpectator(8, 3);
+        addSpectator(9, 4);
+        removePosition(4, 4);
+        removePosition(9, 3);
+        removePosition(6, 3);
+        removePosition(7, 2);
+        removePosition(0, 2);
+        removePosition(1, 2);
+        removePosition(3, 2);
+        removePosition(2, 1);
+        removePosition(5, 0);
+        removePosition(8, 0);
+    }
+
+    @Test
+    public void testAddTimeKeyframeAppend() {
+        addTime(0, 0);
+        addTime(1, 1);
+        addTime(2, 1);
+        addTime(3, 1);
+        addTime(4, 1);
+    }
+
+    @Test
+    public void testAddTimeKeyframePrepend() {
+        addTime(4, 0);
+        addTime(3, 1);
+        addTime(2, 1);
+        addTime(1, 1);
+        addTime(0, 1);
+    }
+
+    @Test
+    public void testAddTimeKeyframeMixed() {
+        addTime(2, 0);
+        addTime(4, 1);
+        addTime(3, 1);
+        addTime(0, 1);
+        addTime(1, 1);
+    }
+
+    @Test
+    public void testRemoveTimeKeyframeFromStart() {
+        addTime(0, 0);
+        addTime(1, 1);
+        addTime(2, 1);
+        addTime(3, 1);
+        removeTime(0, 1);
+        removeTime(1, 1);
+        removeTime(2, 0);
+        removeTime(3, 0);
+    }
+
+    @Test
+    public void testRemoveTimeKeyframeFromEnd() {
+        addTime(0, 0);
+        addTime(1, 1);
+        addTime(2, 1);
+        addTime(3, 1);
+        removeTime(3, 1);
+        removeTime(2, 1);
+        removeTime(1, 0);
+        removeTime(0, 0);
+    }
+
+    @Test
+    public void testRemoveTimeKeyframeFromMiddle() {
+        addTime(0, 0);
+        addTime(1, 1);
+        addTime(2, 1);
+        addTime(3, 1);
+        removeTime(1, 1);
+        removeTime(2, 1);
+        removeTime(0, 0);
+        removeTime(3, 0);
+    }
+
+    @Test
+    public void testSetInterpolator() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        addPosition(2, 1);
+        setInterpolator(1, new LinearInterpolator(), 2);
+        assertIsLinear(1);
+        Interpolator interpolator = Iterables.get(impl.getPositionPath().getSegments(), 1).getInterpolator();
+        assertTrue(interpolator.getKeyframeProperties().contains(CameraProperties.POSITION));
+        assertTrue(interpolator.getKeyframeProperties().contains(CameraProperties.ROTATION));
+        addPosition(3, 3);
+        addPosition(4, 3);
+        addPosition(5, 3);
+        setInterpolator(3, new LinearInterpolator(), 5);
+        assertIsLinear(3);
+        removePosition(2, 3);
+        removePosition(3, 3);
+        removePosition(0, 2);
+        removePosition(1, 1);
+        removePosition(4, 0);
+        removePosition(5, 0);
+    }
+
+    private void assertIsLinear(int index) {
+        assertTrue("Expected segment " + index + " to have linear interpolator: " + prettyPrintInterpolators(impl, SPPath.POSITION),
+                Iterables.get(impl.getPositionPath().getSegments(), index).getInterpolator() instanceof LinearInterpolator);
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testSetInterpolatorNoKeyframe() {
+        addTime(0, 0);
+        impl.setInterpolator(0, new LinearInterpolator());
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testSetInterpolatorToDefaultNoKeyframe() {
+        addTime(0, 0);
+        impl.setInterpolatorToDefault(0);
+    }
+
+    @Test
+    public void testMoveKeyframeSimple() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        setInterpolator(0, new LinearInterpolator(), 1);
+        assertIsLinear(0);
+
+        impl.moveKeyframe(SPPath.POSITION, 0, 2);
+        assertValidInterpolators(SPPath.POSITION, 1);
+        assertIsLinear(0);
+        impl.moveKeyframe(SPPath.POSITION, 2, 0);
+        assertValidInterpolators(SPPath.POSITION, 1);
+        assertIsLinear(0);
+
+        addPosition(2, 1);
+        impl.moveKeyframe(SPPath.POSITION, 0, 3);
+        assertValidInterpolators(SPPath.POSITION, 1);
+        assertIsLinear(0);
+        assertIsLinear(1);
+    }
+
+    @Test
+    public void testMoveKeyframe() {
+        addPosition(1, 0);
+        addPosition(3, 1);
+        addPosition(5, 1);
+        addPosition(7, 1);
+        addSpectator(9, 1);
+        addSpectator(11, 2);
+        addSpectator(13, 2);
+        addPosition(15, 3);
+        addPosition(17, 3);
+        addPosition(19, 3);
+        setInterpolator(3, new LinearInterpolator(), 5);
+        assertIsLinear(1);
+        setInterpolator(5, new LinearInterpolator(), 5);
+        assertIsLinear(2);
+        // [P 1] C0 [P 3] L1 [P 5] L1 [P 7] C2 [S 9] L3 [S 11] L3 [S 13] C4 [P 15] C4 [P 17] C4 [P 19]
+
+        impl.moveKeyframe(SPPath.POSITION, 5, 0);
+        assertValidInterpolators(SPPath.POSITION, 6);
+        assertIsLinear(0);
+        impl.moveKeyframe(SPPath.POSITION, 0, 5);
+        assertValidInterpolators(SPPath.POSITION, 5);
+        assertIsLinear(2);
+
+        impl.moveKeyframe(SPPath.POSITION, 3, 12);
+        assertValidInterpolators(SPPath.POSITION, 7);
+        assertIsLinear(5);
+        impl.moveKeyframe(SPPath.POSITION, 12, 3);
+        assertValidInterpolators(SPPath.POSITION, 5);
+        assertIsLinear(1);
+
+        impl.moveKeyframe(SPPath.POSITION, 7, 14);
+        assertValidInterpolators(SPPath.POSITION, 4);
+        impl.moveKeyframe(SPPath.POSITION, 14, 20);
+        assertValidInterpolators(SPPath.POSITION, 4);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testSetDefaultInterpolatorDifferentType() {
+        addPosition(0, 0);
+        addPosition(1, 1);
+        impl.setDefaultInterpolator(new CatmullRomSplineInterpolator(42));
+    }
+
+    @Test
+    public void testSetDefaultInterpolatorSameType() {
+        impl.setDefaultInterpolatorType(InterpolatorType.CATMULL_ROM);
+        addPosition(0, 0);
+        addSpectator(1, 1);
+        addSpectator(2, 2);
+        addPosition(3, 3);
+        addPosition(4, 3);
+        impl.setDefaultInterpolator(new CatmullRomSplineInterpolator(42));
+        assertValidInterpolators(SPPath.POSITION, 3);
+        assertIsCatmullRom(0, 42);
+        assertIsCatmullRom(2, 42);
+        assertIsCatmullRom(3, 42);
+    }
+
+    private void assertIsCatmullRom(int index, double alpha) {
+        String str = prettyPrintInterpolators(impl, SPPath.POSITION);
+        Interpolator interpolator = Iterables.get(impl.getPositionPath().getSegments(), index).getInterpolator();
+        assertTrue("Expected segment " + index + " to be catmull rom interpolator: " + str,
+                 interpolator instanceof CatmullRomSplineInterpolator);
+        assertTrue("Expected interpolator of segment segment " + index + " to have alpha " + alpha + ": " + str,
+                ((CatmullRomSplineInterpolator) interpolator).getAlpha() == 42);
+    }
+
+    private void addPosition(int time, int expectedNumberOfInterpolators) {
+        impl.addPositionKeyframe(time, 1, 2, 3, 4, 5, 6, -1);
+        assertNotNull(impl.getKeyframe(SPPath.POSITION, time));
+        assertValidInterpolators(SPPath.POSITION, expectedNumberOfInterpolators);
+    }
+
+    private void addSpectator(int time, int expectedNumberOfInterpolators) {
+        impl.addPositionKeyframe(time, 1, 2, 3, 4, 5, 6, 42);
+        assertNotNull(impl.getKeyframe(SPPath.POSITION, time));
+        assertTrue(impl.isSpectatorKeyframe(time));
+        assertValidInterpolators(SPPath.POSITION, expectedNumberOfInterpolators);
+    }
+
+    private void addTime(int time, int expectedNumberOfInterpolators) {
+        impl.addTimeKeyframe(time, 1);
+        assertNotNull(impl.getKeyframe(SPPath.TIME, time));
+        assertValidInterpolators(SPPath.TIME, expectedNumberOfInterpolators);
+    }
+
+    private void removePosition(int time, int expectedNumberOfInterpolators) {
+        impl.removePositionKeyframe(time);
+        assertNull(impl.getKeyframe(SPPath.POSITION, time));
+        assertValidInterpolators(SPPath.POSITION, expectedNumberOfInterpolators);
+    }
+
+    private void removeTime(int time, int expectedNumberOfInterpolators) {
+        impl.removeTimeKeyframe(time);
+        assertNull(impl.getKeyframe(SPPath.TIME, time));
+        assertValidInterpolators(SPPath.TIME, expectedNumberOfInterpolators);
+    }
+
+    private void setInterpolator(int time, Interpolator interpolator, int expectedNumberOfInterpolators) {
+        impl.setInterpolator(time, interpolator);
+        assertValidInterpolators(SPPath.POSITION, expectedNumberOfInterpolators);
+    }
+
+    private void assertPositionState(String expected) {
+        assertEquals(expected, prettyPrintInterpolators(impl, SPPath.POSITION));
+    }
+
+    // Tracks only entity 42 which always is at x=time*2, y,z=0
+    private class EntityPositionTrackerMock extends EntityPositionTracker {
+        public EntityPositionTrackerMock() {
+            super(null);
+        }
+
+        @Override
+        public Location getEntityPositionAtTimestamp(int entityID, long timestamp) {
+            if (entityID == 42) {
+                return new Location(timestamp * 2, 0 ,0, 0, 0);
+            } else {
+                return null;
+            }
+        }
+    }
+
+    public static String prettyPrintInterpolators(SPTimeline timeline, SPPath spPath) {
+        return prettyPrintInterpolators(timeline, spPath, Collections.emptyMap());
+    }
+
+    public static String prettyPrintInterpolators(SPTimeline timeline, SPPath spPath, Map<PathSegment, Interpolator> updates) {
+        Map<Interpolator, String> interpolatorIdMap = new IdentityHashMap<>();
+        Path path = timeline.getPath(spPath);
+        StringBuilder sb = new StringBuilder();
+        for (Keyframe keyframe : path.getKeyframes()) {
+            if (spPath == SPPath.TIME) {
+                sb.append("[T ").append(keyframe.getTime()).append("]");
+            } else if (keyframe.getValue(SpectatorProperty.PROPERTY).isPresent()) {
+                sb.append("[S ").append(keyframe.getTime()).append("]");
+            } else {
+                sb.append("[P ").append(keyframe.getTime()).append("]");
+            }
+            path.getSegments().stream().filter(s -> s.getStartKeyframe() == keyframe).findFirst().ifPresent(segment -> {
+                Interpolator interpolator = updates.getOrDefault(segment, segment.getInterpolator());
+                String id = interpolatorIdMap.computeIfAbsent(interpolator, i ->
+                        (i instanceof LinearInterpolator ? "L" : "C") + interpolatorIdMap.size());
+                sb.append(' ').append(id).append(' ');
+            });
+        }
+        return sb.toString();
+    }
+}