Add buttons in SP/MP menu for quick en-/disabling of recording

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

@@ -3,6 +3,7 @@ package com.replaymod.recording;
 import com.replaymod.core.ReplayMod;
 import com.replaymod.core.utils.Restrictions;
 import com.replaymod.recording.handler.ConnectionEventHandler;
+import com.replaymod.recording.handler.GuiHandler;
 import com.replaymod.recording.packet.PacketListener;
 import io.netty.channel.ChannelDuplexHandler;
 import io.netty.channel.ChannelHandler;
@@ -57,6 +58,8 @@ public class ReplayModRecording {
         EventBus bus = FMLCommonHandler.instance().bus();
         bus.register(connectionEventHandler = new ConnectionEventHandler(logger, core));
 
+        new GuiHandler(core).register();
+
         NetworkRegistry.INSTANCE.newChannel(Restrictions.PLUGIN_CHANNEL, new RestrictionsChannelHandler());
     }
 

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

@@ -0,0 +1,52 @@
+package com.replaymod.recording.handler;
+
+import com.replaymod.core.ReplayMod;
+import com.replaymod.core.SettingsRegistry;
+import com.replaymod.recording.Setting;
+import de.johni0702.minecraft.gui.container.GuiScreen;
+import de.johni0702.minecraft.gui.container.VanillaGuiScreen;
+import de.johni0702.minecraft.gui.element.GuiCheckbox;
+import de.johni0702.minecraft.gui.layout.CustomLayout;
+import net.minecraft.client.gui.GuiMultiplayer;
+import net.minecraft.client.gui.GuiSelectWorld;
+import net.minecraftforge.client.event.GuiScreenEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+
+public class GuiHandler {
+
+    private final ReplayMod mod;
+
+    public GuiHandler(ReplayMod mod) {
+        this.mod = mod;
+    }
+
+    public void register() {
+        MinecraftForge.EVENT_BUS.register(this);
+    }
+
+    @SubscribeEvent
+    public void onGuiInit(GuiScreenEvent.InitGuiEvent.Post event) {
+        if (event.gui instanceof GuiSelectWorld || event.gui instanceof GuiMultiplayer) {
+            SettingsRegistry settingsRegistry = mod.getSettingsRegistry();
+            boolean sp = event.gui instanceof GuiSelectWorld;
+            Setting<Boolean> setting = sp ? Setting.RECORD_SINGLEPLAYER : Setting.RECORD_SERVER;
+
+            GuiCheckbox recordingCheckbox = new GuiCheckbox()
+                    .setI18nLabel("replaymod.gui.settings.record" + (sp ? "singleplayer" : "server"))
+                    .setChecked(settingsRegistry.get(setting));
+            recordingCheckbox.onClick(() -> {
+                settingsRegistry.set(setting, recordingCheckbox.isChecked());
+                settingsRegistry.save();
+            });
+
+            VanillaGuiScreen.setup(event.gui).setLayout(new CustomLayout<GuiScreen>() {
+                @Override
+                protected void layout(GuiScreen container, int width, int height) {
+                    //size(recordingCheckbox, 200, 20);
+                    pos(recordingCheckbox, width - width(recordingCheckbox) - 5, 5);
+                }
+            }).addElements(null, recordingCheckbox);
+        }
+    }
+}