[Compat] Fix camera entity with BetterSprinting prior to 2.0.0 (fixes #78)

src/main/java/com/replaymod/compat/bettersprinting/DisableBetterSprinting.java

@@ -0,0 +1,97 @@
+package com.replaymod.compat.bettersprinting;
+
+import com.replaymod.replay.ReplayModReplay;
+import com.replaymod.replay.events.ReplayChatMessageEvent;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.multiplayer.PlayerControllerMP;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.BlockPos;
+import net.minecraft.world.IWorldAccess;
+import net.minecraftforge.client.event.GuiOpenEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.Loader;
+import net.minecraftforge.fml.common.ModContainer;
+import net.minecraftforge.fml.common.eventhandler.EventPriority;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.versioning.DefaultArtifactVersion;
+import net.minecraftforge.fml.common.versioning.Restriction;
+import net.minecraftforge.fml.common.versioning.VersionRange;
+
+import java.util.Collections;
+
+/**
+ * Old Better Sprinting versions replace the vanilla player with their own, overridden instance (replacing the camera entity).
+ *
+ * See: https://github.com/chylex/Better-Sprinting/blob/1.8/src/main/java/chylex/bettersprinting/client/player/impl/LogicImplOverride.java
+ */
+public class DisableBetterSprinting {
+    private static final VersionRange OLD_VERSION = VersionRange.newRange(null,
+            Collections.singletonList(new Restriction(null, false, new DefaultArtifactVersion("2.0.0"), false)));
+    private static final String LOGIC_CLASS_NAME = "chylex.bettersprinting.client.player.impl.LogicImplOverride";
+    private static final String CONTROLLER_OVERRIDE_CLASS_NAME = LOGIC_CLASS_NAME + ".PlayerControllerMPOverride";
+
+    public static void register() {
+        Loader.instance().getModList().stream()
+                .filter(mod -> mod.getModId().equalsIgnoreCase("bettersprinting"))
+                .findFirst()
+                .map(ModContainer::getProcessedVersion).filter(OLD_VERSION::containsVersion)
+                .ifPresent($_ -> MinecraftForge.EVENT_BUS.register(new DisableBetterSprinting()));
+    }
+
+    private DisableBetterSprinting() {}
+
+    private final Minecraft mc = Minecraft.getMinecraft();
+    private PlayerControllerMP originalController;
+    private BetterSprintingWorldAccess worldAccessHook = new BetterSprintingWorldAccess();
+
+    @SubscribeEvent(priority = EventPriority.HIGH)
+    public void beforeGuiOpenEvent(GuiOpenEvent event) {
+        if (ReplayModReplay.instance.getReplayHandler() != null && mc.theWorld != null) {
+            // During replay, get ready to revert BetterSprinting's overwritten playerController
+            originalController = mc.playerController;
+            mc.theWorld.addWorldAccess(worldAccessHook);
+        }
+    }
+
+    @SubscribeEvent(priority = EventPriority.LOW)
+    public void afterGuiOpenEvent(GuiOpenEvent event) {
+        if (ReplayModReplay.instance.getReplayHandler() != null && mc.theWorld != null) {
+            mc.theWorld.removeWorldAccess(worldAccessHook);
+        }
+    }
+
+    @SubscribeEvent
+    public void onReplayChatMessage(ReplayChatMessageEvent event) {
+        // Suppress this message if it's the Better Sprinting warning message
+        for (StackTraceElement elem : Thread.currentThread().getStackTrace()) {
+            if (LOGIC_CLASS_NAME.equals(elem.getClassName())) {
+                event.setCanceled(true);
+                return;
+            }
+        }
+    }
+
+    private class BetterSprintingWorldAccess implements IWorldAccess {
+        @Override
+        public void onEntityRemoved(Entity entityIn) {
+            if (mc.playerController != null && mc.playerController.getClass().getName().equals(CONTROLLER_OVERRIDE_CLASS_NAME)) {
+                // Someone has secretly swapped out the player controller and is about to substitute their own player entity.
+                // This is the right time to destroy their plan.
+                mc.playerController = originalController;
+            }
+        }
+
+        @Override public void markBlockForUpdate(BlockPos pos) {}
+        @Override public void notifyLightSet(BlockPos pos) {}
+        @Override public void markBlockRangeForRenderUpdate(int x1, int y1, int z1, int x2, int y2, int z2) {}
+        @Override public void playSound(String soundName, double x, double y, double z, float volume, float pitch) {}
+        @Override public void playSoundToNearExcept(EntityPlayer except, String soundName, double x, double y, double z, float volume, float pitch) {}
+        @Override public void spawnParticle(int p_180442_1_, boolean p_180442_2_, double p_180442_3_, double p_180442_5_, double p_180442_7_, double p_180442_9_, double p_180442_11_, double p_180442_13_, int... p_180442_15_) {}
+        @Override public void onEntityAdded(Entity entityIn) {}
+        @Override public void playRecord(String recordName, BlockPos blockPosIn) {}
+        @Override public void broadcastSound(int p_180440_1_, BlockPos p_180440_2_, int p_180440_3_) {}
+        @Override public void playAusSFX(EntityPlayer p_180439_1_, int p_180439_2_, BlockPos blockPosIn, int p_180439_4_) {}
+        @Override public void sendBlockBreakProgress(int breakerId, BlockPos pos, int progress) {}
+    }
+}