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196 lines
11 KiB
Diff
196 lines
11 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: peaches94 <peachescu94@gmail.com>
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Date: Sun, 10 Jul 2022 13:29:20 -0500
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Subject: [PATCH] Petal: reduce work done by game event system
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Original license: GPL v3
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Original project: https://github.com/Bloom-host/Petal
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1. going into game event dispatching can be expensive so run the checks before dispatching
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2. EuclideanGameEventListenerRegistry is not used concurrently so we ban that usage for improved performance with allays
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java
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index 83481539e058e5f428d9951e409fed62ef159e5c..bf9a7c31d557e4521e20851c3569f42a8d224c97 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/SculkCatalystBlockEntity.java
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@@ -65,7 +65,7 @@ public class SculkCatalystBlockEntity extends BlockEntity implements GameEventLi
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return this.catalystListener;
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}
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- public static class CatalystListener implements GameEventListener {
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+ public class CatalystListener implements GameEventListener { // petal
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public static final int PULSE_TICKS = 8;
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final SculkSpreader sculkSpreader;
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@@ -135,6 +135,13 @@ public class SculkCatalystBlockEntity extends BlockEntity implements GameEventLi
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world.playSound((Player) null, pos, SoundEvents.SCULK_CATALYST_BLOOM, SoundSource.BLOCKS, 2.0F, 0.6F + random.nextFloat() * 0.4F);
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}
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+ // petal start
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+ @Override
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+ public boolean listensToEvent(GameEvent gameEvent, GameEvent.Context context) {
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+ return !SculkCatalystBlockEntity.this.isRemoved() && gameEvent == GameEvent.ENTITY_DIE && context.sourceEntity() instanceof LivingEntity;
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+ }
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+ // petal end
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+
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private void tryAwardItSpreadsAdvancement(Level world, LivingEntity deadEntity) {
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LivingEntity entityliving1 = deadEntity.getLastHurtByMob();
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diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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index 221a4a3fbeac621ec593c7ba44b83f4b247a5589..33dc213ab5968cbf46a5a670517c0612653e148e 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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@@ -80,7 +80,18 @@ public class LevelChunk extends ChunkAccess {
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private Supplier<FullChunkStatus> fullStatus;
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@Nullable
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private LevelChunk.PostLoadProcessor postLoad;
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- private final Int2ObjectMap<GameEventListenerRegistry> gameEventListenerRegistrySections;
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+ // petal start
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+ private final GameEventListenerRegistry[] gameEventListenerRegistrySections;
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+ private static final int GAME_EVENT_DISPATCHER_RADIUS = 2;
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+
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+ private static int getGameEventSectionIndex(int sectionIndex) {
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+ return sectionIndex + GAME_EVENT_DISPATCHER_RADIUS;
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+ }
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+
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+ private static int getGameEventSectionLength(int sectionCount) {
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+ return sectionCount + (GAME_EVENT_DISPATCHER_RADIUS * 2);
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+ }
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+ // petal end
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private final LevelChunkTicks<Block> blockTicks;
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private final LevelChunkTicks<Fluid> fluidTicks;
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public volatile FullChunkStatus chunkStatus = FullChunkStatus.INACCESSIBLE; // Paper - rewrite chunk system
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@@ -105,7 +116,7 @@ public class LevelChunk extends ChunkAccess {
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super(pos, upgradeData, world, net.minecraft.server.MinecraftServer.getServer().registryAccess().registryOrThrow(Registries.BIOME), inhabitedTime, sectionArrayInitializer, blendingData); // Paper - Anti-Xray - The world isn't ready yet, use server singleton for registry
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this.tickersInLevel = Maps.newHashMap();
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this.level = (ServerLevel) world; // CraftBukkit - type
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- this.gameEventListenerRegistrySections = new Int2ObjectOpenHashMap();
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+ this.gameEventListenerRegistrySections = new GameEventListenerRegistry[getGameEventSectionLength(this.getSectionsCount())]; // petal
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Heightmap.Types[] aheightmap_type = Heightmap.Types.values();
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int j = aheightmap_type.length;
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@@ -303,9 +314,23 @@ public class LevelChunk extends ChunkAccess {
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if (world instanceof ServerLevel) {
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ServerLevel worldserver = (ServerLevel) world;
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- return (GameEventListenerRegistry) this.gameEventListenerRegistrySections.computeIfAbsent(ySectionCoord, (j) -> {
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- return new EuclideanGameEventListenerRegistry(worldserver, ySectionCoord, this::removeGameEventListenerRegistry);
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- });
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+ // petal start
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+ int sectionIndex = getGameEventSectionIndex(this.getSectionIndexFromSectionY(ySectionCoord));
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+
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+ // drop game events that are too far away (32 blocks) from loaded sections
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+ // this matches the highest radius of game events in the game
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+ if (sectionIndex < 0 || sectionIndex >= this.gameEventListenerRegistrySections.length) {
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+ return GameEventListenerRegistry.NOOP;
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+ }
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+
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+ var dispatcher = this.gameEventListenerRegistrySections[sectionIndex];
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+
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+ if (dispatcher == null) {
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+ dispatcher = this.gameEventListenerRegistrySections[sectionIndex] = new EuclideanGameEventListenerRegistry(worldserver, ySectionCoord, this::removeGameEventListenerRegistry);
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+ }
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+
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+ return dispatcher;
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+ // petal end
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} else {
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return super.getListenerRegistry(ySectionCoord);
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}
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@@ -678,7 +703,7 @@ public class LevelChunk extends ChunkAccess {
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}
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private void removeGameEventListenerRegistry(int ySectionCoord) {
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- this.gameEventListenerRegistrySections.remove(ySectionCoord);
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+ this.gameEventListenerRegistrySections[getGameEventSectionIndex(this.getSectionIndexFromSectionY(ySectionCoord))] = null; // petal
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}
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private void removeBlockEntityTicker(BlockPos pos) {
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diff --git a/src/main/java/net/minecraft/world/level/gameevent/EuclideanGameEventListenerRegistry.java b/src/main/java/net/minecraft/world/level/gameevent/EuclideanGameEventListenerRegistry.java
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index f30b2e964acdf44014065bd491a577040e61a2c2..14c4de819ce5bd6440f96ea3e9e7df32d15a7f1e 100644
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--- a/src/main/java/net/minecraft/world/level/gameevent/EuclideanGameEventListenerRegistry.java
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+++ b/src/main/java/net/minecraft/world/level/gameevent/EuclideanGameEventListenerRegistry.java
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@@ -13,8 +13,8 @@ import net.minecraft.world.phys.Vec3;
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public class EuclideanGameEventListenerRegistry implements GameEventListenerRegistry {
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private final List<GameEventListener> listeners = Lists.newArrayList();
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- private final Set<GameEventListener> listenersToRemove = Sets.newHashSet();
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- private final List<GameEventListener> listenersToAdd = Lists.newArrayList();
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+ //private final Set<GameEventListener> listenersToRemove = Sets.newHashSet(); // petal - not necessary
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+ //private final List<GameEventListener> listenersToAdd = Lists.newArrayList(); // petal
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private boolean processing;
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private final ServerLevel level;
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private final int sectionY;
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@@ -34,7 +34,7 @@ public class EuclideanGameEventListenerRegistry implements GameEventListenerRegi
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@Override
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public void register(GameEventListener listener) {
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if (this.processing) {
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- this.listenersToAdd.add(listener);
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+ throw new java.util.ConcurrentModificationException(); // petal - disallow concurrent modification
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} else {
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this.listeners.add(listener);
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}
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@@ -45,7 +45,7 @@ public class EuclideanGameEventListenerRegistry implements GameEventListenerRegi
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@Override
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public void unregister(GameEventListener listener) {
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if (this.processing) {
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- this.listenersToRemove.add(listener);
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+ throw new java.util.ConcurrentModificationException(); // petal - disallow concurrent modification
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} else {
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this.listeners.remove(listener);
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}
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@@ -66,7 +66,7 @@ public class EuclideanGameEventListenerRegistry implements GameEventListenerRegi
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while(iterator.hasNext()) {
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GameEventListener gameEventListener = iterator.next();
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- if (this.listenersToRemove.remove(gameEventListener)) {
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+ if (false) { // petal - disallow concurrent modification
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iterator.remove();
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} else {
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Optional<Vec3> optional = getPostableListenerPosition(this.level, pos, gameEventListener);
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@@ -80,6 +80,8 @@ public class EuclideanGameEventListenerRegistry implements GameEventListenerRegi
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this.processing = false;
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}
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+ // petal start
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+ /*
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if (!this.listenersToAdd.isEmpty()) {
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this.listeners.addAll(this.listenersToAdd);
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this.listenersToAdd.clear();
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@@ -89,6 +91,8 @@ public class EuclideanGameEventListenerRegistry implements GameEventListenerRegi
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this.listeners.removeAll(this.listenersToRemove);
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this.listenersToRemove.clear();
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}
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+ */
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+ // petal end
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return bl;
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}
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diff --git a/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java b/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
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index 37ae0f928440af5b2fdfe68ad6c9c54e8c95c82c..7a63c186101c739344b59de874e31658938641a7 100644
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--- a/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
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+++ b/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
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@@ -44,6 +44,7 @@ public class GameEventDispatcher {
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int k1 = SectionPos.blockToSectionCoord(blockposition.getZ() + i);
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List<GameEvent.ListenerInfo> list = new ArrayList();
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GameEventListenerRegistry.ListenerVisitor gameeventlistenerregistry_a = (gameeventlistener, vec3d1) -> {
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+ if (!gameeventlistener.listensToEvent(event, emitter)) return; // petal - if they don't listen, ignore
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if (gameeventlistener.getDeliveryMode() == GameEventListener.DeliveryMode.BY_DISTANCE) {
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list.add(new GameEvent.ListenerInfo(event, emitterPos, emitter, gameeventlistener, vec3d1));
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} else {
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diff --git a/src/main/java/net/minecraft/world/level/gameevent/GameEventListener.java b/src/main/java/net/minecraft/world/level/gameevent/GameEventListener.java
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index a4148dd326b10b0eb2bc7884691d79dcda60e010..5859d7af9052a150f5d115bb0e2cbd102374f162 100644
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--- a/src/main/java/net/minecraft/world/level/gameevent/GameEventListener.java
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+++ b/src/main/java/net/minecraft/world/level/gameevent/GameEventListener.java
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@@ -22,4 +22,10 @@ public interface GameEventListener {
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public interface Holder<T extends GameEventListener> {
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T getListener();
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}
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+
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+ // petal start - add check for seeing if this listener cares about an event
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+ default boolean listensToEvent(GameEvent gameEvent, GameEvent.Context context) {
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+ return true;
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+ }
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+ // petal end
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}
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