From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic Date: Thu, 23 Nov 2023 10:33:25 -0800 Subject: [PATCH] Don't fire sync events during worldgen Fixes EntityPotionEffectEvent Fixes EntityPoseChangeEvent Asynchronous chunk generation provides an opportunity for things to happen async that previously fired synchronous-only events. This patch is for mitigating those issues by various methods. Also fixes correctly marking/clearing the entity generation flag. This patch sets the generation flag anytime an entity is created via StructureTemplate before loading from NBT to catch uses of the flag during the loading logic. This patch clears the generation flag from an entity when added to a ServerLevel for the situation where generation happened directly to a ServerLevel and the entity still has the flag set. diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java index 1bacbb0d0bd5198d0f946a959b2335d6fba0ca88..a628da8a0ed7ae2c7b46df3881bd75dc5b4fd607 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -1219,6 +1219,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe // CraftBukkit start private boolean addEntity(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) { org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot + entity.generation = false; // Paper - Don't fire sync event during generation; Reset flag if it was added during a ServerLevel generation process // Paper start - extra debug info if (entity.valid) { MinecraftServer.LOGGER.error("Attempted Double World add on {}", entity, new Throwable()); diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index c0539c8826a60cbe25855319cc174fb1520798c0..02b9d280486a23d8eef650566dfaa10ac0b96c9c 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -631,7 +631,11 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess if (pose == this.getPose()) { return; } - this.level.getCraftServer().getPluginManager().callEvent(new EntityPoseChangeEvent(this.getBukkitEntity(), Pose.values()[pose.ordinal()])); + // Paper start - Don't fire sync event during generation + if (!this.generation) { + this.level.getCraftServer().getPluginManager().callEvent(new EntityPoseChangeEvent(this.getBukkitEntity(), Pose.values()[pose.ordinal()])); + } + // Paper end - Don't fire sync event during generation // CraftBukkit end this.entityData.set(Entity.DATA_POSE, pose); } diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java index ca9e63942f3cb8986456410b2a77aafc6541aad2..ccee69813597f45d382268bd1792a49722afebe9 100644 --- a/src/main/java/net/minecraft/world/entity/EntityType.java +++ b/src/main/java/net/minecraft/world/entity/EntityType.java @@ -658,9 +658,15 @@ public class EntityType implements FeatureElement, EntityTypeT } public static Optional create(CompoundTag nbt, Level world, EntitySpawnReason reason) { + // Paper start - Don't fire sync event during generation + return create(nbt, world, reason, false); + } + public static Optional create(CompoundTag nbt, Level world, EntitySpawnReason reason, boolean generation) { + // Paper end - Don't fire sync event during generation return Util.ifElse(EntityType.by(nbt).map((entitytypes) -> { return entitytypes.create(world, reason); }), (entity) -> { + if (generation) entity.generation = true; // Paper - Don't fire sync event during generation entity.load(nbt); }, () -> { EntityType.LOGGER.warn("Skipping Entity with id {}", nbt.getString("id")); diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java index 30424789ba1c8d25f830145501b4a7399b91f2d1..9bc6ed9fd8e5154d39fe12ffed1ecd5ec8e70df8 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -1161,6 +1161,11 @@ public abstract class LivingEntity extends Entity implements Attackable { } public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause) { + // Paper start - Don't fire sync event during generation + return this.addEffect(mobeffect, entity, cause, true); + } + public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause, boolean fireEvent) { + // Paper end - Don't fire sync event during generation // org.spigotmc.AsyncCatcher.catchOp("effect add"); // Spigot // Paper - move to API if (this.isTickingEffects) { this.effectsToProcess.add(new ProcessableEffect(mobeffect, cause)); @@ -1180,10 +1185,13 @@ public abstract class LivingEntity extends Entity implements Attackable { override = new MobEffectInstance(mobeffect1).update(mobeffect); } + if (fireEvent) { // Paper - Don't fire sync event during generation EntityPotionEffectEvent event = CraftEventFactory.callEntityPotionEffectChangeEvent(this, mobeffect1, mobeffect, cause, override); + override = event.isOverride(); // Paper - Don't fire sync event during generation if (event.isCancelled()) { return false; } + } // Paper - Don't fire sync event during generation // CraftBukkit end if (mobeffect1 == null) { @@ -1192,7 +1200,7 @@ public abstract class LivingEntity extends Entity implements Attackable { flag = true; mobeffect.onEffectAdded(this); // CraftBukkit start - } else if (event.isOverride()) { + } else if (override) { // Paper - Don't fire sync event during generation mobeffect1.update(mobeffect); this.onEffectUpdated(mobeffect1, true, entity); // CraftBukkit end diff --git a/src/main/java/net/minecraft/world/entity/monster/Spider.java b/src/main/java/net/minecraft/world/entity/monster/Spider.java index 6c2d4c2163cf299c0943af21d4dc367b5677c089..72e42605c278028480c368762da18f61806d766a 100644 --- a/src/main/java/net/minecraft/world/entity/monster/Spider.java +++ b/src/main/java/net/minecraft/world/entity/monster/Spider.java @@ -172,7 +172,7 @@ public class Spider extends Monster { Holder holder = entityspider_groupdataspider.effect; if (holder != null) { - this.addEffect(new MobEffectInstance(holder, -1), org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN); // CraftBukkit + this.addEffect(new MobEffectInstance(holder, -1), null, org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN, world instanceof net.minecraft.server.level.ServerLevel); // CraftBukkit } } diff --git a/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java b/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java index 734f511d197bc6bf2b02588069eb02c0224781f5..d35b731751e851bee531aa5e7996557658ba6fae 100644 --- a/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java +++ b/src/main/java/net/minecraft/world/level/levelgen/structure/templatesystem/StructureTemplate.java @@ -549,7 +549,7 @@ public class StructureTemplate { private static Optional createEntityIgnoreException(ServerLevelAccessor world, CompoundTag nbt) { // CraftBukkit start // try { - return EntityType.create(nbt, world.getLevel(), EntitySpawnReason.STRUCTURE); + return EntityType.create(nbt, world.getLevel(), EntitySpawnReason.STRUCTURE, true); // Paper - Don't fire sync event during generation // } catch (Exception exception) { // return Optional.empty(); // } diff --git a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java index e444662ee4d9405eeea7caa41b9cd6b36586d840..54c4434662d057a08800918641b95708cda61207 100644 --- a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java +++ b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java @@ -90,15 +90,17 @@ public abstract class DelegatedGeneratorAccess implements WorldGenLevel { return this.handle.getLevel(); } - @Override - public void addFreshEntityWithPassengers(Entity entity) { - this.handle.addFreshEntityWithPassengers(entity); - } - - @Override - public void addFreshEntityWithPassengers(Entity entity, CreatureSpawnEvent.SpawnReason reason) { - this.handle.addFreshEntityWithPassengers(entity, reason); - } + // Paper start - Don't fire sync event during generation; don't override these methods so all entities are run through addFreshEntity + // @Override + // public void addFreshEntityWithPassengers(Entity entity) { + // this.handle.addFreshEntityWithPassengers(entity); + // } + // + // @Override + // public void addFreshEntityWithPassengers(Entity entity, CreatureSpawnEvent.SpawnReason reason) { + // this.handle.addFreshEntityWithPassengers(entity, reason); + // } + // Paper end - Don't fire sync event during generation; don't override these methods so all entities are run through addFreshEntity @Override public ServerLevel getMinecraftWorld() { diff --git a/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java index 35ecf6f824aca56a20280dd683123df1d0c7d66e..1d1fdcf10498c421f106158254e052da6d68d8a5 100644 --- a/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java +++ b/src/main/java/org/bukkit/craftbukkit/util/TransformerGeneratorAccess.java @@ -39,21 +39,23 @@ public class TransformerGeneratorAccess extends DelegatedGeneratorAccess { return super.addFreshEntity(arg0, arg1); } - @Override - public void addFreshEntityWithPassengers(Entity entity) { - if (this.structureTransformer != null && !this.structureTransformer.transformEntity(entity)) { - return; - } - super.addFreshEntityWithPassengers(entity); - } - - @Override - public void addFreshEntityWithPassengers(Entity arg0, SpawnReason arg1) { - if (this.structureTransformer != null && !this.structureTransformer.transformEntity(arg0)) { - return; - } - super.addFreshEntityWithPassengers(arg0, arg1); - } + // Paper start - Don't fire sync event during generation; don't override these methods so all entities are run through addFreshEntity + // @Override + // public void addFreshEntityWithPassengers(Entity entity) { + // if (this.structureTransformer != null && !this.structureTransformer.transformEntity(entity)) { + // return; + // } + // super.addFreshEntityWithPassengers(entity); + // } + // + // @Override + // public void addFreshEntityWithPassengers(Entity arg0, SpawnReason arg1) { + // if (this.structureTransformer != null && !this.structureTransformer.transformEntity(arg0)) { + // return; + // } + // super.addFreshEntityWithPassengers(arg0, arg1); + // } + // Paper end - Don't fire sync event during generation; don't override these methods public boolean setCraftBlock(BlockPos position, CraftBlockState craftBlockState, int i, int j) { if (this.structureTransformer != null) {