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 9e8f47ab8b337a43760d781852348e4bddbb46d9..0c4c20ce794dd7e12cf1712dccc975bf21b01133 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -1508,6 +1508,7 @@ public class ServerLevel extends Level implements WorldGenLevel { // 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 633a709d3f7768dce644affc4ce9b75711e971f1..da52068d063f5dd978454e3b516384df25eb204b 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -678,7 +678,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S 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 a6e20b5ee4fe1841dfc2350264b5935b968fe3f3..9da8d56ff3768fb37d1ab89300da4eca19e6218d 100644 --- a/src/main/java/net/minecraft/world/entity/EntityType.java +++ b/src/main/java/net/minecraft/world/entity/EntityType.java @@ -588,9 +588,15 @@ public class EntityType implements FeatureElement, EntityTypeT } public static Optional create(CompoundTag nbt, Level world) { + // Paper start - Don't fire sync event during generation + return create(nbt, world, false); + } + public static Optional create(CompoundTag nbt, Level world, boolean generation) { + // Paper end - Don't fire sync event during generation return Util.ifElse(EntityType.by(nbt).map((entitytypes) -> { return entitytypes.create(world); }), (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 e11eb4b3796debeadde58e43d9176aef029228bd..228e8233caf3653d6411e4d85e5dcfd6a012b40f 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -1134,6 +1134,11 @@ 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)); @@ -1153,10 +1158,13 @@ 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) { @@ -1164,7 +1172,7 @@ public abstract class LivingEntity extends Entity implements Attackable { this.onEffectAdded(mobeffect, entity); flag = true; // 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 ff004d5c0dee027acea51aa4886065636335e2a9..0c68ed759421d6bce4435399f1b4980510081cac 100644 --- a/src/main/java/net/minecraft/world/entity/monster/Spider.java +++ b/src/main/java/net/minecraft/world/entity/monster/Spider.java @@ -182,7 +182,7 @@ public class Spider extends Monster { MobEffect mobeffectlist = entityspider_groupdataspider.effect; if (mobeffectlist != null) { - this.addEffect(new MobEffectInstance(mobeffectlist, -1), org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN); // CraftBukkit + this.addEffect(new MobEffectInstance(mobeffectlist, -1), null, org.bukkit.event.entity.EntityPotionEffectEvent.Cause.SPIDER_SPAWN, world instanceof net.minecraft.server.level.ServerLevel); // CraftBukkit // Paper - Don't fire sync event during generation; only if this is happening in a ServerLevel } } 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 ae8a42261337bf736d0cc1bbe18da2b773417ca4..471e8493622c89d44a82f42f135cb308c9e0fbfe 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 @@ -518,7 +518,7 @@ public class StructureTemplate { private static Optional createEntityIgnoreException(ServerLevelAccessor world, CompoundTag nbt) { // CraftBukkit start // try { - return EntityType.create(nbt, world.getLevel()); + return EntityType.create(nbt, world.getLevel(), 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 a650411e3fa7e2a045ac55502c77028be348acf1..86a20c91beff6b27e6ec886e49ba902b216106f2 100644 --- a/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java +++ b/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java @@ -93,15 +93,17 @@ public abstract class DelegatedGeneratorAccess implements WorldGenLevel { return this.handle.getLevel(); } - @Override - public void addFreshEntityWithPassengers(Entity arg0, CreatureSpawnEvent.SpawnReason arg1) { - this.handle.addFreshEntityWithPassengers(arg0, arg1); - } - - @Override - public void addFreshEntityWithPassengers(Entity entity) { - this.handle.addFreshEntityWithPassengers(entity); - } + // 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 arg0, CreatureSpawnEvent.SpawnReason arg1) { + // this.handle.addFreshEntityWithPassengers(arg0, arg1); + // } + // + // @Override + // public void addFreshEntityWithPassengers(Entity entity) { + // this.handle.addFreshEntityWithPassengers(entity); + // } + // Paper end - Don't fire sync event during generation; don't override these methods @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 b4b297945fb601701aac845d09e88fb74b09c3fa..7482dfe64458320d44089c0778591694202e9f70 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) {