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 EntityPotionEffectEvent during worldgen Asynchronous chunk generation provides an opportunity for mobs being added with generation to have effects added to them. The event does not support asynchronous firing. diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java index 1580c3a13a7fd84e709e184ad57e7d70d143abd2..d01ce95110b42000a67e2697eed3da0e050f144b 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -1133,6 +1133,11 @@ public abstract class LivingEntity extends Entity implements Attackable { } public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause) { + // Paper start - add boolean param to optionally fire the event + return this.addEffect(mobeffect, entity, cause, true); + } + public boolean addEffect(MobEffectInstance mobeffect, @Nullable Entity entity, EntityPotionEffectEvent.Cause cause, boolean fireEvent) { + // Paper end // org.spigotmc.AsyncCatcher.catchOp("effect add"); // Spigot // Paper - move to API if (this.isTickingEffects) { this.effectsToProcess.add(new ProcessableEffect(mobeffect, cause)); @@ -1152,10 +1157,13 @@ public abstract class LivingEntity extends Entity implements Attackable { override = new MobEffectInstance(mobeffect1).update(mobeffect); } + if (fireEvent) { // Paper EntityPotionEffectEvent event = CraftEventFactory.callEntityPotionEffectChangeEvent(this, mobeffect1, mobeffect, cause, override); + override = event.isOverride(); // Paper if (event.isCancelled()) { return false; } + } // Paper // CraftBukkit end if (mobeffect1 == null) { @@ -1163,7 +1171,7 @@ public abstract class LivingEntity extends Entity implements Attackable { this.onEffectAdded(mobeffect, entity); flag = true; // CraftBukkit start - } else if (event.isOverride()) { + } else if (override) { // Paper 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 5a9f4a022c8e7a0804543335bfe91e1328d040e6..9063f66b0497a3eb3893e307e685be692cc5c128 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 - only fire the effect event if this is happening in a ServerLevel } }