Paper/patches/server/0645-Fix-potions-splash-events.patch
Jake Potrebic 9147456fc9
Updated Upstream (CraftBukkit/Spigot) (#8815)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
ab8ace685 SPIGOT-7236: Bone meal doesn't increase use statistic
7dcb59b8e Avoid switch on material in previous commit

Spigot Changes:
19641c75 SPIGOT-7235: World.Spigot#strikeLightningEffect doesn't do anything
2023-01-27 12:52:04 -08:00

156 lines
8.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Thu, 20 May 2021 20:40:53 -0700
Subject: [PATCH] Fix potions splash events
Fix PotionSplashEvent for water splash potions
Fixes SPIGOT-6221: https://hub.spigotmc.org/jira/projects/SPIGOT/issues/SPIGOT-6221
Fix splash events cancellation that still show particles/sound
diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownPotion.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownPotion.java
index b5e2c391ebcca05db5c960792fcb14991aec4fe2..740ff3fed9c8d637527fda8544eba2b9d7d7280a 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/ThrownPotion.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownPotion.java
@@ -105,56 +105,77 @@ public class ThrownPotion extends ThrowableItemProjectile implements ItemSupplie
Potion potionregistry = PotionUtils.getPotion(itemstack);
List<MobEffectInstance> list = PotionUtils.getMobEffects(itemstack);
boolean flag = potionregistry == Potions.WATER && list.isEmpty();
+ boolean showParticles = true; // Paper
if (flag) {
- this.applyWater();
+ showParticles = this.applyWater(); // Paper
} else if (true || !list.isEmpty()) { // CraftBukkit - Call event even if no effects to apply
if (this.isLingering()) {
- this.makeAreaOfEffectCloud(itemstack, potionregistry);
+ showParticles = this.makeAreaOfEffectCloud(itemstack, potionregistry); // Paper
} else {
- this.applySplash(list, hitResult.getType() == HitResult.Type.ENTITY ? ((EntityHitResult) hitResult).getEntity() : null);
+ showParticles = this.applySplash(list, hitResult.getType() == HitResult.Type.ENTITY ? ((EntityHitResult) hitResult).getEntity() : null); // Paper
}
}
+ if (showParticles) { // Paper
int i = potionregistry.hasInstantEffects() ? 2007 : 2002;
this.level.levelEvent(i, this.blockPosition(), PotionUtils.getColor(itemstack));
+ } // Paper
this.discard();
}
}
- private void applyWater() {
+ private static final Predicate<net.minecraft.world.entity.LivingEntity> APPLY_WATER_GET_ENTITIES_PREDICATE = ThrownPotion.WATER_SENSITIVE_OR_ON_FIRE.or(Axolotl.class::isInstance); // Paper
+ private boolean applyWater() { // Paper
AABB axisalignedbb = this.getBoundingBox().inflate(4.0D, 2.0D, 4.0D);
- List<net.minecraft.world.entity.LivingEntity> list = this.level.getEntitiesOfClass(net.minecraft.world.entity.LivingEntity.class, axisalignedbb, ThrownPotion.WATER_SENSITIVE_OR_ON_FIRE);
+ // Paper start
+ List<net.minecraft.world.entity.LivingEntity> list = this.level.getEntitiesOfClass(net.minecraft.world.entity.LivingEntity.class, axisalignedbb, ThrownPotion.APPLY_WATER_GET_ENTITIES_PREDICATE);
+ Map<LivingEntity, Double> affected = new HashMap<>();
+ java.util.Set<LivingEntity> rehydrate = new java.util.HashSet<>();
+ java.util.Set<LivingEntity> extinguish = new java.util.HashSet<>();
Iterator iterator = list.iterator();
while (iterator.hasNext()) {
net.minecraft.world.entity.LivingEntity entityliving = (net.minecraft.world.entity.LivingEntity) iterator.next();
+ if (entityliving instanceof Axolotl axolotl) {
+ rehydrate.add(((org.bukkit.entity.Axolotl) axolotl.getBukkitEntity()));
+ }
double d0 = this.distanceToSqr((Entity) entityliving);
if (d0 < 16.0D) {
if (entityliving.isSensitiveToWater()) {
- entityliving.hurt(DamageSource.indirectMagic(this, this.getOwner()), 1.0F);
+ affected.put(entityliving.getBukkitLivingEntity(), 1.0);
}
if (entityliving.isOnFire() && entityliving.isAlive()) {
- entityliving.extinguishFire();
+ extinguish.add(entityliving.getBukkitLivingEntity());
}
}
}
- List<Axolotl> list1 = this.level.getEntitiesOfClass(Axolotl.class, axisalignedbb);
- Iterator iterator1 = list1.iterator();
-
- while (iterator1.hasNext()) {
- Axolotl axolotl = (Axolotl) iterator1.next();
-
- axolotl.rehydrate();
+ io.papermc.paper.event.entity.WaterBottleSplashEvent event = new io.papermc.paper.event.entity.WaterBottleSplashEvent(
+ (org.bukkit.entity.ThrownPotion) this.getBukkitEntity(), affected, rehydrate, extinguish
+ );
+ if (event.callEvent()) {
+ for (LivingEntity affectedEntity : event.getToDamage()) {
+ ((CraftLivingEntity) affectedEntity).getHandle().hurt(DamageSource.indirectMagic(this, this.getOwner()), 1.0F);
+ }
+ for (LivingEntity toExtinguish : event.getToExtinguish()) {
+ ((CraftLivingEntity) toExtinguish).getHandle().extinguishFire();
+ }
+ for (LivingEntity toRehydrate : event.getToRehydrate()) {
+ if (((CraftLivingEntity) toRehydrate).getHandle() instanceof Axolotl axolotl) {
+ axolotl.rehydrate();
+ }
+ }
+ // Paper end
}
+ return !event.isCancelled(); // Paper
}
- private void applySplash(List<MobEffectInstance> statusEffects, @Nullable Entity entity) {
+ private boolean applySplash(List<MobEffectInstance> statusEffects, @Nullable Entity entity) { // Paper
AABB axisalignedbb = this.getBoundingBox().inflate(4.0D, 2.0D, 4.0D);
List<net.minecraft.world.entity.LivingEntity> list1 = this.level.getEntitiesOfClass(net.minecraft.world.entity.LivingEntity.class, axisalignedbb);
Map<LivingEntity, Double> affected = new HashMap<LivingEntity, Double>(); // CraftBukkit
@@ -170,6 +191,7 @@ public class ThrownPotion extends ThrowableItemProjectile implements ItemSupplie
double d0 = this.distanceToSqr((Entity) entityliving);
if (d0 < 16.0D) {
+ // Paper - diff on change, used when calling the splash event for water splash potions
double d1 = 1.0D - Math.sqrt(d0) / 4.0D;
if (entityliving == entity) {
@@ -222,10 +244,11 @@ public class ThrownPotion extends ThrowableItemProjectile implements ItemSupplie
}
}
}
+ return !event.isCancelled(); // Paper
}
- private void makeAreaOfEffectCloud(ItemStack stack, Potion potion) {
+ private boolean makeAreaOfEffectCloud(ItemStack stack, Potion potion) { // Paper
AreaEffectCloud entityareaeffectcloud = new AreaEffectCloud(this.level, this.getX(), this.getY(), this.getZ());
Entity entity = this.getOwner();
@@ -240,10 +263,12 @@ public class ThrownPotion extends ThrowableItemProjectile implements ItemSupplie
entityareaeffectcloud.setPotion(potion);
Iterator iterator = PotionUtils.getCustomEffects(stack).iterator();
+ boolean noEffects = potion.getEffects().isEmpty(); // Paper
while (iterator.hasNext()) {
MobEffectInstance mobeffect = (MobEffectInstance) iterator.next();
entityareaeffectcloud.addEffect(new MobEffectInstance(mobeffect));
+ noEffects = false; // Paper
}
CompoundTag nbttagcompound = stack.getTag();
@@ -254,12 +279,13 @@ public class ThrownPotion extends ThrowableItemProjectile implements ItemSupplie
// CraftBukkit start
org.bukkit.event.entity.LingeringPotionSplashEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callLingeringPotionSplashEvent(this, entityareaeffectcloud);
- if (!(event.isCancelled() || entityareaeffectcloud.isRemoved())) {
+ if (!(event.isCancelled() || entityareaeffectcloud.isRemoved() || (noEffects && entityareaeffectcloud.effects.isEmpty() && entityareaeffectcloud.getPotion().getEffects().isEmpty()))) { // Paper - don't spawn area effect cloud if the effects were empty and not changed during the event handling
this.level.addFreshEntity(entityareaeffectcloud);
} else {
entityareaeffectcloud.discard();
}
// CraftBukkit end
+ return !event.isCancelled(); // Paper
}
public boolean isLingering() {