From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic <jake.m.potrebic@gmail.com> Date: Sat, 9 Mar 2024 14:13:04 -0800 Subject: [PATCH] Fix DamageSource API Uses the correct entity in the EntityDamageByEntity event Returns the correct entity for API's DamageSource#getCausingEntity diff --git a/src/main/java/net/minecraft/world/damagesource/DamageSource.java b/src/main/java/net/minecraft/world/damagesource/DamageSource.java index aee26dd78953ff43306aaa64161f5b9edcdd4b83..bb1a60180e58c1333e7bb33e8acf1b0225eda8a8 100644 --- a/src/main/java/net/minecraft/world/damagesource/DamageSource.java +++ b/src/main/java/net/minecraft/world/damagesource/DamageSource.java @@ -29,8 +29,8 @@ public class DamageSource { private boolean sweep = false; private boolean melting = false; private boolean poison = false; - private Entity customEntityDamager = null; // This field is a helper for when direct entity damage is not set by vanilla - private Entity customCausingEntityDamager = null; // This field is a helper for when causing entity damage is not set by vanilla + @Nullable + private Entity customEventDamager = null; // This field is a helper for when causing entity damage is not set by vanilla // Paper - fix DamageSource API public DamageSource sweep() { this.sweep = true; @@ -59,33 +59,19 @@ public class DamageSource { return this.poison; } - public Entity getDamager() { - return (this.customEntityDamager != null) ? this.customEntityDamager : this.directEntity; - } - - public Entity getCausingDamager() { - return (this.customCausingEntityDamager != null) ? this.customCausingEntityDamager : this.causingEntity; - } - - public DamageSource customEntityDamager(Entity entity) { - // This method is not intended for change the causing entity if is already set - // also is only necessary if the entity passed is not the direct entity or different from the current causingEntity - if (this.customEntityDamager != null || this.directEntity == entity || this.causingEntity == entity) { - return this; - } - DamageSource damageSource = this.cloneInstance(); - damageSource.customEntityDamager = entity; - return damageSource; + // Paper start - fix DamageSource API + @Nullable + public Entity getCustomEventDamager() { + return (this.customEventDamager != null) ? this.customEventDamager : this.directEntity; } - public DamageSource customCausingEntityDamager(Entity entity) { - // This method is not intended for change the causing entity if is already set - // also is only necessary if the entity passed is not the direct entity or different from the current causingEntity - if (this.customCausingEntityDamager != null || this.directEntity == entity || this.causingEntity == entity) { - return this; + public DamageSource customEventDamager(Entity entity) { + if (this.directEntity != null) { + throw new IllegalStateException("Cannot set custom event damager when direct entity is already set (report a bug to Paper)"); } DamageSource damageSource = this.cloneInstance(); - damageSource.customCausingEntityDamager = entity; + damageSource.customEventDamager = entity; + // Paper end - fix DamageSource API return damageSource; } diff --git a/src/main/java/net/minecraft/world/damagesource/DamageSources.java b/src/main/java/net/minecraft/world/damagesource/DamageSources.java index fddbdb7322a2063996a28c5c3d93c265188b1256..be87cb3cfa15a7d889118cdc4b87232e30749023 100644 --- a/src/main/java/net/minecraft/world/damagesource/DamageSources.java +++ b/src/main/java/net/minecraft/world/damagesource/DamageSources.java @@ -270,13 +270,7 @@ public class DamageSources { } public DamageSource explosion(@Nullable Entity source, @Nullable Entity attacker) { - // CraftBukkit start - return this.explosion(source, attacker, attacker != null && source != null ? DamageTypes.PLAYER_EXPLOSION : DamageTypes.EXPLOSION); - } - - public DamageSource explosion(@Nullable Entity entity, @Nullable Entity entity1, ResourceKey<DamageType> resourceKey) { - return this.source(resourceKey, entity, entity1); - // CraftBukkit end + return this.source(attacker != null && source != null ? DamageTypes.PLAYER_EXPLOSION : DamageTypes.EXPLOSION, source, attacker); // Paper - revert to vanilla } public DamageSource sonicBoom(Entity attacker) { diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index b2a62e6414abbe10b3338fcc1d68530856d59ba4..ef764777c3054522aa875026addd3d1e7cc3d2ec 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -3389,7 +3389,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess return; } - if (!this.hurtServer(world, this.damageSources().lightningBolt().customEntityDamager(lightning), 5.0F)) { + if (!this.hurtServer(world, this.damageSources().lightningBolt().customEventDamager(lightning), 5.0F)) { // Paper - fix DamageSource API return; } // CraftBukkit end diff --git a/src/main/java/net/minecraft/world/entity/animal/Turtle.java b/src/main/java/net/minecraft/world/entity/animal/Turtle.java index 9a9ecc3e2c176c6d9700c4c585250b9780b7629b..d6605c15111dbdb6ee61a24822bc0a9aed7198d6 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java +++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java @@ -341,7 +341,7 @@ public class Turtle extends Animal { @Override public void thunderHit(ServerLevel world, LightningBolt lightning) { - this.hurtServer(world, this.damageSources().lightningBolt().customEntityDamager(lightning), Float.MAX_VALUE); // CraftBukkit + this.hurtServer(world, this.damageSources().lightningBolt().customEventDamager(lightning), Float.MAX_VALUE); // CraftBukkit // Paper - fix DamageSource API } @Override diff --git a/src/main/java/net/minecraft/world/entity/decoration/BlockAttachedEntity.java b/src/main/java/net/minecraft/world/entity/decoration/BlockAttachedEntity.java index 608acb4f3cb8f9a0dc10b819ed4bf577c229dd2c..7ed127a0a0c0d6e7b726216c48ef37af4db37628 100644 --- a/src/main/java/net/minecraft/world/entity/decoration/BlockAttachedEntity.java +++ b/src/main/java/net/minecraft/world/entity/decoration/BlockAttachedEntity.java @@ -108,7 +108,7 @@ public abstract class BlockAttachedEntity extends Entity { } else { if (!this.isRemoved()) { // CraftBukkit start - fire break events - Entity damager = (source.isDirect()) ? source.getDirectEntity() : source.getEntity(); + Entity damager = (!source.isDirect() && source.getEntity() != null) ? source.getEntity() : source.getDirectEntity(); // Paper - fix DamageSource API HangingBreakEvent event; if (damager != null) { event = new HangingBreakByEntityEvent((Hanging) this.getBukkitEntity(), damager.getBukkitEntity(), source.is(DamageTypeTags.IS_EXPLOSION) ? HangingBreakEvent.RemoveCause.EXPLOSION : HangingBreakEvent.RemoveCause.ENTITY); diff --git a/src/main/java/net/minecraft/world/entity/monster/Creeper.java b/src/main/java/net/minecraft/world/entity/monster/Creeper.java index 7a18dc59aed5294cd442994aa2d34ea00b877f46..1906dfc22af208d6e801ad4a8f2f9e9702432691 100644 --- a/src/main/java/net/minecraft/world/entity/monster/Creeper.java +++ b/src/main/java/net/minecraft/world/entity/monster/Creeper.java @@ -271,7 +271,7 @@ public class Creeper extends Monster { if (!event.isCancelled()) { // CraftBukkit end this.dead = true; - worldserver.explode(this, net.minecraft.world.level.Explosion.getDefaultDamageSource(this.level(), this).customCausingEntityDamager(this.entityIgniter), null, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), Level.ExplosionInteraction.MOB); // CraftBukkit + worldserver.explode(this, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), Level.ExplosionInteraction.MOB); // CraftBukkit // Paper - fix DamageSource API (revert to vanilla, no, just no, don't change this) this.spawnLingeringCloud(); this.triggerOnDeathMobEffects(worldserver, Entity.RemovalReason.KILLED); this.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause diff --git a/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java b/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java index c08074d43d105b30ed5093614062a3bcafadfb74..ccc72a2cf02a633655b95f961be310879d8f904f 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java +++ b/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java @@ -135,7 +135,7 @@ public class EvokerFangs extends Entity implements TraceableEntity { if (target.isAlive() && !target.isInvulnerable() && target != entityliving1) { if (entityliving1 == null) { - target.hurt(this.damageSources().magic().customEntityDamager(this), 6.0F); // CraftBukkit + target.hurt(this.damageSources().magic().customEventDamager(this), 6.0F); // CraftBukkit // Paper - fix DamageSource API } else { if (entityliving1.isAlliedTo((Entity) target)) { return; diff --git a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java index 080d886008e1f596733ea5331b32db35adef2e9b..5f790dd24f2bdae827c6dc597064b9b265089751 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java +++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java @@ -170,7 +170,7 @@ public class ThrownEnderpearl extends ThrowableItemProjectile { if (entityplayer1 != null) { entityplayer1.resetFallDistance(); entityplayer1.resetCurrentImpulseContext(); - entityplayer1.hurtServer(entityplayer.serverLevel(), this.damageSources().enderPearl().customEntityDamager(this), 5.0F); // CraftBukkit + entityplayer1.hurtServer(entityplayer.serverLevel(), this.damageSources().enderPearl().customEventDamager(this), 5.0F); // CraftBukkit // Paper - fix DamageSource API } this.playSound(worldserver, vec3d); diff --git a/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java b/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java index 8831af1000d17d5a60302e3b0c522b2d2f082484..4c47b30867e30d84908abf93dbefc252bc8c3453 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java +++ b/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java @@ -77,7 +77,7 @@ public class WitherSkull extends AbstractHurtingProjectile { } } } else { - flag = entity.hurtServer(worldserver, this.damageSources().magic().customCausingEntity(this), 5.0F); // Paper - Fire EntityDamageByEntityEvent for unowned wither skulls + flag = entity.hurtServer(worldserver, this.damageSources().magic().customEventDamager(this), 5.0F); // Paper - Fire EntityDamageByEntityEvent for unowned wither skulls // Paper - fix DamageSource API } if (flag && entity instanceof LivingEntity entityliving) { diff --git a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java index 8532324060eed772a10e2a3429890438cf32f9ba..7df86e7124a9ed359f05324b8fc4c8862f7e4b79 100644 --- a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java +++ b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java @@ -41,13 +41,13 @@ public class CraftDamageSource implements DamageSource { @Override public org.bukkit.entity.Entity getCausingEntity() { - net.minecraft.world.entity.Entity entity = this.getHandle().getCausingDamager(); + net.minecraft.world.entity.Entity entity = this.getHandle().getEntity(); // Paper - fix DamageSource API - revert to vanilla return (entity != null) ? entity.getBukkitEntity() : null; } @Override public org.bukkit.entity.Entity getDirectEntity() { - net.minecraft.world.entity.Entity entity = this.getHandle().getDamager(); + net.minecraft.world.entity.Entity entity = this.getHandle().getDirectEntity(); // Paper - fix DamageSource API return (entity != null) ? entity.getBukkitEntity() : null; } @@ -65,7 +65,7 @@ public class CraftDamageSource implements DamageSource { @Override public boolean isIndirect() { - return this.getHandle().getCausingDamager() != this.getHandle().getDamager(); + return !this.getHandle().isDirect(); // Paper - fix DamageSource API } @Override diff --git a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSourceBuilder.java b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSourceBuilder.java index 4c6e15535fa40aad8cf1920f392589404f9ba79c..35eb95ef6fb6a0f7ea63351e90741c489fdd15f9 100644 --- a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSourceBuilder.java +++ b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSourceBuilder.java @@ -41,6 +41,11 @@ public class CraftDamageSourceBuilder implements DamageSource.Builder { @Override public DamageSource build() { + // Paper start - fix DamageCause API + if (this.causingEntity != null && this.directEntity == null) { + throw new IllegalArgumentException("Direct entity must be set if causing entity is set"); + } + // Paper end - fix DamageCause API return CraftDamageSource.buildFromBukkit(this.damageType, this.causingEntity, this.directEntity, this.damageLocation); } } diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java index ea4e1bf4bfe003c102ecce5958131aa86ec83864..937ed4e77739ff02ff1e4405047f15eac40906fe 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -1092,7 +1092,7 @@ public class CraftEventFactory { private static EntityDamageEvent handleEntityDamageEvent(Entity entity, DamageSource source, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions, boolean cancelled) { CraftDamageSource bukkitDamageSource = new CraftDamageSource(source); - Entity damager = (source.getDamager() != null) ? source.getDamager() : source.getEntity(); + final Entity damager = source.getCustomEventDamager(); // Paper - fix DamageSource API if (source.is(DamageTypeTags.IS_EXPLOSION)) { if (damager == null) { return CraftEventFactory.callEntityDamageEvent(source.getDirectBlock(), source.getDirectBlockState(), entity, DamageCause.BLOCK_EXPLOSION, bukkitDamageSource, modifiers, modifierFunctions, cancelled);