From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic 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 533ea6cbb813c8d1dc2bb3f65fd94d4fa5dd591e..dd9638bdb228a53e72820e0e7cf6fe6fcc08fe4b 100644 --- a/src/main/java/net/minecraft/world/damagesource/DamageSource.java +++ b/src/main/java/net/minecraft/world/damagesource/DamageSource.java @@ -29,7 +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 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; @@ -58,18 +59,19 @@ public class DamageSource { return this.poison; } - public Entity getDamager() { - return (this.customEntityDamager != null) ? this.customEntityDamager : this.directEntity; + // Paper start - fix DamageSource API + @Nullable + public Entity getCustomEventDamager() { + return (this.customEventDamager != null) ? this.customEventDamager : this.directEntity; } - 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; + 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.customEntityDamager = 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 abda6094e02ebd2589ba0e4760e574fcf44dc8e4..5ec8cbd07a1830876f58e1fd33de6df4466d7e95 100644 --- a/src/main/java/net/minecraft/world/damagesource/DamageSources.java +++ b/src/main/java/net/minecraft/world/damagesource/DamageSources.java @@ -258,13 +258,7 @@ 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 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 a28a26fd6b409471c14e5702b45f42b23e2bfbeb..d6c24ad4e32fba5416c7cdd898d72f6207ae278a 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -3201,7 +3201,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess return; } - if (!this.hurt(this.damageSources().lightningBolt().customEntityDamager(lightning), 5.0F)) { + if (!this.hurt(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 b4d68a08ec1e4ec7bcc123bcb6c2dc90272430cf..ffffa53fcaa6ec8681b283fa20bb5a3320ad9c11 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Turtle.java +++ b/src/main/java/net/minecraft/world/entity/animal/Turtle.java @@ -334,7 +334,7 @@ public class Turtle extends Animal { @Override public void thunderHit(ServerLevel world, LightningBolt lightning) { - this.hurt(this.damageSources().lightningBolt().customEntityDamager(lightning), Float.MAX_VALUE); // CraftBukkit + this.hurt(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/HangingEntity.java b/src/main/java/net/minecraft/world/entity/decoration/HangingEntity.java index 0ffff5329fa2c7833f9ec71528cb7f951cf78109..bf2d91bbb4bf401696f5f5d14a67e3920a179084 100644 --- a/src/main/java/net/minecraft/world/entity/decoration/HangingEntity.java +++ b/src/main/java/net/minecraft/world/entity/decoration/HangingEntity.java @@ -203,7 +203,7 @@ public abstract class HangingEntity extends Entity { } else { if (!this.isRemoved() && !this.level().isClientSide) { // CraftBukkit start - fire break events - Entity damager = (source.isIndirect()) ? source.getEntity() : source.getDirectEntity(); + Entity damager = (source.isIndirect() && 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 7db5de71b0353d9807978c0351870fd99b76ee67..0ae4ba060b2ce2c79e1235c939f3c1926eb6e33e 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 implements PowerableMob { if (!event.isCancelled()) { // CraftBukkit end this.dead = true; - this.level().explode(this, this.level().damageSources().explosion(this, this.entityIgniter, net.minecraft.world.damagesource.DamageTypes.EXPLOSION), null, this.getX(), this.getY(), this.getZ(), event.getRadius(), event.getFire(), Level.ExplosionInteraction.MOB); // CraftBukkit + this.level().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.discard(EntityRemoveEvent.Cause.EXPLODE); // CraftBukkit - add Bukkit remove cause this.spawnLingeringCloud(); // CraftBukkit start 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 edc5cfd3f3eab176df9080cf932dac3905f1b26d..f8aa723f18e28b02d4b7055404922ff8d7a73f8d 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java +++ b/src/main/java/net/minecraft/world/entity/projectile/EvokerFangs.java @@ -133,7 +133,7 @@ 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 ced6bf2fc4556c9b2b32ac382058506e931c1475..519755b7f8bc7e8bb9fab135fc5bf7de3a9419f9 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java +++ b/src/main/java/net/minecraft/world/entity/projectile/ThrownEnderpearl.java @@ -85,7 +85,7 @@ public class ThrownEnderpearl extends ThrowableItemProjectile { entityplayer.connection.teleport(teleEvent.getTo()); entity.resetFallDistance(); - entity.hurt(this.damageSources().fall().customEntityDamager(this), 5.0F); // CraftBukkit + entity.hurt(this.damageSources().fall().customEventDamager(this), 5.0F); // CraftBukkit // Paper - fix DamageSource API } // CraftBukkit end this.level().playSound((Player) null, this.getX(), this.getY(), this.getZ(), SoundEvents.PLAYER_TELEPORT, SoundSource.PLAYERS); 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 02931861de955352e71d6f5ffc720a17304815fe..55b4b5ad5f084c9a271a716d076672478d6486ba 100644 --- a/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java +++ b/src/main/java/net/minecraft/world/entity/projectile/WitherSkull.java @@ -72,7 +72,7 @@ public class WitherSkull extends AbstractHurtingProjectile { } } } else { - flag = entity.hurt(this.damageSources().magic().customCausingEntity(this), 5.0F); // Paper - Fire EntityDamageByEntityEvent for unowned wither skulls + flag = entity.hurt(this.damageSources().magic().customEventDamager(this), 5.0F); // Paper - Fire EntityDamageByEntityEvent for unowned wither skulls // Paper - fix DamageSource API } if (flag && entity instanceof LivingEntity) { diff --git a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java index ab67c5caaff6e8c7de293b528636f53254b805bd..6d92856b5089e946a85d519cadce080bc6c3574f 100644 --- a/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java +++ b/src/main/java/org/bukkit/craftbukkit/damage/CraftDamageSource.java @@ -47,7 +47,7 @@ public class CraftDamageSource implements DamageSource { @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().getEntity() != this.getHandle().getDamager(); + return this.getHandle().isIndirect(); // 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 1d526e76eca94cf2dce473cff2b56ea9f7f0ec18..e075770772b84a79f2e05f273f31a4aeb479ff98 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -1084,7 +1084,7 @@ public class CraftEventFactory { private static EntityDamageEvent handleEntityDamageEvent(Entity entity, DamageSource source, Map modifiers, Map> 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);