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PaperMC/patches/server/0934-Fix-DamageSource-API.patch
Jake Potrebic c6aa61ee18
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11561) 
Updated Upstream (Bukkit/CraftBukkit/Spigot)

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

Bukkit Changes:
b9df8e9f SPIGOT-7933: Improve custom Minecart max speed
fc496179 Fix InstrumentTest
7c0ec598 PR-1075: Make Art an interface
c389f5a4 PR-1074: Make Sound an interface

CraftBukkit Changes:
df1efc0bb SPIGOT-7945: `Bukkit#dispatchCommand` throws `UnsupportedOperationException`
285df6e85 SPIGOT-7933: Improve custom Minecart max speed
a0f3d4e50 SPIGOT-7940: Recipe book errors after reload
9e0618ec2 SPIGOT-7937: Cannot spawn minecart during world generation with minecart_improvements enabled
1eb4d28da SPIGOT-7941: Fix resistance over 4 amplify causing issues in damage
52b99158a PR-1504: Make Art an interface
e18ae35f1 PR-1502: Make Sound an interface

Spigot Changes:
e65d67a7 SPIGOT-7934: Item entities start "bouncing" under certain conditions
2024-11-04 18:42:38 +01:00

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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 b7594a0fd6fe7e25d13202c95b2c39a04e84abde..6ebd653ea3c302f26d02f81b6718924708148e4c 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);
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