PaperMC/patches/server/0244-Improve-death-events.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Phoenix616 <mail@moep.tv>
Date: Tue, 21 Aug 2018 01:39:35 +0100
Subject: [PATCH] Improve death events

This adds the ability to cancel the death events and to modify the sound
an entity makes when dying. (In cases were no sound should it will be
called with shouldPlaySound set to false allowing unsilencing of silent
entities)

It makes handling of entity deaths a lot nicer as you no longer need
to listen on the damage event and calculate if the entity dies yourself
to cancel the death which has the benefit of also receiving the dropped
items and experience which is otherwise only properly possible by using
internal code.

== AT ==
public net.minecraft.world.entity.LivingEntity getDeathSound()Lnet/minecraft/sounds/SoundEvent;
public net.minecraft.world.entity.LivingEntity getSoundVolume()F

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 16f7278ce8d5b8c45026baeb017fdce1ed5945c8..508de7064c08eb22cd66658a98f9833ddc030618 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -268,6 +268,10 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
     private int containerCounter;
     public boolean wonGame;
     private int containerUpdateDelay; // Paper - Configurable container update tick rate
+    // Paper start - cancellable death event
+    public boolean queueHealthUpdatePacket;
+    public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket;
+    // Paper end - cancellable death event
 
     // CraftBukkit start
     public CraftPlayer.TransferCookieConnection transferCookieConnection;
@@ -896,7 +900,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
 
     @Override
     public void die(DamageSource damageSource) {
-        this.gameEvent(GameEvent.ENTITY_DIE);
+        // this.gameEvent(GameEvent.ENTITY_DIE); // Paper - move below event cancellation check
         boolean flag = this.level().getGameRules().getBoolean(GameRules.RULE_SHOWDEATHMESSAGES);
         // CraftBukkit start - fire PlayerDeathEvent
         if (this.isRemoved()) {
@@ -924,6 +928,16 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
         String deathmessage = defaultMessage.getString();
         this.keepLevel = keepInventory; // SPIGOT-2222: pre-set keepLevel
         org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, damageSource, loot, PaperAdventure.asAdventure(defaultMessage), keepInventory); // Paper - Adventure
+        // Paper start - cancellable death event
+        if (event.isCancelled()) {
+            // make compatible with plugins that might have already set the health in an event listener
+            if (this.getHealth() <= 0) {
+                this.setHealth((float) event.getReviveHealth());
+            }
+            return;
+        }
+        this.gameEvent(GameEvent.ENTITY_DIE); // moved from the top of this method
+        // Paper end
 
         // SPIGOT-943 - only call if they have an inventory open
         if (this.containerMenu != this.inventoryMenu) {
@@ -1072,8 +1086,17 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
                         }
                     }
                 }
-
-                return super.hurt(source, amount);
+                // Paper start - cancellable death events
+                //return super.hurt(source, amount);
+                this.queueHealthUpdatePacket = true;
+                boolean damaged = super.hurt(source, amount);
+                this.queueHealthUpdatePacket = false;
+                if (this.queuedHealthUpdatePacket != null) {
+                    this.connection.send(this.queuedHealthUpdatePacket);
+                    this.queuedHealthUpdatePacket = null;
+                }
+                return damaged;
+                // Paper end
             }
         }
     }
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 63c3bef55dae608ddd19cf6c8348b3027460e2af..d8681ace0ba74a6eb3b6abafe4915b5e753c02f0 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -283,6 +283,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
     public Set<UUID> collidableExemptions = new HashSet<>();
     public boolean bukkitPickUpLoot;
     public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
+    public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
 
     @Override
     public float getBukkitYaw() {
@@ -1526,11 +1527,12 @@ public abstract class LivingEntity extends Entity implements Attackable {
 
             if (this.isDeadOrDying()) {
                 if (!this.checkTotemDeathProtection(source)) {
-                    if (flag1) {
-                        this.makeSound(this.getDeathSound());
-                    }
+                    // Paper start - moved into CraftEventFactory event caller for cancellable death event
+                    this.silentDeath = !flag1; // mark entity as dying silently
+                    // Paper end
 
                     this.die(source);
+                    this.silentDeath = false; // Paper - cancellable death event - reset to default
                 }
             } else if (flag1) {
                 this.playHurtSound(source);
@@ -1689,6 +1691,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
             Entity entity = damageSource.getEntity();
             LivingEntity entityliving = this.getKillCredit();
 
+            /* // Paper - move down to make death event cancellable - this is the awardKillScore below
             if (this.deathScore >= 0 && entityliving != null) {
                 entityliving.awardKillScore(this, this.deathScore, damageSource);
             }
@@ -1700,24 +1703,59 @@ public abstract class LivingEntity extends Entity implements Attackable {
             if (!this.level().isClientSide && this.hasCustomName()) {
                 if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot
             }
+             */ // Paper - move down to make death event cancellable - this is the awardKillScore below
 
             this.dead = true;
-            this.getCombatTracker().recheckStatus();
+            // Paper - moved into if below
             Level world = this.level();
 
             if (world instanceof ServerLevel) {
                 ServerLevel worldserver = (ServerLevel) world;
+                // Paper - move below into if for onKill
+
+                // Paper start
+                org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(worldserver, damageSource);
+                if (deathEvent == null || !deathEvent.isCancelled()) {
+                    if (this.deathScore >= 0 && entityliving != null) {
+                        entityliving.awardKillScore(this, this.deathScore, damageSource);
+                    }
+                    // Paper start - clear equipment if event is not cancelled
+                    if (this instanceof Mob) {
+                        for (EquipmentSlot slot : this.clearedEquipmentSlots) {
+                            this.setItemSlot(slot, ItemStack.EMPTY);
+                        }
+                        this.clearedEquipmentSlots.clear();
+                    }
+                    // Paper end
+
+                    if (this.isSleeping()) {
+                        this.stopSleeping();
+                    }
 
-                if (entity == null || entity.killedEntity(worldserver, this)) {
+                    if (!this.level().isClientSide && this.hasCustomName()) {
+                        if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot
+                    }
+
+                    this.getCombatTracker().recheckStatus();
+                    if (entity != null) {
+                        entity.killedEntity((ServerLevel) this.level(), this);
+                    }
                     this.gameEvent(GameEvent.ENTITY_DIE);
-                    this.dropAllDeathLoot(worldserver, damageSource);
+                } else {
+                    this.dead = false;
+                    this.setHealth((float) deathEvent.getReviveHealth());
+                }
+                // Paper end
                     this.createWitherRose(entityliving);
                 }
 
+            // Paper start
+            if (this.dead) { // Paper
                 this.level().broadcastEntityEvent(this, (byte) 3);
-            }
 
             this.setPose(Pose.DYING);
+            }
+            // Paper end
         }
     }
 
@@ -1725,7 +1763,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
         if (!this.level().isClientSide) {
             boolean flag = false;
 
-            if (adversary instanceof WitherBoss) {
+            if (this.dead && adversary instanceof WitherBoss) { // Paper
                 if (this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
                     BlockPos blockposition = this.blockPosition();
                     BlockState iblockdata = Blocks.WITHER_ROSE.defaultBlockState();
@@ -1754,24 +1792,37 @@ public abstract class LivingEntity extends Entity implements Attackable {
         }
     }
 
-    protected void dropAllDeathLoot(ServerLevel world, DamageSource damageSource) {
+    // Paper start
+    protected boolean clearEquipmentSlots = true;
+    protected Set<EquipmentSlot> clearedEquipmentSlots = new java.util.HashSet<>();
+    protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(ServerLevel world, DamageSource damageSource) {
+        // Paper end
         boolean flag = this.lastHurtByPlayerTime > 0;
 
         this.dropEquipment(); // CraftBukkit - from below
         if (this.shouldDropLoot() && world.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
             this.dropFromLootTable(damageSource, flag);
+            // Paper start
+            final boolean prev = this.clearEquipmentSlots;
+            this.clearEquipmentSlots = false;
+            this.clearedEquipmentSlots.clear();
+            // Paper end
             this.dropCustomDeathLoot(world, damageSource, flag);
+            this.clearEquipmentSlots = prev; // Paper
         }
         // CraftBukkit start - Call death event
-        CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops);
+        org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, damageSource, this.drops); // Paper
+        this.postDeathDropItems(deathEvent); // Paper
         this.drops = new ArrayList<>();
         // CraftBukkit end
 
         // this.dropEquipment();// CraftBukkit - moved up
         this.dropExperience(damageSource.getEntity());
+        return deathEvent; // Paper
     }
 
     protected void dropEquipment() {}
+    protected void postDeathDropItems(org.bukkit.event.entity.EntityDeathEvent event) {} // Paper - method for post death logic that cannot be ran before the event is potentially cancelled
 
     public int getExpReward(@Nullable Entity entity) { // CraftBukkit
         Level world = this.level();
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index b7c216b79684a4dbb93899fd2d3bc5a9e1b04f2e..4b0e269f3580c1c6dac1e5f2dd3cdac1d8e1118a 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1121,6 +1121,12 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Leashab
 
     }
 
+    // Paper start
+    protected boolean shouldSkipLoot(EquipmentSlot slot) { // method to avoid to fallback into the global mob loot logic (i.e fox)
+        return false;
+    }
+    // Paper end
+
     @Override
     protected void dropCustomDeathLoot(ServerLevel world, DamageSource source, boolean causedByPlayer) {
         super.dropCustomDeathLoot(world, source, causedByPlayer);
@@ -1129,6 +1135,7 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Leashab
 
         for (int j = 0; j < i; ++j) {
             EquipmentSlot enumitemslot = aenumitemslot[j];
+            if (this.shouldSkipLoot(enumitemslot)) continue; // Paper
             ItemStack itemstack = this.getItemBySlot(enumitemslot);
             float f = this.getEquipmentDropChance(enumitemslot);
 
@@ -1153,7 +1160,13 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Leashab
                     }
 
                     this.spawnAtLocation(itemstack);
+                    if (this.clearEquipmentSlots) { // Paper
                     this.setItemSlot(enumitemslot, ItemStack.EMPTY);
+                    // Paper start
+                    } else {
+                        this.clearedEquipmentSlots.add(enumitemslot);
+                    }
+                    // Paper end
                 }
             }
         }
diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java
index a6788da1505f9e119c03b94488f5e006da13e918..e46c8231ee318eda0512afbb6343b426b4838643 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
@@ -704,16 +704,38 @@ public class Fox extends Animal implements VariantHolder<Fox.Type> {
         return this.getTrustedUUIDs().contains(uuid);
     }
 
+    // Paper start - handle the bitten item separately like vanilla
     @Override
-    protected void dropAllDeathLoot(ServerLevel world, DamageSource damageSource) {
+    protected boolean shouldSkipLoot(EquipmentSlot slot) {
+        return slot == EquipmentSlot.MAINHAND;
+    }
+    // Paper end
+
+    @Override
+    // Paper start - Cancellable death event
+    protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(ServerLevel world, DamageSource damageSource) {
         ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND);
 
-        if (!itemstack.isEmpty()) {
+        boolean releaseMouth = false;
+        if (!itemstack.isEmpty() && this.level().getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) { // Fix MC-153010
             this.spawnAtLocation(itemstack);
+            releaseMouth = true;
+        }
+
+        org.bukkit.event.entity.EntityDeathEvent deathEvent = super.dropAllDeathLoot(world, damageSource);
+
+        // Below is code to drop
+
+        if (deathEvent == null || deathEvent.isCancelled()) {
+            return deathEvent;
+        }
+
+        if (releaseMouth) {
+            // Paper end - Cancellable death event
             this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY);
         }
 
-        super.dropAllDeathLoot(world, damageSource);
+        return deathEvent; // Paper - Cancellable death event
     }
 
     public static boolean isPathClear(Fox fox, LivingEntity chasedEntity) {
diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java
index 767817fb1418958c89d0db9da4ae7eb8a5a16076..5654c614f07f07ff642ba4851b0cb6fa185924ae 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java
@@ -71,9 +71,17 @@ public abstract class AbstractChestedHorse extends AbstractHorse {
                 this.spawnAtLocation(Blocks.CHEST);
             }
 
+            //this.setChest(false); // Paper - moved to post death logic
+        }
+    }
+
+    // Paper start
+    protected void postDeathDropItems(org.bukkit.event.entity.EntityDeathEvent event) {
+        if (this.hasChest() && (event == null || !event.isCancelled())) {
             this.setChest(false);
         }
     }
+    // Paper end
 
     @Override
     public void addAdditionalSaveData(CompoundTag nbt) {
diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
index ee3902cbada46ffb78c42dbf6f00c859546c76e1..92bb0c63330ad3a4cb13b2dc655020714e9b1ffd 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
@@ -505,8 +505,10 @@ public class ArmorStand extends LivingEntity {
                     }
                     // CraftBukkit end
                     if (source.is(DamageTypeTags.IS_EXPLOSION)) {
-                        this.brokenByAnything(worldserver, source);
-                        this.kill(source); // CraftBukkit
+                        // Paper start - avoid duplicate event call
+                        org.bukkit.event.entity.EntityDeathEvent event = this.brokenByAnything(worldserver, source);
+                        if (!event.isCancelled()) this.kill(source, false); // CraftBukkit
+                        // Paper end
                         return false;
                     } else if (source.is(DamageTypeTags.IGNITES_ARMOR_STANDS)) {
                         if (this.isOnFire()) {
@@ -549,9 +551,9 @@ public class ArmorStand extends LivingEntity {
                                     this.gameEvent(GameEvent.ENTITY_DAMAGE, source.getEntity());
                                     this.lastHit = i;
                                 } else {
-                                    this.brokenByPlayer(worldserver, source);
+                                    org.bukkit.event.entity.EntityDeathEvent event = this.brokenByPlayer(worldserver, source); // Paper
                                     this.showBreakingParticles();
-                                    this.discard(EntityRemoveEvent.Cause.DEATH); // CraftBukkit - SPIGOT-4890: remain as this.discard() since above damagesource method will call death event
+                                    if (!event.isCancelled()) this.kill(source, false); // Paper - we still need to kill to follow vanilla logic (emit the game event etc...)
                                 }
 
                                 return true;
@@ -604,8 +606,10 @@ public class ArmorStand extends LivingEntity {
 
         f1 -= amount;
         if (f1 <= 0.5F) {
-            this.brokenByAnything(world, damageSource);
-            this.kill(damageSource); // CraftBukkit
+            // Paper start - avoid duplicate event call
+            org.bukkit.event.entity.EntityDeathEvent event = this.brokenByAnything(world, damageSource);
+            if (!event.isCancelled()) this.kill(damageSource, false); // CraftBukkit
+            // Paper end
         } else {
             this.setHealth(f1);
             this.gameEvent(GameEvent.ENTITY_DAMAGE, damageSource.getEntity());
@@ -613,15 +617,15 @@ public class ArmorStand extends LivingEntity {
 
     }
 
-    private void brokenByPlayer(ServerLevel world, DamageSource damageSource) {
+    private org.bukkit.event.entity.EntityDeathEvent brokenByPlayer(ServerLevel world, DamageSource damageSource) { // Paper
         ItemStack itemstack = new ItemStack(Items.ARMOR_STAND);
 
         itemstack.set(DataComponents.CUSTOM_NAME, this.getCustomName());
         this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops
-        this.brokenByAnything(world, damageSource);
+        return this.brokenByAnything(world, damageSource); // Paper
     }
 
-    private void brokenByAnything(ServerLevel world, DamageSource damageSource) {
+    private org.bukkit.event.entity.EntityDeathEvent brokenByAnything(ServerLevel world, DamageSource damageSource) { // Paper
         this.playBrokenSound();
         // this.dropAllDeathLoot(worldserver, damagesource); // CraftBukkit - moved down
 
@@ -643,7 +647,7 @@ public class ArmorStand extends LivingEntity {
                 this.armorItems.set(i, ItemStack.EMPTY);
             }
         }
-        this.dropAllDeathLoot(world, damageSource); // CraftBukkit - moved from above
+        return this.dropAllDeathLoot(world, damageSource); // CraftBukkit - moved from above // Paper
 
     }
 
@@ -770,7 +774,15 @@ public class ArmorStand extends LivingEntity {
     }
 
     public void kill(DamageSource damageSource) {
-        org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, (damageSource == null ? this.damageSources().genericKill() : damageSource), this.drops); // CraftBukkit - call event
+        // Paper start - make cancellable
+        this.kill(damageSource, true);
+    }
+    public void kill(DamageSource damageSource, boolean callEvent) {
+        if (callEvent) {
+            org.bukkit.event.entity.EntityDeathEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, (damageSource == null ? this.damageSources().genericKill() : damageSource), this.drops); // CraftBukkit - call event
+            if (event.isCancelled()) return;
+        }
+        // Paper end
         this.remove(Entity.RemovalReason.KILLED, EntityRemoveEvent.Cause.DEATH); // CraftBukkit - add Bukkit remove cause
         // CraftBukkit end
         this.gameEvent(GameEvent.ENTITY_DIE);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index c0b92358c03d1724e8c134563f9ca98e69081c6a..a33fc9288165ec013cef6b90d72871f0058c0857 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -2516,7 +2516,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
     @Override
     public void sendHealthUpdate() {
         FoodData foodData = this.getHandle().getFoodData();
-        this.sendHealthUpdate(this.getScaledHealth(), foodData.getFoodLevel(), foodData.getSaturationLevel());
+        // Paper start - cancellable death event
+        ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket(this.getScaledHealth(), foodData.getFoodLevel(), foodData.getSaturationLevel());
+        if (this.getHandle().queueHealthUpdatePacket) {
+            this.getHandle().queuedHealthUpdatePacket = packet;
+        } else {
+            this.getHandle().connection.send(packet);
+        }
+        // Paper end
     }
 
     public void injectScaledMaxHealth(Collection<AttributeInstance> collection, boolean force) {
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 635982e7c9bb650f72a987e2f866d6f91b75efcf..5254a97f94d24717bdbba1768fffc3d8d292f0fe 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -893,9 +893,16 @@ public class CraftEventFactory {
         CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
         CraftDamageSource bukkitDamageSource = new CraftDamageSource(damageSource);
         EntityDeathEvent event = new EntityDeathEvent(entity, bukkitDamageSource, drops, victim.getExpReward(damageSource.getEntity()));
+        populateFields(victim, event); // Paper - make cancellable
         CraftWorld world = (CraftWorld) entity.getWorld();
         Bukkit.getServer().getPluginManager().callEvent(event);
 
+        // Paper start - make cancellable
+        if (event.isCancelled()) {
+            return event;
+        }
+        playDeathSound(victim, event);
+        // Paper end
         victim.expToDrop = event.getDroppedExp();
 
         for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
@@ -913,8 +920,15 @@ public class CraftEventFactory {
         PlayerDeathEvent event = new PlayerDeathEvent(entity, bukkitDamageSource, drops, victim.getExpReward(damageSource.getEntity()), 0, deathMessage);
         event.setKeepInventory(keepInventory);
         event.setKeepLevel(victim.keepLevel); // SPIGOT-2222: pre-set keepLevel
+        populateFields(victim, event); // Paper - make cancellable
         org.bukkit.World world = entity.getWorld();
         Bukkit.getServer().getPluginManager().callEvent(event);
+        // Paper start - make cancellable
+        if (event.isCancelled()) {
+            return event;
+        }
+        playDeathSound(victim, event);
+        // Paper end
 
         victim.keepLevel = event.getKeepLevel();
         victim.newLevel = event.getNewLevel();
@@ -931,6 +945,31 @@ public class CraftEventFactory {
         return event;
     }
 
+    // Paper start - helper methods for making death event cancellable
+    // Add information to death event
+    private static void populateFields(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) {
+        event.setReviveHealth(event.getEntity().getAttribute(org.bukkit.attribute.Attribute.GENERIC_MAX_HEALTH).getValue());
+        event.setShouldPlayDeathSound(!victim.silentDeath && !victim.isSilent());
+        net.minecraft.sounds.SoundEvent soundEffect = victim.getDeathSound();
+        event.setDeathSound(soundEffect != null ? org.bukkit.craftbukkit.CraftSound.minecraftToBukkit(soundEffect) : null);
+        event.setDeathSoundCategory(org.bukkit.SoundCategory.valueOf(victim.getSoundSource().name()));
+        event.setDeathSoundVolume(victim.getSoundVolume());
+        event.setDeathSoundPitch(victim.getVoicePitch());
+    }
+
+    // Play death sound manually
+    private static void playDeathSound(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) {
+        if (event.shouldPlayDeathSound() && event.getDeathSound() != null && event.getDeathSoundCategory() != null) {
+            net.minecraft.world.entity.player.Player source = victim instanceof net.minecraft.world.entity.player.Player ? (net.minecraft.world.entity.player.Player) victim : null;
+            double x = event.getEntity().getLocation().getX();
+            double y = event.getEntity().getLocation().getY();
+            double z = event.getEntity().getLocation().getZ();
+            net.minecraft.sounds.SoundEvent soundEffect = org.bukkit.craftbukkit.CraftSound.bukkitToMinecraft(event.getDeathSound());
+            net.minecraft.sounds.SoundSource soundCategory = net.minecraft.sounds.SoundSource.valueOf(event.getDeathSoundCategory().name());
+            victim.level().playSound(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch());
+        }
+    }
+    // Paper end
     /**
      * Server methods
      */