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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.
diff --git a/src/main/java/net/minecraft/server/CombatTracker.java b/src/main/java/net/minecraft/server/CombatTracker.java
index 6281f7900afab3ef1c9ba3c034b91cbfa1900f50..7f3401d5d7878e4a0f407e92bf110dbe7c7868a6 100644
--- a/src/main/java/net/minecraft/server/CombatTracker.java
+++ b/src/main/java/net/minecraft/server/CombatTracker.java
@@ -192,6 +192,7 @@ public class CombatTracker {
this.h = null;
}
+ public final void reset() { this.g(); } // Paper - OBFHELPER
public void g() {
int i = this.f ? 300 : 100;
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 1a05de09824360c451a4b0354d1a8f486432ec7b..f3b69a5eb5d15738d7061e10643ace23bd3718c4 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1453,6 +1453,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
// CraftBukkit end
+ public final void runKillTrigger(Entity entity, int kills, DamageSource damageSource) { this.a(entity, kills, damageSource); } // Paper - OBFHELPER
public void a(Entity entity, int i, DamageSource damagesource) {
if (entity instanceof EntityPlayer) {
CriterionTriggers.c.a((EntityPlayer) entity, this, damagesource);
@@ -2336,6 +2337,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
this.fallDistance = 0.0F;
}
+ public final void onKill(WorldServer worldserver, EntityLiving entityLiving) { this.a(worldserver, entityLiving); } // Paper - OBFHELPER
public void a(WorldServer worldserver, EntityLiving entityliving) {}
protected void l(double d0, double d1, double d2) {
diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java
index 4a4c2a7b117428137bed65ed66f207d693b90c4b..587e8e582dfe9c3127ca2b298c4e1db79c2d6c8e 100644
--- a/src/main/java/net/minecraft/server/EntityArmorStand.java
+++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
@@ -703,7 +703,8 @@ public class EntityArmorStand extends EntityLiving {
@Override
public void killEntity() {
- org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, drops); // CraftBukkit - call event
+ org.bukkit.event.entity.EntityDeathEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, drops); // CraftBukkit - call event // Paper - make cancellable
+ if (event.isCancelled()) return; // Paper - make cancellable
this.die();
}
diff --git a/src/main/java/net/minecraft/server/EntityFox.java b/src/main/java/net/minecraft/server/EntityFox.java
index 83fa99b1cf784eb7f30b14f9f0743cbab7136563..0ac0364ffeb81ac3f379848f6e1afae641658c73 100644
--- a/src/main/java/net/minecraft/server/EntityFox.java
+++ b/src/main/java/net/minecraft/server/EntityFox.java
@@ -577,15 +577,25 @@ public class EntityFox extends EntityAnimal {
}
@Override
- protected void d(DamageSource damagesource) {
- ItemStack itemstack = this.getEquipment(EnumItemSlot.MAINHAND);
+ protected org.bukkit.event.entity.EntityDeathEvent d(DamageSource damagesource) { // Paper
+ ItemStack itemstack = this.getEquipment(EnumItemSlot.MAINHAND).cloneItemStack(); // Paper
+
+ // Paper start - Cancellable death event
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = super.d(damagesource);
+
+ // Below is code to drop
+
+ if (deathEvent == null || deathEvent.isCancelled()) {
+ return deathEvent;
+ }
+ // Paper end
if (!itemstack.isEmpty()) {
this.a(itemstack);
this.setSlot(EnumItemSlot.MAINHAND, ItemStack.b);
}
- super.d(damagesource);
+ return deathEvent; // Paper
}
public static boolean a(EntityFox entityfox, EntityLiving entityliving) {
diff --git a/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java b/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java
index 29d1b9bb4e481b6d6fb7185d9adf17f5ec07d4a1..c14d722e9b1ed61d2878ca752797871b6de39ac9 100644
--- a/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java
+++ b/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java
@@ -50,11 +50,19 @@ public abstract class EntityHorseChestedAbstract extends EntityHorseAbstract {
this.a((IMaterial) Blocks.CHEST);
}
- this.setCarryingChest(false);
+ //this.setCarryingChest(false); // Paper - moved to post death logic
}
}
+ // Paper start
+ protected void postDeathDropItems(org.bukkit.event.entity.EntityDeathEvent event) {
+ if (this.isCarryingChest() && (event == null || !event.isCancelled())) {
+ this.setCarryingChest(false);
+ }
+ }
+ // Paper end
+
@Override
public void saveData(NBTTagCompound nbttagcompound) {
super.saveData(nbttagcompound);
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 5ebd2d25cc52de3f1a091f0620d6b46be4fca784..b4b45d93188494ae0639ae4eb9c764a48fe21607 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -95,7 +95,7 @@ public abstract class EntityLiving extends Entity {
protected float aL;
protected float aM;
protected float aN;
- protected int aO;
+ protected int aO;protected int getKillCount() { return this.aO; } // Paper - OBFHELPER
public float lastDamage;
protected boolean jumping;
public float aR;
@@ -139,6 +139,7 @@ public abstract class EntityLiving extends Entity {
public Set<UUID> collidableExemptions = new HashSet<>();
public boolean canPickUpLoot;
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() {
@@ -1248,13 +1249,17 @@ public abstract class EntityLiving extends Entity {
if (knockbackCancelled) this.world.broadcastEntityEffect(this, (byte) 2); // Paper - Disable explosion knockback
if (this.dk()) {
if (!this.f(damagesource)) {
- SoundEffect soundeffect = this.getSoundDeath();
+ // Paper start - moved into CraftEventFactory event caller for cancellable death event
+ //SoundEffect soundeffect = this.getSoundDeath();
- if (flag1 && soundeffect != null) {
- this.playSound(soundeffect, this.getSoundVolume(), this.dG());
- }
+// if (flag1 && soundeffect != null) {
+// this.playSound(soundeffect, this.getSoundVolume(), this.dG());
+// }
+ this.silentDeath = !flag1; // mark entity as dying silently
+ // Paper end
this.die(damagesource);
+ this.silentDeath = false; // Paper - cancellable death event - reset to default
}
} else if (flag1) {
this.c(damagesource);
@@ -1393,6 +1398,7 @@ public abstract class EntityLiving extends Entity {
Entity entity = damagesource.getEntity();
EntityLiving entityliving = this.getKillingEntity();
+ /* // Paper - move down to make death event cancellable - this is the runKillTrigger below
if (this.aO >= 0 && entityliving != null) {
entityliving.a(this, this.aO, damagesource);
}
@@ -1400,20 +1406,40 @@ public abstract class EntityLiving extends Entity {
if (this.isSleeping()) {
this.entityWakeup();
}
+ */ // Paper
this.killed = true;
- this.getCombatTracker().g();
+ // this.getCombatTracker().g(); // Paper - moved into if below as .reset()
if (this.world instanceof WorldServer) {
if (entity != null) {
- entity.a((WorldServer) this.world, this);
+ // entity.a((WorldServer) this.world, this); // Paper - move below into if for onKill
}
- this.d(damagesource);
+ // Paper start
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = this.d(damagesource);
+ if (deathEvent == null || !deathEvent.isCancelled()) {
+ if (this.getKillCount() >= 0 && entityliving != null) {
+ entityliving.runKillTrigger(this, this.getKillCount(), damagesource);
+ }
+ if (this.isSleeping()) {
+ this.entityWakeup();
+ }
+ this.getCombatTracker().reset();
+ if (entity != null) {
+ entity.onKill((WorldServer) this.world, this);
+ }
+ } else {
+ this.killed = false;
+ this.setHealth((float) deathEvent.getReviveHealth());
+ }
+ // Paper end
this.f(entityliving);
}
+ if (this.killed) { // Paper
this.world.broadcastEntityEffect(this, (byte) 3);
this.setPose(EntityPose.DYING);
+ } // Paper
}
}
@@ -1421,7 +1447,7 @@ public abstract class EntityLiving extends Entity {
if (!this.world.isClientSide) {
boolean flag = false;
- if (entityliving instanceof EntityWither) {
+ if (this.killed && entityliving instanceof EntityWither) { // Paper
if (this.world.getGameRules().getBoolean(GameRules.MOB_GRIEFING)) {
BlockPosition blockposition = this.getChunkCoordinates();
IBlockData iblockdata = Blocks.WITHER_ROSE.getBlockData();
@@ -1442,7 +1468,8 @@ public abstract class EntityLiving extends Entity {
}
}
- protected void d(DamageSource damagesource) {
+ protected org.bukkit.event.entity.EntityDeathEvent processDeath(DamageSource damagesource) { return d(damagesource); } // Paper - OBFHELPER
+ protected org.bukkit.event.entity.EntityDeathEvent d(DamageSource damagesource) { // Paper
Entity entity = damagesource.getEntity();
int i;
@@ -1460,15 +1487,18 @@ public abstract class EntityLiving extends Entity {
this.dropDeathLoot(damagesource, i, flag);
}
// CraftBukkit start - Call death event
- CraftEventFactory.callEntityDeathEvent(this, this.drops);
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper
+ this.postDeathDropItems(deathEvent); // Paper
this.drops = new ArrayList<>();
// CraftBukkit end
// this.dropInventory();// CraftBukkit - moved up
this.dropExperience();
+ return deathEvent; // Paper
}
protected void dropInventory() {}
+ 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
// CraftBukkit start
public int getExpReward() {
@@ -1553,6 +1583,7 @@ public abstract class EntityLiving extends Entity {
return SoundEffects.ENTITY_GENERIC_HURT;
}
+ public final SoundEffect getDeathSoundEffect() { return this.getSoundDeath(); } // Paper - OBFHELPER
@Nullable
protected SoundEffect getSoundDeath() {
return SoundEffects.ENTITY_GENERIC_DEATH;
@@ -2072,10 +2103,12 @@ public abstract class EntityLiving extends Entity {
}
+ public final float getDeathSoundVolume() { return this.getSoundVolume(); } // Paper - OBFHELPER
protected float getSoundVolume() {
return 1.0F;
}
+ public float getSoundPitch() { return dG();} // Paper - OBFHELPER
protected float dG() {
return this.isBaby() ? (this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.5F : (this.random.nextFloat() - this.random.nextFloat()) * 0.2F + 1.0F;
}
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index fa211442594c72c0d9b2fddc85472aa9939d6d1e..32aba006312ef30401e09cf05325dd1fa82bfed0 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -82,6 +82,10 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
public int ping;
public boolean viewingCredits;
private int containerUpdateDelay; // Paper
+ // Paper start - cancellable death event
+ public boolean queueHealthUpdatePacket = false;
+ public net.minecraft.server.PacketPlayOutUpdateHealth queuedHealthUpdatePacket;
+ // Paper end
// CraftBukkit start
public String displayName;
@@ -583,6 +587,15 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
String deathmessage = defaultMessage.getString();
org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, loot, deathmessage, keepInventory);
+ // 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;
+ }
+ // Paper end
// SPIGOT-943 - only call if they have an inventory open
if (this.activeContainer != this.defaultContainer) {
@@ -734,8 +747,17 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
}
}
}
-
- return super.damageEntity(damagesource, f);
+ // Paper start - cancellable death events
+ //return super.damageEntity(damagesource, f);
+ this.queueHealthUpdatePacket = true;
+ boolean damaged = super.damageEntity(damagesource, f);
+ this.queueHealthUpdatePacket = false;
+ if (this.queuedHealthUpdatePacket != null) {
+ this.playerConnection.sendPacket(this.queuedHealthUpdatePacket);
+ this.queuedHealthUpdatePacket = null;
+ }
+ return damaged;
+ // Paper end
}
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftSound.java b/src/main/java/org/bukkit/craftbukkit/CraftSound.java
index 9a2e6bedfc50fba10f37c01d825f80415bfb69d3..a4afe638515471159d505a5e402a934206d8c1f5 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftSound.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftSound.java
@@ -1003,6 +1003,22 @@ public enum CraftSound {
WEATHER_RAIN_ABOVE("weather.rain.above");
private final String minecraftKey;
+ // Paper start - cancellable death event
+ public static CraftSound getBySoundEffect(final SoundEffect effect) {
+ MinecraftKey key = IRegistry.SOUND_EVENT.getKey(effect);
+ Preconditions.checkArgument(key != null, "Key for sound effect %s not found?", effect.toString());
+
+ return valueOf(key.getKey().replace('.', '_').toUpperCase(java.util.Locale.ENGLISH));
+ }
+
+ public static Sound getSoundByEffect(final SoundEffect effect) {
+ return Sound.valueOf(getBySoundEffect(effect).name());
+ }
+
+ public static SoundEffect getSoundEffect(final Sound sound) {
+ return getSoundEffect(getSound(sound));
+ }
+ // Paper end
CraftSound(String minecraftKey) {
this.minecraftKey = minecraftKey;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index b90b35c08cdc9bb44aaf9f4824289fd0824c937f..28a04cb8a90ad82b86f658ad17675ab58f7e8d41 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1761,7 +1761,15 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
}
public void sendHealthUpdate() {
- getHandle().playerConnection.sendPacket(new PacketPlayOutUpdateHealth(getScaledHealth(), getHandle().getFoodData().getFoodLevel(), getHandle().getFoodData().getSaturationLevel()));
+ // Paper start - cancellable death event
+ //getHandle().playerConnection.sendPacket(new PacketPlayOutUpdateHealth(getScaledHealth(), getHandle().getFoodData().getFoodLevel(), getHandle().getFoodData().getSaturationLevel()));
+ PacketPlayOutUpdateHealth packet = new PacketPlayOutUpdateHealth(getScaledHealth(), getHandle().getFoodData().getFoodLevel(), getHandle().getFoodData().getSaturationLevel());
+ if (this.getHandle().queueHealthUpdatePacket) {
+ this.getHandle().queuedHealthUpdatePacket = packet;
+ } else {
+ this.getHandle().playerConnection.sendPacket(packet);
+ }
+ // Paper end
}
public void injectScaledMaxHealth(Collection<AttributeModifiable> 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 c40004cc3a9583c9ece058ff8eb059731385c415..be7e98dc6f8faf4ebfd24df035ade809a3e4c918 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -788,9 +788,16 @@ public class CraftEventFactory {
public static EntityDeathEvent callEntityDeathEvent(EntityLiving victim, List<org.bukkit.inventory.ItemStack> drops) {
CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
+ 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()) {
@@ -806,8 +813,15 @@ public class CraftEventFactory {
CraftPlayer entity = victim.getBukkitEntity();
PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage);
event.setKeepInventory(keepInventory);
+ 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();
@@ -824,6 +838,31 @@ public class CraftEventFactory {
return event;
}
+ // Paper start - helper methods for making death event cancellable
+ // Add information to death event
+ private static void populateFields(EntityLiving victim, EntityDeathEvent event) {
+ event.setReviveHealth(event.getEntity().getAttribute(org.bukkit.attribute.Attribute.GENERIC_MAX_HEALTH).getValue());
+ event.setShouldPlayDeathSound(!victim.silentDeath && !victim.isSilent());
+ net.minecraft.server.SoundEffect soundEffect = victim.getDeathSoundEffect();
+ event.setDeathSound(soundEffect != null ? org.bukkit.craftbukkit.CraftSound.getSoundByEffect(soundEffect) : null);
+ event.setDeathSoundCategory(org.bukkit.SoundCategory.valueOf(victim.getSoundCategory().name()));
+ event.setDeathSoundVolume(victim.getDeathSoundVolume());
+ event.setDeathSoundPitch(victim.getSoundPitch());
+ }
+
+ // Play death sound manually
+ private static void playDeathSound(EntityLiving victim, EntityDeathEvent event) {
+ if (event.shouldPlayDeathSound() && event.getDeathSound() != null && event.getDeathSoundCategory() != null) {
+ EntityHuman source = victim instanceof EntityHuman ? (EntityHuman) victim : null;
+ double x = event.getEntity().getLocation().getX();
+ double y = event.getEntity().getLocation().getY();
+ double z = event.getEntity().getLocation().getZ();
+ net.minecraft.server.SoundEffect soundEffect = org.bukkit.craftbukkit.CraftSound.getSoundEffect(event.getDeathSound());
+ net.minecraft.server.SoundCategory soundCategory = net.minecraft.server.SoundCategory.valueOf(event.getDeathSoundCategory().name());
+ victim.world.playSound(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch());
+ }
+ }
+ // Paper end
/**
* Server methods
*/
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