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Paper/Spigot-Server-Patches/0356-Improve-death-events.patch
Max Lee 4e30b91d4e Improve death events (#1362) 
* Improve death events

This adds the ability to cancel the events and to specify the sound.
2018-09-07 20:14:48 -04:00

417 Zeilen
20 KiB
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From b8c6e5d80cd3b21db5b3d9a031439d37143eb467 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 7a076f3e4..bddd66e79 100644
--- a/src/main/java/net/minecraft/server/CombatTracker.java
+++ b/src/main/java/net/minecraft/server/CombatTracker.java
@@ -175,6 +175,7 @@ public class CombatTracker {
this.h = null;
}
+ public 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 b0b49f4ff..d0dcce945 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1471,6 +1471,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
return false;
}
+ public 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);
@@ -2267,6 +2268,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
}
+ public void onKill(EntityLiving entityLiving) { this.b(entityLiving); } // Paper - OBFHELPER
public void b(EntityLiving entityliving) {}
protected boolean i(double d0, double d1, double d2) {
@@ -2965,6 +2967,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
return EnumPistonReaction.NORMAL;
}
+ public SoundCategory getDeathSoundCategory() { return bK();} // Paper - OBFHELPER
public SoundCategory bK() {
return SoundCategory.NEUTRAL;
}
diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java
index dca497072..454c1e7d0 100644
--- a/src/main/java/net/minecraft/server/EntityArmorStand.java
+++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
@@ -641,7 +641,8 @@ public class EntityArmorStand extends EntityLiving {
}
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/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 14637be49..dec4b442c 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -75,14 +75,14 @@ public abstract class EntityLiving extends Entity {
public float aR;
public EntityHuman killer;
public int lastDamageByPlayerTime; // Paper - public
- protected boolean aU;
+ protected boolean aU; protected void setDying(boolean dying) { this.aU = dying; } protected boolean isDying() { return this.aU; } // Paper - OBFHELPER
protected int ticksFarFromPlayer;
protected float aW;
protected float aX;
protected float aY;
protected float aZ;
protected float ba;
- protected int bb;
+ protected int bb; protected int getKillCount() { return this.bb; } // Paper - OBFHELPER
public float lastDamage;
protected boolean bd;
public float be;
@@ -117,6 +117,7 @@ public abstract class EntityLiving extends Entity {
public org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
public boolean collides = true;
public boolean canPickUpLoot;
+ public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
@Override
public float getBukkitYaw() {
@@ -970,13 +971,17 @@ public abstract class EntityLiving extends Entity {
if (this.getHealth() <= 0.0F) {
if (!this.e(damagesource)) {
- SoundEffect soundeffect = this.cf();
+ // Paper start - moved into CraftEventFactory event caller for cancellable death event
+ //SoundEffect soundeffect = this.cf();
- if (flag1 && soundeffect != null) {
- this.a(soundeffect, this.cq(), this.cr());
- }
+ //if (flag1 && soundeffect != null) {
+ // this.a(soundeffect, this.cq(), this.cr());
+ //}
+ 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);
@@ -1114,16 +1119,20 @@ public abstract class EntityLiving extends Entity {
Entity entity = damagesource.getEntity();
EntityLiving entityliving = this.ci();
- if (this.bb >= 0 && entityliving != null) {
- entityliving.a(this, this.bb, damagesource);
- }
+ // Paper start - move down to make death event cancellable
+ //if (this.bb >= 0 && entityliving != null) {
+ // entityliving.a(this, this.bb, damagesource);
+ //}
- if (entity != null) {
- entity.b(this);
- }
+ //if (entity != null) {
+ // entity.b(this);
+ //}
- this.aU = true;
- this.getCombatTracker().g();
+ //this.aU = true;
+ //this.getCombatTracker().g();
+
+ org.bukkit.event.entity.EntityDeathEvent deathEvent = null;
+ //Paper end
if (!this.world.isClientSide) {
int i = 0;
@@ -1136,15 +1145,32 @@ public abstract class EntityLiving extends Entity {
this.a(flag, i, damagesource);
// CraftBukkit start - Call death event
- CraftEventFactory.callEntityDeathEvent(this, this.drops);
+ deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper - cancellable death event
this.drops = new ArrayList<org.bukkit.inventory.ItemStack>();
} else {
- CraftEventFactory.callEntityDeathEvent(this);
+ deathEvent = CraftEventFactory.callEntityDeathEvent(this); // Paper - cancellable death event
// CraftBukkit end
}
}
- this.world.broadcastEntityEffect(this, (byte) 3);
+ // Paper start - cancellable death event
+ if (deathEvent == null || !deathEvent.isCancelled()) {
+ // triggers and stats got moved down
+ if (this.getKillCount() >= 0 && entityliving != null) {
+ entityliving.runKillTrigger(this, this.getKillCount(), damagesource);
+ }
+
+ if (entity != null) {
+ entity.onKill(this);
+ }
+
+ this.getCombatTracker().reset();
+ this.setDying(true);
+ this.world.broadcastEntityEffect(this, (byte) 3);
+ } else {
+ this.setHealth((float) deathEvent.getReviveHealth());
+ }
+ // Paper end
}
}
@@ -1198,6 +1224,7 @@ public abstract class EntityLiving extends Entity {
return SoundEffects.bX;
}
+ @Nullable public SoundEffect getDeathSoundEffect() { return cf();} // Paper - OBFHELPER
@Nullable
protected SoundEffect cf() {
return SoundEffects.bS;
@@ -1583,10 +1610,12 @@ public abstract class EntityLiving extends Entity {
}
+ public float getDeathSoundVolume() { return cq();} // Paper - OBFHELPER
protected float cq() {
return 1.0F;
}
+ public float getDeathSoundPitch() { return cr();} // Paper - OBFHELPER
protected float cr() {
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 4ff505cfa..6afb6cf7b 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -79,6 +79,10 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
}
// Paper end
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;
@@ -436,9 +440,10 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
public void die(DamageSource damagesource) {
boolean flag = this.world.getGameRules().getBoolean("showDeathMessages");
- this.playerConnection.sendPacket(new PacketPlayOutCombatEvent(this.getCombatTracker(), PacketPlayOutCombatEvent.EnumCombatEventType.ENTITY_DIED, flag));
+ //this.playerConnection.sendPacket(new PacketPlayOutCombatEvent(this.getCombatTracker(), PacketPlayOutCombatEvent.EnumCombatEventType.ENTITY_DIED, flag)); // Paper - moved down for cancellable death event
// CraftBukkit start - fire PlayerDeathEvent
if (this.dead) {
+ this.playerConnection.sendPacket(new PacketPlayOutCombatEvent(this.getCombatTracker(), PacketPlayOutCombatEvent.EnumCombatEventType.ENTITY_DIED, flag)); // Paper - moved down for cancellable death event
return;
}
java.util.List<org.bukkit.inventory.ItemStack> loot = new java.util.ArrayList<org.bukkit.inventory.ItemStack>(this.inventory.getSize());
@@ -456,6 +461,16 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
String deathmessage = chatmessage.toPlainText();
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;
+ }
+ this.playerConnection.sendPacket(new PacketPlayOutCombatEvent(this.getCombatTracker(), PacketPlayOutCombatEvent.EnumCombatEventType.ENTITY_DIED, flag));
+ // Paper end
String deathMessage = event.getDeathMessage();
@@ -608,8 +623,17 @@ 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/net/minecraft/server/RegistryMaterials.java b/src/main/java/net/minecraft/server/RegistryMaterials.java
index d26abb419..aaedbc3b7 100644
--- a/src/main/java/net/minecraft/server/RegistryMaterials.java
+++ b/src/main/java/net/minecraft/server/RegistryMaterials.java
@@ -29,6 +29,7 @@ public class RegistryMaterials<K, V> extends RegistrySimple<K, V> implements Reg
return super.get(k0);
}
+ @Nullable public K getByValue(V value) { return this.b(value); } // Paper - OBFHELPER
@Nullable
public K b(V v0) {
return this.b.get(v0);
diff --git a/src/main/java/net/minecraft/server/SoundEffect.java b/src/main/java/net/minecraft/server/SoundEffect.java
index ec37e237f..8e0da7bd7 100644
--- a/src/main/java/net/minecraft/server/SoundEffect.java
+++ b/src/main/java/net/minecraft/server/SoundEffect.java
@@ -2,7 +2,7 @@ package net.minecraft.server;
public class SoundEffect {
- public static final RegistryMaterials<MinecraftKey, SoundEffect> a = new RegistryMaterials();
+ public static final RegistryMaterials<MinecraftKey, SoundEffect> a = new RegistryMaterials(); public static RegistryMaterials<MinecraftKey, SoundEffect> getRegistry() { return a; }// Paper - OBFHELPER
private final MinecraftKey b;
private static int c;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftSound.java b/src/main/java/org/bukkit/craftbukkit/CraftSound.java
index 8871c6f3a..84f4cb91e 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftSound.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftSound.java
@@ -560,6 +560,22 @@ 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 = SoundEffect.getRegistry().getByValue(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 5f480ac06..d59d86efc 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1612,7 +1612,15 @@ 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<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 cce4acc0b..f1a3ca950 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -392,9 +392,16 @@ 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()) {
@@ -410,8 +417,15 @@ 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();
@@ -432,6 +446,31 @@ 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());
+ SoundEffect soundEffect = victim.getDeathSoundEffect();
+ event.setDeathSound(soundEffect != null ? org.bukkit.craftbukkit.CraftSound.getSoundByEffect(soundEffect) : null);
+ event.setDeathSoundCategory(org.bukkit.SoundCategory.valueOf(victim.getDeathSoundCategory().name()));
+ event.setDeathSoundVolume(victim.getDeathSoundVolume());
+ event.setDeathSoundPitch(victim.getDeathSoundPitch());
+ }
+
+ // 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();
+ SoundEffect soundEffect = org.bukkit.craftbukkit.CraftSound.getSoundEffect(event.getDeathSound());
+ SoundCategory soundCategory = SoundCategory.valueOf(event.getDeathSoundCategory().name());
+ victim.world.sendSoundEffect(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch());
+ }
+ }
+ // Paper end
/**
* Server methods
*/
--
2.18.0.windows.1
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