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Paper/Spigot-Server-Patches/0290-Improve-death-events.patch
Aikar 842e040c19
Updated Upstream (Bukkit/CraftBukkit/Spigot) 
Upstream has released updates that appears 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:
220bc594 #486: Add method to get player's attack cooldown
21853d39 SPIGOT-5681: Increase max plugin channel size
5b972adc Improve build process
b55e58d9 Note which custom generator is missing required method

CraftBukkit Changes:
893ad93b #650: Add method to get player's attack cooldown
ef706b06 #655: Added support for the VM tag jansi.passthrough when processing messages sent to a ColouredConsoleSender.
e0cfb347 SPIGOT-5689: Fireball.setDirection increases velocity too much
94cb030f SPIGOT-5673: swingHand API does not show to self
b331a055 SPIGOT-5680: isChunkGenerated creates empty region files
e1335932 Improve build process
a8ec1d60 Add a couple of method null checks to CraftWorld
ce66f693 Misc checkstyle fixes
8bd0e9ab SPIGOT-5669: Fix Beehive.isSedated

Spigot Changes:
2040c4c4 SPIGOT-5677, MC-114796: Fix portals generating outside world border
ab8f6b5a Rebuild patches
e7dc2f53 Rebuild patches
2020-04-27 03:34:45 -04:00

452 Zeilen
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Originalformat Blame Verlauf

From 0266ed2e47f1d4c2683da3b22d2512359e6239a9 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 6daa400d27..38fe29f8a2 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 35d22ec027..09bb8676c3 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1503,6 +1503,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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);
@@ -2417,6 +2418,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
this.fallDistance = 0.0F;
}
+ public void onKill(EntityLiving entityLiving) { this.b(entityLiving); } // Paper - OBFHELPER
public void b(EntityLiving entityliving) {}
protected void k(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 42b9a339e9..8ad131e4fc 100644
--- a/src/main/java/net/minecraft/server/EntityArmorStand.java
+++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
@@ -701,7 +701,8 @@ 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 2be6c7bde9..82a32d5dbf 100644
--- a/src/main/java/net/minecraft/server/EntityFox.java
+++ b/src/main/java/net/minecraft/server/EntityFox.java
@@ -571,15 +571,25 @@ 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.a);
}
- 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 80717ad9ac..53aac5bccd 100644
--- a/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java
+++ b/src/main/java/net/minecraft/server/EntityHorseChestedAbstract.java
@@ -55,11 +55,19 @@ 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 b(NBTTagCompound nbttagcompound) {
super.b(nbttagcompound);
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 93625dea9c..3d56682719 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -89,7 +89,7 @@ public abstract class EntityLiving extends Entity {
protected float aT;
protected float aU;
protected float aV;
- protected int aW;
+ protected int aW; protected int getKillCount() { return this.aW; } // Paper - OBFHELPER
public float lastDamage;
protected boolean jumping;
public float aZ;
@@ -131,6 +131,7 @@ public abstract class EntityLiving extends Entity {
public boolean collides = true;
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() {
@@ -1139,13 +1140,17 @@ public abstract class EntityLiving extends Entity {
if (this.getHealth() <= 0.0F) {
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.a(soundeffect, this.getSoundVolume(), this.dn());
- }
+// if (flag1 && soundeffect != null) {
+// this.a(soundeffect, this.getSoundVolume(), this.dn());
+// }
+ 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);
@@ -1283,6 +1288,7 @@ public abstract class EntityLiving extends Entity {
Entity entity = damagesource.getEntity();
EntityLiving entityliving = this.getKillingEntity();
+ /* // Paper - move down to make death event cancellable
if (this.aW >= 0 && entityliving != null) {
entityliving.a(this, this.aW, damagesource);
}
@@ -1294,16 +1300,36 @@ public abstract class EntityLiving extends Entity {
if (this.isSleeping()) {
this.entityWakeup();
}
+ */ // Paper
this.killed = true;
- this.getCombatTracker().g();
+ //this.getCombatTracker().g();
if (!this.world.isClientSide) {
- this.d(damagesource);
+ 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 (entity != null) {
+ entity.onKill(this);
+ }
+ if (this.isSleeping()) {
+ this.entityWakeup();
+ }
+ this.getCombatTracker().reset();
+ } 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
}
}
@@ -1311,7 +1337,7 @@ 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 = new BlockPosition(this);
IBlockData iblockdata = Blocks.WITHER_ROSE.getBlockData();
@@ -1332,7 +1358,8 @@ 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;
@@ -1345,22 +1372,26 @@ public abstract class EntityLiving extends Entity {
boolean flag = this.lastDamageByPlayerTime > 0;
this.dropInventory(); // CraftBukkit - from below
+ org.bukkit.event.entity.EntityDeathEvent deathEvent; // Paper
if (this.isDropExperience() && this.world.getGameRules().getBoolean(GameRules.DO_MOB_LOOT)) {
this.a(damagesource, flag);
this.dropDeathLoot(damagesource, i, flag);
// CraftBukkit start - Call death event
- CraftEventFactory.callEntityDeathEvent(this, this.drops);
- this.drops = new ArrayList<org.bukkit.inventory.ItemStack>();
+ deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper
} else {
- CraftEventFactory.callEntityDeathEvent(this);
+ deathEvent = CraftEventFactory.callEntityDeathEvent(this); // Paper
// CraftBukkit end
}
+ this.postDeathDropItems(deathEvent); // Paper
+ this.drops = new ArrayList<>(); // Paper
// 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() {
@@ -1439,6 +1470,7 @@ 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;
@@ -1924,10 +1956,12 @@ 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 dn();} // Paper - OBFHELPER
protected float dn() {
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 f35d233406..f43584f0e3 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -76,6 +76,10 @@ 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;
@@ -539,6 +543,15 @@ 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) {
@@ -677,8 +690,17 @@ 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 90fdf89c81..b761a41dcd 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftSound.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftSound.java
@@ -821,6 +821,22 @@ 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 a874ae6758..a8f46ceb4b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1698,7 +1698,15 @@ 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 80e0afad50..f14689bc02 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -749,9 +749,16 @@ 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()) {
@@ -767,8 +774,15 @@ 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();
@@ -785,6 +799,31 @@ 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.sendSoundEffect(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch());
+ }
+ }
+ // Paper end
/**
* Server methods
*/
--
2.26.2
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