From cbdfe763326cfd3b4cf02eedd82e10ffa0f841d4 Mon Sep 17 00:00:00 2001 From: Phoenix616 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 20db76abd..a148cd437 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 784520342..ef7f0213b 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -1460,6 +1460,7 @@ 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); @@ -2341,6 +2342,7 @@ 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 i(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 7031dd0e4..f6dc96434 100644 --- a/src/main/java/net/minecraft/server/EntityArmorStand.java +++ b/src/main/java/net/minecraft/server/EntityArmorStand.java @@ -675,7 +675,8 @@ 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/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java index 064703afe..bd8385cd5 100644 --- a/src/main/java/net/minecraft/server/EntityLiving.java +++ b/src/main/java/net/minecraft/server/EntityLiving.java @@ -77,7 +77,7 @@ public abstract class EntityLiving extends Entity { public float aN; public float aO; public EntityHuman killer; - protected int lastDamageByPlayerTime; + public int lastDamageByPlayerTime; // Paper - public protected boolean killed; protected int ticksFarFromPlayer; protected float aT; @@ -85,7 +85,7 @@ public abstract class EntityLiving extends Entity { protected float aV; protected float aW; protected float aX; - protected int aY; + protected int aY; protected int getKillCount() { return this.aY; } // Paper - OBFHELPER public float lastDamage; protected boolean jumping; public float bb; @@ -128,6 +128,7 @@ 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() { @@ -1179,13 +1180,17 @@ 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.cU()); - } + //if (flag1 && soundeffect != null) { + // this.a(soundeffect, this.getSoundVolume(), this.cU()); + //} + 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); @@ -1323,22 +1328,40 @@ public abstract class EntityLiving extends Entity { Entity entity = damagesource.getEntity(); EntityLiving entityliving = this.getKillingEntity(); - if (this.aY >= 0 && entityliving != null) { - entityliving.a(this, this.aY, damagesource); - } - - if (entity != null) { - entity.b(this); - } - - if (this.isSleeping()) { - this.dy(); - } - + // Paper start - move down to make death event cancellable + //if (this.aY >= 0 && entityliving != null) { + // entityliving.a(this, this.aY, damagesource); + //} + // + //if (entity != null) { + // entity.b(this); + //} + // + //if (this.isSleeping()) { + // this.dy(); + //} + // 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.dy(); + } + this.getCombatTracker().reset(); + } else { + this.killed = false; + this.setHealth((float) deathEvent.getReviveHealth()); + } + // Paper end + boolean flag = false; if (entityliving instanceof EntityWither) { @@ -1365,7 +1388,8 @@ public abstract class EntityLiving extends Entity { } } - protected void d(DamageSource damagesource) { + protected org.bukkit.event.entity.EntityDeathEvent processDeath(DamageSource damagesource) { return d(damagesource); } + protected org.bukkit.event.entity.EntityDeathEvent d(DamageSource damagesource) { // Paper Entity entity = damagesource.getEntity(); int i; @@ -1376,19 +1400,20 @@ public abstract class EntityLiving extends Entity { } boolean flag = this.lastDamageByPlayerTime > 0; - + org.bukkit.event.entity.EntityDeathEvent deathEvent = null; // Paper if (this.isDropExperience() && this.world.getGameRules().getBoolean("doMobLoot")) { this.a(damagesource, flag); this.dropDeathLoot(damagesource, i, flag); // CraftBukkit start - Call death event - CraftEventFactory.callEntityDeathEvent(this, this.drops); - this.drops = new ArrayList(); + deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper + if (!deathEvent.isCancelled()) this.drops = new ArrayList(); // Paper } else { - CraftEventFactory.callEntityDeathEvent(this); + deathEvent = CraftEventFactory.callEntityDeathEvent(this); // Paper // CraftBukkit end } - this.cE(); + if (!deathEvent.isCancelled()) this.cE(); // Paper + return deathEvent; // Paper } protected void cE() {} @@ -1895,6 +1920,7 @@ public abstract class EntityLiving extends Entity { return 1.0F; } + public float getSoundPitch() { return cU();} // Paper - OBFHELPER protected float cU() { 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 634c30d93..332515128 100644 --- a/src/main/java/net/minecraft/server/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/EntityPlayer.java @@ -74,6 +74,10 @@ 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; @@ -524,6 +528,15 @@ 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 73cb64e09..9f317ff2e 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftSound.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftSound.java @@ -806,6 +806,22 @@ 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 d505af188..5f752784d 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -1711,7 +1711,15 @@ 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 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 50444ed94..46c05c398 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -706,9 +706,16 @@ public class CraftEventFactory { public static EntityDeathEvent callEntityDeathEvent(EntityLiving victim, List 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()) { @@ -724,8 +731,15 @@ 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(); @@ -746,6 +760,31 @@ 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 */ -- 2.21.0