From 7c2386886de0581784c8c667ab82ae5eba08aba7 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 63bdb96db8..96dd1a7fa4 100644 --- a/src/main/java/net/minecraft/server/CombatTracker.java +++ b/src/main/java/net/minecraft/server/CombatTracker.java @@ -163,6 +163,7 @@ public class CombatTracker { this.h = null; } + public void reset() { this.g(); } // Paper - OBFHELPER public void g() { int i = this.f ? 300 : 100; if (this.g && (!this.b.isAlive() || this.b.ticksLived - this.c > i)) { diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java index bcd7af059e..f6c43bab46 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -1538,6 +1538,7 @@ 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); @@ -2407,6 +2408,7 @@ 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 boolean i(double d0, double d1, double d2) { @@ -3077,6 +3079,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke return EnumPistonReaction.NORMAL; } + public SoundCategory getDeathSoundCategory() { return bV();} // Paper - OBFHELPER public SoundCategory bV() { return SoundCategory.NEUTRAL; } diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java index 35afffedef..e8e7413748 100644 --- a/src/main/java/net/minecraft/server/EntityArmorStand.java +++ b/src/main/java/net/minecraft/server/EntityArmorStand.java @@ -629,7 +629,8 @@ 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 1328f88898..13dd555491 100644 --- a/src/main/java/net/minecraft/server/EntityLiving.java +++ b/src/main/java/net/minecraft/server/EntityLiving.java @@ -76,14 +76,14 @@ public abstract class EntityLiving extends Entity { public float aU; public EntityHuman killer; public int lastDamageByPlayerTime; // Paper - public - protected boolean aX; + protected boolean aX; protected void setDying(boolean dying) { this.aX = dying; } protected boolean isDying() { return this.aX; } // Paper - OBFHELPER protected int ticksFarFromPlayer; protected float aZ; protected float ba; protected float bb; protected float bc; protected float bd; - protected int be; + protected int be; protected int getKillCount() { return this.be; } // Paper - OBFHELPER public float lastDamage; protected boolean bg; public float bh; @@ -124,6 +124,7 @@ 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() { @@ -1071,13 +1072,17 @@ public abstract class EntityLiving extends Entity { if (this.getHealth() <= 0.0F) { if (!this.e(damagesource)) { - SoundEffect soundeffect = this.cs(); + // Paper start - moved into CraftEventFactory event caller for cancellable death event + //SoundEffect soundeffect = this.cs(); - if (flag1 && soundeffect != null) { - this.a(soundeffect, this.cD(), this.cE()); - } + //if (flag1 && soundeffect != null) { + // this.a(soundeffect, this.cD(), this.cE()); + //} + 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); @@ -1205,16 +1210,20 @@ public abstract class EntityLiving extends Entity { Entity entity = damagesource.getEntity(); EntityLiving entityliving = this.cv(); - if (this.be >= 0 && entityliving != null) { - entityliving.a(this, this.be, damagesource); - } + // Paper start - move down to make death event cancellable + //if (this.be >= 0 && entityliving != null) { + // entityliving.a(this, this.be, damagesource); + //} - if (entity != null) { - entity.b(this); - } + //if (entity != null) { + // entity.b(this); + //} - this.aX = true; - this.getCombatTracker().g(); + this.aX = true; // Paper - Always set at start, unset later if cancelled - GH-1432 + //this.getCombatTracker().g(); + + org.bukkit.event.entity.EntityDeathEvent deathEvent = null; + // Paper end if (!this.world.isClientSide) { int i = 0; @@ -1227,15 +1236,33 @@ 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(); } 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.setDying(false); // Paper - reset if cancelled + this.setHealth((float) deathEvent.getReviveHealth()); + } + // Paper end } } @@ -1289,6 +1316,7 @@ public abstract class EntityLiving extends Entity { return SoundEffects.ENTITY_GENERIC_HURT; } + @Nullable public SoundEffect getDeathSoundEffect() { return cs();} // Paper - OBFHELPER @Nullable protected SoundEffect cs() { return SoundEffects.ENTITY_GENERIC_DEATH; @@ -1709,10 +1737,12 @@ public abstract class EntityLiving extends Entity { } + public float getDeathSoundVolume() { return cD();} // Paper - OBFHELPER protected float cD() { return 1.0F; } + public float getDeathSoundPitch() { return cE();} // Paper - OBFHELPER protected float cE() { 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 68f5842cfe..5ab4e01edf 100644 --- a/src/main/java/net/minecraft/server/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/EntityPlayer.java @@ -75,6 +75,10 @@ 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; @@ -508,6 +512,15 @@ 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 String deathMessage = event.getDeathMessage(); @@ -635,8 +648,17 @@ 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 17fab031b4..ee8219e3ba 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftSound.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftSound.java @@ -674,6 +674,22 @@ 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 44ee86ceec..bfb2f1a13c 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 a553c20657..12e2c0f6e1 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -426,9 +426,16 @@ 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()) { @@ -444,8 +451,15 @@ 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(); @@ -466,6 +480,31 @@ 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 */ -- 2.19.0