From 0000000000000000000000000000000000000000 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 0790d45e3c8ac68c280b9378d93061b48b045639..a8054a599e3eb502e7bbce903b5683987f95fb66 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 b2cccdc9f2f243cd3fb1283ade0280b2acb0f772..4923fe299e7f057d5d70d346e83e746185eafdd3 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -1452,6 +1452,7 @@ 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); @@ -2351,6 +2352,7 @@ 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 8021d06b7765ad00abdbd8b77c37f7a80cb15803..7a061f1f072f57042bb32ff187b0f916545e2e48 100644 --- a/src/main/java/net/minecraft/server/EntityArmorStand.java +++ b/src/main/java/net/minecraft/server/EntityArmorStand.java @@ -711,7 +711,8 @@ 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 a7bbf21e9736a0da38f95d93b013097b1e745306..56c119e8d11c5ffb1f90ac4249bce434b3e78884 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 09d076db37507b17797635df232a568752c97584..3bcebb89c9f9a5243d1d215a47d7d5e64d2529b2 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 9f08c6dd5e4c6859f9e8017eb1d0f388f6aba0d3..0b05588d9ad01c10edf1ca12c303207ab6069c0a 100644 --- a/src/main/java/net/minecraft/server/EntityLiving.java +++ b/src/main/java/net/minecraft/server/EntityLiving.java @@ -96,7 +96,7 @@ 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; @@ -140,6 +140,7 @@ public abstract class EntityLiving extends Entity { public Set 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() { @@ -1255,13 +1256,17 @@ public abstract class EntityLiving extends Entity { if (knockbackCancelled) this.world.broadcastEntityEffect(this, (byte) 2); // Paper - Disable explosion knockback if (this.dl()) { 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.dH()); - } +// if (flag1 && soundeffect != null) { +// this.playSound(soundeffect, this.getSoundVolume(), this.dH()); +// } + 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); @@ -1400,6 +1405,7 @@ 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); } @@ -1407,20 +1413,40 @@ 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 } } @@ -1428,7 +1454,7 @@ 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(); @@ -1449,7 +1475,8 @@ 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; @@ -1467,15 +1494,18 @@ 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() { @@ -1560,6 +1590,7 @@ 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; @@ -2096,10 +2127,12 @@ 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 dH();} // Paper - OBFHELPER protected float dH() { 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 415f0d74748484db0a211187a74b5d0b51ffe1cd..1e57e53c965a2e9335aa36926c44f7f3aa43af3c 100644 --- a/src/main/java/net/minecraft/server/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/EntityPlayer.java @@ -84,6 +84,10 @@ 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; @@ -586,6 +590,15 @@ 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) { @@ -737,8 +750,17 @@ 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/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index 27fa6f5c2e806da2bef12fb7ffbb0f9e90725594..2a243970e629dae83a223ad995f587361f91451f 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -1784,7 +1784,15 @@ 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 94a3a40fd14ecfcda8ca6a29edb2787f4babb154..8a5a583e49e037aeeeb38c38fc2a83b1048cf382 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -789,9 +789,16 @@ 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()) { @@ -807,8 +814,15 @@ 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(); @@ -825,6 +839,31 @@ 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.getBukkit(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 */