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/level/EntityPlayer.java b/src/main/java/net/minecraft/server/level/EntityPlayer.java index b3c5a22bf2eb360399ebfbf90fc74843dcd78509..b1e45c326b27d640337fc69bd0e107f5db3eb4cf 100644 --- a/src/main/java/net/minecraft/server/level/EntityPlayer.java +++ b/src/main/java/net/minecraft/server/level/EntityPlayer.java @@ -213,6 +213,10 @@ 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.network.protocol.game.PacketPlayOutUpdateHealth queuedHealthUpdatePacket; + // Paper end // CraftBukkit start public String displayName; @@ -716,6 +720,15 @@ public class EntityPlayer extends EntityHuman implements ICrafting { IChatBaseComponent defaultMessage = this.getCombatTracker().getDeathMessage(); org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, loot, PaperAdventure.asAdventure(defaultMessage), defaultMessage.getString(), keepInventory); // Paper - Adventure + // 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) { @@ -862,8 +875,17 @@ 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/world/damagesource/CombatTracker.java b/src/main/java/net/minecraft/world/damagesource/CombatTracker.java index f6f79ed9c38206cc6a4feb5504e854a476868aec..7d2b947b3c2b255c01241f2c4a6d7377a0a7c671 100644 --- a/src/main/java/net/minecraft/world/damagesource/CombatTracker.java +++ b/src/main/java/net/minecraft/world/damagesource/CombatTracker.java @@ -203,6 +203,7 @@ 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/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java index 110b88a098de307ed02b7f72c02c333cd32ec531..4d7bb023092ee118d68ecce1918e220f541b33c1 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -1537,6 +1537,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne } // 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); @@ -2436,6 +2437,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne 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/world/entity/EntityLiving.java b/src/main/java/net/minecraft/world/entity/EntityLiving.java index 9d8f92c313829bb32c17907bf2ef23d069517dc3..c189a7051240bb357acf5075c98206a258409b0c 100644 --- a/src/main/java/net/minecraft/world/entity/EntityLiving.java +++ b/src/main/java/net/minecraft/world/entity/EntityLiving.java @@ -189,7 +189,7 @@ 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; @@ -233,6 +233,7 @@ 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() { @@ -1348,13 +1349,17 @@ 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); @@ -1493,6 +1498,7 @@ 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); } @@ -1500,20 +1506,40 @@ 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 } } @@ -1521,7 +1547,7 @@ 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(); @@ -1549,7 +1575,8 @@ 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; @@ -1567,15 +1594,18 @@ 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() { @@ -1660,6 +1690,7 @@ 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; @@ -2196,10 +2227,12 @@ 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/world/entity/animal/EntityFox.java b/src/main/java/net/minecraft/world/entity/animal/EntityFox.java index 459b7727e946679989477f4a7e99c5ca47ac0b30..a3b714a9d63c6bb33a2731fb9293c9d155754b17 100644 --- a/src/main/java/net/minecraft/world/entity/animal/EntityFox.java +++ b/src/main/java/net/minecraft/world/entity/animal/EntityFox.java @@ -647,15 +647,25 @@ 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/world/entity/animal/horse/EntityHorseChestedAbstract.java b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseChestedAbstract.java index aa12a0c9f30cd2b8a6de75ff9822843da808ae64..3daa1780a332128bd472fa80039112f3ca9bc4e9 100644 --- a/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseChestedAbstract.java +++ b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseChestedAbstract.java @@ -68,11 +68,19 @@ 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/world/entity/decoration/EntityArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/EntityArmorStand.java index b2a661ddcf13f7d7758cc1cac1f4d2c3fa6c4635..b93d04cd23a3a3616d1594c69174ea1271a204fb 100644 --- a/src/main/java/net/minecraft/world/entity/decoration/EntityArmorStand.java +++ b/src/main/java/net/minecraft/world/entity/decoration/EntityArmorStand.java @@ -745,7 +745,8 @@ 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/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index c763f2bbd10ce6b62d703d3eabb894f24be91b11..5c3b83244e77c54d3de5cf56171a88c2952fcd13 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -1836,7 +1836,15 @@ 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 ecd3b31216616b0ffe239785e3942cfb4bfebcf8..e408f30da80a4f1450d6ac659e25e511190b1c7b 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -784,9 +784,16 @@ 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()) { @@ -802,8 +809,15 @@ public class CraftEventFactory { CraftPlayer entity = victim.getBukkitEntity(); PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage, stringDeathMessage); // Paper - Adventure 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(); @@ -820,6 +834,31 @@ 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 */