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. == AT == public net.minecraft.world.entity.LivingEntity getDeathSound()Lnet/minecraft/sounds/SoundEvent; public net.minecraft.world.entity.LivingEntity getSoundVolume()F diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java index 38a3b264ba72631c27203a178ac0bbdd36e10a10..80cedd5221d3c0dc475c631113e8782507067cb0 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -248,6 +248,10 @@ public class ServerPlayer extends Player { private int containerCounter; public boolean wonGame; private int containerUpdateDelay; // Paper - Configurable container update tick rate + // Paper start - cancellable death event + public boolean queueHealthUpdatePacket; + public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket; + // Paper end - cancellable death event // CraftBukkit start public String displayName; @@ -810,7 +814,7 @@ public class ServerPlayer extends Player { @Override public void die(DamageSource damageSource) { - this.gameEvent(GameEvent.ENTITY_DIE); + // this.gameEvent(GameEvent.ENTITY_DIE); // Paper - move below event cancellation check boolean flag = this.level().getGameRules().getBoolean(GameRules.RULE_SHOWDEATHMESSAGES); // CraftBukkit start - fire PlayerDeathEvent if (this.isRemoved()) { @@ -838,6 +842,16 @@ public class ServerPlayer extends Player { String deathmessage = defaultMessage.getString(); this.keepLevel = keepInventory; // SPIGOT-2222: pre-set keepLevel org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, loot, PaperAdventure.asAdventure(defaultMessage), 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; + } + this.gameEvent(GameEvent.ENTITY_DIE); // moved from the top of this method + // Paper end // SPIGOT-943 - only call if they have an inventory open if (this.containerMenu != this.inventoryMenu) { @@ -986,8 +1000,17 @@ public class ServerPlayer extends Player { } } } - - return super.hurt(source, amount); + // Paper start - cancellable death events + //return super.hurt(source, amount); + this.queueHealthUpdatePacket = true; + boolean damaged = super.hurt(source, amount); + this.queueHealthUpdatePacket = false; + if (this.queuedHealthUpdatePacket != null) { + this.connection.send(this.queuedHealthUpdatePacket); + this.queuedHealthUpdatePacket = null; + } + return damaged; + // Paper end } } } diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java index b9d202cb06672f0791792ac676761c404ffb02bc..78f601ff13b160c0661ba0b60365403f9eb7fffb 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -259,6 +259,7 @@ public abstract class LivingEntity extends Entity implements Attackable { public Set collidableExemptions = new HashSet<>(); public boolean bukkitPickUpLoot; 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() { @@ -1522,13 +1523,12 @@ public abstract class LivingEntity extends Entity implements Attackable { if (this.isDeadOrDying()) { if (!this.checkTotemDeathProtection(source)) { - SoundEvent soundeffect = this.getDeathSound(); - - if (flag1 && soundeffect != null) { - this.playSound(soundeffect, this.getSoundVolume(), this.getVoicePitch()); - } + // Paper start - moved into CraftEventFactory event caller for cancellable death event + this.silentDeath = !flag1; // mark entity as dying silently + // Paper end this.die(source); + this.silentDeath = false; // Paper - cancellable death event - reset to default } } else if (flag1) { this.playHurtSound(source); @@ -1680,6 +1680,7 @@ public abstract class LivingEntity extends Entity implements Attackable { Entity entity = damageSource.getEntity(); LivingEntity entityliving = this.getKillCredit(); + /* // Paper - move down to make death event cancellable - this is the awardKillScore below if (this.deathScore >= 0 && entityliving != null) { entityliving.awardKillScore(this, this.deathScore, damageSource); } @@ -1691,24 +1692,59 @@ public abstract class LivingEntity extends Entity implements Attackable { if (!this.level().isClientSide && this.hasCustomName()) { if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot } + */ // Paper - move down to make death event cancellable - this is the awardKillScore below this.dead = true; - this.getCombatTracker().recheckStatus(); + // Paper - moved into if below Level world = this.level(); if (world instanceof ServerLevel) { ServerLevel worldserver = (ServerLevel) world; + // Paper - move below into if for onKill - if (entity == null || entity.killedEntity(worldserver, this)) { + // Paper start + org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(damageSource); + if (deathEvent == null || !deathEvent.isCancelled()) { + if (this.deathScore >= 0 && entityliving != null) { + entityliving.awardKillScore(this, this.deathScore, damageSource); + } + // Paper start - clear equipment if event is not cancelled + if (this instanceof Mob) { + for (EquipmentSlot slot : this.clearedEquipmentSlots) { + this.setItemSlot(slot, ItemStack.EMPTY); + } + this.clearedEquipmentSlots.clear(); + } + // Paper end + + if (this.isSleeping()) { + this.stopSleeping(); + } + + if (!this.level().isClientSide && this.hasCustomName()) { + if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot + } + + this.getCombatTracker().recheckStatus(); + if (entity != null) { + entity.killedEntity((ServerLevel) this.level(), this); + } this.gameEvent(GameEvent.ENTITY_DIE); - this.dropAllDeathLoot(damageSource); - this.createWitherRose(entityliving); + } else { + this.dead = false; + this.setHealth((float) deathEvent.getReviveHealth()); } - this.level().broadcastEntityEvent(this, (byte) 3); + // Paper end + this.createWitherRose(entityliving); } + // Paper start + if (this.dead) { // Paper + this.level().broadcastEntityEvent(this, (byte) 3); this.setPose(Pose.DYING); + } + // Paper end } } @@ -1716,7 +1752,7 @@ public abstract class LivingEntity extends Entity implements Attackable { if (!this.level().isClientSide) { boolean flag = false; - if (adversary instanceof WitherBoss) { + if (this.dead && adversary instanceof WitherBoss) { // Paper if (this.level().getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) { BlockPos blockposition = this.blockPosition(); BlockState iblockdata = Blocks.WITHER_ROSE.defaultBlockState(); @@ -1745,7 +1781,11 @@ public abstract class LivingEntity extends Entity implements Attackable { } } - protected void dropAllDeathLoot(DamageSource source) { + // Paper start + protected boolean clearEquipmentSlots = true; + protected Set clearedEquipmentSlots = new java.util.HashSet<>(); + protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(DamageSource source) { + // Paper end Entity entity = source.getEntity(); int i; @@ -1760,18 +1800,27 @@ public abstract class LivingEntity extends Entity implements Attackable { this.dropEquipment(); // CraftBukkit - from below if (this.shouldDropLoot() && this.level().getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) { this.dropFromLootTable(source, flag); + // Paper start + final boolean prev = this.clearEquipmentSlots; + this.clearEquipmentSlots = false; + this.clearedEquipmentSlots.clear(); + // Paper end this.dropCustomDeathLoot(source, i, flag); + this.clearEquipmentSlots = prev; // Paper } // 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 dropEquipment() {} + 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() { diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java index bb051d73a048b0a8ce245914f3564e39702b8452..645fb2ec7d969068eb10d59d43a512c74cca5a58 100644 --- a/src/main/java/net/minecraft/world/entity/Mob.java +++ b/src/main/java/net/minecraft/world/entity/Mob.java @@ -1057,6 +1057,12 @@ public abstract class Mob extends LivingEntity implements Targeting { } + // Paper start + protected boolean shouldSkipLoot(EquipmentSlot slot) { // method to avoid to fallback into the global mob loot logic (i.e fox) + return false; + } + // Paper end + @Override protected void dropCustomDeathLoot(DamageSource source, int lootingMultiplier, boolean allowDrops) { super.dropCustomDeathLoot(source, lootingMultiplier, allowDrops); @@ -1065,6 +1071,7 @@ public abstract class Mob extends LivingEntity implements Targeting { for (int k = 0; k < j; ++k) { EquipmentSlot enumitemslot = aenumitemslot[k]; + if (this.shouldSkipLoot(enumitemslot)) continue; // Paper ItemStack itemstack = this.getItemBySlot(enumitemslot); float f = this.getEquipmentDropChance(enumitemslot); boolean flag1 = f > 1.0F; @@ -1075,7 +1082,13 @@ public abstract class Mob extends LivingEntity implements Targeting { } this.spawnAtLocation(itemstack); + if (this.clearEquipmentSlots) { // Paper this.setItemSlot(enumitemslot, ItemStack.EMPTY); + // Paper start + } else { + this.clearedEquipmentSlots.add(enumitemslot); + } + // Paper end } } diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java index 8670d8b2a08e96df787a91f36c48df8b345080dc..950e4b476a03fb5c26351a3b4d1578975a0b0ea8 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Fox.java +++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java @@ -711,16 +711,38 @@ public class Fox extends Animal implements VariantHolder { return this.getTrustedUUIDs().contains(uuid); } + // Paper start - handle the bitten item separately like vanilla @Override - protected void dropAllDeathLoot(DamageSource source) { + protected boolean shouldSkipLoot(EquipmentSlot slot) { + return slot == EquipmentSlot.MAINHAND; + } + // Paper end + + @Override + // Paper start - Cancellable death event + protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(DamageSource source) { ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND); - if (!itemstack.isEmpty()) { + boolean releaseMouth = false; + if (!itemstack.isEmpty() && this.level().getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) { // Fix MC-153010 this.spawnAtLocation(itemstack); + releaseMouth = true; + } + + org.bukkit.event.entity.EntityDeathEvent deathEvent = super.dropAllDeathLoot(source); + + // Below is code to drop + + if (deathEvent == null || deathEvent.isCancelled()) { + return deathEvent; + } + + if (releaseMouth) { + // Paper end - Cancellable death event this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY); } - super.dropAllDeathLoot(source); + return deathEvent; // Paper - Cancellable death event } @Override diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java index bb399f775a5530a01f59332848c8ab9b8eceb2b5..14edfe103e61024b569f33de0b6608f39e749319 100644 --- a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java +++ b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java @@ -70,11 +70,19 @@ public abstract class AbstractChestedHorse extends AbstractHorse { this.spawnAtLocation(Blocks.CHEST); } - this.setChest(false); + //this.setCarryingChest(false); // Paper - moved to post death logic } } + // Paper start + protected void postDeathDropItems(org.bukkit.event.entity.EntityDeathEvent event) { + if (this.hasChest() && (event == null || !event.isCancelled())) { + this.setChest(false); + } + } + // Paper end + @Override public void addAdditionalSaveData(CompoundTag nbt) { super.addAdditionalSaveData(nbt); diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java index ecce8036e58a9ed1408e110e75980bf77c18779a..ddd512e1d7608ec051fb5adf6ec2c6bbb93f5a9d 100644 --- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java +++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java @@ -492,8 +492,10 @@ public class ArmorStand extends LivingEntity { } // CraftBukkit end if (source.is(DamageTypeTags.IS_EXPLOSION)) { - this.brokenByAnything(source); - this.kill(); + // Paper start - avoid duplicate event call + org.bukkit.event.entity.EntityDeathEvent event = this.brokenByAnything(source); + if (!event.isCancelled()) this.kill(false); + // Paper end return false; } else if (source.is(DamageTypeTags.IGNITES_ARMOR_STANDS)) { if (this.isOnFire()) { @@ -536,9 +538,9 @@ public class ArmorStand extends LivingEntity { this.gameEvent(GameEvent.ENTITY_DAMAGE, source.getEntity()); this.lastHit = i; } else { - this.brokenByPlayer(source); + org.bukkit.event.entity.EntityDeathEvent event = this.brokenByPlayer(source); // Paper this.showBreakingParticles(); - this.discard(); // CraftBukkit - SPIGOT-4890: remain as this.discard() since above damagesource method will call death event + if (!event.isCancelled()) this.kill(false); // Paper - we still need to kill to follow vanilla logic (emit the game event etc...) } return true; @@ -590,8 +592,10 @@ public class ArmorStand extends LivingEntity { f1 -= amount; if (f1 <= 0.5F) { - this.brokenByAnything(damageSource); - this.kill(); + // Paper start - avoid duplicate event call + org.bukkit.event.entity.EntityDeathEvent event = this.brokenByAnything(damageSource); + if (!event.isCancelled()) this.kill(false); + // Paper end } else { this.setHealth(f1); this.gameEvent(GameEvent.ENTITY_DAMAGE, damageSource.getEntity()); @@ -599,7 +603,7 @@ public class ArmorStand extends LivingEntity { } - private void brokenByPlayer(DamageSource damageSource) { + private org.bukkit.event.entity.EntityDeathEvent brokenByPlayer(DamageSource damageSource) { // Paper ItemStack itemstack = new ItemStack(Items.ARMOR_STAND); if (this.hasCustomName()) { @@ -607,10 +611,10 @@ public class ArmorStand extends LivingEntity { } this.drops.add(org.bukkit.craftbukkit.inventory.CraftItemStack.asBukkitCopy(itemstack)); // CraftBukkit - add to drops - this.brokenByAnything(damageSource); + return this.brokenByAnything(damageSource); // Paper } - private void brokenByAnything(DamageSource damageSource) { + private org.bukkit.event.entity.EntityDeathEvent brokenByAnything(DamageSource damageSource) { // Paper this.playBrokenSound(); // this.dropAllDeathLoot(damagesource); // CraftBukkit - moved down @@ -632,7 +636,7 @@ public class ArmorStand extends LivingEntity { this.armorItems.set(i, ItemStack.EMPTY); } } - this.dropAllDeathLoot(damageSource); // CraftBukkit - moved from above + return this.dropAllDeathLoot(damageSource); // CraftBukkit - moved from above // Paper } @@ -759,7 +763,16 @@ public class ArmorStand extends LivingEntity { @Override public void kill() { - org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, this.drops); // CraftBukkit - call event + // Paper start + kill(true); + } + + public void kill(boolean callEvent) { + if (callEvent) { + // Paper end + org.bukkit.event.entity.EntityDeathEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, this.drops); // CraftBukkit - call event // Paper - make cancellable + if (event.isCancelled()) return; // Paper - make cancellable + } // Paper this.remove(Entity.RemovalReason.KILLED); this.gameEvent(GameEvent.ENTITY_DIE); } diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java index 27d29187b5471fa9d1588b7e8e35539be8a861a0..8cda792c1700bbc511e364e28fd7ee6893fe8db2 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -2434,7 +2434,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player { @Override public void sendHealthUpdate() { FoodData foodData = this.getHandle().getFoodData(); - this.sendHealthUpdate(this.getScaledHealth(), foodData.getFoodLevel(), foodData.getSaturationLevel()); + // Paper start - cancellable death event + ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket(this.getScaledHealth(), foodData.getFoodLevel(), foodData.getSaturationLevel()); + if (this.getHandle().queueHealthUpdatePacket) { + this.getHandle().queuedHealthUpdatePacket = packet; + } else { + this.getHandle().connection.send(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 9d95dba058dd26db42d9e32b90399a78211bcd79..a08d1250cd5a5cc70e3796ac56a0cfaee6fe2b83 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -890,9 +890,16 @@ public class CraftEventFactory { public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity 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()) { @@ -909,8 +916,15 @@ public class CraftEventFactory { PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage); event.setKeepInventory(keepInventory); event.setKeepLevel(victim.keepLevel); // SPIGOT-2222: pre-set keepLevel + 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(); @@ -927,6 +941,31 @@ public class CraftEventFactory { return event; } + // Paper start - helper methods for making death event cancellable + // Add information to death event + private static void populateFields(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) { + event.setReviveHealth(event.getEntity().getAttribute(org.bukkit.attribute.Attribute.GENERIC_MAX_HEALTH).getValue()); + event.setShouldPlayDeathSound(!victim.silentDeath && !victim.isSilent()); + net.minecraft.sounds.SoundEvent soundEffect = victim.getDeathSound(); + event.setDeathSound(soundEffect != null ? org.bukkit.craftbukkit.CraftSound.minecraftToBukkit(soundEffect) : null); + event.setDeathSoundCategory(org.bukkit.SoundCategory.valueOf(victim.getSoundSource().name())); + event.setDeathSoundVolume(victim.getSoundVolume()); + event.setDeathSoundPitch(victim.getVoicePitch()); + } + + // Play death sound manually + private static void playDeathSound(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) { + if (event.shouldPlayDeathSound() && event.getDeathSound() != null && event.getDeathSoundCategory() != null) { + net.minecraft.world.entity.player.Player source = victim instanceof net.minecraft.world.entity.player.Player ? (net.minecraft.world.entity.player.Player) victim : null; + double x = event.getEntity().getLocation().getX(); + double y = event.getEntity().getLocation().getY(); + double z = event.getEntity().getLocation().getZ(); + net.minecraft.sounds.SoundEvent soundEffect = org.bukkit.craftbukkit.CraftSound.bukkitToMinecraft(event.getDeathSound()); + net.minecraft.sounds.SoundSource soundCategory = net.minecraft.sounds.SoundSource.valueOf(event.getDeathSoundCategory().name()); + victim.level().playSound(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch()); + } + } + // Paper end /** * Server methods */