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. TODO 1.17: this needs to be checked (actually get off your lazy ass and cancel the events) for the following entities, maybe more (please check patch overrides for drops for more): - players, armor stands, foxes, chested donkeys/llamas diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java index 0ef0b7fa2af5ac6608f9b8b37317434f15df6bfa..67316da1b90024e58b572606798eba0f335db0bb 100644 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java @@ -228,6 +228,10 @@ public class ServerPlayer extends Player { public int latency; public boolean wonGame; private int containerUpdateDelay; // Paper + // Paper start - cancellable death event + public boolean queueHealthUpdatePacket = false; + public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket; + // Paper end // CraftBukkit start public String displayName; @@ -798,6 +802,15 @@ 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), 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.containerMenu != this.inventoryMenu) { @@ -946,8 +959,17 @@ 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 831e8c32c85a45daff36449f2d6ef57a522fa7cf..b4906b20b48badd4ebff662cb830b36f346b7977 100644 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java +++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java @@ -262,6 +262,7 @@ public abstract class LivingEntity extends Entity { 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() { @@ -1465,13 +1466,12 @@ public abstract class LivingEntity extends Entity { if (knockbackCancelled) this.level.broadcastEntityEvent(this, (byte) 2); // Paper - Disable explosion knockback 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); @@ -1620,7 +1620,7 @@ public abstract class LivingEntity extends Entity { if (!this.isRemoved() && !this.dead) { 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); } @@ -1632,20 +1632,53 @@ public abstract class LivingEntity extends Entity { 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 if (this.level instanceof ServerLevel) { - if (entity == null || entity.wasKilled((ServerLevel) this.level, this)) { + // Paper - move below into if for onKill + + // 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.wasKilled((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); } + if (this.dead) { // Paper + this.level.broadcastEntityEvent(this, (byte) 3); this.setPose(Pose.DYING); + } // Paper } } @@ -1653,7 +1686,7 @@ public abstract class LivingEntity extends Entity { 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(); @@ -1682,7 +1715,11 @@ public abstract class LivingEntity extends Entity { } } - 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; @@ -1697,18 +1734,27 @@ public abstract class LivingEntity extends Entity { 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 95b042aed945adc72238ebeb19369d9b9568dc8d..2ffc99730c3d5dbdec63881a1eca07d5fbb1754e 100644 --- a/src/main/java/net/minecraft/world/entity/Mob.java +++ b/src/main/java/net/minecraft/world/entity/Mob.java @@ -1012,7 +1012,13 @@ public abstract class Mob extends LivingEntity { } 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 fb3b42611d8386b110ea079094d5d50fefceac1a..8f294f10aca2df007830b12da0506f7614206a89 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Fox.java +++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java @@ -700,15 +700,25 @@ public class Fox extends Animal { } @Override - protected void dropAllDeathLoot(DamageSource source) { - ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND); + // Paper start - Cancellable death event + protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(DamageSource source) { + ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND).copy(); // Paper - modified by supercall + + org.bukkit.event.entity.EntityDeathEvent deathEvent = super.dropAllDeathLoot(source); + + // Below is code to drop + + if (deathEvent == null || deathEvent.isCancelled()) { + return deathEvent; + } + // Paper end if (!itemstack.isEmpty()) { this.spawnAtLocation(itemstack); this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY); } - super.dropAllDeathLoot(source); + return deathEvent; // Paper } public static boolean isPathClear(Fox fox, LivingEntity chasedEntity) { 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 c47884bab387647d99ed842b46f1c078ef9b6995..a3f3e06679cef10f50346e9cc6672ec91c6f04a6 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 @@ -69,11 +69,19 @@ 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 f94a74728bd7c02a7f8245c92e7916f0b669ee0d..cd54fa8f7bbcb6036e90f4ef7cdc01d7af835a13 100644 --- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java +++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java @@ -752,7 +752,8 @@ public class ArmorStand extends LivingEntity { @Override public void kill() { - 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.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 7839f3c136cc7e9bdda2f121001acbd6ed2fd6b3..c39e13bd897d1178900558d510de7367bd0bb3a2 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java @@ -2055,7 +2055,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player { } public void sendHealthUpdate() { - this.getHandle().connection.send(new ClientboundSetHealthPacket(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().getSaturationLevel())); + // Paper start - cancellable death event + ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().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 6f9498a7064c41e61f7e50cbe6b4a8d6384f902c..f50e8182f0340119cd06f0b7c96f95727903826e 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -815,9 +815,16 @@ 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()) { @@ -834,8 +841,15 @@ public class CraftEventFactory { PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage, stringDeathMessage); // Paper - Adventure 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(); @@ -852,6 +866,31 @@ 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.getBukkit(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.getSoundEffect(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 */