mirror of
https://github.com/PaperMC/Paper.git
synced 2024-08-31 09:09:56 +02:00
386 lines
20 KiB
Diff
386 lines
20 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Phoenix616 <mail@moep.tv>
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Date: Tue, 21 Aug 2018 01:39:35 +0100
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Subject: [PATCH] Improve death events
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This adds the ability to cancel the death events and to modify the sound
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an entity makes when dying. (In cases were no sound should it will be
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called with shouldPlaySound set to false allowing unsilencing of silent
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entities)
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It makes handling of entity deaths a lot nicer as you no longer need
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to listen on the damage event and calculate if the entity dies yourself
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to cancel the death which has the benefit of also receiving the dropped
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items and experience which is otherwise only properly possible by using
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internal code.
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TODO 1.17: this needs to be checked (actually get off your lazy ass and cancel the events) for the following entities,
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maybe more (please check patch overrides for drops for more):
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- players, armor stands, foxes, chested donkeys/llamas
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diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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index fd1937f49312204d38510996a5be43b731f38bde..a2e2b6ea166bf64fe5b49672a6c6f86af3776638 100644
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--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
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+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
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@@ -222,6 +222,10 @@ public class ServerPlayer extends Player {
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public int latency;
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public boolean wonGame;
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private int containerUpdateDelay; // Paper
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+ // Paper start - cancellable death event
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+ public boolean queueHealthUpdatePacket = false;
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+ public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket;
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+ // Paper end
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// CraftBukkit start
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public String displayName;
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@@ -786,6 +790,15 @@ public class ServerPlayer extends Player {
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String deathmessage = defaultMessage.getString();
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this.keepLevel = keepInventory; // SPIGOT-2222: pre-set keepLevel
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org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, loot, PaperAdventure.asAdventure(defaultMessage), defaultMessage.getString(), keepInventory); // Paper - Adventure
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+ // Paper start - cancellable death event
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+ if (event.isCancelled()) {
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+ // make compatible with plugins that might have already set the health in an event listener
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+ if (this.getHealth() <= 0) {
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+ this.setHealth((float) event.getReviveHealth());
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+ }
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+ return;
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+ }
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+ // Paper end
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// SPIGOT-943 - only call if they have an inventory open
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if (this.containerMenu != this.inventoryMenu) {
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@@ -933,8 +946,17 @@ public class ServerPlayer extends Player {
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}
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}
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}
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-
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- return super.hurt(source, amount);
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+ // Paper start - cancellable death events
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+ //return super.hurt(source, amount);
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+ this.queueHealthUpdatePacket = true;
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+ boolean damaged = super.hurt(source, amount);
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+ this.queueHealthUpdatePacket = false;
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+ if (this.queuedHealthUpdatePacket != null) {
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+ this.connection.send(this.queuedHealthUpdatePacket);
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+ this.queuedHealthUpdatePacket = null;
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+ }
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+ return damaged;
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+ // Paper end
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}
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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index cf4640f1e38f3e50b3a85692e032a78b4102d31e..28ec62fd75abc04d4dc22204bfd999d23941f6d2 100644
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--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
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@@ -258,6 +258,7 @@ public abstract class LivingEntity extends Entity {
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public Set<UUID> collidableExemptions = new HashSet<>();
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public boolean bukkitPickUpLoot;
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public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
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+ public boolean silentDeath = false; // Paper - mark entity as dying silently for cancellable death event
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@Override
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public float getBukkitYaw() {
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@@ -1441,13 +1442,12 @@ public abstract class LivingEntity extends Entity {
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if (knockbackCancelled) this.level.broadcastEntityEvent(this, (byte) 2); // Paper - Disable explosion knockback
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if (this.isDeadOrDying()) {
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if (!this.checkTotemDeathProtection(source)) {
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- SoundEvent soundeffect = this.getDeathSound();
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-
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- if (flag1 && soundeffect != null) {
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- this.playSound(soundeffect, this.getSoundVolume(), this.getVoicePitch());
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- }
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+ // Paper start - moved into CraftEventFactory event caller for cancellable death event
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+ this.silentDeath = !flag1; // mark entity as dying silently
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+ // Paper end
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this.die(source);
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+ this.silentDeath = false; // Paper - cancellable death event - reset to default
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}
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} else if (flag1) {
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this.playHurtSound(source);
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@@ -1596,7 +1596,7 @@ public abstract class LivingEntity extends Entity {
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if (!this.isRemoved() && !this.dead) {
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Entity entity = source.getEntity();
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LivingEntity entityliving = this.getKillCredit();
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-
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+ /* // Paper - move down to make death event cancellable - this is the awardKillScore below
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if (this.deathScore >= 0 && entityliving != null) {
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entityliving.awardKillScore(this, this.deathScore, source);
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}
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@@ -1608,20 +1608,52 @@ public abstract class LivingEntity extends Entity {
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if (!this.level.isClientSide && this.hasCustomName()) {
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if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot
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}
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+ */ // Paper - move down to make death event cancellable - this is the awardKillScore below
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this.dead = true;
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- this.getCombatTracker().recheckStatus();
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+ // Paper - moved into if below
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if (this.level instanceof ServerLevel) {
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if (entity != null) {
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- entity.killed((ServerLevel) this.level, this);
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+ // Paper - move below into if for onKill
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}
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- this.dropAllDeathLoot(source);
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+ // Paper start
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+ org.bukkit.event.entity.EntityDeathEvent deathEvent = this.dropAllDeathLoot(source);
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+ if (deathEvent == null || !deathEvent.isCancelled()) {
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+ if (this.deathScore >= 0 && entityliving != null) {
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+ entityliving.awardKillScore(this, this.deathScore, source);
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+ }
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+ // Paper start - clear equipment if event is not cancelled
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+ if (this instanceof Mob mob) {
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+ java.util.Collections.fill(mob.handItems, ItemStack.EMPTY);
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+ java.util.Collections.fill(mob.armorItems, ItemStack.EMPTY);
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+ }
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+ // Paper end
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+
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+ if (this.isSleeping()) {
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+ this.stopSleeping();
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+ }
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+
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+ if (!this.level.isClientSide && this.hasCustomName()) {
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+ if (org.spigotmc.SpigotConfig.logNamedDeaths) LivingEntity.LOGGER.info("Named entity {} died: {}", this, this.getCombatTracker().getDeathMessage().getString()); // Spigot
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+ }
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+
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+ this.getCombatTracker().recheckStatus();
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+ if (entity != null) {
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+ entity.killed((ServerLevel) this.level, this);
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+ }
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+ } else {
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+ this.dead = false;
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+ this.setHealth((float) deathEvent.getReviveHealth());
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+ }
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+ // Paper end
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this.createWitherRose(entityliving);
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}
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+ if (this.dead) { // Paper
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this.level.broadcastEntityEvent(this, (byte) 3);
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this.setPose(Pose.DYING);
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+ } // Paper
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}
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}
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@@ -1629,7 +1661,7 @@ public abstract class LivingEntity extends Entity {
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if (!this.level.isClientSide) {
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boolean flag = false;
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- if (adversary instanceof WitherBoss) {
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+ if (this.dead && adversary instanceof WitherBoss) { // Paper
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if (this.level.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
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BlockPos blockposition = this.blockPosition();
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BlockState iblockdata = Blocks.WITHER_ROSE.defaultBlockState();
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@@ -1658,7 +1690,8 @@ public abstract class LivingEntity extends Entity {
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}
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}
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- protected void dropAllDeathLoot(DamageSource source) {
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+ protected boolean clearEquipmentSlots = true; // Paper
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+ protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(DamageSource source) { // Paper
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Entity entity = source.getEntity();
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int i;
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@@ -1673,18 +1706,23 @@ public abstract class LivingEntity extends Entity {
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this.dropEquipment(); // CraftBukkit - from below
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if (this.shouldDropLoot() && this.level.getGameRules().getBoolean(GameRules.RULE_DOMOBLOOT)) {
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this.dropFromLootTable(source, flag);
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+ this.clearEquipmentSlots = false; // Paper
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this.dropCustomDeathLoot(source, i, flag);
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+ this.clearEquipmentSlots = true; // Paper
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}
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// CraftBukkit start - Call death event
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- CraftEventFactory.callEntityDeathEvent(this, this.drops);
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+ org.bukkit.event.entity.EntityDeathEvent deathEvent = CraftEventFactory.callEntityDeathEvent(this, this.drops); // Paper
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+ this.postDeathDropItems(deathEvent); // Paper
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this.drops = new ArrayList<>();
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// CraftBukkit end
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// this.dropInventory();// CraftBukkit - moved up
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this.dropExperience();
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+ return deathEvent; // Paper
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}
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protected void dropEquipment() {}
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+ 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
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// CraftBukkit start
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public int getExpReward() {
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diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
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index 85af49ff909635973ff20ec3e528a4a0a7c19fc4..7db99b4ad89fd5b38a4767d166caedda86a6188a 100644
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--- a/src/main/java/net/minecraft/world/entity/Mob.java
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+++ b/src/main/java/net/minecraft/world/entity/Mob.java
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@@ -1002,7 +1002,9 @@ public abstract class Mob extends LivingEntity {
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}
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this.spawnAtLocation(itemstack);
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+ if (this.clearEquipmentSlots) { // Paper
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this.setItemSlot(enumitemslot, ItemStack.EMPTY);
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+ } // Paper
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Fox.java b/src/main/java/net/minecraft/world/entity/animal/Fox.java
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index 2caf3aa6ca876d59deb98ee917e8228df140b414..63f0ed4c80b7afa091c4a835eefd6d709428f984 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Fox.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Fox.java
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@@ -696,15 +696,25 @@ public class Fox extends Animal {
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}
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@Override
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- protected void dropAllDeathLoot(DamageSource source) {
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- ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND);
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+ // Paper start - Cancellable death event
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+ protected org.bukkit.event.entity.EntityDeathEvent dropAllDeathLoot(DamageSource source) {
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+ ItemStack itemstack = this.getItemBySlot(EquipmentSlot.MAINHAND).copy(); // Paper - modified by supercall
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+
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+ org.bukkit.event.entity.EntityDeathEvent deathEvent = super.dropAllDeathLoot(source);
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+
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+ // Below is code to drop
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+
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+ if (deathEvent == null || deathEvent.isCancelled()) {
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+ return deathEvent;
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+ }
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+ // Paper end
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if (!itemstack.isEmpty()) {
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this.spawnAtLocation(itemstack);
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this.setItemSlot(EquipmentSlot.MAINHAND, ItemStack.EMPTY);
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}
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- super.dropAllDeathLoot(source);
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+ return deathEvent; // Paper
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}
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public static boolean isPathClear(Fox fox, LivingEntity chasedEntity) {
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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
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index 224eca7d20cf4b890a6bc1b314d566e02e716762..7281eb294ddd178ba742088d3c61bf3d529ff0c4 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractChestedHorse.java
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@@ -68,11 +68,19 @@ public abstract class AbstractChestedHorse extends AbstractHorse {
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this.spawnAtLocation(Blocks.CHEST);
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}
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- this.setChest(false);
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+ //this.setCarryingChest(false); // Paper - moved to post death logic
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}
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}
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+ // Paper start
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+ protected void postDeathDropItems(org.bukkit.event.entity.EntityDeathEvent event) {
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+ if (this.hasChest() && (event == null || !event.isCancelled())) {
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+ this.setChest(false);
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+ }
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+ }
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+ // Paper end
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+
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@Override
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public void addAdditionalSaveData(CompoundTag nbt) {
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super.addAdditionalSaveData(nbt);
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diff --git a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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index 91cf7728aee475cb36f2c02bbfb7e3d2e0d00576..a3a900d10440ed5ebe24370a77ccb6cad911cfc9 100644
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--- a/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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+++ b/src/main/java/net/minecraft/world/entity/decoration/ArmorStand.java
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@@ -754,7 +754,8 @@ public class ArmorStand extends LivingEntity {
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@Override
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public void kill() {
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- org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, drops); // CraftBukkit - call event
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+ org.bukkit.event.entity.EntityDeathEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDeathEvent(this, drops); // CraftBukkit - call event // Paper - make cancellable
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+ if (event.isCancelled()) return; // Paper - make cancellable
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this.remove(Entity.RemovalReason.KILLED);
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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index bce9305b736832abbc9de10a1bf6554c2e724fdf..076135ecdfcb589e39deef50c44196d5ffe53434 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -1935,7 +1935,14 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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}
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public void sendHealthUpdate() {
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- this.getHandle().connection.send(new ClientboundSetHealthPacket(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().getSaturationLevel()));
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+ // Paper start - cancellable death event
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+ ClientboundSetHealthPacket packet = new ClientboundSetHealthPacket(this.getScaledHealth(), this.getHandle().getFoodData().getFoodLevel(), this.getHandle().getFoodData().getSaturationLevel());
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+ if (this.getHandle().queueHealthUpdatePacket) {
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+ this.getHandle().queuedHealthUpdatePacket = packet;
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+ } else {
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+ this.getHandle().connection.send(packet);
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+ }
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+ // Paper end
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}
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public void injectScaledMaxHealth(Collection<AttributeInstance> collection, boolean force) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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index 47b125ba8924d25e97e34611bed3be819d9e1814..b4032ce470346915251d85d1aa7375a116efe771 100644
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--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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@@ -807,9 +807,16 @@ public class CraftEventFactory {
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public static EntityDeathEvent callEntityDeathEvent(net.minecraft.world.entity.LivingEntity victim, List<org.bukkit.inventory.ItemStack> drops) {
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CraftLivingEntity entity = (CraftLivingEntity) victim.getBukkitEntity();
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EntityDeathEvent event = new EntityDeathEvent(entity, drops, victim.getExpReward());
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+ populateFields(victim, event); // Paper - make cancellable
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CraftWorld world = (CraftWorld) entity.getWorld();
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Bukkit.getServer().getPluginManager().callEvent(event);
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+ // Paper start - make cancellable
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+ if (event.isCancelled()) {
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+ return event;
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+ }
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+ playDeathSound(victim, event);
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+ // Paper end
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victim.expToDrop = event.getDroppedExp();
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for (org.bukkit.inventory.ItemStack stack : event.getDrops()) {
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@@ -826,8 +833,15 @@ public class CraftEventFactory {
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PlayerDeathEvent event = new PlayerDeathEvent(entity, drops, victim.getExpReward(), 0, deathMessage, stringDeathMessage); // Paper - Adventure
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event.setKeepInventory(keepInventory);
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event.setKeepLevel(victim.keepLevel); // SPIGOT-2222: pre-set keepLevel
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+ populateFields(victim, event); // Paper - make cancellable
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org.bukkit.World world = entity.getWorld();
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Bukkit.getServer().getPluginManager().callEvent(event);
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+ // Paper start - make cancellable
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+ if (event.isCancelled()) {
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+ return event;
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+ }
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+ playDeathSound(victim, event);
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+ // Paper end
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victim.keepLevel = event.getKeepLevel();
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victim.newLevel = event.getNewLevel();
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@@ -844,6 +858,31 @@ public class CraftEventFactory {
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return event;
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}
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+ // Paper start - helper methods for making death event cancellable
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+ // Add information to death event
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+ private static void populateFields(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) {
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+ event.setReviveHealth(event.getEntity().getAttribute(org.bukkit.attribute.Attribute.GENERIC_MAX_HEALTH).getValue());
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+ event.setShouldPlayDeathSound(!victim.silentDeath && !victim.isSilent());
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+ net.minecraft.sounds.SoundEvent soundEffect = victim.getDeathSound();
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+ event.setDeathSound(soundEffect != null ? org.bukkit.craftbukkit.CraftSound.getBukkit(soundEffect) : null);
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+ event.setDeathSoundCategory(org.bukkit.SoundCategory.valueOf(victim.getSoundSource().name()));
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+ event.setDeathSoundVolume(victim.getSoundVolume());
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+ event.setDeathSoundPitch(victim.getVoicePitch());
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+ }
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+
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+ // Play death sound manually
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+ private static void playDeathSound(net.minecraft.world.entity.LivingEntity victim, EntityDeathEvent event) {
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+ if (event.shouldPlayDeathSound() && event.getDeathSound() != null && event.getDeathSoundCategory() != null) {
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+ net.minecraft.world.entity.player.Player source = victim instanceof net.minecraft.world.entity.player.Player ? (net.minecraft.world.entity.player.Player) victim : null;
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+ double x = event.getEntity().getLocation().getX();
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+ double y = event.getEntity().getLocation().getY();
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+ double z = event.getEntity().getLocation().getZ();
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+ net.minecraft.sounds.SoundEvent soundEffect = org.bukkit.craftbukkit.CraftSound.getSoundEffect(event.getDeathSound());
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+ net.minecraft.sounds.SoundSource soundCategory = net.minecraft.sounds.SoundSource.valueOf(event.getDeathSoundCategory().name());
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+ victim.level.playSound(source, x, y, z, soundEffect, soundCategory, event.getDeathSoundVolume(), event.getDeathSoundPitch());
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+ }
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+ }
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+ // Paper end
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/**
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* Server methods
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*/
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