Added EntityItemDamageEvent (#4928)

2024-12-27 07:20:00 +08:00 · 2021-08-09 22:04:44 -07:00 · 2021-08-09 22:04:44 -07:00 · 80650e8936
commit 80650e8936
parent 25cd8aba9f
2 changed files with 154 additions and 0 deletions
--- a/patches/api/0328-Added-EntityDamageItemEvent.patch
+++ b/patches/api/0328-Added-EntityDamageItemEvent.patch
@ -0,0 +1,89 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Tue, 22 Dec 2020 13:51:06 -0800
+Subject: [PATCH] Added EntityDamageItemEvent
+
+
+diff --git a/src/main/java/io/papermc/paper/event/entity/EntityDamageItemEvent.java b/src/main/java/io/papermc/paper/event/entity/EntityDamageItemEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..13862939d7b633f08d5c70bfd2097c47278efcce
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/event/entity/EntityDamageItemEvent.java
+@@ -0,0 +1,77 @@
+package io.papermc.paper.event.entity;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityEvent;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Called when an item on or used by an entity takes durability damage as a result of being hit/used.
+ * <p>
+ * NOTE: default vanilla behaviour dictates that armor/tools picked up by
+ * mobs do not take damage (except via Thorns).
+ */
+public class EntityDamageItemEvent extends EntityEvent implements Cancellable {
+
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+    private final ItemStack item;
+    private int damage;
+    private boolean cancelled;
+
+    public EntityDamageItemEvent(@NotNull Entity entity, @NotNull ItemStack item, int damage) {
+        super(entity);
+        this.item = item;
+        this.damage = damage;
+    }
+
+    /**
+     * Gets the item being damaged.
+     *
+     * @return the item
+     */
+    @NotNull
+    public ItemStack getItem() {
+        return item;
+    }
+
+    /**
+     * Gets the amount of durability damage this item will be taking.
+     *
+     * @return durability change
+     */
+    public int getDamage() {
+        return damage;
+    }
+
+    /**
+     * Sets the amount of durability damage this item will be taking.
+     *
+     * @param damage the damage amount to cause
+     */
+    public void setDamage(int damage) {
+        this.damage = damage;
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    @Override
+    public void setCancelled(boolean cancel) {
+        cancelled = cancel;
+    }
+
+    @NotNull
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+}
--- a/patches/server/0744-Added-EntityDamageItemEvent.patch
+++ b/patches/server/0744-Added-EntityDamageItemEvent.patch
@ -0,0 +1,65 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Tue, 22 Dec 2020 13:52:48 -0800
+Subject: [PATCH] Added EntityDamageItemEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
+index ae6638e44b5562436e8d3ad89167663c6f3961b1..3e5e358e24bd84a05785a9391526f316475e95ff 100644
+--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
+@@ -523,7 +523,7 @@ public final class ItemStack {
+         return this.getItem().getMaxDamage();
+     }
+ 
+-    public boolean hurt(int amount, Random random, @Nullable ServerPlayer player) {
+    public boolean hurt(int amount, Random random, @Nullable LivingEntity player) { // Paper - allow any living entity instead of only ServerPlayers
+         if (!this.isDamageableItem()) {
+             return false;
+         } else {
+@@ -541,8 +541,8 @@ public final class ItemStack {
+ 
+                 amount -= k;
+                 // CraftBukkit start
+-                if (player != null) {
+-                    PlayerItemDamageEvent event = new PlayerItemDamageEvent(player.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount);
+                if (player instanceof ServerPlayer serverPlayer) { // Paper
+                    PlayerItemDamageEvent event = new PlayerItemDamageEvent(serverPlayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount); // Paper
+                     event.getPlayer().getServer().getPluginManager().callEvent(event);
+ 
+                     if (amount != event.getDamage() || event.isCancelled()) {
+@@ -553,6 +553,14 @@ public final class ItemStack {
+                     }
+ 
+                     amount = event.getDamage();
+                    // Paper start - EntityDamageItemEvent
+                } else if (player != null) {
+                    io.papermc.paper.event.entity.EntityDamageItemEvent event = new io.papermc.paper.event.entity.EntityDamageItemEvent(player.getBukkitLivingEntity(), CraftItemStack.asCraftMirror(this), amount);
+                    if (!event.callEvent()) {
+                        return false;
+                    }
+                    amount = event.getDamage();
+                    // Paper end
+                 }
+                 // CraftBukkit end
+                 if (amount <= 0) {
+@@ -560,8 +568,8 @@ public final class ItemStack {
+                 }
+             }
+ 
+-            if (player != null && amount != 0) {
+-                CriteriaTriggers.ITEM_DURABILITY_CHANGED.trigger(player, this, this.getDamageValue() + amount);
+            if (player instanceof ServerPlayer serverPlayer && amount != 0) { // Paper
+                CriteriaTriggers.ITEM_DURABILITY_CHANGED.trigger(serverPlayer, this, this.getDamageValue() + amount); // Paper
+             }
+ 
+             j = this.getDamageValue() + amount;
+@@ -573,7 +581,7 @@ public final class ItemStack {
+     public <T extends LivingEntity> void hurtAndBreak(int amount, T entity, Consumer<T> breakCallback) {
+         if (!entity.level.isClientSide && (!(entity instanceof net.minecraft.world.entity.player.Player) || !((net.minecraft.world.entity.player.Player) entity).getAbilities().instabuild)) {
+             if (this.isDamageableItem()) {
+-                if (this.hurt(amount, entity.getRandom(), entity instanceof ServerPlayer ? (ServerPlayer) entity : null)) {
+                if (this.hurt(amount, entity.getRandom(), entity /*instanceof ServerPlayer ? (ServerPlayer) entity : null*/)) { // Paper - pass LivingEntity for EntityItemDamageEvent
+                     breakCallback.accept(entity);
+                     Item item = this.getItem();
+                     // CraftBukkit start - Check for item breaking