Add pre-unbreaking amount to PlayerItemDamageEvent (#7724)

patches/api/Add-pre-unbreaking-amount-to-PlayerItemDamageEvent.patch

@@ -0,0 +1,52 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: HexedHero <6012891+HexedHero@users.noreply.github.com>
+Date: Sun, 10 Apr 2022 06:21:19 +0100
+Subject: [PATCH] Add pre-unbreaking amount to PlayerItemDamageEvent
+
+
+diff --git a/src/main/java/org/bukkit/event/player/PlayerItemDamageEvent.java b/src/main/java/org/bukkit/event/player/PlayerItemDamageEvent.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/event/player/PlayerItemDamageEvent.java
++++ b/src/main/java/org/bukkit/event/player/PlayerItemDamageEvent.java
+@@ -0,0 +0,0 @@ public class PlayerItemDamageEvent extends PlayerEvent implements Cancellable {
+     private static final HandlerList handlers = new HandlerList();
+     private final ItemStack item;
+     private int damage;
++    private int originalDamage; // Paper - Add pre-reduction damage
+     private boolean cancelled = false;
+ 
++    @Deprecated // Paper - Add pre-reduction damage
+     public PlayerItemDamageEvent(@NotNull Player player, @NotNull ItemStack what, int damage) {
++        // Paper start - Add pre-reduction damage
++        this(player, what, damage, damage);
++    }
++
++    public PlayerItemDamageEvent(@NotNull Player player, @NotNull ItemStack what, int damage, int originalDamage) {
+         super(player);
+         this.item = what;
+         this.damage = damage;
++        this.originalDamage = originalDamage;
++        // Paper end
+     }
+ 
+     /**
+@@ -0,0 +0,0 @@ public class PlayerItemDamageEvent extends PlayerEvent implements Cancellable {
+         return damage;
+     }
+ 
++    // Paper start - Add pre-reduction damage
++    /**
++     * Gets the amount of durability damage this item would have taken before
++     * the Unbreaking reduction. If the item has no Unbreaking level then
++     * this value will be the same as the {@link #getDamage()} value.
++     *
++     * @return pre-reduction damage amount
++     */
++    public int getOriginalDamage() {
++        return originalDamage;
++    }
++    // Paper end
++
+     public void setDamage(int damage) {
+         this.damage = damage;
+     }

patches/server/Add-pre-unbreaking-amount-to-PlayerItemDamageEvent.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: HexedHero <6012891+HexedHero@users.noreply.github.com>
+Date: Sun, 10 Apr 2022 06:26:32 +0100
+Subject: [PATCH] Add pre-unbreaking amount to PlayerItemDamageEvent
+
+
+diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/ItemStack.java
++++ b/src/main/java/net/minecraft/world/item/ItemStack.java
+@@ -0,0 +0,0 @@ public final class ItemStack {
+                     }
+                 }
+ 
++                int originalDamage = amount; // Paper
+                 amount -= k;
+                 // CraftBukkit start
+                 if (player instanceof ServerPlayer serverPlayer) { // Paper
+-                    PlayerItemDamageEvent event = new PlayerItemDamageEvent(serverPlayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount); // Paper
++                    PlayerItemDamageEvent event = new PlayerItemDamageEvent(serverPlayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount, originalDamage); // Paper
+                     event.getPlayer().getServer().getPluginManager().callEvent(event);
+ 
+                     if (amount != event.getDamage() || event.isCancelled()) {

test-plugin/src/main/java/io/papermc/paper/testplugin/TestPlugin.java

@@ -1,6 +1,8 @@
 package io.papermc.paper.testplugin;
 
+import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerItemDamageEvent;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public final class TestPlugin extends JavaPlugin implements Listener {
@@ -8,4 +10,9 @@ public final class TestPlugin extends JavaPlugin implements Listener {
     public void onEnable() {
         this.getServer().getPluginManager().registerEvents(this, this);
     }
+
+    @EventHandler
+    public void a(PlayerItemDamageEvent event) {
+        System.out.println(event.getOriginalDamage() + " to " + event.getDamage());
+    }
 }