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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 8 May 2022 13:35:45 -0700
Subject: [PATCH] ItemStack damage API
Adds methods notify clients about item breaks and
to simulate damage done to an itemstack and all
the logic associated with damaging them
== AT ==
public net.minecraft.world.entity.LivingEntity entityEventForEquipmentBreak(Lnet/minecraft/world/entity/EquipmentSlot;)B
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index 0ac1d8cf71dc685bcf2d1f9ab1440e933757359c..a158642471ab037ea3b99cac09ba5f3bf282e2a7 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -713,7 +713,14 @@ public final class ItemStack implements DataComponentHolder {
return;
}
}
+ // Paper start - ItemStack damage API - split hurtAndBreak to skip pre-checks like creative mode
+ this.hurtAndBreakWithoutChecks(amount, entity, slot);
+ }
+ }
+ public void hurtAndBreakWithoutChecks(int amount, LivingEntity entity, @org.checkerframework.checker.nullness.qual.Nullable EquipmentSlot slot) {
+ {
+ // Paper end - ItemStack damage API - split hurtAndBreak to skip pre-checks like creative mode
RandomSource randomsource = entity.getRandom();
ServerPlayer entityplayer;
@@ -726,7 +733,7 @@ public final class ItemStack implements DataComponentHolder {
}
this.hurtAndBreak(amount, randomsource, entity, () -> { // Paper - Add EntityDamageItemEvent
- entity.broadcastBreakEvent(slot);
+ if (slot != null) entity.broadcastBreakEvent(slot); // Paper - ItemStack damage API - slot is nullable
Item item = this.getItem();
// CraftBukkit start - Check for item breaking
if (this.count == 1 && entity instanceof net.minecraft.world.entity.player.Player) {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 2537d4d4ec1243f3b80ec13a6b863ec6de619919..6cf60ff71e398dbf6110f94a00e9bb973916a7f8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -1103,4 +1103,48 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
this.getHandle().knockback(strength, directionX, directionZ);
};
// Paper end - knockback API
+
+ // Paper start - ItemStack damage API
+ public void broadcastSlotBreak(final org.bukkit.inventory.EquipmentSlot slot) {
+ this.getHandle().broadcastBreakEvent(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot));
+ }
+
+ @Override
+ public void broadcastSlotBreak(final org.bukkit.inventory.EquipmentSlot slot, final Collection<org.bukkit.entity.Player> players) {
+ if (players.isEmpty()) {
+ return;
+ }
+ final net.minecraft.network.protocol.game.ClientboundEntityEventPacket packet = new net.minecraft.network.protocol.game.ClientboundEntityEventPacket(
+ this.getHandle(),
+ net.minecraft.world.entity.LivingEntity.entityEventForEquipmentBreak(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot))
+ );
+ players.forEach(player -> ((CraftPlayer) player).getHandle().connection.send(packet));
+ }
+
+ @Override
+ public ItemStack damageItemStack(ItemStack stack, final int amount) {
+ final net.minecraft.world.item.ItemStack nmsStack;
+ if (stack instanceof final CraftItemStack craftItemStack) {
+ if (craftItemStack.handle == null || craftItemStack.handle.isEmpty()) {
+ return stack;
+ }
+ nmsStack = craftItemStack.handle;
+ } else {
+ nmsStack = CraftItemStack.asNMSCopy(stack);
+ stack = CraftItemStack.asCraftMirror(nmsStack); // mirror to capture changes in hurt logic & events
+ }
+ this.damageItemStack0(nmsStack, amount, null);
+ return stack;
+ }
+
+ @Override
+ public void damageItemStack(final org.bukkit.inventory.EquipmentSlot slot, final int amount) {
+ final net.minecraft.world.entity.EquipmentSlot nmsSlot = org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot);
+ this.damageItemStack0(this.getHandle().getItemBySlot(nmsSlot), amount, nmsSlot);
+ }
+
+ private void damageItemStack0(final net.minecraft.world.item.ItemStack nmsStack, final int amount, final net.minecraft.world.entity.EquipmentSlot slot) {
+ nmsStack.hurtAndBreakWithoutChecks(amount, this.getHandle(), slot);
+ }
+ // Paper end - ItemStack damage API
}
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