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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
71 lines
3.4 KiB
Diff
71 lines
3.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Sun, 8 May 2022 13:35:45 -0700
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Subject: [PATCH] ItemStack damage API
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Adds methods notify clients about item breaks and
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to simulate damage done to an itemstack and all
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the logic associated with damaging them
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== AT ==
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public net.minecraft.world.entity.LivingEntity entityEventForEquipmentBreak(Lnet/minecraft/world/entity/EquipmentSlot;)B
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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index cb585a82e52697d84f3da25a150b663c8c286f58..7ba726584ce4a58654b8a8b9604f0cca762b3f42 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
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@@ -1074,6 +1074,53 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
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throw new IllegalArgumentException(entityCategory + " is an unrecognized entity category");
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}
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+ @Override
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+ public void broadcastSlotBreak(org.bukkit.inventory.EquipmentSlot slot) {
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+ this.getHandle().broadcastBreakEvent(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot));
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+ }
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+
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+ @Override
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+ public void broadcastSlotBreak(org.bukkit.inventory.EquipmentSlot slot, Collection<org.bukkit.entity.Player> players) {
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+ if (players.isEmpty()) {
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+ return;
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+ }
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+ final net.minecraft.network.protocol.game.ClientboundEntityEventPacket packet = new net.minecraft.network.protocol.game.ClientboundEntityEventPacket(
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+ this.getHandle(),
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+ net.minecraft.world.entity.LivingEntity.entityEventForEquipmentBreak(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot))
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+ );
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+ players.forEach(player -> ((CraftPlayer) player).getHandle().connection.send(packet));
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+ }
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+
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+ @Override
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+ public ItemStack damageItemStack(ItemStack stack, int amount) {
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+ final net.minecraft.world.item.ItemStack nmsStack;
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+ if (stack instanceof CraftItemStack craftItemStack) {
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+ if (craftItemStack.handle == null || craftItemStack.handle.isEmpty()) {
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+ return stack;
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+ }
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+ nmsStack = craftItemStack.handle;
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+ } else {
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+ nmsStack = CraftItemStack.asNMSCopy(stack);
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+ stack = CraftItemStack.asCraftMirror(nmsStack); // mirror to capture changes in hurt logic & events
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+ }
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+ this.damageItemStack0(nmsStack, amount, null);
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+ return stack;
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+ }
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+
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+ @Override
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+ public void damageItemStack(org.bukkit.inventory.EquipmentSlot slot, int amount) {
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+ final net.minecraft.world.entity.EquipmentSlot nmsSlot = org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot);
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+ this.damageItemStack0(this.getHandle().getItemBySlot(nmsSlot), amount, nmsSlot);
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+ }
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+
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+ private void damageItemStack0(net.minecraft.world.item.ItemStack nmsStack, int amount, net.minecraft.world.entity.EquipmentSlot slot) {
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+ nmsStack.hurtAndBreak(amount, this.getHandle(), livingEntity -> {
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+ if (slot != null) {
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+ livingEntity.broadcastBreakEvent(slot);
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+ }
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+ });
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+ }
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+
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@Override
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public void knockback(double strength, double directionX, double directionZ) {
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Preconditions.checkArgument(strength > 0, "Knockback strength must be > 0");
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