PaperMC/patches/server/0522-Prevent-grindstones-from-overstacking-items.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
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.
2024-03-03 17:05:34 -05:00

26 lines
1.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: chickeneer <emcchickeneer@gmail.com>
Date: Tue, 16 Feb 2021 21:37:51 -0600
Subject: [PATCH] Prevent grindstones from overstacking items
diff --git a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
index 1783661f38a6f5fb655ea83953b9467bd91a1302..95ac3446fba1f37637c9700080de2e1ce7a3550a 100644
--- a/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/GrindstoneMenu.java
@@ -198,13 +198,13 @@ public class GrindstoneMenu extends AbstractContainerMenu {
i = Math.max(item.getMaxDamage() - l, 0);
itemstack2 = this.mergeEnchants(itemstack, itemstack1);
if (!itemstack2.isDamageableItem()) {
- if (!ItemStack.matches(itemstack, itemstack1)) {
+ if (!ItemStack.matches(itemstack, itemstack1) || (itemstack2.getMaxStackSize() == 1 && !io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowGrindstoneOverstacking)) { // Paper - add max stack size check & config value
org.bukkit.craftbukkit.event.CraftEventFactory.callPrepareGrindstoneEvent(this.getBukkitView(), ItemStack.EMPTY); // CraftBukkit
this.broadcastChanges();
return;
}
- b0 = 2;
+ b0 = 2; // Paper - add max stack size check & config value; the problem line for above change, causing over-stacking
}
} else {
boolean flag3 = !itemstack.isEmpty();