PaperMC/patches/server/0847-Fix-HumanEntity-drop-not-updating-the-client-inv.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

30 lines
1.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 10 Oct 2021 18:18:01 -0700
Subject: [PATCH] Fix HumanEntity#drop not updating the client inv
== AT ==
public net.minecraft.server.level.ServerPlayer containerSynchronizer
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index 10fad0ba0624fdb601de9cfb9dc82590bd8149ce..94c2ea713e0614de570458f6b9c418a3d67d14b5 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -755,8 +755,15 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
// Paper end
@Override
public boolean dropItem(boolean dropAll) {
- if (!(this.getHandle() instanceof ServerPlayer)) return false;
- return ((ServerPlayer) this.getHandle()).drop(dropAll);
+ // Paper start - Fix HumanEntity#drop not updating the client inv
+ if (!(this.getHandle() instanceof ServerPlayer player)) return false;
+ boolean success = player.drop(dropAll);
+ if (!success) return false;
+ final net.minecraft.world.entity.player.Inventory inv = player.getInventory();
+ final java.util.OptionalInt optionalSlot = player.containerMenu.findSlot(inv, inv.selected);
+ optionalSlot.ifPresent(slot -> player.containerSynchronizer.sendSlotChange(player.containerMenu, slot, inv.getSelected()));
+ return true;
+ // Paper end - Fix HumanEntity#drop not updating the client inv
}
@Override