From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: chickeneer <emcchickeneer@gmail.com>
Date: Thu, 22 Apr 2021 19:02:07 -0700
Subject: [PATCH] fix PlayerItemHeldEvent firing twice
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 84d8775c591a8c9f0cd843c20b2f0076139f0810..0c32edbe85d849a1b0a125ad6a9bfc6a2e50c8b7 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1887,6 +1887,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
if (this.player.isImmobile()) return; // CraftBukkit
if (packet.getSlot() >= 0 && packet.getSlot() < Inventory.getSelectionSize()) {
+ if (packet.getSlot() == this.player.getInventory().selected) { return; } // Paper - don't fire itemheldevent when there wasn't a slot change
PlayerItemHeldEvent event = new PlayerItemHeldEvent(this.getCraftPlayer(), this.player.getInventory().selected, packet.getSlot());
this.cserver.getPluginManager().callEvent(event);
if (event.isCancelled()) {
