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Fix PlayerItemHeldEvent firing twice (#5534)

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Co-authored by: chickeneer <emcchickeneer@gmail.com>
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Jake Potrebic 2021-04-23 06:57:15 -07:00 committed by GitHub
parent 14de2b7959
commit db801cbf3c
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Spigot-Server-Patches/0711-fix-PlayerItemHeldEvent-firing-twice.patch Normal file
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@ -0,0 +1,30 @@
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/network/protocol/game/PacketPlayInHeldItemSlot.java b/src/main/java/net/minecraft/network/protocol/game/PacketPlayInHeldItemSlot.java
index d68f3e6b35f0af846c8a66710c5752508c095179..0e8ee44d0104ca7c666f57bdb54e0957935d5b34 100644
--- a/src/main/java/net/minecraft/network/protocol/game/PacketPlayInHeldItemSlot.java
+++ b/src/main/java/net/minecraft/network/protocol/game/PacketPlayInHeldItemSlot.java
@@ -24,6 +24,7 @@ public class PacketPlayInHeldItemSlot implements Packet<PacketListenerPlayIn> {
packetlistenerplayin.a(this);
}
+ public int getItemInHandIndex() { return b(); } // Paper - OBFHELPER
public int b() {
return this.itemInHandIndex;
}
diff --git a/src/main/java/net/minecraft/server/network/PlayerConnection.java b/src/main/java/net/minecraft/server/network/PlayerConnection.java
index 6ad075907d56a8f41ca3a7b82ff90a6d3ad9f1d4..b543776da3b799643893984a8c6f29477ed78d4a 100644
--- a/src/main/java/net/minecraft/server/network/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/network/PlayerConnection.java
@@ -1903,6 +1903,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
PlayerConnectionUtils.ensureMainThread(packetplayinhelditemslot, this, this.player.getWorldServer());
if (this.player.isFrozen()) return; // CraftBukkit
if (packetplayinhelditemslot.b() >= 0 && packetplayinhelditemslot.b() < PlayerInventory.getHotbarSize()) {
+ if (packetplayinhelditemslot.getItemInHandIndex() == this.player.inventory.itemInHandIndex) { return; } // Paper - don't fire itemheldevent when there wasn't a slot change
PlayerItemHeldEvent event = new PlayerItemHeldEvent(this.getPlayer(), this.player.inventory.itemInHandIndex, packetplayinhelditemslot.b());
this.server.getPluginManager().callEvent(event);
if (event.isCancelled()) {