From 1e9ff44890542da0db402779c714f237268380ea Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Mon, 5 Jun 2017 19:10:00 +0100
Subject: [PATCH] New field for MobEquipmentPacket If anyone wants to play with
 the off-hand, the window ID is 0x77 ;)

---
 src/pocketmine/inventory/PlayerInventory.php                | 1 +
 src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/pocketmine/inventory/PlayerInventory.php b/src/pocketmine/inventory/PlayerInventory.php
index 33484815b..9ca4a766c 100644
--- a/src/pocketmine/inventory/PlayerInventory.php
+++ b/src/pocketmine/inventory/PlayerInventory.php
@@ -236,6 +236,7 @@ class PlayerInventory extends BaseInventory{
 		$pk->item = $item;
 		$pk->inventorySlot = $this->getHeldItemSlot();
 		$pk->hotbarSlot = $this->getHeldItemIndex();
+		$pk->windowId = ContainerSetContentPacket::SPECIAL_INVENTORY;
 
 		if(!is_array($target)){
 			$target->dataPacket($pk);
diff --git a/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php b/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
index d259f7499..d3e8caca5 100644
--- a/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MobEquipmentPacket.php
@@ -33,14 +33,14 @@ class MobEquipmentPacket extends DataPacket{
 	public $item;
 	public $inventorySlot;
 	public $hotbarSlot;
-	public $unknownByte = 0;
+	public $windowId = 0;
 
 	public function decode(){
 		$this->entityRuntimeId = $this->getEntityRuntimeId();
 		$this->item = $this->getSlot();
 		$this->inventorySlot = $this->getByte();
 		$this->hotbarSlot = $this->getByte();
-		$this->unknownByte = $this->getByte();
+		$this->windowId = $this->getByte();
 	}
 
 	public function encode(){
@@ -49,7 +49,7 @@ class MobEquipmentPacket extends DataPacket{
 		$this->putSlot($this->item);
 		$this->putByte($this->inventorySlot);
 		$this->putByte($this->hotbarSlot);
-		$this->putByte($this->unknownByte);
+		$this->putByte($this->windowId);
 	}
 
 	public function handle(NetworkSession $session) : bool{