diff --git a/src/network/mcpe/cache/CraftingDataCache.php b/src/network/mcpe/cache/CraftingDataCache.php
index da3c8e18d..275e1ac20 100644
--- a/src/network/mcpe/cache/CraftingDataCache.php
+++ b/src/network/mcpe/cache/CraftingDataCache.php
@@ -77,7 +77,7 @@ final class CraftingDataCache{
 			foreach($list as $recipe){
 				$pk->entries[] = new ProtocolShapelessRecipe(
 					CraftingDataPacket::ENTRY_SHAPELESS,
-					Binary::writeInt($counter++),
+					Binary::writeInt(++$counter),
 					array_map(function(Item $item) use ($converter) : RecipeIngredient{
 						return $converter->coreItemStackToRecipeIngredient($item);
 					}, $recipe->getIngredientList()),
@@ -102,7 +102,7 @@ final class CraftingDataCache{
 				}
 				$pk->entries[] = $r = new ProtocolShapedRecipe(
 					CraftingDataPacket::ENTRY_SHAPED,
-					Binary::writeInt($counter++),
+					Binary::writeInt(++$counter),
 					$inputs,
 					array_map(function(Item $item) use ($converter) : ItemStack{
 						return $converter->coreItemStackToNet($item);
diff --git a/src/network/mcpe/protocol/AddEntityPacket.php b/src/network/mcpe/protocol/AddEntityPacket.php
index 7d5ff64ce..a8c33d130 100644
--- a/src/network/mcpe/protocol/AddEntityPacket.php
+++ b/src/network/mcpe/protocol/AddEntityPacket.php
@@ -31,24 +31,24 @@ class AddEntityPacket extends DataPacket implements ClientboundPacket{
 	public const NETWORK_ID = ProtocolInfo::ADD_ENTITY_PACKET;
 
 	/** @var int */
-	private $uvarint1;
+	private $entityNetId;
 
-	public static function create(int $uvarint1) : self{
+	public static function create(int $entityNetId) : self{
 		$result = new self;
-		$result->uvarint1 = $uvarint1;
+		$result->entityNetId = $entityNetId;
 		return $result;
 	}
 
-	public function getUvarint1() : int{
-		return $this->uvarint1;
+	public function getEntityNetId() : int{
+		return $this->entityNetId;
 	}
 
 	protected function decodePayload(PacketSerializer $in) : void{
-		$this->uvarint1 = $in->getUnsignedVarInt();
+		$this->entityNetId = $in->getUnsignedVarInt();
 	}
 
 	protected function encodePayload(PacketSerializer $out) : void{
-		$out->putUnsignedVarInt($this->uvarint1);
+		$out->putUnsignedVarInt($this->entityNetId);
 	}
 
 	public function handle(PacketHandlerInterface $handler) : bool{
diff --git a/src/network/mcpe/protocol/RemoveEntityPacket.php b/src/network/mcpe/protocol/RemoveEntityPacket.php
index f2f334440..6c9981d21 100644
--- a/src/network/mcpe/protocol/RemoveEntityPacket.php
+++ b/src/network/mcpe/protocol/RemoveEntityPacket.php
@@ -31,24 +31,24 @@ class RemoveEntityPacket extends DataPacket implements ClientboundPacket{
 	public const NETWORK_ID = ProtocolInfo::REMOVE_ENTITY_PACKET;
 
 	/** @var int */
-	private $uvarint1;
+	private $entityNetId;
 
-	public static function create(int $uvarint1) : self{
+	public static function create(int $entityNetId) : self{
 		$result = new self;
-		$result->uvarint1 = $uvarint1;
+		$result->entityNetId = $entityNetId;
 		return $result;
 	}
 
-	public function getUvarint1() : int{
-		return $this->uvarint1;
+	public function getEntityNetId() : int{
+		return $this->entityNetId;
 	}
 
 	protected function decodePayload(PacketSerializer $in) : void{
-		$this->uvarint1 = $in->getUnsignedVarInt();
+		$this->entityNetId = $in->getUnsignedVarInt();
 	}
 
 	protected function encodePayload(PacketSerializer $out) : void{
-		$out->putUnsignedVarInt($this->uvarint1);
+		$out->putUnsignedVarInt($this->entityNetId);
 	}
 
 	public function handle(PacketHandlerInterface $handler) : bool{
diff --git a/src/network/mcpe/protocol/SetDisplayObjectivePacket.php b/src/network/mcpe/protocol/SetDisplayObjectivePacket.php
index 9c996dd4e..9154bfa95 100644
--- a/src/network/mcpe/protocol/SetDisplayObjectivePacket.php
+++ b/src/network/mcpe/protocol/SetDisplayObjectivePacket.php
@@ -30,6 +30,13 @@ use pocketmine\network\mcpe\protocol\serializer\PacketSerializer;
 class SetDisplayObjectivePacket extends DataPacket implements ClientboundPacket{
 	public const NETWORK_ID = ProtocolInfo::SET_DISPLAY_OBJECTIVE_PACKET;
 
+	public const DISPLAY_SLOT_LIST = "list";
+	public const DISPLAY_SLOT_SIDEBAR = "sidebar";
+	public const DISPLAY_SLOT_BELOW_NAME = "belowname";
+
+	public const SORT_ORDER_ASCENDING = 0;
+	public const SORT_ORDER_DESCENDING = 1;
+
 	/** @var string */
 	public $displaySlot;
 	/** @var string */