diff --git a/src/pocketmine/network/mcpe/NetworkBinaryStream.php b/src/pocketmine/network/mcpe/NetworkBinaryStream.php
index 4c5bb7b8d..0f0af85cf 100644
--- a/src/pocketmine/network/mcpe/NetworkBinaryStream.php
+++ b/src/pocketmine/network/mcpe/NetworkBinaryStream.php
@@ -114,14 +114,20 @@ class NetworkBinaryStream extends BinaryStream{
 			$this->putLInt($animation->getType());
 			$this->putLFloat($animation->getFrames());
 		}
-		$this->putSkinImage(new SkinImage(0, 0, $skin->getCapeData()));
+		if($skin->getCapeData() !== ""){
+			$this->putSkinImage(new SkinImage(32, 64, $skin->getCapeData()));
+		}else{
+			$this->putSkinImage(new SkinImage(0, 0, ""));
+		}
 		$this->putString($skin->getGeometryData());
 		$this->putString(""); //animation data
 		$this->putBool(false); //isPremium
 		$this->putBool(false); //isPersona
 		$this->putBool(false); //isCapeOnClassic
 		$this->putString(""); //capeId
-		$this->putString(""); //fullskinId
+
+		//this has to be unique or the client will do stupid things
+		$this->putString(UUID::fromRandom()->toString()); //full skin ID
 	}
 
 	private function getSkinImage() : SkinImage{
diff --git a/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php b/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
index 7964b1b45..28c61b970 100644
--- a/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/AddPlayerPacket.php
@@ -74,6 +74,8 @@ class AddPlayerPacket extends DataPacket{
 
 	/** @var string */
 	public $deviceId = ""; //TODO: fill player's device ID (???)
+	/** @var int */
+	public $buildPlatform = -1;
 
 	protected function decodePayload(){
 		$this->uuid = $this->getUUID();
@@ -103,6 +105,7 @@ class AddPlayerPacket extends DataPacket{
 		}
 
 		$this->deviceId = $this->getString();
+		$this->buildPlatform = $this->getLInt();
 	}
 
 	protected function encodePayload(){
@@ -133,6 +136,7 @@ class AddPlayerPacket extends DataPacket{
 		}
 
 		$this->putString($this->deviceId);
+		$this->putLInt($this->buildPlatform);
 	}
 
 	public function handle(NetworkSession $session) : bool{
diff --git a/src/pocketmine/network/mcpe/protocol/MultiplayerSettingsPacket.php b/src/pocketmine/network/mcpe/protocol/MultiplayerSettingsPacket.php
index 28a0d9145..b12afd01a 100644
--- a/src/pocketmine/network/mcpe/protocol/MultiplayerSettingsPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/MultiplayerSettingsPacket.php
@@ -27,15 +27,32 @@ namespace pocketmine\network\mcpe\protocol;
 
 use pocketmine\network\mcpe\NetworkSession;
 
-class MultiplayerSettingsPacket extends DataPacket{
+class MultiplayerSettingsPacket extends DataPacket/* implements ServerboundPacket*/{ //TODO: this might be clientbound too, but unsure
 	public const NETWORK_ID = ProtocolInfo::MULTIPLAYER_SETTINGS_PACKET;
 
+	public const ACTION_ENABLE_MULTIPLAYER = 0;
+	public const ACTION_DISABLE_MULTIPLAYER = 1;
+	public const ACTION_REFRESH_JOIN_CODE = 2;
+
+	/** @var int */
+	private $action;
+
+	public static function create(int $action) : self{
+		$result = new self;
+		$result->action = $action;
+		return $result;
+	}
+
+	public function getAction() : int{
+		return $this->action;
+	}
+
 	protected function decodePayload() : void{
-		//TODO
+		$this->action = $this->getVarInt();
 	}
 
 	protected function encodePayload() : void{
-		//TODO
+		$this->putVarInt($this->action);
 	}
 
 	public function handle(NetworkSession $handler) : bool{