Moved network NBT serializer into network namespace

src/pocketmine/network/mcpe/NetworkLittleEndianNBTStream.php

@@ -0,0 +1,79 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\network\mcpe;
+
+use pocketmine\nbt\LittleEndianNBTStream;
+#ifndef COMPILE
+use pocketmine\utils\Binary;
+#endif
+
+#include <rules/NBT.h>
+
+class NetworkLittleEndianNBTStream extends LittleEndianNBTStream{
+
+	public function getInt() : int{
+		return Binary::readVarInt($this->buffer, $this->offset);
+	}
+
+	public function putInt(int $v) : void{
+		$this->put(Binary::writeVarInt($v));
+	}
+
+	public function getLong() : int{
+		return Binary::readVarLong($this->buffer, $this->offset);
+	}
+
+	public function putLong(int $v) : void{
+		$this->put(Binary::writeVarLong($v));
+	}
+
+	public function getString() : string{
+		return $this->get(Binary::readUnsignedVarInt($this->buffer, $this->offset));
+	}
+
+	public function putString(string $v) : void{
+		$len = strlen($v);
+		if($len > 32767){
+			throw new \InvalidArgumentException("NBT strings cannot be longer than 32767 bytes, got $len bytes");
+		}
+		$this->put(Binary::writeUnsignedVarInt($len) . $v);
+	}
+
+	public function getIntArray() : array{
+		$len = $this->getInt(); //varint
+		$ret = [];
+		for($i = 0; $i < $len; ++$i){
+			$ret[] = $this->getInt(); //varint
+		}
+
+		return $ret;
+	}
+
+	public function putIntArray(array $array) : void{
+		$this->putInt(count($array)); //varint
+		foreach($array as $v){
+			$this->putInt($v); //varint
+		}
+	}
+}