pocketmine\utils\BinaryStream::getShort PHP Method

    public function getShort()
    {
        return Binary::readShort($this->get(2));
    }

 public function __construct($level, Compound $nbt = null)
 {
     if ($nbt === null) {
         $this->provider = $level;
         $this->nbt = new Compound("Level", []);
         return;
     }
     $this->nbt = $nbt;
     if (isset($this->nbt->Entities) and $this->nbt->Entities instanceof Enum) {
         $this->nbt->Entities->setTagType(NBT::TAG_Compound);
     } else {
         $this->nbt->Entities = new Enum("Entities", []);
         $this->nbt->Entities->setTagType(NBT::TAG_Compound);
     }
     if (isset($this->nbt->TileEntities) and $this->nbt->TileEntities instanceof Enum) {
         $this->nbt->TileEntities->setTagType(NBT::TAG_Compound);
     } else {
         $this->nbt->TileEntities = new Enum("TileEntities", []);
         $this->nbt->TileEntities->setTagType(NBT::TAG_Compound);
     }
     if (isset($this->nbt->TileTicks) and $this->nbt->TileTicks instanceof Enum) {
         $this->nbt->TileTicks->setTagType(NBT::TAG_Compound);
     } else {
         $this->nbt->TileTicks = new Enum("TileTicks", []);
         $this->nbt->TileTicks->setTagType(NBT::TAG_Compound);
     }
     if (!isset($this->nbt->BiomeColors) or !$this->nbt->BiomeColors instanceof IntArray) {
         $this->nbt->BiomeColors = new IntArray("BiomeColors", array_fill(0, 256, 0));
     }
     if (!isset($this->nbt->HeightMap) or !$this->nbt->HeightMap instanceof IntArray) {
         $this->nbt->HeightMap = new IntArray("HeightMap", array_fill(0, 256, 0));
     }
     if (!isset($this->nbt->Blocks)) {
         $this->nbt->Blocks = new ByteArray("Blocks", str_repeat("", 32768));
     }
     if (!isset($this->nbt->Data)) {
         $this->nbt->Data = new ByteArray("Data", $half = str_repeat("", 16384));
         $this->nbt->SkyLight = new ByteArray("SkyLight", $half);
         $this->nbt->BlockLight = new ByteArray("BlockLight", $half);
     }
     $extraData = [];
     if (!isset($this->nbt->ExtraData) or !$this->nbt->ExtraData instanceof ByteArray) {
         $this->nbt->ExtraData = new ByteArray("ExtraData", Binary::writeInt(0));
     } else {
         $stream = new BinaryStream($this->nbt->ExtraData->getValue());
         $count = $stream->getInt();
         for ($i = 0; $i < $count; ++$i) {
             $key = $stream->getInt();
             $extraData[$key] = $stream->getShort(false);
         }
     }
     parent::__construct($level, $this->nbt["xPos"], $this->nbt["zPos"], $this->nbt->Blocks->getValue(), $this->nbt->Data->getValue(), $this->nbt->SkyLight->getValue(), $this->nbt->BlockLight->getValue(), $this->nbt->BiomeColors->getValue(), $this->nbt->HeightMap->getValue(), $this->nbt->Entities->getValue(), $this->nbt->TileEntities->getValue());
     unset($this->nbt->Blocks);
     unset($this->nbt->Data);
     unset($this->nbt->SkyLight);
     unset($this->nbt->BlockLight);
     unset($this->nbt->BiomeColors);
     unset($this->nbt->HeightMap);
     unset($this->nbt->Biomes);
 }