private function writeChunk(Chunk $chunk)
{
$binary = $chunk->toBinary(true);
$index = LevelDB::chunkIndex($chunk->getX(), $chunk->getZ());
$this->db->put($index . self::ENTRY_TERRAIN, substr($binary, 8, -1));
$this->db->put($index . self::ENTRY_FLAGS, substr($binary, -1));
$this->db->put($index . self::ENTRY_VERSION, "");
}
private function writeChunk(Chunk $chunk)
{
$binary = $chunk->toBinary(true);
$index = LevelDB::chunkIndex($chunk->getX(), $chunk->getZ());
$this->db->put($index . "0", substr($binary, 8, -1));
$this->db->put($index . "f", substr($binary, -1));
$this->db->put($index . "v", "");
}
/**
* @param string $data
* @param LevelProvider $provider
*
* @return Chunk
*/
public static function fromBinary($data, LevelProvider $provider = null)
{
try {
$chunkX = PHP_INT_SIZE === 8 ? unpack("V", substr($data, 0, 4))[1] << 32 >> 32 : unpack("V", substr($data, 0, 4))[1];
$chunkZ = PHP_INT_SIZE === 8 ? unpack("V", substr($data, 4, 4))[1] << 32 >> 32 : unpack("V", substr($data, 4, 4))[1];
$chunkData = substr($data, 8, -1);
$flags = ord(substr($data, -1));
$entities = null;
$tiles = null;
if ($provider instanceof LevelDB) {
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$entityData = $provider->getDatabase()->get(substr($data, 0, 8) . "2");
if ($entityData !== false and strlen($entityData) > 0) {
$nbt->read($entityData, true);
$entities = $nbt->getData();
if (!is_array($entities)) {
$entities = [$entities];
}
}
$tileData = $provider->getDatabase()->get(substr($data, 0, 8) . "1");
if ($tileData !== false and strlen($tileData) > 0) {
$nbt->read($tileData, true);
$tiles = $nbt->getData();
if (!is_array($tiles)) {
$tiles = [$tiles];
}
}
}
$chunk = new Chunk($provider instanceof LevelProvider ? $provider : LevelDB::class, $chunkX, $chunkZ, $chunkData, $entities, $tiles);
if ($flags & 0x1) {
$chunk->setGenerated();
}
if ($flags & 0x2) {
$chunk->setPopulated();
}
return $chunk;
} catch (\Exception $e) {
return null;
}
}
/**
* @param string $data
* @param LevelProvider $provider
*
* @return Chunk
*/
public static function fromBinary($data, LevelProvider $provider = \null)
{
try {
$chunkX = \unpack("V", \substr($data, 0, 4))[1];
$chunkZ = \unpack("V", \substr($data, 4, 4))[1];
$chunkData = \substr($data, 8, -1);
$flags = \ord(\substr($data, -1));
$entities = \null;
$tiles = \null;
$extraData = [];
if ($provider instanceof LevelDB) {
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$entityData = $provider->getDatabase()->get(\substr($data, 0, 8) . LevelDB::ENTRY_ENTITIES);
if ($entityData !== \false and \strlen($entityData) > 0) {
$nbt->read($entityData, \true);
$entities = $nbt->getData();
if (!\is_array($entities)) {
$entities = [$entities];
}
}
$tileData = $provider->getDatabase()->get(\substr($data, 0, 8) . LevelDB::ENTRY_TILES);
if ($tileData !== \false and \strlen($tileData) > 0) {
$nbt->read($tileData, \true);
$tiles = $nbt->getData();
if (!\is_array($tiles)) {
$tiles = [$tiles];
}
}
$tileData = $provider->getDatabase()->get(\substr($data, 0, 8) . LevelDB::ENTRY_EXTRA_DATA);
if ($tileData !== \false and \strlen($tileData) > 0) {
$stream = new BinaryStream($tileData);
$count = $stream->getInt();
for ($i = 0; $i < $count; ++$i) {
$key = $stream->getInt();
$value = $stream->getShort(\false);
$extraData[$key] = $value;
}
}
}
$chunk = new Chunk($provider instanceof LevelProvider ? $provider : LevelDB::class, $chunkX, $chunkZ, $chunkData, $entities, $tiles);
if ($flags & 0x1) {
$chunk->setGenerated();
}
if ($flags & 0x2) {
$chunk->setPopulated();
}
if ($flags & 0x4) {
$chunk->setLightPopulated();
}
return $chunk;
} catch (\Exception $e) {
return \null;
}
}
