public function onRun()
{
$chunk = Chunk::fromFastBinary($this->chunk);
$extraData = new BinaryStream();
$extraData->putLInt(count($chunk->getBlockExtraDataArray()));
foreach ($chunk->getBlockExtraDataArray() as $key => $value) {
$extraData->putLInt($key);
$extraData->putLShort($value);
}
$ordered = $chunk->getBlockIdArray() . $chunk->getBlockDataArray() . $chunk->getBlockSkyLightArray() . $chunk->getBlockLightArray() . pack("C*", ...$chunk->getHeightMapArray()) . pack("N*", ...$chunk->getBiomeColorArray()) . $extraData->getBuffer() . $this->tiles;
$this->setResult($ordered, false);
}
public function getEmptyChunk($chunkX, $chunkZ)
{
return Chunk::getEmptyChunk($chunkX, $chunkZ, $this);
}
protected function unserializeChunk($data)
{
return Chunk::fromBinary($data, $this->levelProvider);
}
public function readChunk($x, $z, $generate = true, $forward = false)
{
$index = self::getChunkOffset($x, $z);
if ($index < 0 or $index >= 4096) {
//Regenerate chunk due to corruption
$this->locationTable[$index][0] = 0;
$this->locationTable[$index][1] = 1;
}
if (!$this->isChunkGenerated($index)) {
if ($generate === true) {
//Allocate space
$this->locationTable[$index][0] = ++$this->lastSector;
$this->locationTable[$index][1] = 1;
fseek($this->filePointer, $this->locationTable[$index][0] << 12);
fwrite($this->filePointer, str_pad(Binary::writeInt(-1) . chr(self::COMPRESSION_ZLIB), 4096, "", STR_PAD_RIGHT));
$this->writeLocationIndex($index);
} else {
return false;
}
}
fseek($this->filePointer, $this->locationTable[$index][0] << 12);
$length = Binary::readInt(fread($this->filePointer, 4));
$compression = ord(fgetc($this->filePointer));
if ($length <= 0) {
//Not yet generated
$this->generateChunk($x, $z);
fseek($this->filePointer, $this->locationTable[$index][0] << 12);
$length = Binary::readInt(fread($this->filePointer, 4));
$compression = ord(fgetc($this->filePointer));
}
if ($length > $this->locationTable[$index][1] << 12) {
//Invalid chunk, bigger than defined number of sectors
MainLogger::getLogger()->error("Corrupted bigger chunk detected");
$this->locationTable[$index][1] = $length >> 12;
$this->writeLocationIndex($index);
} elseif ($compression !== self::COMPRESSION_ZLIB and $compression !== self::COMPRESSION_GZIP) {
MainLogger::getLogger()->error("Invalid compression type");
return false;
}
$chunk = Chunk::fromBinary(fread($this->filePointer, $length - 1), $this->levelProvider);
if ($chunk instanceof Chunk) {
return $chunk;
} elseif ($forward === false) {
MainLogger::getLogger()->error("Corrupted chunk detected");
$this->generateChunk($x, $z);
return $this->readChunk($x, $z, $generate, true);
} else {
return null;
}
}
public function readChunk($x, $z, $generate = \true, $forward = \false)
{
$index = self::getChunkOffset($x, $z);
if ($index < 0 or $index >= 4096) {
return \null;
}
$this->lastUsed = \time();
if (!$this->isChunkGenerated($index)) {
if ($generate === \true) {
//Allocate space
$this->locationTable[$index][0] = ++$this->lastSector;
$this->locationTable[$index][1] = 1;
\fseek($this->filePointer, $this->locationTable[$index][0] << 12);
\fwrite($this->filePointer, \str_pad(\pack("N", 0) . \chr(self::COMPRESSION_ZLIB), 4096, "", STR_PAD_RIGHT));
$this->writeLocationIndex($index);
} else {
return \null;
}
}
\fseek($this->filePointer, $this->locationTable[$index][0] << 12);
$length = \PHP_INT_SIZE === 8 ? \unpack("N", \fread($this->filePointer, 4))[1] << 32 >> 32 : \unpack("N", \fread($this->filePointer, 4))[1];
$compression = \ord(\fgetc($this->filePointer));
if ($length <= 0 or $length > self::MAX_SECTOR_LENGTH) {
//Not yet generated / corrupted
if ($length >= self::MAX_SECTOR_LENGTH) {
$this->locationTable[$index][0] = ++$this->lastSector;
$this->locationTable[$index][1] = 1;
MainLogger::getLogger()->error("Corrupted chunk header detected");
}
$this->generateChunk($x, $z);
\fseek($this->filePointer, $this->locationTable[$index][0] << 12);
$length = \PHP_INT_SIZE === 8 ? \unpack("N", \fread($this->filePointer, 4))[1] << 32 >> 32 : \unpack("N", \fread($this->filePointer, 4))[1];
$compression = \ord(\fgetc($this->filePointer));
}
if ($length > $this->locationTable[$index][1] << 12) {
//Invalid chunk, bigger than defined number of sectors
MainLogger::getLogger()->error("Corrupted bigger chunk detected");
$this->locationTable[$index][1] = $length >> 12;
$this->writeLocationIndex($index);
} elseif ($compression !== self::COMPRESSION_ZLIB and $compression !== self::COMPRESSION_GZIP) {
MainLogger::getLogger()->error("Invalid compression type");
return \null;
}
$chunk = Chunk::fromBinary(\fread($this->filePointer, $length - 1), $this->levelProvider);
if ($chunk instanceof Chunk) {
return $chunk;
} elseif ($forward === \false) {
MainLogger::getLogger()->error("Corrupted chunk detected");
$this->generateChunk($x, $z);
return $this->readChunk($x, $z, $generate, \true);
} else {
return \null;
}
}
