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NBT: Split up concerns of endianness and varint NBT into their own classes, separate stream handling from NBT class

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The remaining methods, constants and fields in the NBT class now pertain to generic NBT functionality (except for the matchList()/matchTree() methods, but that's a job for another time). All NBT I/O specific logic has now been moved to NBTStream and its descendents.
This commit is contained in:
Dylan K. Taylor
2017-11-18 16:44:21 +00:00
parent 63edcb8934
commit 965c19375f
26 changed files with 588 additions and 342 deletions
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12
src/pocketmine/level/format/io/leveldb/LevelDB.php
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@ -32,7 +32,7 @@ use pocketmine\level\generator\Flat;
use pocketmine\level\generator\Generator;
use pocketmine\level\Level;
use pocketmine\level\LevelException;
use pocketmine\nbt\NBT;
use pocketmine\nbt\LittleEndianNBTStream;
use pocketmine\nbt\tag\{
ByteTag, CompoundTag, FloatTag, IntTag, LongTag, StringTag
};
@ -94,7 +94,7 @@ class LevelDB extends BaseLevelProvider{
if(!file_exists($this->path)){
mkdir($this->path, 0777, true);
}
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$nbt = new LittleEndianNBTStream();
$nbt->read(substr(file_get_contents($this->getPath() . "level.dat"), 8));
$levelData = $nbt->getData();
if($levelData instanceof CompoundTag){
@ -217,7 +217,7 @@ class LevelDB extends BaseLevelProvider{
new StringTag("generatorOptions", $options["preset"] ?? "")
]);
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$nbt = new LittleEndianNBTStream();
$nbt->setData($levelData);
$buffer = $nbt->write();
file_put_contents($path . "level.dat", Binary::writeLInt(self::CURRENT_STORAGE_VERSION) . Binary::writeLInt(strlen($buffer)) . $buffer);
@ -247,7 +247,7 @@ class LevelDB extends BaseLevelProvider{
$this->levelData->setInt("NetworkVersion", ProtocolInfo::CURRENT_PROTOCOL);
$this->levelData->setInt("StorageVersion", self::CURRENT_STORAGE_VERSION);
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$nbt = new LittleEndianNBTStream();
$nbt->setData($this->levelData);
$buffer = $nbt->write();
file_put_contents($this->getPath() . "level.dat", Binary::writeLInt(self::CURRENT_STORAGE_VERSION) . Binary::writeLInt(strlen($buffer)) . $buffer);
@ -416,7 +416,7 @@ class LevelDB extends BaseLevelProvider{
throw new UnsupportedChunkFormatException("don't know how to decode chunk format version $chunkVersion");
}
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$nbt = new LittleEndianNBTStream();
$entities = [];
if(($entityData = $this->db->get($index . self::TAG_ENTITY)) !== false and strlen($entityData) > 0){
@ -553,7 +553,7 @@ class LevelDB extends BaseLevelProvider{
*/
private function writeTags(array $targets, string $index){
if(!empty($targets)){
$nbt = new NBT(NBT::LITTLE_ENDIAN);
$nbt = new LittleEndianNBTStream();
$nbt->setData($targets);
$this->db->put($index, $nbt->write());
}else{