PocketMine-MP/src/world/format/io/BaseWorldProvider.php
2022-02-07 03:06:59 +00:00

102 lines
3.5 KiB
PHP

<?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\world\format\io;
use pocketmine\data\bedrock\blockstate\BlockStateData;
use pocketmine\data\bedrock\blockstate\BlockTypeNames;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\world\format\io\exception\CorruptedWorldException;
use pocketmine\world\format\io\exception\UnsupportedWorldFormatException;
use pocketmine\world\format\PalettedBlockArray;
use pocketmine\world\WorldException;
use function file_exists;
abstract class BaseWorldProvider implements WorldProvider{
/** @var string */
protected $path;
/** @var WorldData */
protected $worldData;
public function __construct(string $path){
if(!file_exists($path)){
throw new WorldException("World does not exist");
}
$this->path = $path;
$this->worldData = $this->loadLevelData();
}
/**
* @throws CorruptedWorldException
* @throws UnsupportedWorldFormatException
*/
abstract protected function loadLevelData() : WorldData;
private function translatePalette(PalettedBlockArray $blockArray) : PalettedBlockArray{
$palette = $blockArray->getPalette();
//TODO: this should be dependency-injected so it can be replaced, but that would break BC
//also, we want it to be lazy-loaded ...
$legacyBlockStateMapper = GlobalBlockStateHandlers::getLegacyBlockStateMapper();
$blockStateDeserializer = GlobalBlockStateHandlers::getDeserializer();
$newPalette = [];
foreach($palette as $k => $legacyIdMeta){
$newStateData = $legacyBlockStateMapper->fromIntIdMeta($legacyIdMeta >> 4, $legacyIdMeta & 0xf);
if($newStateData === null){
//TODO: remember data for unknown states so we can implement them later
$newStateData = new BlockStateData(BlockTypeNames::INFO_UPDATE, CompoundTag::create(), BlockStateData::CURRENT_VERSION);
}
$newPalette[$k] = $blockStateDeserializer->deserialize($newStateData);
}
//TODO: this is sub-optimal since it reallocates the offset table multiple times
return PalettedBlockArray::fromData(
$blockArray->getBitsPerBlock(),
$blockArray->getWordArray(),
$newPalette
);
}
protected function palettizeLegacySubChunkXZY(string $idArray, string $metaArray) : PalettedBlockArray{
return $this->translatePalette(SubChunkConverter::convertSubChunkXZY($idArray, $metaArray));
}
protected function palettizeLegacySubChunkYZX(string $idArray, string $metaArray) : PalettedBlockArray{
return $this->translatePalette(SubChunkConverter::convertSubChunkYZX($idArray, $metaArray));
}
protected function palettizeLegacySubChunkFromColumn(string $idArray, string $metaArray, int $yOffset) : PalettedBlockArray{
return $this->translatePalette(SubChunkConverter::convertSubChunkFromLegacyColumn($idArray, $metaArray, $yOffset));
}
public function getPath() : string{
return $this->path;
}
public function getWorldData() : WorldData{
return $this->worldData;
}
}