GlobalBlockStateHandlers.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\block\BlockStateData;
use pocketmine\data\bedrock\block\BlockTypeNames;
use pocketmine\data\bedrock\block\convert\BlockObjectToStateSerializer;
use pocketmine\data\bedrock\block\convert\BlockStateToObjectDeserializer;
use pocketmine\data\bedrock\block\upgrade\BlockDataUpgrader;
use pocketmine\data\bedrock\block\upgrade\BlockIdMetaUpgrader;
use pocketmine\data\bedrock\block\upgrade\BlockStateUpgrader;
use pocketmine\data\bedrock\block\upgrade\BlockStateUpgradeSchemaUtils;
use pocketmine\data\bedrock\block\upgrade\LegacyBlockIdToStringIdMap;
use pocketmine\utils\Filesystem;
use Symfony\Component\Filesystem\Path;
use const PHP_INT_MAX;
use const pocketmine\BEDROCK_BLOCK_UPGRADE_SCHEMA_PATH;
 
final class GlobalBlockStateHandlers{
    private static ?BlockObjectToStateSerializer $blockStateSerializer = null;
 
    private static ?BlockStateToObjectDeserializer $blockStateDeserializer = null;
 
    private static ?BlockDataUpgrader $blockDataUpgrader = null;
 
    private static ?BlockStateData $unknownBlockStateData = null;
 
    public static function getDeserializer() : BlockStateToObjectDeserializer{
        return self::$blockStateDeserializer ??= new BlockStateToObjectDeserializer();
    }
 
    public static function getSerializer() : BlockObjectToStateSerializer{
        return self::$blockStateSerializer ??= new BlockObjectToStateSerializer();
    }
 
    public static function getUpgrader() : BlockDataUpgrader{
        if(self::$blockDataUpgrader === null){
            $blockStateUpgrader = new BlockStateUpgrader(BlockStateUpgradeSchemaUtils::loadSchemas(
                Path::join(BEDROCK_BLOCK_UPGRADE_SCHEMA_PATH, 'nbt_upgrade_schema'),
                PHP_INT_MAX
            ));
            self::$blockDataUpgrader = new BlockDataUpgrader(
                BlockIdMetaUpgrader::loadFromString(
                    Filesystem::fileGetContents(Path::join(
                        BEDROCK_BLOCK_UPGRADE_SCHEMA_PATH,
                        'id_meta_to_nbt/1.12.0.bin'
                    )),
                    LegacyBlockIdToStringIdMap::getInstance(),
                    $blockStateUpgrader
                ),
                $blockStateUpgrader
            );
        }
 
        return self::$blockDataUpgrader;
    }
 
    public static function getUnknownBlockStateData() : BlockStateData{
        return self::$unknownBlockStateData ??= BlockStateData::current(BlockTypeNames::INFO_UPDATE, []);
    }
}