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https://github.com/pmmp/PocketMine-MP.git
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73 lines
2.3 KiB
PHP
73 lines
2.3 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\data\bedrock\block\upgrade;
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use pocketmine\data\bedrock\block\BlockStateData;
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use pocketmine\network\mcpe\protocol\serializer\NetworkNbtSerializer;
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use pocketmine\utils\BinaryStream;
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/**
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* Handles translating legacy 1.12 block ID/meta into modern blockstates.
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*/
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final class LegacyBlockStateMapper{
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/**
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* @param BlockStateData[][] $mappingTable
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* @phpstan-param array<string, array<int, BlockStateData>> $mappingTable
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*/
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public function __construct(
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private array $mappingTable,
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private LegacyBlockIdToStringIdMap $legacyNumericIdMap
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){}
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public function fromStringIdMeta(string $id, int $meta) : ?BlockStateData{
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return $this->mappingTable[$id][$meta] ?? $this->mappingTable[$id][0] ?? null;
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}
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public function fromIntIdMeta(int $id, int $meta) : ?BlockStateData{
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$stringId = $this->legacyNumericIdMap->legacyToString($id);
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if($stringId === null){
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return null;
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}
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return $this->fromStringIdMeta($stringId, $meta);
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}
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public static function loadFromString(string $data, LegacyBlockIdToStringIdMap $idMap) : self{
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$mappingTable = [];
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$legacyStateMapReader = new BinaryStream($data);
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$nbtReader = new NetworkNbtSerializer();
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while(!$legacyStateMapReader->feof()){
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$id = $legacyStateMapReader->get($legacyStateMapReader->getUnsignedVarInt());
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$meta = $legacyStateMapReader->getLShort();
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$offset = $legacyStateMapReader->getOffset();
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$state = $nbtReader->read($legacyStateMapReader->getBuffer(), $offset)->mustGetCompoundTag();
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$legacyStateMapReader->setOffset($offset);
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$mappingTable[$id][$meta] = BlockStateData::fromNbt($state);
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}
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return new self($mappingTable, $idMap);
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}
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}
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