PocketMine-MP/src/data/bedrock/item/upgrade/R12ItemIdToBlockIdMap.php

102 lines
3.3 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\data\bedrock\item\upgrade;
use pocketmine\utils\AssumptionFailedError;
use pocketmine\utils\SingletonTrait;
use pocketmine\utils\Utils;
use Symfony\Component\Filesystem\Path;
use function file_get_contents;
use function is_array;
use function is_string;
use function json_decode;
use function mb_strtolower;
use const pocketmine\BEDROCK_ITEM_UPGRADE_SCHEMA_PATH;
/**
* Maps all known 1.12 and lower item IDs to their respective block IDs, where appropriate.
* If an item ID does not have a corresponding 1.12 block ID, assume the item is not a blockitem.
*
* This is only needed for deserializing blockitems from 1.8 and lower (or 1.12 and lower in the case of PM). In 1.9 and
* above, the blockstate NBT is stored in the itemstack NBT, and the item ID is not used.
*/
final class R12ItemIdToBlockIdMap{
use SingletonTrait;
private static function make() : self{
$map = json_decode(
Utils::assumeNotFalse(file_get_contents(Path::join(BEDROCK_ITEM_UPGRADE_SCHEMA_PATH, '1.12.0_item_id_to_block_id_map.json')), "Missing required resource file"),
associative: true,
flags: JSON_THROW_ON_ERROR
);
if(!is_array($map)){
throw new AssumptionFailedError("Invalid blockitem ID mapping table, expected array as root type");
}
$builtMap = [];
foreach($map as $itemId => $blockId){
if(!is_string($itemId)){
throw new AssumptionFailedError("Invalid blockitem ID mapping table, expected string as key");
}
if(!is_string($blockId)){
throw new AssumptionFailedError("Invalid blockitem ID mapping table, expected string as value");
}
$builtMap[$itemId] = $blockId;
}
return new self($builtMap);
}
/**
* @var string[]
* @phpstan-var array<string, string>
*/
private array $itemToBlock = [];
/**
* @var string[]
* @phpstan-var array<string, string>
*/
private array $blockToItem = [];
/**
* @param string[] $itemToBlock
* @phpstan-param array<string, string> $itemToBlock
*/
public function __construct(array $itemToBlock){
foreach(Utils::stringifyKeys($itemToBlock) as $itemId => $blockId){
$this->itemToBlock[mb_strtolower($itemId, 'US-ASCII')] = $blockId;
$this->blockToItem[mb_strtolower($blockId, 'US-ASCII')] = $itemId;
}
}
public function itemIdToBlockId(string $itemId) : ?string{
return $this->itemToBlock[mb_strtolower($itemId, 'US-ASCII')] ?? null;
}
public function blockIdToItemId(string $blockId) : ?string{
//we don't need this for any functionality, but it might be nice to have for debugging
return $this->blockToItem[mb_strtolower($blockId, 'US-ASCII')] ?? null;
}
}