LegacySkinAdapter.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\network\mcpe\convert;
 
use pocketmine\entity\InvalidSkinException;
use pocketmine\entity\Skin;
use pocketmine\network\mcpe\protocol\types\skin\SkinData;
use pocketmine\network\mcpe\protocol\types\skin\SkinImage;
use function is_array;
use function is_string;
use function json_decode;
use function json_encode;
use function random_bytes;
use function str_repeat;
use const JSON_THROW_ON_ERROR;
 
class LegacySkinAdapter implements SkinAdapter{
 
    public function toSkinData(Skin $skin) : SkinData{
        $capeData = $skin->getCapeData();
        $capeImage = $capeData === "" ? new SkinImage(0, 0, "") : new SkinImage(32, 64, $capeData);
        $geometryName = $skin->getGeometryName();
        if($geometryName === ""){
            $geometryName = "geometry.humanoid.custom";
        }
        return new SkinData(
            $skin->getSkinId(),
            "", //TODO: playfab ID
            json_encode(["geometry" => ["default" => $geometryName]], JSON_THROW_ON_ERROR),
            SkinImage::fromLegacy($skin->getSkinData()), [],
            $capeImage,
            $skin->getGeometryData()
        );
    }
 
    public function fromSkinData(SkinData $data) : Skin{
        if($data->isPersona()){
            return new Skin("Standard_Custom", str_repeat(random_bytes(3) . "\xff", 4096));
        }
 
        $capeData = $data->isPersonaCapeOnClassic() ? "" : $data->getCapeImage()->getData();
 
        $resourcePatch = json_decode($data->getResourcePatch(), true);
        if(is_array($resourcePatch) && isset($resourcePatch["geometry"]["default"]) && is_string($resourcePatch["geometry"]["default"])){
            $geometryName = $resourcePatch["geometry"]["default"];
        }else{
            throw new InvalidSkinException("Missing geometry name field");
        }
 
        return new Skin($data->getSkinId(), $data->getSkinImage()->getData(), $capeData, $geometryName, $data->getGeometryData());
    }
}