low budget specter that respawns

Loader.php

<?php

declare(strict_types=1);

namespace muqsit\fakeplayer;

use pocketmine\entity\Skin;
use pocketmine\event\Listener;
use pocketmine\network\mcpe\NetworkSession;
use pocketmine\network\mcpe\PacketSender;
use pocketmine\network\mcpe\protocol\ClientboundPacket;
use pocketmine\network\mcpe\protocol\RespawnPacket;
use pocketmine\player\PlayerInfo;
use pocketmine\plugin\PluginBase;
use pocketmine\scheduler\ClosureTask;
use pocketmine\utils\UUID;

final class Loader extends PluginBase implements Listener{

	protected function onEnable() : void{
		$_players = $this->getResource("players.json");
		$players = json_decode(stream_get_contents($_players), true, 512, JSON_THROW_ON_ERROR);
		fclose($_players);

		$this->getScheduler()->scheduleDelayedTask(new ClosureTask(function(int $currentTick) use($players) : void{
			foreach($players as $uuid => $data){
				["xuid" => $xuid, "gamertag" => $gamertag] = $data;
				$this->addPlayer(UUID::fromString($uuid), $xuid, $gamertag, $data["extra_data"] ?? []);
			}
		}), 1);
	}

	public function addPlayer(UUID $uuid, string $xuid, string $username, array $extra_data) : void{
		$_skin_data = $this->getResource("skin.rgba");
		$skin_data = stream_get_contents($_skin_data);
		fclose($_skin_data);

		$server = $this->getServer();
		$network = $server->getNetwork();

		$session = new class($server, $network->getSessionManager(), new class implements PacketSender{
			public function send(string $payload, bool $immediate) : void{}
			public function close(string $reason = "unknown reason") : void{}
		}, $server->getIp(), $server->getPort()) extends NetworkSession{
			public function sendDataPacket(ClientboundPacket $packet, bool $immediate = false) : bool{
				if(parent::sendDataPacket($packet, $immediate)){
					if($packet instanceof RespawnPacket){
						$this->getPlayer()->respawn();
					}
					return true;
				}
				return false;
			}
		};

		$network->getSessionManager()->add($session);

		$session->setPlayerInfo(new PlayerInfo($username, $uuid, new Skin("Standard_Custom", $skin_data), "en-US", $xuid, $extra_data));
		$session->onLoginSuccess();
		$session->onResourcePacksDone();
		$session->getPlayer()->setViewDistance(4);
		$session->onSpawn();
	}
}

players.json:

{
    "dbd5485b-425c-3336-97fe-a3f5c947e6e0": {
        "xuid": "2535448890738751",
        "gamertag": "BoxierChimera37",
        "extra_data": {
            "DeviceId": "ea78448a-6b33-3bbd-0e04-22dc3fb9f250",
            "DeviceModel": "PocketMine-MP",
            "DeviceOS": 7
        }
    }
}

skin.rgba: https://www.dropbox.com/s/1mxtrfhahjty64i/skin.rgba?dl=0