public void Connect()
    {
        string ip = PlayerPrefs.GetString("ip");

        Debug.Log("ip " + ip);
        socket.url = "ws://" + ip + ":3000/socket.io/?EIO=4&transport=websocket";
        socket.Awake();
        socket.On("USER_CONNECTED", OnUserConnected);
        socket.On("JOIN_LOBBY", onJoinLobby);
        socket.Connect();
        StartCoroutine(ConnectToServer());
    }