public void ReturnLobby()
    {
        var info = new JoinOrLeaveRoom {
            UserId = User.Id, RoomId = User.RoomId
        };

        Client.Instance.Send(RequestType.LeaveRoom, Proto.Serialize(info));
        SceneManager.LoadSceneAsync(1);
    }
    public void EnterRoom(GameObject sender)
    {
        var index   = sender.name[4] - '0' - 1;
        var room_id = RoomList.List[index].Id;
        var info    = new JoinOrLeaveRoom {
            UserId = User.Id, RoomId = room_id
        };

        Client.Instance.Send(RequestType.EnterRoom, Proto.Serialize(info));
    }