/// <summary>
        /// sends request to log in to host
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnLogin_Click(object sender, RoutedEventArgs e)
        {
            if (AllboxesFilled())
            {
                try
                {
                    ClientCallback    callback         = new ClientCallback();
                    var               instanceCallback = new InstanceContext(callback);
                    FIARServiceClient client           = new FIARServiceClient(instanceCallback);

                    string username = tbUserName.Text.Trim();
                    string pass     = tbPass.Password.ToString();

                    client.PlayerLogin(username, pass);
                    WaitingRoom waitingRoom = new WaitingRoom(client, username, callback);
                    this.Close();
                    waitingRoom.Show();
                }
                catch (FaultException <PlayerAlreadyConnectedFault> ex)
                {
                    MessageBox.Show(ex.Detail.Details);
                }
                catch (FaultException <PlayerDoesntExistInDataBase> ex)
                {
                    MessageBox.Show(ex.Detail.Details);
                }
                catch (Exception)
                {
                    MessageBox.Show("Server is not avalibale");
                }
            }
        }
        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            try
            {
                if (!gameEnded)
                {
                    Client.Disconnected(UserName);
                }


                waitingRoom.Show();
                waitingRoom.UpdatePlayersAvailable();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }