private void btnRegister_Click(object sender, RoutedEventArgs e)
        {
            string username = txtUsername.Text;

            StatusCode sc = client.SignUp(username, txtPassword.Password);

            if (sc == StatusCode.SUCCESS)
            {
                //Register succesful
                new LobbyWindow(username, txtPassword.Password).Show();
                this.Close();
            }
            else
            {
                MessageBox.Show(StatusCodeConverter.GetDescription(sc), "Error");
            }
        }
        private void btnLogin_Click(object sender, RoutedEventArgs e)
        {
            btnLogin.IsEnabled = false;

            string username = txtUsername.Text;

            StatusCode sc = client.Login(username, txtPassword.Password);

            if (sc == StatusCode.SUCCESS)
            {
                //Login succesful
                new LobbyWindow(username, txtPassword.Password).Show();
                this.Close();
            }
            else
            {
                MessageBox.Show(StatusCodeConverter.GetDescription(sc), "Error");
            }

            btnLogin.IsEnabled = true;
        }