private void MoveObjects(object sender, EventArgs e) { player1.MoveBat(); player2.MoveBat(); ball.MoveBall(); ball.CheckForCollision(player1, player2); string winner = ball.CheckForWinner(); if (winner != null) { Console.WriteLine("the winner is " + winner); ball = new Ball(pbBall); if (winner == "p1") { lblP1Score.Text = (Int32.Parse(lblP1Score.Text) + 1).ToString(); } else { lblP2Score.Text = (Int32.Parse(lblP2Score.Text) + 1).ToString(); } } }