if (ball_x_pos >= 690) { ball_x_speed = 0; ball_y_speed = 0; ball_x_pos = 350; ball_y_pos = 200; punktespieler1++; mousepressed = 0;}

            if (ball_x_pos <= 20) { ball_x_speed = 0; ball_y_speed = 0; ball_x_pos = 350; ball_y_pos = 200; punktespieler2++; mousepressed = 0;}