HW9-2

This one is similar to the last practice, I used a pen to detect red line. As soon as the red horizontal line was traced and was below the blue line, then we got the point and the blue line began to get thicker as well. Furthermore, once the red line crossed out of the blue one, the blue line stopped getting thicker and we got zero point in the end. This practice is very helpful to give us an ideal that we can use it to apply to the simple game in the future project.