Use your mouse to point in the direction you want to shoot. Press space to shoot. The farther the distance between the mouse and the ball, the more force it will shoot with. Sometimes the ball turns at weird angles. If it keeps going in a circle, just click the green flag again.
Jaybig30 gave me the idea of making a basketball shooting game. I followed Coding With Chris's basketball shoot game tutorial.The link to the video is below. https://www.youtube.com/watch?v=9AxMvTGZQQg