I'm not sure that you played billiard or snooker before.if you played you should know about spin. but anyway if you don't know about it you can see it in this video I want to Implement spin like this game for example difference between Top spin and Back spin is: Top spin Back spin --- Spin behaviour if you aim behind the ball you can shoot the ball in all direction --- if you aim closest to right you can just aim the right if you aim closest to left you can just aim the left --- I found a sam...