Okay, I'm currently designing a short little game where you are a flying saucer, and you are flying around trying to shoot this guy below to get points. So, what is hard about this is that there are two cannons trying to shoot you down. Okay, I am wondering how to do this. I was trying to find out a way to say increase cannon balls x pos and y pos according to saucer's x and y pos. I know how to compare the x and y poses, but I don't know how to say the "increase according to" part of it. Any suggestions?