cambertian

Hi, I'm new here - the name's Cambertian. You might know me from a few other gaming forums. Just like I'm new to these forums, I'm new to 7800basic. I'm in the process of making a golf game similar to Mario Golf on the Game Boy Color, but without all of the RPG/story mode gimmicks, different golf clubs, or a lot of the extra fluff. So far I've gotten it to display one of the maps and a tiny bit of the HUD. There's no interactivity just yet. Basically, I was wondering how I could get a "rotating" cursor to aim your shots with. I'm assuming there's no sine or cosine functions to work with, and I'm assuming that's what I need, so I'm wondering about a good implementation method for them. I was thinking of using my Calculus experience and using a Taylor series approximation to get part of each function, then "looping" around once they get past the point of inaccuracy. I'm worried about using too much memory while making the calculations, though, so I'm thinking there must be a better way... Has anyone attempted this before? Would you be willing to point me in the right direction? It doesn't have to be code-snippets - just drop a name or algorithm and I'll do the research. Thanks! - Cambert