Thanks for all your replies people.
lunarray: that's quite a lot of variables and stuff! :) Thanks for that reference website too.
nimtrix: seems much simpler.
I'm going to try both approaches see which one doesn't make my non-math-non-programming brain explode. :)
Like nutmix said, I'm VERY surprised such a feature hasn't been implemented yet in C2. I mean, it's meant to be used by people with little to no programming/maths skills and for the creation of videogames which involves movement of sprites.
Anyways, thanks again to all.