[MX] Gravity/Collision

I’m just playing around with a ball and a hill, trying some different stuff.

I used the tutorial for gravity and am trying to incorporate it into a ball falling on a hill and working its way down.

I was going to try and just do it similar to how the tutorial said to define x boundaries.

I was going to try the hittest function, but I am having problems with that. I have a curve line as the hill, as a movie, the problem is that the collision test uses the rectangular boundary of the movie clip instead of the curved line. How can I get around this or is there a better way to go about this?

I was also going to try something like ball attatched to the curved line, and it slides down and bumps into others (like the toy thing they have in doctor’s offices for kids to play with while they wait)

Thanks,