Planetary Orbit physics model

brice2109@me.com

Im trying to create a game that implements a game mechanic of orbiting around planetary bodies. Can anyone tell me how to use the velocity of my my main sprite to make a physics system that causes it to orbit another actor base on how close it is and how strong the gravity is.

tatiang

Here's a rudimentary demo. Move with the arrow keys. The planet has gravity but only when the ship isn't moving with the arrow keys. And there's a glitch when the ship reaches the planet. Maybe it'll give you ideas, though...

(This might be helpful, too: http://forums.gamesalad.com/discussion/53533/getting-actors-to-orbit-each-other-at-various-levels)

Socks

Along with tatiang's stuff above here is another demo I made for someone else, might be another few ideas to play with in there:

http://www.mediafire.com/?isrsdax11f8aacx

Background thread: http://forums.gamesalad.com/discussion/comment/376753/#Comment_376753