Hello everyone! I have a question I just cant figure out the remedy for. I like this game in the Arcade http://www.scirra.com/arcade/addicting-rotary-games/782/buildvival-sandbox-builder.

It is a rotary example, where a character rotates around a circle, but how can you achieve this with checking the collision on a circle? There is no way the circle has tons of collision points all the way around the entire circle. I cant find out how this was done.

Any help is appreciated!