angle = (angle%360+360)%360;

Then:
810 -> 90
-810 -> 270
_____
Bob Leisle wrote:
if (angle < 0) {
  angle += 360;
}
--
Fumio Nonaka
mailto:[EMAIL PROTECTED]
http://www.FumioNonaka.com/
My books<http://www.FumioNonaka.com/Books/index.html>
Flash community<http://F-site.org/>
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