A handy class from OpenSwordGroup which allows one to time animation easily. OSATimers are very simple - only two methods are ever invoked.
Creating an OSAnimationTimer:
OSAnimationTimer*animationTimer = [OSAnimationTimer timerWithFramerate:30];
You can find it, along with example animation code, at http://opensword.dyndns.org/OSATObjectProject.dmg.gz . You might also want to visit OpenSwordGroup’s WikiWikiWeb at http://himitsu.dyndns.org/OpenSwordWiki/ .
The original author feels that no one should ever use this object in this state.
So people can learn from it at there own risk. Useless policing is useless.
Both links don’t exist anymore.