karlwestin/CAAT — pull request #3 by aristidesfl (2012-03-31 19:26:40+00:00)
Title: Add fronze state to actor

Actor.freeze()
The actor will be kept on the screen but won't be animated.
Has the same effect as setting Actor.animate to an empty function,
except the animate function doesn't get lost in the process.
It also reads better.

Actor.unfreeze()
Removes actor from frozen state and resumes animation.