CPAnimation delegate implementation

When setting the delegate for CPAnimation that doesn't implement all delegate methods an 'undefined' javascript error occurs. It shouldn't be the desired behaviour to require all delegate methods to be implemented.

At this time I'm using a category on CPObject to implement default implementations for all delegate methods to workaround the issue.

@implementation CPObject (CPAnimationDelegate) -(BOOL)animationShouldStart:(CPAnimation)animation {

return YES;

} -(void)animationDidEnd:(CPAnimation)animation {} -(void)animationDidStop:(CPAnimation)animation {} - (float)animation:(CPAnimation)animation valueForProgress:(float)progress {

return progress;

} @end