add method
Adds the animatable
to this juggler who will take care that it is
animated.
When the animatable is finished it is automatically removed from this juggler. An animatable is finished as soon as it's advanceTime method returns false.
Implementation
void add(Animatable animatable) {
if (contains(animatable) == false) {
final animatableLink = _AnimatableLink();
_lastAnimatableLink.animatable = animatable;
_lastAnimatableLink.nextAnimatableLink = animatableLink;
_lastAnimatableLink = animatableLink;
}
}