play method
Tells the mixer to activate the action. This method can be chained.
Note: Activating this action doesn’t necessarily mean that the animation starts immediately: If the action had already finished before (by reaching the end of its last loop), or if a time for a delayed start has been set (via startAt), a reset must be executed first.
Some other settings (paused=true, enabled=false, weight=0, timeScale=0) can prevent the animation from playing, too.
Implementation
AnimationAction play() {
mixer.activateAction(this);
return this;
}