Create an update listener that checks plays the animation in reverse. Requires the animation to have the same labeling system as the springroll.Animator system. i.e. each animation must have a corresponding ending frame marked with a '_stop' and '_loop' suffixes, for instance: "walk" requires "walk_loop"
update
elapsed
Update the animation when framerate matches animation's framerate
elapsed
Number
Time in milleseconds since last frame update