code: public S animate(Timer timer)
  	{
  		long elapsed = timer.elapsedTime() - Timer.tickToTime(delay);
  		started = elapsed > transform.getDelay();
  		finished = elapsed > transform.totalDuration() && transform.getLoops() != -1;
  
  		if (!started && !renderBefore)
  			return null;
  		if (finished && !renderAfter)
  			return null;
  
  		transform.transform(transformable, elapsed);
  		return transformable;
  	}
docs: Animates this {@link Animation}.<br>
  Sets the {@link #started} and {@link #finished} status.
  
  @param timer the timer
  @return the s