public void onUpdate(Sprite sprite) {
timeDiff = Rokon.getTime() - _startTime;
scale = _startScale + ((float) timeDiff / (float) _time);
if (timeDiff > _time) {
setExpired(true);
if (_handler != null) _handler.onFinished();
}
sprite.setScale(scale, scale);
width = sprite.getWidth();
height = sprite.getHeight();
offsetX = (width / 2f) - (scale * (width / 2f));
offsetY = (height / 2f) - (scale * (height / 2f));
sprite.setOffset(offsetX, offsetY);
}
/**
* Shrinks a sprite in a given timeframe, and triggers BasicHandler.onFinished() when complete
*
* @param time milliseconds, time to reach 0x0 pixels
* @param handler onFinished() will be triggered when the Sprite reaches 0x0 pixels
*/
public Grow(int time, BasicHandler handler) {
if (handler != null) _handler = handler;
_time = time;
_startTime = Rokon.getTime();
}