FlxTween can be used to change values over time following a number of available curve functions.
Using tween allows you to pass any kind of object, and several parameters that you want to tween over.
// create a tween
FlxTween.tween(myObject, {parameter: destinationValue}, duration, {type: tweenType, easing: FlxEase: easeFunction});
package;
import flixel.FlxG;
import flixel.FlxSprite;
import flixel.FlxState;
import flixel.tweens.FlxEase;
import flixel.tweens.FlxTween;
class PlayState extends FlxState
{
var sprite:FlxSprite;
override public function create()
{
sprite = new FlxSprite("assets/sprite.png");
sprite.x = sprite.y = 50;
add(sprite);
bgColor = 0;
super.create();
FlxTween.tween(sprite,
{x: FlxG.width - sprite.width - 50, y: FlxG.height - sprite.height - 50, angle: 360},
3, {type: FlxTweenType.PINGPONG, ease: FlxEase.sineInOut});
}
}