public class FloatTween : MonoBehaviour
{
    public static Tween CreateTween(float duration, Action<float> OnUpdate, Action OnEnd)
    {
        Tween tween = new Tween();

        tween.DurationLeft = duration;
        tween.IsActive = false;
        tween.IsCanceled = false;
        tween.OnEndAction = OnEnd;
        tween.OnUpdateAction = OnUpdate;

        TweenerEngine.CreateTween(tween);

        return tween;
    }
}