using Engine.Core;

namespace Engine.Systems.Tween;

public static class TweenRay2DExtensions
{
    private static readonly BoxedPool<Ray2D> boxedRay2DPool = new(2);

    public static ITween TweenRay2D(this Ray2D initialRay2D, ITweenManager tweenManager, float duration, Ray2D targetRay2D, System.Action<Ray2D> setMethod)
    {
        Boxed<Ray2D> boxedInitial = boxedRay2DPool.Get(initialRay2D);
        Boxed<Ray2D> boxedTarget = boxedRay2DPool.Get(targetRay2D);

        ITween tween = tweenManager.StartTween(duration,
            t => setMethod?.Invoke(
                new Ray2D(
                    boxedInitial.Value.Origin.Lerp(boxedTarget.Value.Origin, t),
                    boxedInitial.Value.Direction.Lerp(boxedTarget.Value.Direction, t).Normalized
                )
            )
        );

        tween.OnComplete(() =>
        {
            boxedRay2DPool.Return(boxedInitial);
            boxedRay2DPool.Return(boxedTarget);
        });

        return tween;
    }
}