Syntriax.Engine/Engine.Systems/Tween/EngineExtensions/TweenPrimitiveExtensions.cs

using Engine.Core;

namespace Engine.Systems.Tween;

public static class TweenPrimitiveExtensions
{
    private static readonly BoxedPool<float> boxedFloatPool = new(2);
    private static readonly BoxedPool<int> boxedIntPool = new(2);

    public static ITween TweenFloat(this float initialFloat, ITweenManager tweenManager, float duration, float targetFloat, System.Action<float> setMethod)
    {
        Boxed<float> boxedInitial = boxedFloatPool.Get(initialFloat);
        Boxed<float> boxedTarget = boxedFloatPool.Get(targetFloat);

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

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

        return tween;
    }

    public static ITween TweenInt(this int initialInt, ITweenManager tweenManager, float duration, int targetInt, System.Action<float> setMethod)
    {
        Boxed<int> boxedInitial = boxedIntPool.Get(initialInt);
        Boxed<int> boxedTarget = boxedIntPool.Get(targetInt);

        ITween tween = tweenManager.StartTween(duration, t => setMethod?.Invoke(boxedInitial.Value + (boxedTarget.Value - boxedInitial.Value) * t));

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

        return tween;
    }
}