using UnityEngine.UI;
using UnityEngine;

namespace Fruitomation.Game
{
    public class SceneControllerTransition : MonoBehaviour
    {
        private RectTransform CanvasRect;
        private Canvas AttachedCanvas;
        private RectTransform Rect;

        public float LerpValue;
        public bool GoingUp;
        
        public void OnCreation(Canvas canvas)
        {
            Image img = gameObject.AddComponent<Image>();
            img.color = Color.black;
            img.raycastTarget = true;
            
            CanvasRect = canvas.GetComponent<RectTransform>();
            Rect = transform.GetComponent<RectTransform>();
            AttachedCanvas = canvas;
        }

        private void Update()
        {
            Rect.anchoredPosition = GoingUp
                ? new Vector2(0, +(CanvasRect.sizeDelta.y / 2f))
                : new Vector2(0, -(CanvasRect.sizeDelta.y / 2f));
            Rect.sizeDelta = new Vector2
            (
                CanvasRect.sizeDelta.x,
                CanvasRect.sizeDelta.y * LerpValue * 2f
            );
        }
    }
}