using System.Collections;
using UnityEngine;

namespace Michsky.UI.Heat
{
	[AddComponentMenu("Heat UI/Animation/Shiny Image")]
	public class ShinyImage : MonoBehaviour
	{
		[Header("Resources")]
		[SerializeField]
		private RectTransform targetRect;

		[SerializeField]
		private RectTransform parentRect;

		[Header("Animation")]
		[SerializeField]
		[Range(0f, 4f)]
		private float delay = 0.25f;

		[SerializeField]
		[Range(0.25f, 4f)]
		private float animationSpeed = 1f;

		[SerializeField]
		private AnimationCurve animationCurve = new AnimationCurve(new Keyframe(0f, 0f), new Keyframe(1f, 1f));

		private void OnEnable()
		{
			StartShiny();
		}

		public void StartShiny()
		{
			base.gameObject.SetActive(value: true);
			if (targetRect == null)
			{
				targetRect = GetComponent<RectTransform>();
			}
			if (parentRect == null)
			{
				parentRect = base.transform.parent.GetComponent<RectTransform>();
			}
			StopCoroutine("ShinyAnimation");
			StartCoroutine("ShinyAnimation");
		}

		private IEnumerator ShinyAnimation()
		{
			float elapsedTime = 0f;
			Vector2 startPos = new Vector2(0f - parentRect.sizeDelta.x, targetRect.anchoredPosition.y);
			Vector2 endPos = new Vector2(parentRect.sizeDelta.x, targetRect.anchoredPosition.y);
			targetRect.anchoredPosition = startPos;
			while (targetRect.anchoredPosition.x < endPos.x - 0.1f)
			{
				elapsedTime += Time.unscaledDeltaTime;
				targetRect.anchoredPosition = new Vector2(Mathf.Lerp(startPos.x, endPos.x, animationCurve.Evaluate(elapsedTime * animationSpeed)), targetRect.anchoredPosition.y);
				yield return null;
			}
			targetRect.anchoredPosition = endPos;
			if (delay == 0f)
			{
				StartCoroutine("ShinyAnimation");
			}
			else
			{
				StartCoroutine("ShinyAnimationDelay");
			}
		}

		private IEnumerator ShinyAnimationDelay()
		{
			yield return new WaitForSecondsRealtime(delay);
			StartCoroutine("ShinyAnimation");
		}
	}
}