using UnityEngine;

public class UITweenAlpha : MonoBehaviour
{
	public delegate void FinishCallBack(UITweenAlpha in_FadeObject);

	public AnimationCurve _curve;

	public bool _autoStart;

	public float _from;

	public float _to;

	public float _delayTime;

	public float _endTime;

	public bool _loop;

	public UITweenAlpha[] LinkTargets;

	private UIPanel _panel;

	private UIWidget _uiWidget;

	private UIRect _rect;

	private bool _isPlay;

	private bool _isEnd;

	private bool _isPlayFoward;

	private bool _initialized;

	public FinishCallBack _finishCallBack { get; set; }

	public float Timer { get; set; }

	private void Awake()
	{
		if (!_initialized)
		{
			Initialize();
		}
	}

	private void Initialize()
	{
		_initialized = true;
		_panel = base.gameObject.GetComponent<UIPanel>();
		if (_panel != null)
		{
			_rect = _panel;
		}
		else
		{
			_uiWidget = base.gameObject.GetComponent<UIWidget>();
			if (_uiWidget == null && _panel == null)
			{
				_uiWidget = base.gameObject.AddComponent<UIWidget>();
			}
			_rect = _uiWidget;
		}
		if (_autoStart)
		{
			PlayForward(isReset: true);
		}
		if (LinkTargets == null)
		{
			return;
		}
		for (int i = 0; i < LinkTargets.Length; i++)
		{
			if (LinkTargets[i].isActiveAndEnabled)
			{
				Timer = LinkTargets[i].Timer;
				break;
			}
		}
	}

	public void PlayForward(bool isReset = false)
	{
		if (!base.gameObject.activeSelf)
		{
			return;
		}
		if (!_initialized)
		{
			Initialize();
		}
		if (_curve == null)
		{
			return;
		}
		_isPlayFoward = true;
		if (isReset)
		{
			_rect.alpha = _from;
		}
		if (!_loop)
		{
			if (_rect.alpha != _to || isReset)
			{
				_isPlay = true;
				Timer = 0f;
			}
			else
			{
				_isEnd = true;
			}
		}
		else
		{
			_isPlay = true;
			Timer = 0f;
		}
	}

	public void End()
	{
		if (_isPlay)
		{
			_isPlay = false;
			if (_finishCallBack != null)
			{
				_finishCallBack(this);
			}
		}
	}
}