仿照NGUI封装 DoTween功能系列（二）-TweenColor

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using System.Collections;
using System.Collections.Generic;
using DG.Tweening;

namespace UGUITweener
{
    [ExecuteInEditMode]
    public class TweenColor : TweenerSetting
    {
        public Color from = Color.white;
        public Color to = Color.white;

        private Graphic mSr;
        
         public override void TweenPlay(bool value)
        {
            Color startColor = value ? from : to;
            Color endColor = value ? to : from;
            mSr.color = startColor;
            mSr.DOKill();
            tween = mSr.DOColor(endColor, duration).OnComplete(unityEvent.Invoke);
            SetTweenData();
        }

        private void OnDestroy()
        {
            if (mSr)
                mSr.DOKill();
        }

        private void OnDisable()
        {
            if (mSr)
                mSr.DOKill();
        }

        public override void SetStartToCurrentValue()
        {
            mSr =(Graphic)GetComponent<Image>()?(Graphic)GetComponent<Image>(): (Graphic)GetComponent<RawImage>();
            from=mSr.color;
        }
#if UNITY_EDITOR

        [ContextMenu("设置 From")]
        private void SetFromColor()
        {
            from = mSr.color;
        }

        [ContextMenu("设置 Image Color")]
        private void SetImageColor()
        {
            if (mSr)
            {
                mSr.color = from;
            }
        }
#endif
    }
}

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