using UnityEngine;
using System.Collections;
using DG.Tweening;
using System.Collections.Generic;  

/// <summary>
/// UI的doTween插件，搞一个UI的弹出或者效果
/// </summary>
public class UIDoTweenAnimation : MonoBehaviour
{
    /// <summary>
    /// 
    /// </summary>
    private RectTransform panelTransform;

    /// <summary>
    /// 动画
    /// </summary>
    private Tweener tweener = null;

    /// <summary>
    /// 特效种类,0就是从下往上,1是从左往右,2是从右往左.
    /// </summary>
    private int KindOfEffect;
    
    /// <summary>
    /// 
    /// </summary>
    public void OnEnable()
    {
        ////开始播放动画
        ////启动动画播放
        
    }

    private void Awake()
    {
        children = new Dictionary<GameObject, Vector3>();

        for (int i = 0; i < this.transform.childCount; i++)
        {
            GameObject go = this.transform.GetChild(i).gameObject;
            children.Add(go, go.transform.localPosition);
        }
    }

    /// <summary>
    /// 
    /// </summary>
    private Dictionary<GameObject, Vector3> children = new Dictionary<GameObject, Vector3>();

    /// <summary>
    /// 
    /// </summary>
    private void StartPlayDoTween()
    {
        if (tweener != null && tweener.IsPlaying())
        {
            tweener.Kill();
            ResetToDefaultPos();
        }

        for (int i = 0; i < this.transform.childCount; i++)
        {
            GameObject g = this.transform.GetChild(i).gameObject;

            RectTransform panelTransform = g.GetComponent<RectTransform>();
            Vector3 destPos = children[g];

            if (KindOfEffect == 0)
            {
                transform.localPosition = new Vector3(destPos.x, -1920, destPos.z);
                tweener = panelTransform.DOLocalMove(destPos, 0.3f);
                tweener.SetEase(Ease.Linear);//动画曲线  
                tweener.SetDelay(i * 0.01f);
            }
            else if (KindOfEffect == 1)
            {
                transform.localPosition = new Vector3((destPos.x - 1080), destPos.y, destPos.z);
                tweener = panelTransform.DOLocalMove(destPos, 0.2f);
                tweener.SetEase(Ease.InOutQuad);//动画曲线  
                tweener.SetDelay(i * 0.02f);
            }
            else if (KindOfEffect == 2)
            {
                transform.localPosition = new Vector3((destPos.x + 1080), destPos.y, destPos.z);
                tweener = panelTransform.DOLocalMove(destPos, 0.2f);
                tweener.SetEase(Ease.InOutQuad);//动画曲线  
                tweener.SetDelay(i * 0.1f);
            }
        }
    }

    /// <summary>
    /// 
    /// </summary>
    public void OnDisable()
    {
        if (tweener != null && tweener.IsPlaying())
        {
            tweener.Kill();
        }

        ResetToDefaultPos();
    }

    /// <summary>
    /// 
    /// </summary>
    public void OnDestory()
    {
        panelTransform.DOKill();
    }

    /// <summary>
    /// 设置UI到默认位置
    /// </summary>
    private void ResetToDefaultPos()
    {
        foreach (GameObject g in children.Keys)
        {
           RectTransform tc =  g.GetComponent<RectTransform>();
           if (tc != null)
           {
               tc.anchoredPosition3D = children[g];
           }
        }
    }
}