using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class SlideShow : MonoBehaviour
{
    public float x;
    public float y;
    public HttpController httpController;
    // 是否向下移动
    public bool down=true;
    
    // 是否开始旋转
    private bool isRotate = true;
    //移动的value值
    private float value;
    //每个子物体的位置坐标（长度为子物体总量）
    private Vector2[] vc;
    //是否开始移动
    bool Move;
    
    
   
    void OnEnable()
    {
        /*GridLayoutGroup gridLayoutGroup = gameObject.GetComponent<GridLayoutGroup>();
        x = gridLayoutGroup.cellSize.x/2f;
        y = gridLayoutGroup.cellSize.y;*/
        httpController = gameObject.GetComponent<HttpController>();
        
        value = 0;
        Move = true;
        StartCoroutine(ExecuteEveryTwoSeconds());
    }
    
    public IEnumerator ExecuteEveryTwoSeconds()
    {
        yield return new WaitForSeconds(4f);
        while (isRotate) // 无限循环
        {
            // 执行事件
            if (value == 0)
            {
                vc=new Vector2[transform.childCount];
                for (int i = 0; i < transform.childCount; i++)
                {
                    vc[i] = transform.GetChild(i).localPosition;
                }
                Move = true;
                StartCoroutine(MoveR());
            }
            // 等待2秒
            yield return new WaitForSeconds(4f);
            
        }
    }

    IEnumerator MoveR()
    {
        while (Move)
        {
            yield return new WaitForEndOfFrame();
            for (int i = 0; i < transform.childCount; i++)
            {
                if (value > 1)
                {
                    transform.GetChild(0).SetAsLastSibling();
                    value = 0;
                    Move = false;
                    if(httpController!=null)httpController.UpdateIndex();
                    break;
                }
                
                value += Time.deltaTime * 0.5f;
                //new Vector2(vc[i].x + 1440, 0)：在当前初始位置上向右移动1440
                print("移动开始");
                if (down)
                {
                    transform.GetChild(i).localPosition = Vector2.Lerp(vc[i], new Vector2(x, vc[i].y + y), value);
                }
                else
                {
                    // 向右移动         
                    transform.GetChild(i).localPosition = Vector2.Lerp(vc[i], new Vector2(vc[i].x - x, y), value);
                }


            }
        }
    }
}