using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;
using System;
using Sirenix.OdinInspector;
using UnityEngine.EventSystems;

public class ScrollInformation : MonoBehaviour,IPointerEnterHandler,IPointerExitHandler
{
    [LabelText("速度")]
    public float Speed;

    [LabelText("要滚动的目标")]
    public RectTransform Information;

    //移动物体与父物体宽度差值
    float tmpWidth = 0;
    /// <summary>
    /// 开启移动
    /// </summary>
    bool openMove;
    
    void Start()
    {
        RectTransform tmpParentRectTransform = transform.GetComponent<RectTransform>();

        tmpWidth = Information.rect.width - tmpParentRectTransform.rect.width;
    }

    void FixedUpdate()
    {
        ScrollResult();
    }

    void ScrollResult()
    {
        if (!openMove) return;

        if (tmpWidth > 0)
        {
            float tmpX = Information.anchoredPosition.x - Time.fixedDeltaTime * Speed;
            
            Information.SetLocalPositionX(tmpX);

            if (Information.anchoredPosition.x < -tmpWidth)
            {
                Information.SetLocalPositionX(0);
            }
        }
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        openMove = true;
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        openMove = false;
        Information.SetLocalPositionX(0);
    }
}