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

/// <summary>
/// UI提示
/// </summary>
public class ImageTips : MonoBehaviour
{
    public Image image; // UI Image组件
    private RectTransform selfRect;
    private Tween tween;

    public void OnInit()
    {
        selfRect = GetComponent<RectTransform>();
        HideTips();
    }

    /// <summary>
    /// 使用sizeDelta缩放
    /// </summary>
    /// <param name="target"></param>
    public void ShowTips(RectTransform target)
    {
        gameObject.SetActive(true);
        image.enabled = true;
        selfRect.SetParent(target);
        selfRect.anchoredPosition = Vector2.zero;
        selfRect.localScale = Vector2.one; //HQB高亮大小不定，调整缩放
        selfRect.sizeDelta = new Vector2(target.sizeDelta.x + 20f, target.sizeDelta.y + 20f);
        tween = DOVirtual.Float(1, 0.3f, 0.5f, t =>
        {
            Color finalColor = image.color;
            finalColor.a = t;
            image.color = finalColor;
        }).SetLoops(-1, LoopType.Yoyo); //HQB 原始数值：1,0.2,1
    }

    /// <summary>
    /// 针对父物体锚点在四个角的情况
    /// </summary>
    /// <param name="target"></param>
    public void ShowTipsExtend(RectTransform target)
    {
        gameObject.SetActive(true);
        image.enabled = true;
        selfRect.anchorMax = target.anchorMax;
        selfRect.anchorMin = target.anchorMin;
        selfRect.SetParent(target);
        selfRect.anchoredPosition = target.anchoredPosition;
        selfRect.offsetMin = new Vector2(-25f, -25f);
        selfRect.offsetMax = new Vector2(25f, 25f);
        ;
        //selfRect.localScale = Vector2.one;//HQB高亮大小不定，调整缩放
        tween = DOVirtual.Float(1, 0.3f, 0.5f, t =>
        {
            Color finalColor = image.color;
            finalColor.a = t;
            image.color = finalColor;
        }).SetLoops(-1, LoopType.Yoyo); //HQB 原始数值：1,0.2,1
    }

    public void HideTips()
    {
        if (tween != null)
            tween.Kill(true);
        if (transform.parent != null)
            transform.parent = null;
        gameObject.SetActive(false);
    }
}