using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections;

public class BottomBarButtonUIAnimator : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
    private RectTransform rectTransform;
    private Vector3 originalScale;
    public float clickScale = 1.2f;  // 点击时放大的比例
    public float clickDuration = 0.1f; // 放大缩小的时间

    private void Awake()
    {
        rectTransform = GetComponent<RectTransform>();
        originalScale = rectTransform.localScale;  // 记录初始大小
    }

    public void OnPointerDown(PointerEventData eventData)
    {
        StopAllCoroutines(); // 防止多次点击冲突
        StartCoroutine(ScaleButton(originalScale * clickScale));
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        StopAllCoroutines();
        StartCoroutine(ScaleButton(originalScale));
    }

    public void FakeClickEffect()
    {
        StopAllCoroutines();
        StartCoroutine(FakeClickCoroutine());
    }

    private IEnumerator FakeClickCoroutine()
    {
        yield return StartCoroutine(ScaleButton(originalScale * clickScale));  // 模拟按下
        yield return new WaitForSeconds(clickDuration); // 等待按住时间
        yield return StartCoroutine(ScaleButton(originalScale));  // 模拟松开
    }

    private IEnumerator ScaleButton(Vector3 targetScale)
    {
        Vector3 startScale = rectTransform.localScale;
        float elapsedTime = 0f;

        while (elapsedTime < clickDuration)
        {
            elapsedTime += Time.deltaTime;
            rectTransform.localScale = Vector3.Lerp(startScale, targetScale, elapsedTime / clickDuration);
            yield return null;
        }

        rectTransform.localScale = targetScale; // 确保最终大小正确
    }
}