using UnityEngine;
using LuaInterface;

public class LuaUIBtnScale : MonoBehaviour
{
    public float floStart = 1;
    public float floEnd = 1;
    public float floTime = 0;
    public float duration = 1f; // 动画持续时间
    bool booPlay;
    public int distance = 1;

    private LuaFunction finishCallback;
    private bool isScalingDown; // 判断是缩小还是放大动画

    void Update()
    {
        if (booPlay)
        {
            floTime += Time.deltaTime * distance;

            // 计算当前进度 (0到1之间)
            float progress = Mathf.Clamp01(floTime / duration);

            // 插值计算当前缩放值
            float currentScale;
            if (isScalingDown)
            {
                currentScale = Mathf.Lerp(floStart, floEnd, progress);
            }
            else
            {
                currentScale = Mathf.Lerp(floStart, floEnd, progress);
            }

            // 应用缩放
            transform.localScale = Vector3.one * currentScale;

            // 结束条件判断
            if ((distance > 0 && floTime >= duration) || (distance < 0 && floTime <= 0))
            {
                // 确保最终缩放值准确
                transform.localScale = Vector3.one * (distance > 0 ? floEnd : floStart);

                // 动画结束
                booPlay = false;
                floTime = distance > 0 ? duration : 0;

                // 执行完成回调
                if (finishCallback != null)
                {
                    finishCallback.Call();
                    finishCallback.Dispose();
                    finishCallback = null;
                }
            }
        }
    }

    public void AddPlay(LuaFunction funcFinish)
    {
        // 保存回调函数
        finishCallback = funcFinish;

        // 判断是缩小还是放大动画
        isScalingDown = (floStart > floEnd);

        // 根据动画方向设置初始时间
        if (distance > 0)
        {
            floTime = 0; // 正向播放从0开始
        }
        else
        {
            floTime = duration; // 反向播放从duration开始
        }

        // 设置初始缩放
        transform.localScale = Vector3.one * (distance > 0 ? floStart : floEnd);

        booPlay = true;
    }

    // 提供一个简单的方法来播放缩放动画
    public void PlayScale(float start, float end, float animDuration, LuaFunction callback)
    {
        floStart = start;
        floEnd = end;
        duration = animDuration;
        AddPlay(callback);
    }

    // 在对象销毁时清理Lua函数
    void OnDestroy()
    {
        if (finishCallback != null)
        {
            finishCallback.Dispose();
            finishCallback = null;
        }
    }
}