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


//md FUCK everthing
//史山，别学
public class mainBTN : MonoBehaviour
{
    public GameObject mainPanel;
    private RectTransform mainPanelRect;

    public GameObject BTN_0;
    public GameObject BTN_1;
    public GameObject BTN_2;
    public GameObject BTN_3;

    public GameObject BTN_0_0;
    public GameObject BTN_1_1;
    public GameObject BTN_2_2;
    public GameObject BTN_3_3;
    // Start is called before the first frame update
    void Start()
    {
        // 确保mainPanel不为空
        if (mainPanel == null)
        {
            Debug.LogError("mainPanel is not assigned!");
            return;
        }

        mainPanelRect = mainPanel.GetComponent<RectTransform>();

        // 添加按钮点击事件
        BTN_0.GetComponent<Button>().onClick.AddListener(() => MovePanel(0));
        BTN_1.GetComponent<Button>().onClick.AddListener(() => MovePanel(-2100));
        BTN_2.GetComponent<Button>().onClick.AddListener(() => MovePanel(-3760));
        BTN_3.GetComponent<Button>().onClick.AddListener(() => MovePanel(-5350));
    }

    // 统一的面板移动方法
    public void MovePanel(float targetX)
    {
        // 更新按钮的显示和隐藏
        BTN_0.SetActive(targetX != 0);
        BTN_1.SetActive(targetX != -2100);
        BTN_2.SetActive(targetX != -3760);
        BTN_3.SetActive(targetX != -5350);

        BTN_0_0.SetActive(targetX == 0);
        BTN_1_1.SetActive(targetX == -2100);
        BTN_2_2.SetActive(targetX == -3760);
        BTN_3_3.SetActive(targetX == -5350);

        // 启动协程，平滑移动 mainPanel
        StartCoroutine(SmoothMovePanel(targetX, 0.3f));
    }

    // 协程实现平滑移动
    private IEnumerator SmoothMovePanel(float targetX, float duration)
    {
        Vector2 startPosition = mainPanelRect.anchoredPosition;
        Vector2 targetPosition = new Vector2(targetX, startPosition.y);
        float elapsedTime = 0f;

        while (elapsedTime < duration)
        {
            // 计算当前进度
            float t = elapsedTime / duration;
            // 逐渐改变 position
            mainPanelRect.anchoredPosition = Vector2.Lerp(startPosition, targetPosition, t);

            // 增加时间
            elapsedTime += Time.deltaTime;
            yield return null;
        }

        // 最终确保位置为目标位置
        mainPanelRect.anchoredPosition = targetPosition;
    }

}