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

public class AutoMoveCamera : MonoBehaviour
{
    public Camera camera;
    public GameObject parentTarget;
    
    public List<GameObject> showTargets; // 目标物体
    
    // 接近目标
    //public List<GameObject> targets; // 目标物体

    public static int schedule=0;

    public static int runState = 1;
    
    // Start is called before the first frame update
    void Start()
    {
        // StartCoroutine(autoMove());
    }

    private IEnumerator autoMove()
    {
        while (true)
        {
            // 平滑移动
            camera.transform.position = Vector3.Lerp(camera.transform.position, parentTarget.transform.GetChild(schedule).position, 0.05f );
            
            // 平滑旋转
            camera.transform.rotation = Quaternion.Slerp(camera.transform.rotation, parentTarget.transform.GetChild(schedule).rotation, 0.1f);

            // 检查是否接近目标位置和旋转
            if (Vector3.Distance(camera.transform.position, parentTarget.transform.GetChild(schedule).position) < 0.1f &&
                Quaternion.Angle(camera.transform.rotation, parentTarget.transform.GetChild(schedule).rotation) < 0.1f)
            {
                camera.transform.position = parentTarget.transform.GetChild(schedule).position;
                camera.transform.rotation = parentTarget.transform.GetChild(schedule).rotation;
                schedule++;
                if (schedule==parentTarget.transform.childCount)
                {
                    schedule = 0;
                }
                yield return new WaitForSeconds(2f); // 等待两秒
            }
        }
        // yield return new WaitForSeconds(2f); // 等待两秒
    }

    // Update is called once per frame
    void Update()
    {
        if (runState == 1)
        {
            // 平滑移动
            // camera.transform.position = Vector3.Lerp(camera.transform.position, parentTarget.transform.GetChild(schedule).position, 0.01f );
        
            // 目标位置
            Vector3 targetPosition = parentTarget.transform.GetChild(schedule).position;

            // 计算每帧的匀速移动
            float speed = 5f;  // 设定你希望摄像机的匀速速度（单位：每秒的移动距离）
            camera.transform.position = Vector3.MoveTowards(camera.transform.position, targetPosition, speed * Time.deltaTime);

            // 平滑旋转
            // camera.transform.rotation = Quaternion.Slerp(camera.transform.rotation, parentTarget.transform.GetChild(schedule).rotation, 0.01f);

            float rotationSpeed = 30f;  // 旋转速度
            camera.transform.rotation = Quaternion.RotateTowards(camera.transform.rotation, parentTarget.transform.GetChild(schedule).rotation, rotationSpeed * Time.deltaTime);
        
            // 检查是否接近目标位置和旋转
            if (Vector3.Distance(camera.transform.position, parentTarget.transform.GetChild(schedule).position) < 0.1f &&
                Quaternion.Angle(camera.transform.rotation, parentTarget.transform.GetChild(schedule).rotation) < 0.1f)
            {
                camera.transform.position = parentTarget.transform.GetChild(schedule).position;
                camera.transform.rotation = parentTarget.transform.GetChild(schedule).rotation;
                schedule++;
                if (schedule==parentTarget.transform.childCount)
                {
                    schedule = 0;
                    runState = 2;

                    foreach (GameObject showTarget in showTargets)
                    {
                        showTarget.SetActive(false);
                    }
                }
            
            }
        }
        
    }
}