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

public class AutoRoaming : MonoBehaviour
{
    /// <summary>
    /// 是否自动漫游
    /// </summary>
    public bool autoRoaming;
    /// <summary>
    /// 自动漫游旋转轴
    /// </summary>
    private Vector3 RotateAng = Vector3.up;
    [Range(-10, 10), Tooltip("漫游速度")]
    public float roamSpeed = 5;
    [Range(0, 1), Tooltip("视角回正速度")]
    public float ResetVisualSpeed = 0.5f;

    private Vector3 RoamingPosition;
    private Vector3 RoamingAngle;

    private void Start()
    {
        RoamingPosition = Camera.main.transform.position;
        RoamingAngle = Camera.main.transform.eulerAngles;
    }

    void LateUpdate()
    {
        if (autoRoaming)
            transform.Rotate(RotateAng * roamSpeed * Time.deltaTime);
    }

    /// <summary>
    /// 开始漫游
    /// </summary>
    /// <param name="callback"></param>
    /// <param name="onStartRoming">开始漫游后回调</param>
    public void StartRoam(System.Action callback = null, System.Action onStartRoming = null)
    {
        if (autoRoaming) return;
        callback?.Invoke();
        int count = Camera.main.transform.DOKill();
        Debug.Log("Kill count: " + count);
        Camera.main.transform.DORotate(RoamingAngle, 0.4f);
        Camera.main.transform.DOMove(RoamingPosition, 0.4f).OnComplete(() =>
        {
            autoRoaming = true;
            CameraController.instance.SetTransform(RoamingPosition, RoamingAngle);
            onStartRoming?.Invoke();
        });
    }

    /// <summary>
    /// 
    /// </summary>
    ///<param name="reset">是否重置角度</param>
    ///<param name="callback"></param>
    ///<param name="onStopRoming">重置角度后回调</param>
    public void StopRoam(bool reset = false, System.Action callback = null, System.Action onStopRoming = null)
    {
        if (!autoRoaming) return;
        callback?.Invoke();
        autoRoaming = false;
        if (reset)
        {
            transform.DORotate(Vector3.zero, ResetVisualSpeed).OnComplete(() => { onStopRoming?.Invoke(); });
        }
    }
}