using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using ShadowKit.Action;

public class VufoiraImageTarget : DefaultTrackableEventHandler
{

    [SerializeField]
    private Transform ObjTrans;//这个是需要根据图片位置更新自己位置的UI
    [SerializeField]
    private Transform Point;//相对的节点位置

    private Vector3 DefaultPosition;//默认的起始位置
    private Quaternion DefaultQuaternion;//默认的角度

    private bool is_found;//
    private bool is_tracking;// true 表示需要追踪识别

    protected override void Start()
    {
        base.Start();
        DefaultPosition = ObjTrans.position;//先记录下来初始的位置
        DefaultQuaternion = ObjTrans.rotation;//先记录下来初始的朝向
    }

    protected override void OnDestroy()
    {
        base.OnDestroy();
    }

    protected override void OnTrackingFound()
    {
        base.OnTrackingFound();
        is_found = true;
    }

    protected override void OnTrackingLost()
    {
        base.OnTrackingLost();
        is_found = false;
    }

    private void LateUpdate()
    {
        if(is_found)
        {
            if(is_tracking)
            {
                RefreshPos();
                is_tracking = false;//只需要定位一次
            }
        }
    }

    private Vector3 headPos;
    private void RefreshPos()
    {
        ObjTrans.position = Point.transform.position;
        ObjTrans.localScale = Vector3.one * 0.5f;
        headPos = FollowTarget.position;
        headPos.y = ObjTrans.position.y;
        ObjTrans.rotation = Quaternion.LookRotation(headPos - ObjTrans.position);
    }

    public void ResetPos()
    {
        CDebug.Log("关闭识别后的重置位置 ResetPos");
        ObjTrans.localScale = Vector3.one;
        ObjTrans.rotation = DefaultQuaternion;
        ObjTrans.position = DefaultPosition;
        SvrPlugin.Instance.RecenterTracking();
    }

    public void SetTrack(bool isTrack)
    {
        is_tracking = isTrack;
        if(!isTrack)
        {
            ResetPos();
        }
    }

    private Transform FollowTarget
    {
        get
        {
            if (Camera.main != null)
            {
                //return Camera.main.transform;
            }
            if (SvrManager.Instance.head != null)
            {
                return SvrManager.Instance.head.transform;
            }
            return null;
        }
    }
}