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

public class UIFollow : MonoBehaviour
{
    public ScenesManager.SceneType type;
   public float dis;
   public float angle;

    public Vector3 pos;

    private bool state = true;

    private void OnEnable()
    {
        state = true;
    }
    void Start()
    {

        // pos = new Vector3(OpenXRCamera.Instance.transform.position.x, 1.5f,OpenXRCamera.Instance.head.transform.position.z + (OpenXRCamera.Instance.transform.forward * 1.5f).z);
        //pos = HeadBtnManager.Instance.transform.position;
        //Show(pos);
    }

    private void Awake()
    {
        HeadBtnManager.Instance.uiFollow = this;
    }

    // Update is called once per frame
    void Update()
    {
        if(state)
        {
            dis = Vector3.Distance(new Vector3(OpenXRCamera.Instance.head.transform.position.x, 0, OpenXRCamera.Instance.head.transform.position.z), new Vector3(transform.position.x, 0, transform.position.z));

            angle = Vector3.Angle(OpenXRCamera.Instance.head.GetComponent<Camera>().transform.forward, transform.position - OpenXRCamera.Instance.head.transform.position);
            //  Debug.Log("UIFollow  DIS  " + dis  + "   OpenXRCamera "+OpenXRCamera.Instance.transform.position+"   This "+transform.position);
            if (dis > 3 || (dis > 2.5f && angle > 100))
            {

                Hide();
                // 
            }
        }
       
    }


    // 隐藏

    public void Hide()
    {
        state = false;
        // gameObject.SetActive(false);
        transform.position = new Vector3(0,0,10000);
        HeadBtnManager.Instance.ShowResetBtn(type, this);
    }




    // 显示 
    public void Show( Vector3 pos  )
    {
        if (type == ScenesManager.SceneType.ShowRTCHistory)
            pos -= new Vector3(0, 0.5f, 0);

        transform.position = pos;
        transform.eulerAngles = new Vector3(0,OpenXRCamera.Instance.head.transform.eulerAngles.y, 0);
        // gameObject.SetActive(true);
        if (type == ScenesManager.SceneType.ShowRTC)
            ShowRoom.Instance.ResetPosition();

       
        state = true;
    }
}