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

public class Compass : MonoBehaviour
{
    [SerializeField] Text text;
    [SerializeField] Text text1;
    [SerializeField] Text text2;
    [SerializeField] Text text3;
    [SerializeField] Image compass;
    [SerializeField] Transform scene;
    [SerializeField] Text sceneText;
    public LineRenderer X;
    public LineRenderer Z;
    List<float> list_rot;
    bool state;
    float dushu = 0;//记录北方度数
    float tempdushu = 0;//临时记录数据来判断角度变化是否大于2
    // Update is called once per frame
    // Use this for initialization
    void Start()
    {
        list_rot = new List<float>();
        Input.compass.enabled = true;
        showLine();
        state = true;
    }
    //百度一下利用Input.compass实现指北针


    //OnGUI的调用次数
    void OnGUI()
    {
        //Input.location.Start();
        //地理北极就是北方，也是磁南极
        //GUILayout.Label(" rawVector: " + Input.compass.rawVector.ToString() //用microteslas测量的原始地磁数据
        //    + " trueHeading: " + Input.compass.trueHeading.ToString()   //相对应地理北极的度数
        //    + " headingAccuracy: " + Input.compass.headingAccuracy.ToString() //标题度数的准确度
        //    + " magneticHeading: " + Input.compass.magneticHeading.ToString(), GUILayout.Width(5000), GUILayout.Width(200));//相对于磁北极的度数
    }
  


    
    void FixedUpdate()
    {
        //如何确定参照物
        //当度数为  358-2度  手机的正前方就是北方



        //Input.location.Start();
        //text.text = " rawVector: " + Input.compass.rawVector.ToString();//用microteslas测量的原始地磁数据

        ////相对应地理北极的度数 手机头正对方向  北方360/0   东方90     西方180    南方270  
        //text1.text = " trueHeading: " + Input.compass.trueHeading.ToString();

        //text2.text = " headingAccuracy: " + Input.compass.headingAccuracy.ToString(); //标题度数的准确度
        //text3.text = " magneticHeading: " + Input.compass.magneticHeading.ToString(); //相对于磁北极的度数


        /*trueHeading          image/z
      北方358  360 0 2                0
       东方88  92                   90
       南方269 272                 270
       西方180                    180
        */

        //为防止抖动  度数变化超过二的时候才赋值
        //if (Mathf.Abs(tempdushu - dushu) > 3)
        //{
        //    //tempdushu = dushu;
        //    //compass.transform.eulerAngles = new Vector3(0, 0, dushu);
        //    scene.eulerAngles = new Vector3(0, dushu, 0);
        //    sceneText.text = dushu.ToString();
        //}
        if (list_rot.Count < 40)
        {
            list_rot.Add(Input.compass.trueHeading);
        }
        else
       if (API_SVR.GetHead() != null && state)
        {
            state = false;

            dushu = list_rot.Average();
            // textMesh.text = dushu.ToString();

            scene.eulerAngles = new Vector3(0, 355f - dushu, 0);

        }
        //if (API_SVR.GetHead()!=null && state)
        //{
        //    state = false;

        //    dushu = Input.compass.trueHeading;
        //    text.text = dushu.ToString();
        //    scene.eulerAngles = new Vector3(0, 359.9f - dushu, 0);

        //}
        text.text = scene.eulerAngles.y.ToString();
        showLine();

    }


    void showLine()
    {
        X.positionCount = 2;
        X.SetPosition(0, transform.position + new Vector3(10, -1, 0));
        X.SetPosition(1, transform.position - new Vector3(10, 1, 0));

        Z.positionCount = 2;
        Z.SetPosition(0, transform.position + new Vector3(0, -1, 10));
        Z.SetPosition(1, transform.position - new Vector3(0, 1, 10));
    }
}