using System;
using UnityEngine;
//相机陀螺仪
public class GyroCam : MonoBehaviour
{
//相机父物体
private GameObject camParent;
//是否Debug
public bool debug;
//陀螺仪
private Gyroscope gyro;
//是否调用陀螺仪
private bool gyroBool;
//是否有GPS
private bool hasGPS;
//朝向设置
public float northOffset;
//选择修正
private Quaternion rotFix;
//速度
public float speed;
//触摸旋转
// public FreeCam TouchRotate;

public void Awake()
{
    //支持位置服务
    this.hasGPS = SystemInfo.supportsLocationService;

    Debug.Log(hasGPS);
    //父物体的位置
    Transform parent = base.transform.parent;

    Debug.Log(parent);

    GameObject obj2 = new GameObject("GyroCamParent")
    {
        transform = { position = base.transform.position }
    };

    Debug.Log(obj2);

    base.transform.parent = obj2.transform;

    GameObject obj3 = new GameObject("GyroCamGrandParent")
    {
        transform = { position = base.transform.position }
    };

    obj2.transform.parent = obj3.transform;

    obj3.transform.parent = parent;
    //支持陀螺仪
    this.gyroBool = SystemInfo.supportsGyroscope;

    if (this.gyroBool)

    {
        this.gyro = Input.gyro;

        this.gyro.enabled = true;

        if (Screen.orientation == ScreenOrientation.LandscapeLeft)
        {
            obj2.transform.eulerAngles = new Vector3(90f, 180f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.Portrait)
        {
            obj2.transform.eulerAngles = new Vector3(90f, 180f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.PortraitUpsideDown)
        {
            obj2.transform.eulerAngles = new Vector3(90f, 180f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.LandscapeRight)
        {
            obj2.transform.eulerAngles = new Vector3(90f, 180f, 0f);
        }
        else
        {
            obj2.transform.eulerAngles = new Vector3(90f, 180f, 0f);
        }
        if (Screen.orientation == ScreenOrientation.LandscapeLeft)
        {
            this.rotFix = new Quaternion(0f, 0f, 1f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.Portrait)
        {
            this.rotFix = new Quaternion(0f, 0f, 1f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.PortraitUpsideDown)
        {
            this.rotFix = new Quaternion(0f, 0f, 1f, 0f);
        }
        else if (Screen.orientation == ScreenOrientation.LandscapeRight)
        {
            this.rotFix = new Quaternion(0f, 0f, 1f, 0f);
        }
        else
        {
            this.rotFix = new Quaternion(0f, 0f, 1f, 0f);
        }
    }
    else
    {
        //触摸旋转（没有陀螺仪,使用触摸）
       // this.TouchRotate.enabled = true;
        Debug.Log("No Gyroscope, using touch");
    }
    base.transform.parent.eulerAngles = new Vector3(base.transform.parent.eulerAngles.x, this.northOffset, base.transform.parent.eulerAngles.z);
}

private void OnDisable()
{
    //如果还有GPS功能，定位状态没有关闭
    if (this.hasGPS && (Input.location.status != LocationServiceStatus.Stopped))
    {
        //位置服务关闭
        Input.location.Stop();
    }
}

private void OnEnable()
{
    //如果还有GPS功能，定位状态没有初始化和没有运行
    if ((this.hasGPS && (Input.location.status != LocationServiceStatus.Initializing)) && (Input.location.status != LocationServiceStatus.Running))
    {
        //位置服务开启
        Input.location.Start();
    }
}

public void Update()
{
    if (this.gyroBool)
    {
        Quaternion quaternion = new Quaternion(this.gyro.attitude.x, this.gyro.attitude.y, this.gyro.attitude.z, this.gyro.attitude.w);
        base.transform.localRotation = Quaternion.Slerp(base.transform.localRotation, quaternion * this.rotFix, Time.deltaTime * this.speed);
    }
}

}