GyroCam.cs

Go to the documentation of this file.

using UnityEngine;
using System.Collections;
public class GyroCam : MonoBehaviour
{
    private bool gyroBool;
    private Gyroscope gyro;
    private Quaternion rotFix;

    private bool gyroAngleDetected = false;
    private Quaternion androidRotFix;
    private float angle = 0;


    public bool GyroAngleDetected 
    {
        get {
            return this.gyroAngleDetected;
        }
    }

    
    public void Start ()
    {
        Transform currentParent = transform.parent;
        GameObject camParent = new GameObject ("GyroCamParent");
        camParent.transform.position = transform.position;
        transform.parent = camParent.transform;
        GameObject camGrandparent = new GameObject ("GyroCamGrandParent");
        camGrandparent.transform.position = transform.position;
        camParent.transform.parent = camGrandparent.transform;
        camGrandparent.transform.parent = currentParent;
        
        #if UNITY_3_4
        gyroBool = Input.isGyroAvailable;
        #else
        gyroBool = SystemInfo.supportsGyroscope;
        #endif
        
        if (gyroBool) {
            
            gyro = Input.gyro;
            gyro.enabled = true;
            
            if (Screen.orientation == ScreenOrientation.LandscapeLeft) {
                camParent.transform.eulerAngles = new Vector3 (90, 180, 0);
            } else if (Screen.orientation == ScreenOrientation.Portrait) {
                camParent.transform.eulerAngles = new Vector3 (90, 180, 0);
            } else if (Screen.orientation == ScreenOrientation.PortraitUpsideDown) {
                camParent.transform.eulerAngles = new Vector3 (90, 180, 0);
            } else if (Screen.orientation == ScreenOrientation.LandscapeRight) {
                camParent.transform.eulerAngles = new Vector3 (90, 180, 0);
            } else {
                camParent.transform.eulerAngles = new Vector3 (90, 180, 0);
            }
            
            if (Screen.orientation == ScreenOrientation.LandscapeLeft) {
                rotFix = new Quaternion (0, 0, 1, 0);
            } else if (Screen.orientation == ScreenOrientation.Portrait) {
                rotFix = new Quaternion (0, 0, 1, 0);
            } else if (Screen.orientation == ScreenOrientation.PortraitUpsideDown) {
                rotFix = new Quaternion (0, 0, 1, 0);
            } else if (Screen.orientation == ScreenOrientation.LandscapeRight) {
                rotFix = new Quaternion (0, 0, 1, 0);
            } else {
                rotFix = new Quaternion (0, 0, 1, 0);
            }


            //Screen.sleepTimeout = 0;
        } else 
        {
            Debug.Log("No Gyro");
        }
    }
    

public void Update ()
    {
        if (gyroBool) {// & this.gameObject.camera.enabled
            {
                Quaternion quatMap;
                #if UNITY_IPHONE
                quatMap = gyro.attitude;
                #elif UNITY_ANDROID
                quatMap = new Quaternion(gyro.attitude.x,gyro.attitude.y,gyro.attitude.z,gyro.attitude.w);
//              androidRotFix = quatMap * rotFix;
//              angle  = Quaternion.Angle(transform.localRotation, androidRotFix);
//
//              if(angle > 1.5f)
//              {
//                  this.gyroAngleDetected =  true;
//              }
//              else
//              {
//                  this.gyroAngleDetected = false;
//              }

//              Debug.Log("Angle: " + gyroAngleDetected.ToString()+" " + angle.ToString());
                #endif
    
                transform.localRotation = quatMap*rotFix;
            }
        }
    }
//  
//  float scroll = 0f;
//  
//  public void OnGUI ()
//  {
//      if (gyroBool & this.gameObject.camera.enabled) {
//          // Add scrollbar to rotate around Y axis 0-360 for manual adjustment
//          scroll = GUI.VerticalScrollbar (new Rect (Screen.width - 35, 25, 30, Screen.height / 2), scroll, 0.1f, 0f, 0.9f);
//      }
//
//      string info = transform.position.ToString()+"  "+ transform.eulerAngles.ToString();
//
//      GUI.Label(new Rect(0,150,400,100), scroll.ToString());
//
//  }
}