ALPSVR Camera Roll & Yaw

Hi,

It's now some days I'm struggling with it, as the title says, I just want the gyro when tilting & yawing to rotate correctly in between some limits (-90° Y -> +90° Y, -60° X -> +60° X, -45° Z -> +45° Z).

For now, it's just moving forward & also keeps rotating, only when you keep your head rotating on itself, so it's not practical, in a situation were we sit on a chair.

 /************************************************************************
     ALPSNavigation provides an input-free navigation system
     
     Copyright (C) 2014  ALPS VR.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 ************************************************************************/
 
 using UnityEngine;
 using System.Collections;
 
 //[RequireComponent (typeof (CharacterController))]
 [System.Serializable]
 public class ALPSNavigation : MonoBehaviour {
 
     //=====================================================================================================
     // Attributes
     //=====================================================================================================
 
     /**Public**/
     public static float pitch;
     public static float yaw;
     public static float roll;
 
     public float speed = 3;
     public int vibration = 20;
 
     public float forwardLowerBound     = 20;
     public float forwardUpperBound     = 30;
     public float forwardLimit         = 50;
     public float backwardLowerBound = 20;
     public float backwardUpperBound = 30;
     public float backwardLimit         = 50;
 
     public static float ForwardLowerBound;
     public static float ForwardUpperBound;
     public static float BackwardLowerBound;
     public static float BackwardUpperBound;
     public static float ForwardLimit;
     public static float BackwardLimit;
 
     /**Private**/
     //private CharacterController controller;
     private bool moving;
     private GameObject head;
     
     private Transform target;
 
 
     //=====================================================================================================
     // Functions
     //=====================================================================================================
 
     /// <summary>
     /// Initializes navigation system.
     /// </summary>
     public void Start () {
 
         ForwardLowerBound = forwardLowerBound;
         ForwardUpperBound = forwardUpperBound;
         BackwardLowerBound = 360 - backwardLowerBound;
         BackwardUpperBound = 360 - backwardUpperBound;
         ForwardLimit = forwardLimit;
         BackwardLimit = 360 - backwardLimit;
 
         //controller = this.GetComponent ("CharacterController") as CharacterController;
         head = GameObject.Find ("ALPSHead");
 
         if (Application.platform == RuntimePlatform.Android) {
             moving = false;
         }
 
         target = head.transform;
     }
 
 
     /// <summary>
     /// Updates navigation state.
     /// </summary>
     public void Update () {
 
         if (!moving){
             moving = true;
         }
 
         print ("Rotation : " + target.rotation);
 
         pitch = head.transform.eulerAngles.x;
         print ("Pitch : " + pitch);
         
         yaw = head.transform.eulerAngles.y;
         print ("Yaw : " + yaw);
 
         //roll += Input.GetAxis("Roll");
         roll += head.transform.eulerAngles.z;
         print ("Roll : " + roll);
 
         head.transform.Translate(Vector3.forward * Time.deltaTime * speed);
 
     }
 
     /// <summary>
     /// Initialize Android ALPS Activity.
     /// </summary>
     public static float Progress(){
         if (pitch >= ForwardLowerBound && pitch <= ForwardUpperBound || pitch >= BackwardUpperBound && pitch <= BackwardLowerBound) {
             return 1f;        
         } else {
             if(pitch>=0 && pitch < ForwardLowerBound) return pitch/25f;
             else if(pitch<=360 && pitch > BackwardLowerBound)return (360-pitch)/25f;
             else if(pitch>ForwardUpperBound && pitch <= ForwardLimit)return (ForwardLimit-pitch)/25f;
             else if(pitch<BackwardUpperBound && pitch >= BackwardLimit)return (pitch-BackwardLimit)/25f;
             else return 0f;
         } 
     }
 }
 
 
     

It's a free VR SDK for VR : ALPSVR

Thanks in advance for any advice & help !