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Question by mohammedshijin · Dec 18, 2016 at 11:33 AM · androidjavascriptinputaccelerationinput.acceleration

How to calibrate accelerometer according to start ?

I think i have a "should be" working code but i don't know why it is not working. With this code too i have to hold the phone straight to get it to work. My present code is below. Any help is appreciated :)

 #pragma strict
 var speed : float;
 var accelerationX : float = 0;
 var accelerationZ : float = 0;
 var zatstart : float = 0;
 function Start () {
     zatstart = Input.acceleration.z;
 }
 
 function Update () {
     var dir : float;
     dir = (Input.acceleration.z-zatstart);
     if (dir > 1){
         dir = 1;
     }
     accelerationX = Input.acceleration.x;
     accelerationZ = -1*(dir);
     GetComponent.<Rigidbody>().AddRelativeForce(new Vector3(accelerationX * speed,0,accelerationZ * speed));
 }

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avatar image tusadi · Dec 18, 2016 at 11:48 AM 0
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Have you tried using AddForce ins$$anonymous$$d of AddRelativeForce ?

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Answer by tusadi · Dec 18, 2016 at 12:11 PM

I had modified the Roll-a-ball tutorial by using my smartphone's accelerometer.This is what I had done

     public float speed = 6;
     private RigidBody rb;
     private float zatstart = 0;
     private float xatstart = 0;
     private float hzMovement = 0, vtMovement = 0;
     public Button calibrate;
     public Toggle accel;

     void Start(){
                 calib();
                 rb = GetComponent<Rigidbody> ();
    }
     void Update(){
                 calibrate.onClick.AddListener (calib);
                 if (accel.isOn) {
                     hzMovement = Input.acceleration.x - xatstart;
                     vtMovement = -Input.acceleration.z + zatstart;
                 } else {
                     hzMovement = CrossPlatformInputManager.GetAxis ("Horizontal");
                     vtMovement = CrossPlatformInputManager.GetAxis ("Vertical");
                 }
             Vector3 v = new Vector3 (hzMovement, 0, vtMovement);
             rb.AddForce (v * speed);
         }

     void calib(){
             xatstart = Input.acceleration.x;
             zatstart = Input.acceleration.z;
         }

The code will be pretty much same in both javascript and c#.Hope this helps.

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