Issues with accelerometer calibration?

Question

I am trying to calibrate the accelerometer so that the player can hold the device at any orientation at the start of the game and that becomes the 0 point.

I use t$$anonymous$$s code:

   function Update () {
 
             Physics.IgnoreCollision(bomb.collider, collider);
 
 
 if(!hasInt){
     startDir.y = Input.acceleration.y;
     
     startDir.x = Input.acceleration.x;
     hasInt = true;
 Debug.Log(startDir);
 
 }
 
 
 
 //read in accelerometer
 dir.x = (-Input.acceleration.y) - startDir.y;
 dir.z = (Input.acceleration.x) - startDir.x;
 //end read
 
 
 //Normalize to unit sphere
 if (dir.sqrMagnitude > 1)
         dir.Normalize();
 //End normalize        
 
 
 
 if (startDir.sqrMagnitude > 1)
        startDir.Normalize();
     }

However, it doesnt change anyt$$anonymous$$ng w$$anonymous$$ch is odd to me. Anyone have any ideas?

Answer 1

I use very similar code and it works. Only difference in mine is that I normalize the startDir inside the if(!hasInt) block.

But I don't t$$anonymous$$nk that's your problem. So I suspect maybe you aren't actually getting the inputs from a device or somet$$anonymous$$ng. If you are testing using Unity Remote or somet$$anonymous$$ng then you might need some code to detect that. Here is what I do (set simulate to true when testing using Unity Remote):

     if(simulate || Application.platform==RuntimePlatform.IPhonePlayer ){
     
     
     //basic calibration:
     if(!hasInt){
         startDir.x = -Input.acceleration.y;
         startDir.y = -Input.acceleration.x;
         if (startDir.sqrMagnitude > 1) {
             startDir.Normalize();
         }
            hasInt = true;
         Debug.Log(startDir);
     }
     
     // remap device acceleration axis to game coordinates
     dir.x = -Input.acceleration.y-startDir.x;
     dir.z = -Input.acceleration.x-startDir.y;
     
     // clamp acceleration vector to unit sphere
     if (dir.sqrMagnitude > 1) {
         dir.Normalize();
     }
 } else {
     dir.z=Input.GetAxis("Vertical");
     dir.x=Input.GetAxis("Horizontal");
 }

Issues with accelerometer calibration?

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