Calibrating the accelerometer input

Hi! I am still very new to game developing and even less experienced with developing to android so I would appreciate if someone could help me with this. So I've been searching for ways to calibrate the accelerometer when launching the game and I finally found a way that I tought worked but further testing showed that it didn't. The problem along the calibration issue is that the player moves on the Y axis although it shouldn't. Or like it hovers for a little time and then returns to the ground and this happens over and over again when moving the player forward by tilting. As I said I'm still very new to android developing and I really don't understand what I 've copypasted trying to get the calibration right, so this is why I would appreciate it if someone who understands the code better than me took a look.

Code (CSharp):

1. public class PlayerMovement : MonoBehaviour
2. {
3.  
4.     public float moveSpeed;
5.     public float maxSpeed = 20;
6.     float phoneSpeed = 10;
7.     float currentSpeed;
8.     public Score point;
9.  
10.     Matrix4x4 calibrationMatrix;
11.  
12.     private Rigidbody player;
13.  
14.     // Use this for initialization
15.     public void Start()
16.     {
17.         point = GetComponent<Score>();
18.         player = GetComponent<Rigidbody>();
19.  
20. #if UNITY_ANDROID
21.  
22.         calibrateAccelerometer();
23. #endif
24.  
25.     }
26.  
27.     // Update is called once per frame
28.     void FixedUpdate()
29.     {
30. #if UNITY_STANDALONE || UNITY_WEBPLAYER
31.         float moveHorizontal = Input.GetAxis("Horizontal");
32.         float moveVertical = Input.GetAxis("Vertical");
33.  
34.         Vector3 move = new Vector3(moveHorizontal, 0.0f, moveVertical);
35.  
36.         if (player.velocity.magnitude < maxSpeed)
37.         {
38.             player.AddForce(move * moveSpeed);
39.         }
40.  
41.  
42. #elif UNITY_ANDROID
43.  
44.         Vector3 movement = getAccelerometer(Input.acceleration);
45.  
46.         movement.x = Input.acceleration.x;
47.         movement.z = -Input.acceleration.z;
48.  
49.         if(movement.sqrMagnitude > 1)
50.         {
51.             movement.Normalize();
52.         }
53.  
54.         movement *= Time.deltaTime;
55.  
56.         transform.Translate(movement * phoneSpeed);
57. #endif
58.  
59.     }
60.  
61.     void OnTriggerEnter(Collider collider)
62.     {
63.         if (collider.gameObject.tag == "Coin")
64.         {
65.             Destroy(collider.gameObject);
66.             point.AddScore();
67.         }
68.  
69.         if (collider.gameObject.tag == "Goal")
70.         {
71.             GameManager.timeLeft = GameManager.timeLeft + 20;
72.             LevelManager.NextLevel();
73.         }
74.     }
75.  
76.  
77.     void calibrateAccelerometer()
78.     {
79.         Vector3 wantedDeadZone = Input.acceleration;
80.  
81.         Quaternion rotateQuaternion = Quaternion.FromToRotation(new Vector3(0f, 0f, -1f), wantedDeadZone);
82.         //create identity matrix ... rotate our matrix to match up with down vec
83.         Matrix4x4 matrix = Matrix4x4.TRS(Vector3.zero, rotateQuaternion, new Vector3(1f, 1f, 1f));
84.         //get the inverse of the matrix
85.         this.calibrationMatrix = matrix.inverse;
86.     }
87.  
88.     Vector3 getAccelerometer(Vector3 accelerator)
89.     {
90.         Vector3 accel = this.calibrationMatrix.MultiplyVector(accelerator);
91.         return accel;
92.     }
93. }

Thanks!

 

Hey I think you solved the problem by now lool but just in case someone else reads this post and wonders what the problem is I think i've spotted the error:

In line 56, when you apply the transform to translate, you pass in the "movement" vector which contains the information about all 3 axis. In this case you just want to move along the X and Z axis so you have to pass in each single value in the new vector3 like this:
transform.Translate(new Vector3(movement.x, 0f, movement.z) * phoneSpeed);
I haven't tried it but it should work