Look at the attach image and the script,i want to player to move and stop only at the center of next grid cell. please let me know if anyone know it.

   [1]: /storage/temp/23377-gameview.jpg


  
 

pragma strict

   // Move object using accelerometer
 var speed = 10;
  
  
  
 function Start () {
 Screen.sleepTimeout = SleepTimeout.NeverSleep;
  
  
 }
  
  
  
  
 function Update () {
  
  
  
 var dir : Vector3 = Vector3.zero;
  
  
  
 dir.x =/*Input.acceleration.x*5;*/ Input.GetAxis("Horizontal");//Input.acceleration.x*5;//Input.GetAxis("Horizontal");//-Input.acceleration.y;
  
 dir.z =/*Input.acceleration.y*2;*/Input.GetAxis("Vertical");//Input.acceleration.y*5;//Input.GetAxis("Vertical"); //Input.acceleration.x;
  
 // clamp acceleration vector to unit sphere
 if (dir.sqrMagnitude > 1)
 dir.Normalize();
  
 // Make it move 10 meters per second instead of 10 meters per frame...
 dir *= Time.deltaTime;
  
 // stop to cross movement
  
 if(Mathf.Abs(dir.x) > Mathf.Abs(dir.z)) {
 dir.z = 0;
 }
 else {
 dir.x = 0;
 }
  
 // Move object
 transform.Translate (dir * speed);
 }