Cube Rotating & Moving

Hi,

I have a simple cube that I can move left, right, up and down with the keyboard. I then wanted the cube to turn 90 degrees to flip it over in the director it is going, unfortunately it's not working as expected, and I am guessing it's me not understanding local and world coordinates.

I have a video of it so it's more clear...

http://www.youtube.com/watch?v=KPTAZgOUKCc

I read through a few articles and the Unity reference, but I can't seem to get this working as I want.

The code I use for moving and rotating are just simple methods like so...

Moving right:

 function move_right(){
 
     animating_cube = true;
 
     var start = transform.position.x;
 
     var y = transform.position.y;
 
     var z = transform.position.z;
 
     var cur : float = 0.0;
 
     
 
     while(cur < 1.0){
 
         cur += 0.06;
 
         transform.position = Vector3(start - cur, y, z);
 
         yield;
 
     }
 
     animating_cube = false;
 
 }

Rotating right:

 function rotate_right(){

   var curRot : float = 0;

   var startRot : float = transform.eulerAngles.z;

   

   while (curRot < 90) {

      curRot += 300 * Time.deltaTime;

      transform.eulerAngles.z = startRot + curRot;

      yield;

   }

   

   transform.eulerAngles.z = Mathf.Round(startRot + 90);

}

Any advice would be appreciated.

Thanks