Freezing Rotation

Hey all,

I can't seem to get freezing rotation to work. I have a sphere with a rigidbody on it, and I have pressed the 'freeze rotation - z' checkbox on it.

I want the sphere to be able to rotate in y for changing direction (I rotate it around the global up axis) and rotate along its own x (around axis transform.right) to roll forward. I *don't* want it to rotate along z, because then the transform.right axis moves and rolling forward no longer works properly.

However, when I run my script, it seems like rotation along z is still happening without any change. Can anyone help me figure out why? Here is my control code:

Code (csharp):

1.  
2.     void FixedUpdate () {
3.        
4.         //SPHERE MOVEMENT
5.         float hor = Input.GetAxis("Horizontal");
6.         float ver = Input.GetAxis("Vertical");
7.        
8.         //turning
9.         if (Mathf.Abs(hor) > deadZone) {
10.             rigidbody.AddTorque (Vector3.up * hor);
11.         }
12.        
13.         //forward
14.         if (Mathf.Abs(ver) > deadZone) {
15.             //add torque around right-hand axis
16.             rigidbody.AddTorque(transform.right.normalized * ver);         
17.         }
18.  

 

Ah, I think I see the problem (although not the solution). I think freezing the x or z rotations freezes them in *world-space*, rather than local? Is that possible? The behavior seems to be that I can only roll forward (ie, rotate around the 'transform.right' axis) when I'm facing the appropriate direction, but not if I'm facing 90-degrees in another direction around the global up axis.

Can I get it to freeze only the *local* x, y, or z, instead of global?

 

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