Snipped of using mouse arrow to target

//This is a snippet of my controller code - basically newh and newv replace the standard stick inputs
//  - so instead of trying to relative to the stick, it's pointing to the mouse arrow

 Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);
 Plane playerPlane = new Plane(Vector3.up, transform.position);
 float hitdist = 0f;
 if (playerPlane.Raycast (ray,out hitdist)) {
        Vector3 targetPoint = ray.GetPoint(hitdist);
    targetPoint=(targetPoint-transform.position).normalized;
    newh=targetPoint.x;
    newv=targetPoint.z;
 }