function Update () {
     var controller : CharacterController = GetComponent(CharacterController);
     var horizontalVelocity : Vector3 = controller.velocity;
     horizontalVelocity = Vector3(controller.velocity.x, 0, controller.velocity.z);
      
     // The speed on the x-z plane ignoring any speed  
     var horizontalSpeed : float = horizontalVelocity.magnitude;
     // The speed from gravity or jumping
     var verticalSpeed : float = controller.velocity.y;
     // The overall speed
     var overallSpeed : float = controller.velocity.magnitude;
}