Character rotation problem!

private var moveDirection = Vector3.zero; private var grounded = false;

class ControllerMovement {

var speed = 6.0; var jumpSpeed = 8.0; var rotationSmoothing = 10.0;

@System.NonSerialized var direction = Vector3.zero;

// Are we jumping? (Initiated with jump button and not grounded yet) @System.NonSerialized var jumping = false;

// This keeps track of our current velocity while we're not grounded? @System.NonSerialized var inAirVelocity = Vector3.zero;

}

var movement : ControllerMovement;

private var controller : CharacterController;

function FixedUpdate () {

transform.position.z = 0;

}

function Update() { if (!grounded) { moveDirection.x = Input.GetAxis("Horizontal") movement.speed;
} // If grounded, zero out y component and allow jumping else { moveDirection = Vector3(Input.GetAxis("Horizontal") movement.speed, 0.0, 0.0);

if (Input.GetButton ("Vertical")) { moveDirection.y = movement.jumpSpeed; } } moveDirection = transform.TransformDirection(moveDirection);

// Apply gravity moveDirection.y -= gravity * Time.deltaTime;

// Move the controller grounded = (GetComponent(CharacterController).Move(moveDirection * Time.deltaTime) & CollisionFlags.CollidedBelow) != 0;

// Set rotation to the move direction
if (movement.direction.sqrMagnitude > 0.01) transform.rotation = Quaternion.Slerp (transform.rotation, Quaternion.LookRotation (movement.direction), Time.deltaTime * movement.rotationSmoothing);

// We are in jump mode but just became grounded if (controller.isGrounded) { movement.inAirVelocity = Vector3.zero; if (movement.jumping) { movement.jumping = false; SendMessage ("DidLand", SendMessageOptions.DontRequireReceiver);

     var jumpMoveDirection = movement.direction * movement.speed + movement.inAirVelocity;
     if (jumpMoveDirection.sqrMagnitude > 0.01)
         movement.direction = jumpMoveDirection.normalized;
 }

}

}