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    Node playerNode;
    Node player;
    Quaternion derp = new Quaternion();
    Quaternion rodarX = new Quaternion();
    Quaternion rodarY = new Quaternion();
    Quaternion rodarZ = new Quaternion();

  @Override
  public void simpleInitApp() {
    setupKeys();
    cam.setLocation(new Vector3f(0, 10, 0));
    cam.lookAt(new Vector3f(0, -1, 0), Vector3f.UNIT_Y);

    flyCam.setEnabled(false);

    playerNode = new Node();
    player = new Node();
    rootNode.attachChild(playerNode);
    playerNode.attachChild(player);

    (...)

  }

    @Override
  public void simpleUpdate(float tpf) {
        Vector3f vec = cam.getDirection();
        //System.out.println(vec.getX());
        //System.out.println(vec.getY());
        //System.out.println(vec.getZ());
        System.out.println(derp.getX());
        System.out.println(derp.getY());
        System.out.println(derp.getZ());
  }

    private void setupKeys() {
        inputManager.addMapping("Left", new KeyTrigger(KeyInput.KEY_A));
        inputManager.addMapping("Right", new KeyTrigger(KeyInput.KEY_D));
        inputManager.addMapping("Up", new KeyTrigger(KeyInput.KEY_W));
        inputManager.addMapping("Down", new KeyTrigger(KeyInput.KEY_S));

        inputManager.addListener(analogListener, new String[]{ "Left", "Right", "Up", "Down" });
    }

    private AnalogListener analogListener = new AnalogListener() {
        public void onAnalog(String name, float value, float tpf) {
                if (name.equals("Right")) {
                    Vector3f pos = cam.getLocation();
                    cam.setLocation(new Vector3f(pos.x+tpf*3, pos.y, pos.z));
                }
                if (name.equals("Left")) {
                    Vector3f pos = cam.getLocation();
                    cam.setLocation(new Vector3f(pos.x-tpf*3, pos.y, pos.z));
                }
                if (name.equals("Up")) {
                    Vector3f pos = cam.getLocation();
                    cam.setLocation(new Vector3f(pos.x, pos.y, pos.z-tpf*3));
                }
                if (name.equals("Down")) {
                    Vector3f pos = cam.getLocation();
                    cam.setLocation(new Vector3f(pos.x, pos.y, pos.z+tpf*3));
                }
        }
    };
}