GUIUtil.createSpriteGUI(Name.INVENTORY + "-background", -400, 200, 1, 0, 5000, Name.INVENTORY,
                new CGUIFunction() {
                    @Override
                    public void onEnter(Entity host, int x, int y) {
                        System.out.println("Enter");
                    }

                    @Override
                    public void onLeave(Entity host, int x, int y) {
                        System.out.println("Leave");
                    }

                    @Override
                    public void onPressed(Entity host, int x, int y) {
                        System.out.println("Pressed");
                    }

                    @Override
                    public void onReleased(Entity host, int x, int y) {
                        System.out.println("Released");
                    }
        });