public void render(GL gl, GLU glu, GLAutoDrawable drawable) {
        if (init) {
            cam.show(glu, gl, drawable);
            for (int i=0; i <= objects.size()-1; i++) {
                objects.get(i).draw(gl);
            }
        }
        System.out.print("Pressed: ");
        for (int i=0; i <= keys.size()-1; i++) {
            System.out.print(keys.get(i)+"  ");
        }
        keyActions();
        System.out.println();
    }