@Override
    public void run() {
        for (Planet p : currentPlanets) {
            if (p.getTag().equals("[=H=]")) {
                restored.add(p);
            }
        }

        for (Planet p : oldPlanets) {
            if (p.getTag().equals("[=H=]")) {
                restored.remove(p);
            }
        }
    }