private Planet generateNewPlanet() {
		if(++planetNameIndex >= PLANET_NAMES.length) planetNameIndex = 0;
		String name = PLANET_NAMES[planetNameIndex];
		int bottom = 5000;
		if(Math.random() <= 0.5) bottom = 3000;
		else if(Math.random() <= 0.5) bottom = 7000;
		return new Planet(model, name, false, Planet.getStandardWidth(), bottom);
	}