public void removeSpace(int id) {
		if (id < 0 || id >= vortexSpaces.length) {
			return;
		}
		
		//TODO remove also neighbors and paths
		ArrayList<Integer> paths = vortexSpaces[id].getPaths();
		ArrayList<Integer> neighbors = vortexSpaces[id].getNeighbors();
		
		vortexSpaces[id/2] = null;
	}