private void makePrefab(){
		prefab = new Prefab(x1, y1, x2, y2);
		boolean found = true;
		int filenumber = 0;
		String pathTag = "HousePrefab";
		String path = "";
		
		do {
			path = "data/" + pathTag + String.valueOf(filenumber) + ".pfb";
			File f = new File(path);
			if (!f.isFile()){
				found = false;
			} else {
				filenumber++;
			}
		} while (found);
		
		
		
		try {
			prefab.save(path);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}