public File findCard(Card c) {
		String name = c.getFileName();
		
		String set = c.getSet();
		if(set == null) {
			set = map.get(name);
			if(set == null) return null;
		}
		
		File f = new File(new File(CubeMaker.cacheDir, set), name + ".jpg");
		if(f.exists()) {
			return f;
		} else {
			return null;
		}
	}