public boolean peekMap(String fname){
		int max_length = 0;
		ArrayList <String> lines = new ArrayList <String> ();
		try {
			InputStream in = this.getClass().getClassLoader().getResourceAsStream(fname);
			if (in == null) {
				System.out.println("no hay nivel " + fname);
				return false;
			}
			BufferedReader reader = new BufferedReader(new InputStreamReader(in));
			
			String line;
			while ((line = reader.readLine()) != null) {
				if (!line.startsWith("#")) {
					lines.add(line);
					if (line.length() > max_length) {
						max_length = line.length();
					}
				}
			}
			reader.close();
		}
		catch (IOException ex) {
			System.out.println("Error al leer el archivo del mapa: " + fname);
			
		}
		return true;
	}