/**
* Loads a map from a file.
*
* @param file A FileReader object that contains the map data.
*/
void loadMapFile(FileReader file) {
String buf, data = "";
try {
BufferedReader br = new BufferedReader(file);
while ((buf = br.readLine()) != null) {
data += buf;
}
br.close();
file.close();
} catch (IOException e) {
System.out.println("Can't open file");
System.exit(0);
}
loadMap(data);
}