public void LoadProject()
{
string mapDirectory = WorkingDirectory + "/Maps";
Maps.Clear();
if (!Directory.Exists(mapDirectory))
{
throw new ArgumentException("Working directory does not have a maps sub-directory.");
}
string[] mapFiles = Directory.GetFiles(mapDirectory);
foreach (string mapFileName in mapFiles)
{
Maps.Add(MapProvider.LoadFromFile(mapFileName));
}
}