/// <summary>
/// Load settings from a file
/// </summary>
/// <param name="settings">The filename to load from, a default will be used otherwise</param>
/// <return>Settings</return>
public Settings Load(String filename = null)
{
if (filename == null)
filename = DefaultFilename;
if (File.Exists(filename))
{
Settings settings;
Stream stream = File.OpenRead(filename);
XmlSerializer serializer = new XmlSerializer(typeof(Settings));
try
{
settings = (Settings)serializer.Deserialize(stream);
}
catch
{
// Probably bad data in file, so provide the defaults.
settings = new Settings();
}
stream.Close();
// Validate settings if needed
validateSettings(settings);
settings.Save();
return settings;
}
// If we're here, no settings file exists, so save one and return defaults.
this.Save(DefaultFilename);
return this;
}
/// <summary>
/// A place to run any checks and restrict any values before saving the settings object.
/// </summary>
/// <param name="settings">The settings object</param>
private void validateSettings(Settings settings)
{
settings.Scale = MathHelper.Clamp(settings.Scale, 0, 100);
}