// Actual worker for GetPreferredInstance()
internal GameInstance _GetPreferredInstance()
{
foreach (IGame game in knownGames)
{
// TODO: Check which ones match, prompt user if >1
// First check if we're part of a portable install
// Note that this *does not* register in the config.
string path = GameInstance.PortableDir(game);
if (path != null)
{
GameInstance portableInst = new GameInstance(game, path, "portable", User);
if (portableInst.Valid)
{
return(portableInst);
}
}
}
// If we only know of a single instance, return that.
if (instances.Count == 1 && instances.First().Value.Valid)
{
return(instances.First().Value);
}
// Return the autostart, if we can find it.
// We check both null and "" as we can't write NULL to the config, so we write an empty string instead
// This is necessary so we can indicate that the user wants to reset the current AutoStartInstance without clearing the config!
if (!string.IsNullOrEmpty(AutoStartInstance) &&
instances[AutoStartInstance].Valid)
{
return(instances[AutoStartInstance]);
}
// If we know of no instances, try to find one.
// Otherwise, we know of too many instances!
// We don't know which one to pick, so we return null.
return(!instances.Any() ? FindAndRegisterDefaultInstance() : null);
}