/// <summary>
/// Attempts to load a rom set from a zip archive file
/// </summary>
/// <param name="filename">filename of the zip archive containing the rom set</param>
/// <param name="set">returns RomSet on success</param>
/// <param name="errMessage">error message returned on failure</param>
/// <returns>true if the rom set was sucessfully loaded, false if error</returns>
static public bool ReadRomSetFromZipArchive(string filename, out RomSet?set, out string?errMessage)
{
set = new RomSet(filename, out errMessage);
if (errMessage == null)
{
return(true);
}
set = null;
return(false);
}
protected override void LoadContent()
{
base.LoadContent();
// Create the screen manager component.
ScreenManager = new ScreenManager(this);
Components.Add(ScreenManager);
// read the ROMs
if (RomSet.ReadRomSetFromZipArchive("irobot.zip", out RomSet? roms, out string?errMsg) && roms != null)
{
// now create the hardware
mMachine = new Emulation.Machine(roms, new MathboxRenderer.Factory(ScreenManager));
}
LoadingScreen.Load(ScreenManager, true, null, new GameScreen(ScreenManager));
if (errMsg != null)
{
string message = $"ROMSET MISSING\n\n{errMsg}";
MessageBoxScreen dialog = new MessageBoxScreen(ScreenManager, message, false);
ScreenManager.AddScreen(dialog, null);
}
}