public GameViewModel(int totalQuestions, IImageProvider imageProvider, IStorageProvider storageProvider)
{
_imageProvider = imageProvider;
_storageProvider = storageProvider;
// register all the events
CommandEvents.ContinueButtonPressed += new EventHandler(ContinueButtonPressed);
CommandEvents.AnswerButtonPressed += new EventHandler(AnswerButtonPressed);
CommandEvents.HighScoreContinueButtonPressed += new EventHandler(HighScoreContinueButtonPressed);
DisplayHighScore += new EventHandler(DisplayScore);
// check to see whether any game state is already loaded
if (_storageProvider.GameStateExists())
{
_game = _storageProvider.LoadGameState();
// check if the player was in the middle of a question
if (_game.CurrentQuestion.Answered)
{
DisplayQuestion();
ContinueButtonPressed(this, new EventArgs());
}
else
{
DisplayQuestion();
}
}
else
{
_game = new Game(totalQuestions);
ContinueButtonPressed(this, new EventArgs());
}
}
public void DeleteGameState()
{
dummyGameState = null;
}
public void SaveGameState(Game currentGame)
{
dummyGameState = currentGame;
}
public void SaveGameState(Game currentGame)
{
// first reset any existing data
DeleteGameState();
// open the file
IsolatedStorageFileStream isfStream = isf.OpenFile(gameStateFileName, System.IO.FileMode.CreateNew);
// serialize the HighScoreTable
XmlSerializer serializer = new XmlSerializer(typeof(Game));
serializer.Serialize(isfStream, currentGame);
isfStream.Close();
}