/// <summary>
/// Starts the game
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void StartGame_Click(object sender, RoutedEventArgs e)
{
try
{
// Make the game inputs visible
btnStartGame.Visibility = Visibility.Hidden;
btnSubmit.Visibility = Visibility.Visible;
boxAnswer.Visibility = Visibility.Visible;
// Focus on the Answer box
Dispatcher.BeginInvoke(new Action(() => boxAnswer.Focus()));
// Create the game
ArithmeticianGame = new ArithmeticianGame(CurrentUser, GameType);
lblCurrentQuestion.Content = ArithmeticianGame.CurrentQuestion;
//Tell it which method will handle the click event
ArithmeticianGame.GameTimer.Tick += new EventHandler(GameTimer_Tick);
ArithmeticianGame.GameTimer.Start();
// Display the question
lblQuestion.Content = ArithmeticianGame.GenerateQuestion();
}
catch (Exception ex)
{
ShowErrorMessage(ex);
}
}
/// <summary>
/// Submits the Answer to the game
/// </summary>
private async Task SubmitAnswer()
{
// Check the answer
int.TryParse(boxAnswer.Text.ToString(), out int answer);
if (ArithmeticianGame.CheckAnswer(lblQuestion.Content.ToString(), answer))
{
lblPreviousCorrect.Content = "O";
ArithmeticianGame.GameScore.CorrectAnswerCount++;
lblPreviousCorrect.Foreground = Brushes.Green;
}
else
{
lblPreviousCorrect.Content = "X";
ArithmeticianGame.GameScore.IncorrectAnswerCount--;
lblPreviousCorrect.Foreground = Brushes.Red;
}
// Finish the game if it was the tenth question
if (ArithmeticianGame.CurrentQuestion >= 10)
{
FinishGame();
return;
}
ArithmeticianGame.CurrentQuestion++;
// Change the labels then clear and focus the answer box
lblCurrentQuestion.Content = ArithmeticianGame.CurrentQuestion;
lblQuestion.Content = ArithmeticianGame.GenerateQuestion();
boxAnswer.Text = null;
boxAnswer.Focus();
// Show the if the previous answer is correct or not for a second
await Task.Delay(1000);
var previousCorrect = lblPreviousCorrect.Content as string;
if (!string.IsNullOrWhiteSpace(previousCorrect))
{
lblPreviousCorrect.Content = null;
lblPreviousCorrect.Background = Brushes.Transparent;
}
}