/// <summary>
/// Get a question and answers, with a list of possible incorrect answers.
/// </summary>
/// <param name="question"></param>
/// <param name="correctAnswer"></param>
/// <param name="wrongAnswers"></param>
public void GetQuestion(out FlashCard questionCard, out Translation correctTranslation, out List <FlashCard> wrongQuestionCards, out List <Translation> wrongTranslations)
{
//grab a random flash card to be the question
questionRand.MaxNum = Cards.Count - 1;
var cardIndex = questionRand.Next();
questionCard = Cards[cardIndex];
//Get the correct answer
var correctIndex = translationRand.Next(questionCard.Translations.Count);
var correctAnswer = questionCard.Translations[correctIndex];
correctTranslation = correctAnswer;
//add all the possible incorrect answers
wrongQuestionCards = new List <FlashCard>();
wrongTranslations = new List <Translation>();
for (int i = 0; i < Cards.Count; i++)
{
if (cardIndex != i)
{
//Get the translation from this card that matches the correct answer
var wrongCard = Cards[i];
var wrongAnswer = wrongCard.Translations.FirstOrDefault(x => x.Language == correctAnswer.Language);
if (null != wrongAnswer)
{
wrongQuestionCards.Add(wrongCard);
wrongTranslations.Add(wrongAnswer);
}
}
}
}
/// <summary>
/// The user selected an answer.
/// Set the flags, menu entry colors, and start timer.
/// </summary>
private void AnswerSelected(bool correctAnswer, FlashCard selectedAnswer)
{
QuestionStateMachine.Done();
if (!AnswerChosen)
{
//set flags
AnswerChosen = true;
AnsweredCorrect = correctAnswer;
//Set all the colors of the answers to let the user know which was the correct answer
foreach (var entry in Entries)
{
entry.QuestionAnswered = true;
}
if (null != QuestionAnswered)
{
QuestionAnswered(this, new QuestionEventArgs(AnsweredCorrect, correctQuestion, selectedAnswer));
}
//start the timer to exit this screen
AutoQuit.Start(1f);
if (null != OverlayScreen)
{
OverlayScreen.ExitScreen();
}
}
}
protected virtual QuestionMenuEntry CreateQuestionMenuEntry(string text, FlashCard flashCard, bool correctAnswer, ContentManager content)
{
return(new QuestionMenuEntry(text, flashCard, correctAnswer, content)
{
TransitionObject = new WipeTransitionObject(TransitionWipeType.PopBottom),
});
}
private void ParseCardXmlNodes(XmlNode xmlNode)
{
//create a new flash card
var card = new FlashCard()
{
Language1 = this.Language1,
Language2 = this.Language2
};
//read it in
XmlFileBuddy.ReadChildNodes(xmlNode, card.ParseChildNode);
//store the card
Cards.Add(card);
}
protected virtual QuestionMenuEntry CreateQuestionMenuEntry(string text, FlashCard flashCard, bool correctAnswer, IFontBuddy font)
{
try
{
return(new QuestionMenuEntry(text, flashCard, correctAnswer, font)
{
TransitionObject = new WipeTransitionObject(TransitionWipeType.PopBottom),
});
}
catch (Exception ex)
{
ScreenManager.ErrorScreen(ex);
throw new Exception($"Error creating menu entry for {text}", ex);
}
}
private void Init(FlashCard flashCard, bool correctAnswer)
{
FlashCard = flashCard;
CorrectAnswer = correctAnswer;
Label.ShrinkToFit(Resolution.TitleSafeArea.Width);
QuestionLabel.IsCorrectAnswer = correctAnswer;
OnClick += QuestionLabel.OnAnswer;
Highlightable = false;
//Setting the resource name here will cause the correct sound effect to be loaded an played when this button is clicked
ClickedSound = correctAnswer ? "CorrectAnswer" : "WrongAnswer";
if (Rect.Width < QuestionLabel.Rect.Width)
{
Size = new Microsoft.Xna.Framework.Vector2(QuestionLabel.Rect.Width, Size.Y);
}
}
public QuestionMenuEntry(string text, FlashCard flashCard, bool correctAnswer, ContentManager content)
: base(text, content)
{
Init(flashCard, correctAnswer);
}
public QuestionMenuEntry(string text, FlashCard flashCard, bool correctAnswer, IFontBuddy font)
: base(text, font)
{
Init(flashCard, correctAnswer);
}
public void LoadSoundEffect(string language, ContentManager content)
{
SoundEffect = FlashCard.LoadSoundEffect(language, content);
}
public QuestionEventArgs(bool answeredCorrectly, FlashCard correctAnswer, FlashCard selectedAnswer)
{
AnsweredCorrectly = answeredCorrectly;
CorrectAnswer = correctAnswer;
SelectedAnswer = selectedAnswer;
}
