public void OnCorrect(Answer answer)
{
int indexOfWord = AppState.Translations.FindIndex(f => f.From == answer.Translation);
if (answer.IsCorrect)
{
AppState.UpdateCorrectGuess(indexOfWord);
}
else
{
AppState.UpdateIncorrectGuesses();
}
//Next word has to be not guessed and not on screen
//var notGuessed = AppState.Words.Where(w => !w.IsGuessed && Data.FindIndex(f => f.Translation == w.Spanish) == -1).ToList();
var notGuessed = AppState.Translations.Where(w => !w.IsGuessed).ToList();
var notOnScreen = notGuessed.Where(w => MultipleChoiceSets.FindIndex(fi => fi.Translation == w.From) == -1).ToList();
if (notOnScreen.Count == 0 && !answer.IsCorrect)
{
notOnScreen.Add(AppState.Translations[indexOfWord]);
}
int nextIndex = random.Next(notOnScreen.Count);
TranslationItem nextWord = new TranslationItem();
if (notOnScreen.Count > 0)
{
nextWord = notOnScreen[nextIndex];
MultipleChoiceSets[answer.ReplacementIndex] = AppState.CreateCardMultipleChoices(nextWord, 2);
}
else
{
MultipleChoiceSets[answer.ReplacementIndex] = new TranslationMultipleChoices {
Answer = "----", Choices = null, Translation = "----"
};
}
}