private void PickQuestions()
{
CurrentQuestionGroup.Clear();
while (CurrentQuestionGroup.Count < EachTimeQuestionsCount)
{
Random random = new Random();
QuestionModel temp = AllQustions[random.Next(0, AllQustions.Count)];
if (!CurrentQuestionGroup.Contains(temp))
{
CurrentQuestionGroup.Add(temp);
}
}
}
/// <summary>
/// Submits the current answer.
/// </summary>
private void SubmitAnswer()
{
if (string.IsNullOrEmpty(CurrentAnswer) ||
CurrentQuestion == null)
{
// Do not evaluate an empty answer.
return;
}
// Convert the answer to kana if necessary.
if (CurrentQuestion.Question == SrsQuestionEnum.Reading)
{
CurrentAnswer = KanaHelper.RomajiToKana(CurrentAnswer);
}
// Determine if the answer is correct.
bool success = IsAnswerCorrect();
// Set the review state accordingly.
// Other operations will be executed when we move on to another question.
ReviewState = success ? SrsReviewStateEnum.Success : SrsReviewStateEnum.Failure;
// Play audio if auto play enabled.
if (CurrentQuestion.Question == SrsQuestionEnum.Reading &&
CurrentQuestionGroup.IsVocab &&
((success && Properties.Settings.Default.AudioAutoplayMode.ShouldPlayOnSuccess()) ||
(!success && Properties.Settings.Default.AudioAutoplayMode.ShouldPlayOnFailure())))
{
AudioBusiness.PlayVocabAudio(CurrentQuestionGroup.Audio);
}
// If we have a failure: trigger the timer.
if (ReviewState == SrsReviewStateEnum.Failure)
{
_canSubmit = false;
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = FailureSubmitDelay;
timer.Tick += OnFailureSubmitTimerTick;
timer.Start();
}
// If it was a success on the last question of the group, allow level up/down preview.
else if (CurrentQuestionGroup.GetUnansweredQuestions().Count() == 1)
{
SrsLevelStore.Instance.IssueWhenLoaded(
() => {
DispatcherHelper.Invoke(() => {
PreviewNextLevel = GetUpdatedLevel(CurrentQuestionGroup);
});
});
}
}
/// <summary>
/// Processes the success/failure logic for the last answered question.
/// Executed before getting to the next question.
/// </summary>
private void ProcessLastSubmission()
{
if (ReviewState == SrsReviewStateEnum.Success)
{
// Success. Set the question as answered.
CurrentQuestion.IsAnswered = true;
// If both questions of the group have been answered.
if (!CurrentQuestionGroup.GetUnansweredQuestions().Any())
{
SrsQuestionGroup group = CurrentQuestionGroup;
// Remove the group from the batch.
_currentBatch.Remove(group);
// Start the update group method after making sure the
// level store is finished loading.
SrsLevelStore.Instance.IssueWhenLoaded(
() => {
UpdateAnsweredGroup(group);
});
// Update the answered reviews count.
AnsweredReviewsCount++;
// Fill the batch to compensate for the removed group.
if (!IsWrappingUp)
{
FillCurrentBatch();
}
else if (_currentBatch.Count == 0)
{
StopSessionCommand.Execute(null);
}
}
}
else if (ReviewState == SrsReviewStateEnum.Failure)
{
// Wrong answer.
// Don't set the question as answered.
// Set the group as wrong.
CurrentQuestion.ParentGroup.IsWrong = true;
}
}