private ReviewCollectionAsyncBase GetNextCardSource()
{
int newReviewCount = ReviewCollectionNew.ReviewCount();
int learnReviewCount = ReviewCollectionLearn.ReviewCount();
int dueReviewCount = ReviewCollectionDue.ReviewCount();
int totalReviewCount = newReviewCount + learnReviewCount + dueReviewCount;
int rnd = _random.Next(0, totalReviewCount);
if (rnd < newReviewCount)
{
return(ReviewCollectionNew);
}
if (rnd < newReviewCount + learnReviewCount)
{
return(ReviewCollectionLearn);
}
if (rnd < newReviewCount + learnReviewCount + dueReviewCount)
{
return(ReviewCollectionDue);
}
return(null);
}
/// <summary>State-dependent counts of cards to be reviewed.</summary>
/// <param name="state">The state.</param>
/// <returns>State-dependent card count.</returns>
public int CountByState(CardPracticeStateFilterFlag state)
{
int ret = 0;
if ((state & CardPracticeStateFilterFlag.Due) == CardPracticeStateFilterFlag.Due)
{
ret += ReviewCollectionDue.ReviewCount();
}
if ((state & CardPracticeStateFilterFlag.Learning) == CardPracticeStateFilterFlag.Learning)
{
ret += ReviewCollectionLearn.ReviewCount();
}
if ((state & CardPracticeStateFilterFlag.New) == CardPracticeStateFilterFlag.New)
{
ret += ReviewCollectionNew.ReviewCount();
}
return(ret);
}