public IReadOnlyCollection <MtcQuestion> BuildQuestions()
{
var result = new List <MtcQuestion>(Settings.NumOfQuestions);
var rnd = new Random();
for (int i = 0; i < Settings.NumOfQuestions; ++i)
{
switch (Settings.Operation)
{
case MtcOperation.Multiplication:
var question = new MtcQuestion(
Settings.RangeFrom,
(byte)rnd.Next(Settings.IncludeMultByOne ? 1 : Settings.RangeFrom, Settings.RangeTo + 1),
Settings.Operation,
(byte)(i + 1));
result.Add(question);
break;
case MtcOperation.Addition:
case MtcOperation.Division:
case MtcOperation.Subtraction:
throw new NotImplementedException();
default:
throw new InvalidEnumArgumentException(
nameof(Settings.Operation), (int)Settings.Operation, Settings.Operation.GetType());
}
}
return(result.AsReadOnly());
}
public MtcStatsItem(MtcQuestion question, byte?proposedAnswer, bool?isInTime)
{
question.Should().NotBeNull();
Question = question;
ProposedAnswer = proposedAnswer;
CorrectAnswer = ClalculateCorrectAnswer();
IsInTime = isInTime;
}