private static QuizItem GetRandomQuizItem(QuizRound round, out int index)
{
index = -1;
if (_totalQuestions <= round.Answers.Count())
{
return(null);
}
var props = _root.Quiz.GetType().GetProperties();
var val = _random.Next(0, _totalQuestions);
var temp = round.Answers.SingleOrDefault(x => x.QuestionIndex == val);
if (temp == null)
{
round.Answers.Add(new Answer {
QuestionIndex = val
});
}
else
{
while (round.Answers.FirstOrDefault(x => x.QuestionIndex == val) != null)
{
val = _random.Next(0, _totalQuestions);
}
round.Answers.Add(new Answer {
QuestionIndex = val
});
}
var propInfo = props[val];
var item = propInfo.GetValue(_root.Quiz, null) as QuizItem;
if (item != null)
{
_questionTotal = item.Options.Count();
}
index = val;
return(item);
}
private static void RunQuiz()
{
_totalQuestions = _root.Quiz.GetType().GetProperties().Count();
Console.WriteLine(" ** Please enter a numeric value for each question.\n**" +
"Enter quit or exit to stop the quiz at any time.\n\n");
var round = new QuizRound {
Index = _round, Answers = new List <Answer>()
};
while (true)
{
int index;
var item = GetRandomQuizItem(round, out index);
if (item == null)
{
break;
}
Console.WriteLine($"\n{item.Question}");
for (var i = 1; i <= item.Options.Count; i++)
{
Console.WriteLine($"{i}. {item.Options[i - 1]}");
}
_input = Console.ReadLine();
if (Exiting(_input))
{
break;
}
int value;
while ((!int.TryParse(_input, out value) || value < 1 || value > item.Options.Count) && !Exiting(_input))
{
Console.WriteLine($"Enter numeric value (1-{item.Options.Count})");
_input = Console.ReadLine();
if (Exiting(_input))
{
break;
}
}
if (Exiting(_input))
{
break;
}
var answer = round.Answers.SingleOrDefault(x => x.QuestionIndex == index);
if (answer != null)
{
answer.Actual = item.Answer;
answer.Chosen = value;
}
}
var correct = round.Answers.Count(answer => answer.Actual == answer.Chosen);
var credit = 100 / _totalQuestions;
round.Score = credit * correct;
Console.WriteLine($"\nCurrent score: {round.Score}\n");
var prevScores = GetPreviousScores();
if (prevScores.Any())
{
Console.WriteLine($"Previous scores: {string.Join(", ", prevScores)}");
}
Rounds.Add(round);
}
