public bool BeginQuiz()
{
if (quizState != QUIZ_STATE.INIT)
{
return(false);
}
quizState = QUIZ_STATE.ANSWERED;
return(true);
}
public Quiz(SymptomsHolder symptomsHolder)
{
quizState = QUIZ_STATE.INIT;
questions = new List <Question>();
answers = new List <Answer>();
askedQuestions = new HashSet <int>();
currentQuestionNumber = 0;
this.symptomsHolder = symptomsHolder;
}
public bool ProcessAnswer(Answer answer)
{
if (quizState != QUIZ_STATE.ANSWERING || answer.GetAnswerType() != currentQuestionType)
{
return(false);
}
symptomsHolder.ProcessAnswer(answer);
answers.Add(answer);
currentQuestionNumber++;
quizState = QUIZ_STATE.ANSWERED;
return(true);
}
public Question GetNextQuestion()
{
if (quizState != QUIZ_STATE.ANSWERED)
{
return(null);
}
if (askedQuestions.Count >= maxQuestionCount || symptomsHolder.GetSignaturesCount() <= finalSignatureCount)
{
quizState = QUIZ_STATE.FINISHED;
return(null);
}
quizState = QUIZ_STATE.ANSWERING;
Question nextQuestion = symptomsHolder.GetNextQuestion();
currentQuestionType = nextQuestion.GetQuestionType();
currentSymptomType = nextQuestion.GetCorrespondingSymptom();
return(nextQuestion);
}
