private AkinatorAnswer SupposeInternal(CharacterEntry character)
{
_characterToSuppose = character;
return(new AkinatorAnswer
{
AkinatorAnswerType = AkinatorAnswerType.Answer,
Message = "Предпологаю, что это " + character.Name,
CharacterToSuppose = character
});
}
public void AddCharacter(CharacterEntry character)
{
_charactersWithProbability.Add(new CharacterWithProbability
{
Character = character,
Probability = 0.5
});
RecalculateEnd(character);
}
private int GetBestQuestion(CharacterEntry bestCharacter)
{
var questions = bestCharacter.Questions
.Where(x => _history.All(y => y.QuestionId != x.Id))
.ToArray();
var maxP = questions.Max(x => x.Probability);
var ids = questions.Where(x => x.Probability >= maxP)
.Select(x => x.Id).ToArray();
if (ids.Length == 1)
{
return(ids[0]);
}
return(ids[_random.Next(ids.Length - 1)]);
}
private void RecalculateEnd(CharacterEntry character)
{
if (character == null)
{
return;
}
foreach (var question in _history)
{
var characterQuestion = character.Questions.First(x => x.Id == question.QuestionId);
var yes = question.UserAnswer == UserAnswer.Yes;
characterQuestion.Probability =
(characterQuestion.Count * characterQuestion.Probability + (yes ? 1 : 0))
/ (characterQuestion.Count + 1);
if (yes)
{
characterQuestion.Count++;
}
}
character.Count++;
}