public async Task Start(Guid sessionId)
{
var playerIds = (await _sessionPlayerService.GetPlayersInSession(sessionId)).OrderBy(x => x).ToList();
var questions = (await _questionService.GetQuestionsInSession(sessionId)).OrderBy(x => x.CreatedBy).ToList();
var answers = (await _answerService.GetAnswersInSession(sessionId)).OrderBy(x => x.CreatedBy).ToList();
var options = await _whatIfOptionService.Get(sessionId);
var turns = new List <Turn>();
var assignedQuestions = new List <Guid>();
for (var n = 0; n < playerIds.Count; n++)
{
var playerId = playerIds[n];
var nextPlayer = playerIds[(n % playerIds.Count + 1 % playerIds.Count) == playerIds.Count ? 0 : (n % playerIds.Count + 1 % playerIds.Count)];
var questionsByNextPlayer = questions.Where(x => x.CreatedBy == nextPlayer).ToList();
var answersByNextPlayer = answers.Where(x => x.CreatedBy == nextPlayer).ToList();
for (var i = 0; i < options.NumberOfCards; i++)
{
var question = questionsByNextPlayer[i];
var answer = answersByNextPlayer[i];
var turn = new Turn
{
Id = Guid.NewGuid(),
QuestionId = question.Id,
PlayerQuestionId = playerId,
AnswerId = answer.Id,
PlayerAnswerId = playerIds.Count == 2 ? nextPlayer : playerIds.Where(x => turns.Count(y => y.PlayerAnswerId == x) < options.NumberOfCards).FirstOrDefault(x => x != playerId && x != nextPlayer)
};
assignedQuestions.Add(question.Id);
turns.Add(turn);
}
}
var rng = new Random(DateTime.Now.Millisecond);
void Shuffle <T>(IList <T> list)
{
var n = list.Count;
while (n > 1)
{
n--;
var k = rng.Next(n + 1);
var value = list[k];
list[k] = list[n];
list[n] = value;
}
}
Shuffle(turns);
var game = new Game {
Turns = turns
};
_games.TryAdd(sessionId, game);
}
public async Task <IEnumerable <Question> > GenerateQuestionsForSession(Guid sessionId)
{
var options = await _whatIfOptionService.Get(sessionId);
var playerIds = (await _sessionPlayerService.GetPlayersInSession(sessionId)).ToList();
var questions = new List <Question>();
for (int i = 1; i <= options.NumberOfCards; i++)
{
var questionsThisRound = new List <Question>();
foreach (var playerId in playerIds)
{
var playersAssignedQuestions = questions.GroupBy(x => x.AssignedToPlayer);
var playersAssignedQuestionThisRound = questionsThisRound.Select(x => x.AssignedToPlayer);
var validPlayersToAssignTo = playerIds.Where(x => x != playerId && playersAssignedQuestionThisRound?.Contains(x) != true);
var assignToPlayer = validPlayersToAssignTo.FirstOrDefault();
if (assignToPlayer == Guid.Empty)
{
if (playerIds.Count == 2)
{
assignToPlayer = playerIds.FirstOrDefault(x => x != playerId);
}
else
{
var questionToSwap = questionsThisRound.FirstOrDefault();
assignToPlayer = questionToSwap.AssignedToPlayer;
questionToSwap.AssignedToPlayer = playerId;
}
}
var question = new Question
{
Id = Guid.NewGuid(),
CreatedBy = playerId,
SessionId = sessionId,
AssignedToPlayer = assignToPlayer
};
questions.Add(question);
questionsThisRound.Add(question);
}
}
_questions.TryAdd(sessionId, questions);
return(questions);
}