public void StandardElo()
{
var standardElo = new StandardElo();
// Standard match
var result = standardElo.Calculate(1600, 1500, 1500);
Assert.That(result.WinnerDelta, Is.EqualTo(16));
Assert.That(result.LoserDelta, Is.EqualTo(-16));
// K32 vs K24
result = standardElo.Calculate(1600, 1500, 2300);
Assert.That(result.WinnerDelta, Is.EqualTo(32));
Assert.That(result.LoserDelta, Is.EqualTo(-24));
// K32 vs K16
result = standardElo.Calculate(1600, 1600, 2402);
Assert.That(result.WinnerDelta, Is.EqualTo(32));
Assert.That(result.LoserDelta, Is.EqualTo(-16));
// K24 vs K16
result = standardElo.Calculate(1600, 2100, 2400);
Assert.That(result.WinnerDelta, Is.EqualTo(20));
Assert.That(result.LoserDelta, Is.EqualTo(-14));
// K32 Tie
result = standardElo.Calculate(1600, 1600, 1800, true);
Assert.That(result.WinnerDelta, Is.EqualTo(8));
Assert.That(result.LoserDelta, Is.EqualTo(-8));
}
public Match GenerateMatch(int boardId, string winnerName, string loserName, bool tie = false)
{
var board = _repository.GetBoardByIdWithCompetitors(boardId);
if (board == null)
{
throw (new ServiceException("Can not find challenge board."));
}
if (DateTime.Now < board.Started)
{
throw (new ServiceException("This challenge board start on " + board.Started.ToShortDateString() + "."));
}
if (DateTime.Now >= board.End)
{
throw (new ServiceException("This challenge board has ended."));
}
var winner = board.Competitors.Active().FindCompetitorByName(winnerName);
var loser = board.Competitors.Active().FindCompetitorByName(loserName);
if (winner == null)
{
throw (new ServiceException("You are not part of this challenge board."));
}
if (loser == null)
{
throw (new ServiceException("Can not find opponent."));
}
if (loser.Name == winner.Name)
{
throw (new ServiceException("You can't play yourself."));
}
var match = new Match
{
Board = board,
Tied = tie,
Winner = winner,
Loser = loser,
Created = DateTime.Now,
VerificationDeadline = DateTime.Now.AddHours(board.AutoVerification)
};
var unresolvedMatches = _repository.GetUnresolvedMatchesByBoardId(boardId, false).ToList();
// Figure unverified ratings. Parses and sums unverified matches
var unverifiedWinnerRank = winner.CalculateUnverifiedRank(unresolvedMatches);
var unverifiedLoserRank = loser.CalculateUnverifiedRank(unresolvedMatches);
// Run scoring calculation
var system = new StandardElo();
var eloResult = system.Calculate(board.StartingRating, unverifiedWinnerRank, unverifiedLoserRank, tie);
match.WinnerRatingDelta = eloResult.WinnerDelta.RoundToWhole();
match.LoserRatingDelta = eloResult.LoserDelta.RoundToWhole();
match.WinnerEstimatedRating = unverifiedWinnerRank + match.WinnerRatingDelta;
match.LoserEstimatedRating = unverifiedLoserRank + match.LoserRatingDelta;
return(match);
}
public void RejectMatch(int boardId, int matchId, string userName)
{
// Used to match against match Loser profile for verification of rejection authority.
var competior = _repository.GetCompetitorByUserName(boardId, userName);
var board = _repository.GetBoardById(boardId);
bool adminRejection = false;
if (competior == null)
{
throw new InvalidOperationException("Can not find your profile.");
}
// All unresolved matches for this challenge board.
var unresolvedMatches =
_repository.GetUnresolvedMatchesByBoardId(boardId).OrderBy(x => x.VerificationDeadline).ToList();
var rejectedMatch = unresolvedMatches.SingleOrDefault(x => x.MatchId == matchId);
if (rejectedMatch == null)
{
throw new ServiceException("Can not find match.");
}
if (board.IsOwner(competior)) // Board owner can reject anything
{
adminRejection = true;
}
else if (rejectedMatch.DoesNotInvolve(competior)) // Participants have a say
{
throw new ServiceException("You are not able to modify this match.");
}
if (rejectedMatch.IsResolved)
{
throw new ServiceException("This match has already been resolved.");
}
if (DateTime.Now > rejectedMatch.VerificationDeadline)
{
throw new ServiceException("The deadline for rejecting this match has passed.");
}
rejectedMatch.Invalidate(competior);
// Anonymous list of unresolve matches taking place after the rejected match.
// * These are the matches we need to recalculate
var matchList =
unresolvedMatches.Select(
x => new { x.MatchId, x.Created })
.Where(x => x.Created >= rejectedMatch.Created && x.MatchId != rejectedMatch.MatchId);
var system = new StandardElo();
foreach (var match in matchList)
{
// Get unresolved matches prior to this one
var filteredUnresolved =
unresolvedMatches.Where(x => x.Created <= match.Created && x.MatchId != match.MatchId).ToList();
// Pick out the match to recalc and save
var matchToRecalc = unresolvedMatches.First(x => x.MatchId == match.MatchId);
// Figure unverified ratings. Parses and sums unverified matches
var unverifiedWinnerRank = matchToRecalc.Winner.CalculateUnverifiedRank(filteredUnresolved);
var unverifiedLoserRank = matchToRecalc.Loser.CalculateUnverifiedRank(filteredUnresolved);
// Run the recalc
var eloRecalc = system.Calculate(board.StartingRating, unverifiedWinnerRank, unverifiedLoserRank,
matchToRecalc.Tied);
// Update the ratings
matchToRecalc.WinnerRatingDelta = eloRecalc.WinnerDelta.RoundToWhole();
matchToRecalc.LoserRatingDelta = eloRecalc.LoserDelta.RoundToWhole();
matchToRecalc.WinnerEstimatedRating = unverifiedWinnerRank + matchToRecalc.WinnerRatingDelta;
matchToRecalc.LoserEstimatedRating = unverifiedLoserRank + matchToRecalc.LoserRatingDelta;
}
_repository.CommitChanges();
if (rejectedMatch.Withdrawn)
{
_mailService.SendEmail(rejectedMatch.Loser.Profile.EmailAddress, rejectedMatch.Loser.Profile.UserName,
"Match Withdrawn", EmailType.MatchWithdrawlNotice,
new MatchWithdrawlNotice
{
Withdrawer = rejectedMatch.Winner.Name,
Withdrawee = rejectedMatch.Loser.Name,
BoardName = board.Name,
});
}
else
{
_mailService.SendEmail(rejectedMatch.Winner.Profile.EmailAddress, rejectedMatch.Winner.Profile.UserName,
"Match Rejected", EmailType.MatchRejectionNotice,
new MatchRejectionNotice
{
RejectorName = adminRejection ? "the board administrator" : rejectedMatch.Loser.Name,
RejectedName = rejectedMatch.Winner.Name,
BoardName = board.Name,
BoardOwnerName = board.Owner.Name
});
}
}
