private PlayerResponse GetPlayer(int?playerId = null, string username = null)
{
var row = _context.Players
.Include(x => x.Badges)
.Include(x => x.Matches)
.ThenInclude(x => x.Match)
.Select(x => new {
LastMatch = x.Matches.OrderByDescending(x => x.Match.StartDate).FirstOrDefault(),
Player = x
})
.FirstOrDefault(x => string.IsNullOrEmpty(username) ? x.Player.Id == playerId : x.Player.Username == username);
if (row == null)
{
throw new NotFoundException("Player not found");
}
var response = _mapper.Map <PlayerResponse>(row.Player);
response.ConservativeRating = _ratingService.GetConservative(row.Player.RatingMean, row.Player.RatingDeviation);
if (row.LastMatch != null)
{
response.MatchId = row.LastMatch.MatchId.ToString();
var decayStep = _decayService.GetDecaySteps(row.LastMatch.DecayDays, row.LastMatch.Match.StartDate);
response.TotalDecay = _decayService.GetDecayValues(decayStep);
response.RegainDecay = _decayService.GetDecayValue(decayStep);
}
return(response);
}
private int GetPlayerDecay(Player player)
{
if (player.Division != Division.Master)
{
return(0);
}
var lastMatch = GetLastMatchByPlayerId(player.Id);
if (lastMatch == null)
{
return(0);
}
var previousDecay = lastMatch.MatchPlayers.ToList().Where(x => x.PlayerId == player.Id).Select(x => x.DecayDays).FirstOrDefault();
return(_decayService.GetDecaySteps(previousDecay, lastMatch.StartDate));
}
public void RerateAll()
{
var players = _context.Players
.Include(x => x.Matches)
.ToList();
// Reset player ratings to their initial values
var ratings = new Dictionary <int, PlayerRating>();
foreach (var p in players)
{
ratings.Add(p.Id, GetDefaultRating());
}
ratings[1442].Level = 1;
var matches = _context.Matches
.Include(x => x.MatchPlayers)
.Where(x => x.Status != MatchStatus.InProgress)
.OrderBy(x => x.StartDate)
.ToList();
foreach (var match in matches)
{
foreach (var matchPlayer in match.MatchPlayers)
{
var playerRating = ratings.GetValueOrDefault(matchPlayer.PlayerId, GetDefaultRating());
var currentDecay = _decayService.GetDecaySteps(playerRating.DecayDays, playerRating.LastMatchTimestamp, match.StartDate);
matchPlayer.Player.Division = playerRating.Division;
matchPlayer.Player.Level = playerRating.Level;
matchPlayer.OldRatingMean = playerRating.RatingMean;
matchPlayer.OldRatingDeviation = playerRating.RatingDeviation;
matchPlayer.DecayDays = currentDecay;
}
RateMatch(match);
foreach (var matchPlayer in match.MatchPlayers)
{
var playerRating = ratings.GetValueOrDefault(matchPlayer.PlayerId, GetDefaultRating());
var newDivision = GetNewDivisionAndLevel(playerRating.Division, playerRating.Level, matchPlayer.IsWin);
playerRating.Division = newDivision.Division;
playerRating.Level = newDivision.Level;
playerRating.RatingMean = matchPlayer.NewRatingMean;
playerRating.RatingDeviation = matchPlayer.NewRatingDeviation;
playerRating.DecayDays = matchPlayer.DecayDays;
playerRating.LastMatchTimestamp = match.StartDate;
}
if (match.Id % 10 == 0)
{
_context.SaveChanges();
}
}
foreach (var p in players)
{
p.RatingMean = ratings[p.Id].RatingMean;
p.RatingDeviation = ratings[p.Id].RatingDeviation;
p.Division = ratings[p.Id].Division;
p.Level = ratings[p.Id].Level;
}
_context.SaveChanges();
}
