private void UpdatePlayerRatings()
{
var calculator = new RatingCalculator(/* initVolatility, tau */);
// Instantiate a RatingPeriodResults object.
var results = new RatingPeriodResults();
var ratingsPlayers = new List <Tuple <User, Rating> >();
double team1Rating = Team1.Sum(x => x.SkillRating) / Team1.Count;
double team2Rating = Team2.Sum(x => x.SkillRating) / Team2.Count;
double team1RatingsDeviation = Team1.Sum(x => x.RatingsDeviation) / Team1.Count;
double team2RatingsDeviation = Team2.Sum(x => x.RatingsDeviation) / Team2.Count;
double team1Volatility = Team1.Sum(x => x.Volatility) / Team1.Count;
double team2Volatility = Team2.Sum(x => x.Volatility) / Team2.Count;
var team1RatingCalc = new Rating(calculator, team1Rating, team1RatingsDeviation, team1Volatility);
var team2RatingCalc = new Rating(calculator, team2Rating, team2RatingsDeviation, team2Volatility);
foreach (var player in Team1)
{
var playerRating = new Rating(calculator, player.SkillRating, player.RatingsDeviation, player.Volatility);
ratingsPlayers.Add(new Tuple <User, Rating>(player, playerRating));
if (WinningTeam == Team1)
{
results.AddResult(playerRating, team2RatingCalc);
}
else if (WinningTeam == Team2)
{
results.AddResult(team2RatingCalc, playerRating);
}
}
foreach (var player in Team2)
{
var playerRating = new Rating(calculator, player.SkillRating, player.RatingsDeviation, player.Volatility);
ratingsPlayers.Add(new Tuple <User, Rating>(player, playerRating));
if (WinningTeam == Team1)
{
results.AddResult(team1RatingCalc, playerRating);
}
else if (WinningTeam == Team2)
{
results.AddResult(playerRating, team1RatingCalc);
}
}
calculator.UpdateRatings(results);
foreach (var player in ratingsPlayers)
{
player.Item1.PreviousSkillRating = player.Item1.SkillRating;
player.Item1.SkillRating = player.Item2.GetRating();
player.Item1.RatingsDeviation = player.Item2.GetRatingDeviation();
player.Item1.Volatility = player.Item2.GetVolatility();
db.Users.Update(player.Item1);
}
db.SaveChanges();
}