public decimal GetMatchWinPercentage(Tournament tournament, Player player, int? roundNumber = null)
{
var achieved = GetMatchPoints(tournament, player, roundNumber);
var maximum = tournament
.GetPlayerMatches(player, roundNumber)
.Count() * MatchWin;
if(maximum == 0)
return 0.33m;
var rawPercentage = achieved / (decimal)maximum;
// Match win percentage is capped at 0.33 on the low end
return Math.Max(0.33m, rawPercentage);
}
public static IEnumerable <Game> GetPlayerGames(this Tournament tournament, Player player, int?roundNumber = null)
{
if (tournament == null)
{
return(null);
}
if (player == null)
{
return(null);
}
return(tournament
.GetPlayerMatches(player, roundNumber)
.SelectMany(match => match.Games));
}
public int GetMatchPoints(Tournament tournament, Player player, int? roundNumber = null)
{
return tournament
.GetPlayerMatches(player, roundNumber)
.Select(match => new PlayerStats(
wins: match.Games.Where(game => game.Winner == player).Count(),
losses: match.Games.Where(game => game.Winner != player && game.Winner != null).Count(),
draws: match.Games.Where(game => game.Winner == player).Count()
))
.Select(stats => stats.Wins > stats.Losses
? MatchWin
: stats.Wins == stats.Losses
? MatchDraw
: MatchLoss)
.Sum();
}
public static IEnumerable <Player> GetPlayerOpponents(this Tournament tournament, Player player, int?roundNumber = null)
{
if (tournament == null)
{
return(null);
}
if (player == null)
{
return(null);
}
return(tournament
.GetPlayerMatches(player, roundNumber)
.SelectMany(match => match.Players)
.Except(new[] { player })
.Distinct());
}
