private bool HavePlayedTogether(PlayerSwissPairing player1, PlayerSwissPairing player2)
{
var pairingsWithPlayer1 = _event.Rounds
.SelectMany(r => r.Pairings)
.Where(pairing => pairing.Players.Any(player => player.Id == player1.Player.Id));
if (pairingsWithPlayer1.Any(pairing => pairing.Players.Any(player => player.Id == player2.Player.Id)))
{
return(true);
}
return(false);
}
private PlayerSwissPairing GetNextOpposingPlayer(PlayerSwissPairing player, Round nextRound, PlayerSwissPairing[] playerSwissPairingArray)
{
var playersOrderedByNbWins = playerSwissPairingArray
.Where(p => !p.IsPaired && p.Player.Id != player.Player.Id)
.OrderByDescending(p => p.NbWins)
.ToArray();
if (playersOrderedByNbWins.Length == 0)
{
return(null);
}
for (int i = 0; i < playersOrderedByNbWins.Length; i++)
{
if (!HavePlayedTogether(player, playersOrderedByNbWins[i]))
{
return(playersOrderedByNbWins[i]);
}
}
return(null);
}