private void CalculateEloResults(Dictionary <Guid, ResultHelper> a_StartResults, DateTime a_MatchDate, Game.GameType a_GameType)
{
// We need to increment the count for all players.
foreach (KeyValuePair <Guid, ResultHelper> i_Kvp in a_StartResults)
{
i_Kvp.Value.AmountGamesPlayed++;
}
Dictionary <Guid, KeyValuePair <DateTime, int> > v_TempResults = new Dictionary <Guid, KeyValuePair <DateTime, int> >();
// We only want to do it ONCE for each entry.
foreach (KeyValuePair <Guid, ResultHelper> i_Kvp in a_StartResults)
{
// Get the standings for given player.
Dictionary <Modifier, List <Guid> > v_Standings = CalculateStandings(i_Kvp.Key, a_GameType);
List <double> v_TempEloScores = new List <double>();
// Iterates over all standings. Standings contains n-1 individual Ids (where n is the amount of players in a match).
foreach (KeyValuePair <Modifier, List <Guid> > i_KvpInner in v_Standings)
{
double v_ModifierPlayer = EloCalculator.EstablishedStatusToModifier[i_Kvp.Value.IsEstablished][i_KvpInner.Key];
foreach (Guid i_OpponentId in i_KvpInner.Value)
{
/// The +1 is needed because we only increment the amount of played games inside AddResult.
/// In the old implementation was actually a defect because the counter for the active player
/// was incremented and the calculation used the old value for the opponent.
double v_TempEloScore = EloCalculator.CalculateEloRanking(
i_Kvp.Value.EloScore,
i_Kvp.Value.AmountGamesPlayed,
i_Kvp.Value.IsEstablished,
a_StartResults[i_OpponentId].EloScore,
a_StartResults[i_OpponentId].AmountGamesPlayed,
a_StartResults[i_OpponentId].IsEstablished,
v_ModifierPlayer
);
v_TempEloScores.Add(v_TempEloScore);
}
}
double v_NewEloScore = 0;
foreach (double i_TempScore in v_TempEloScores)
{
v_NewEloScore += i_TempScore;
}
if (v_TempEloScores.Count > 0)
{
v_NewEloScore = v_NewEloScore / v_TempEloScores.Count;
// Must NOT be applied immediately! We're putting the reults aside and apply them afterwards.
v_TempResults.Add(i_Kvp.Key, new KeyValuePair <DateTime, int>(a_MatchDate, (int)Math.Round(v_NewEloScore, 0)));
}
}
// Now we add the new results.
foreach (KeyValuePair <Guid, ResultHelper> i_Kvp in a_StartResults)
{
i_Kvp.Value.AddResult(v_TempResults[i_Kvp.Key].Key, v_TempResults[i_Kvp.Key].Value);
}
}