Add an exception to the soft max player cap for players who joined the game at some point during the current round. (#6245)

Content.Server/GameTicking/GameTicker.Lobby.cs

@@ -16,6 +16,8 @@ namespace Content.Server.GameTicking
         [ViewVariables]
         private readonly Dictionary<IPlayerSession, LobbyPlayerStatus> _playersInLobby = new();
 
+        [ViewVariables] private readonly HashSet<NetUserId> _playersInGame = new();
+
         [ViewVariables]
         private TimeSpan _roundStartTime;
 
@@ -29,6 +31,7 @@ namespace Content.Server.GameTicking
         private bool _roundStartCountdownHasNotStartedYetDueToNoPlayers;
 
         public IReadOnlyDictionary<IPlayerSession, LobbyPlayerStatus> PlayersInLobby => _playersInLobby;
+        public IReadOnlySet<NetUserId> PlayersInGame => _playersInGame;
 
         private void UpdateInfoText()
         {

Content.Server/GameTicking/GameTicker.Player.cs

@@ -134,12 +134,15 @@ namespace Content.Server.GameTicking
             if (_playersInLobby.ContainsKey(session))
                 _playersInLobby.Remove(session);
 
+            _playersInGame.Add(session.UserId);
+
             RaiseNetworkEvent(new TickerJoinGameEvent(), session.ConnectedClient);
         }
 
         private void PlayerJoinLobby(IPlayerSession session)
         {
             _playersInLobby[session] = LobbyPlayerStatus.NotReady;
+            _playersInGame.Remove(session.UserId);
 
             var client = session.ConnectedClient;
             RaiseNetworkEvent(new TickerJoinLobbyEvent(), client);

Content.Server/GameTicking/GameTicker.RoundFlow.cs

@@ -429,7 +429,7 @@ namespace Content.Server.GameTicking
             }
             // This ordering mechanism isn't great (no ordering of minds) but functions
             var listOfPlayerInfoFinal = listOfPlayerInfo.OrderBy(pi => pi.PlayerOOCName).ToArray();
-
+            _playersInGame.Clear();
             RaiseNetworkEvent(new RoundEndMessageEvent(gamemodeTitle, roundEndText, roundDuration, listOfPlayerInfoFinal.Length, listOfPlayerInfoFinal));
         }