fix: fixed major bug where lobbyConnection termination wouldn't remove clients

Server/src/main/java/uulm/teamname/marvelous/server/lobby/Lobby.java

@@ -232,10 +232,13 @@ public class Lobby {
         badRequests++;
         //if the player sends 2 bad messages after one another, the player gets kicked out of the lobby.
         if (badRequests >= 5) {
+            Logger.info("Participant '{}' has sent too many bad requests, disconnecting...", source.id.getName());
             connection.removeParticipant(source);
             if (connection.hasPlayer1()) {
+                Logger.debug("Triggering win for Player 1");
                 triggerWin(connection.getPlayer1());
             } else if (connection.hasPlayer2()) {
+                Logger.debug("Triggering win for Player 2");
                 triggerWin(connection.getPlayer2());
             }
         }
@@ -251,6 +254,7 @@ public class Lobby {
                 source,
                 new EventBuilder(EventType.TimeoutWarningEvent)
                         .withTimeLeft(timeLeft)
+                        .withMessage("If you do not send a message soon, you will be time-outed")
                         .buildGameEvent());
     }
 
@@ -289,6 +293,7 @@ public class Lobby {
      * @param winner is the {@link Participant} that won
      */
     public synchronized void triggerWin(Participant winner) {
+        Logger.debug("Triggering win. Building events and broadcasting for winner of type '{}'", winner);
         connection.broadcastEvents(
                 new EventBuilder(EventType.WinEvent)
                         .withPlayerWon(winner.type.equals(ParticipantType.PlayerOne) ? 1 : 2)

Server/src/main/java/uulm/teamname/marvelous/server/lobbymanager/LobbyConnection.java

@@ -72,17 +72,21 @@ public class LobbyConnection implements Runnable {
 
     /** Disconnects a participant from the LobbyConnection */
     public void removeParticipant(Participant participant, String reason) {
+        if (participant != null) {
+            Logger.debug("Removing participant '{}' with role {} from lobby",
+                    participant.id.getName(), participant.type);
             LobbyManager.getInstance().removeParticipant(participant);
             UserManager.getInstance().removeClient(participant.getClient(), reason);
 
-        if(participant.type == ParticipantType.Spectator) {
+            if (participant.type == ParticipantType.Spectator) {
                 spectators.remove(participant);
-        } else if(participant.type == ParticipantType.PlayerOne) {
+            } else if (participant.type == ParticipantType.PlayerOne) {
                 player1 = null;
-        }else {
+            } else {
                 player2 = null;
             }
         }
+    }
 
     /** Returns the next free slot in the lobby as a {@link ParticipantType} */
     public ParticipantType freeSlot() {
@@ -181,6 +185,9 @@ public class LobbyConnection implements Runnable {
 
     public void terminate() {
         state = LobbyConnectionState.Aborted;
+        removeParticipant(player1);
+        removeParticipant(player2);
+        spectators.forEach(this::removeParticipant);
     }
 
 
@@ -224,35 +231,43 @@ public class LobbyConnection implements Runnable {
         Tuple<Participant, Request[]> current = null;
         try {
             current = requestQueue.poll(1000, TimeUnit.MILLISECONDS);
-        }catch (InterruptedException e) {
+        } catch (InterruptedException ignored) {}
-
-        }
         return current;
     }
 
 
     private void broadcast(BasicMessage message) {
-        player1.sendMessage(message);
+        Logger.trace("Broadcasting message of type {} to all members of lobby", message.messageType);
-        player2.sendMessage(message);
+        if (player1 != null) player1.sendMessage(message);
+        if (player2 != null) player2.sendMessage(message);
         spectators.forEach(spectator -> spectator.sendMessage(message));
     }
 
     private void broadcastToSpectators(BasicMessage message) {
+        Logger.trace("Broadcasting message of type {} to all spectators", message.messageType);
         spectators.forEach(spectator -> spectator.sendMessage(message));
     }
 
     private void broadcastToAllExcept(Participant except, BasicMessage message) {
+        Logger.trace("Sending message of type {} to all except participant with role {}",
+                message.messageType, except == null ? "NONE" : except.type);
+        if (except != null) {
             if (!except.equals(player1)) player1.sendMessage(message);
             if (!except.equals(player2)) player2.sendMessage(message);
-        for(Participant spectator: spectators) {
+            for (Participant spectator : spectators) {
-            if(!except.equals(spectator)) {
+                if (!except.equals(spectator)) {
                     spectator.sendMessage(message);
                 }
             }
+        } else {
+            broadcast(message);
+        }
     }
 
 
     public void sendEvents(Participant recipient, Event... events) {
+        Logger.trace("Sending {} events to participant with role {}",
+                events.length, recipient == null ? "NONE" : recipient.type);
         if (recipient != null) {
             EventMessage message = new EventMessage();
             message.messages = events;
@@ -266,6 +281,7 @@ public class LobbyConnection implements Runnable {
     }
 
     public void broadcastEvents(Event... events) {
+        Logger.trace("Broadcasting {} events", events.length);
         EventMessage message = new EventMessage();
         message.messages = events;
 
@@ -273,6 +289,8 @@ public class LobbyConnection implements Runnable {
     }
 
     public void broadcastToAllExcept(Participant except, Event... events) {
+        Logger.trace("Broadcasting {} events to all except participant with role {}",
+                events.length, except == null ? "NONE" : except.type);
         var message = new EventMessage();
         message.messages = events;
 

Server/src/main/java/uulm/teamname/marvelous/server/lobbymanager/LobbyManager.java

@@ -251,6 +251,8 @@ public class LobbyManager {
      * Lobby because of a timeout.
      */
     public void removeParticipant(Participant participant) {
+        if (participant != null) {
             participants.remove(participant.id);
         }
+    }
 }