added missing gradle files

src/main/java/eu/mhsl/minenet/minigames/instance/room/Room.java

@@ -25,7 +25,8 @@ import java.util.logging.Logger;
 import java.util.stream.Collectors;
 
 public class Room extends MineNetInstance implements Spawnable {
-    private static final Map<Player, Room> rooms = new WeakHashMap<>();
+    private static final Set<Room> rooms = new HashSet<>();
+    private static final Map<Player, Room> players = new WeakHashMap<>();
     private static final Logger logger = Logger.getLogger("room");
 
     public static Room createRoom(Player owner) {
@@ -34,15 +35,22 @@ public class Room extends MineNetInstance implements Spawnable {
         return getRoom(owner).orElseThrow();
     }
 
+    public static Room createOwnerlessRoom() {
+        Room room = new Room();
+        rooms.add(room);
+        return room;
+    }
+
     public static void deleteRoom(Room room) {
         logger.info("Deleting room " + room.uniqueId);
-        rooms.values().removeAll(Collections.singleton(room)); // remove(room) would only remove the first one
+        rooms.remove(room);
+        players.values().removeAll(Collections.singleton(room));
         room.getAllMembers().forEach(player -> MoveInstance.move(player, Hub.INSTANCE));
         MoveInstance.forceCloseInstance(room);
     }
 
     public static Optional<Room> getRoom(Player p) {
-        return Optional.ofNullable(rooms.get(p));
+        return Optional.ofNullable(players.get(p));
     }
 
     public static void setOwnRoom(Player p) {
@@ -50,42 +58,45 @@ public class Room extends MineNetInstance implements Spawnable {
     }
 
     public static void setRoom(Player p, Room room) {
-        logger.info("Set room for player " + p.getUsername() + " to room by " + room.owner.getUsername());
         p.clearEffects();
         p.clearTitle();
         p.getInventory().clear();
         p.setGameMode(GameMode.ADVENTURE);
-        rooms.put(p, room);
+        rooms.add(room);
+        players.put(p, room);
         MoveInstance.move(p, room);
     }
 
     public static void unsetRoom(Player p) {
         logger.info("Unset room for " + p.getUsername());
-        rooms.remove(p);
+        players.remove(p);
     }
 
     public static Set<Room> getAllRooms() {
-        return new HashSet<>(rooms.values());
+        return rooms;
     }
 
     private Player owner;
+    public final UUID uuid = UUID.randomUUID();
     private GameSelector gameSelector;
     private Room(Player owner) {
         super(Dimension.THE_END.DIMENSION);
         construct();
         setOwner(owner);
-        this.gameSelector = new GameSelector();
-        this.gameSelector.setInstance(this, new Pos(0.5, 50, 19.5));
     }
 
     protected Room() {
         super(Dimension.THE_END.DIMENSION);
+        construct();
     }
 
     private void construct() {
         MinecraftServer.getInstanceManager().registerInstance(this);
         setChunkLoader(new AnvilLoader(Resource.LOBBY_MAP.getPath()));
 
+        this.gameSelector = new GameSelector();
+        this.gameSelector.setInstance(this, new Pos(0.5, 50, 19.5));
+
         eventNode().addListener(PlayerBlockBreakEvent.class, CommonEventHandles::cancel);
         eventNode().addListener(PlayerDisconnectEvent.class, playerDisconnectEvent -> unsetRoom(playerDisconnectEvent.getPlayer()));
     }
@@ -128,7 +139,7 @@ public class Room extends MineNetInstance implements Spawnable {
     }
 
     public Set<Player> getAllMembers() {
-        return rooms.keySet().stream()
+        return players.keySet().stream()
                 .filter(player -> getRoom(player).orElse(null) == this)
                 .collect(Collectors.toSet());
     }

src/main/java/eu/mhsl/minenet/minigames/instance/room/entity/GameSelector.java

@@ -37,10 +37,7 @@ public class GameSelector extends InteractableEntity {
         if(playerEntityInteractEvent.getPlayer() != room.getOwner()) {
             abstractVillagerMeta.setHeadShakeTimer(20);
 
-            new ChatMessage(Icon.ERROR).appendStatic("Only the room leader can start games!").newLine()
-                    .appendStatic("current leader: ").appendStatic(room.getOwner().getUsername())
-                    .send(playerEntityInteractEvent.getPlayer());
-
+            new ChatMessage(Icon.ERROR).appendStatic("Only the room leader can start games!").send(playerEntityInteractEvent.getPlayer());
             return;
         }