public static void addLastRoom(Player player) {
		List<String> inRooms = RoomyLibrary.getRoomsIn(player);
		if (!Roomy.lastRoom.containsKey(player)) { // add players last room
			Roomy.lastRoom.put(player, inRooms);
		}
		else {
			if (Roomy.lastRoom.get(player).hashCode() != inRooms.hashCode()) {
				Roomy.lastRoom.put(player, inRooms);
				
				RoomyEvent event = new RoomyEvent(RoomyEvent.Reason.ROOM_CHANGE, player, inRooms);
				Roomy.getPlugin().getServer().getPluginManager().callEvent(event);
			}
		}
	}