private void deleteRoom(JSONObject obj) {
		RoomInfo roomInfo = roomMap.remove(obj.get("id_room"));
		
		if(roomInfo!=null)
		{
			for(Team team : roomInfo.getTeams().values())
			{
				for(User user : team.getMembers())
				{
					clientMap.remove(user.getId());
				}
			}
		}
	}