public void Update(int roverId, string roverName)
        {
            var rover = Get(roverId);

            rover.RoverName = roverName;
            RoverGlobalState.UpdateRover(roverId, rover);
        }
        public Rover Get(int roverId)
        {
            var rover = RoverGlobalState.GetRoverById(roverId);

            if (rover == null)
            {
                throw new RoverNotFoundException("Rover with id " + roverId + " not found");
            }

            return(rover);
        }
        public void Create(int roverId, string roverName)
        {
            var rover = new Rover(roverId, roverName);

            RoverGlobalState.SetNewRover(rover);
        }