public string Land(AerialVehicle a)
{
if (this.Vehicles.Count < this.MaxVehicles)
{
this.Vehicles.Add(a);
if (a.currentAltitude > 0)
{
a.FlyDown(a.currentAltitude);
}
return(string.Format("{0} lands at {1}", a, this.AirportCode));
}
return(string.Format($"{this} is full. Can't land here"));
}
public string TakeOff(AerialVehicle a)
{
this.Vehicles.Remove(a);
return(a.TakeOff() + " from " + this.AirportCode);
}