/// <summary>
/// Makes the vehicle land at this airport.
/// </summary>
/// <param name="aerialVehicle">The vehicle to land.</param>
/// <returns>A message about whether the vehicle was able to land.</returns>
public string Land(AerialVehicle aerialVehicle)
{
// Make sure the plane can land.
if (aerialVehicle is null)
{
throw new ArgumentNullException("aerialVehicle", "Aerial vehicle cannot be null.");
}
else if (vehicles.Count >= maxVehicles)
{
return($"{aerialVehicle} can't land because the airport is full.");
}
else
{
// Fly the plane down and stop the engine.
aerialVehicle.FlyDown(aerialVehicle.CurrentAltitude);
aerialVehicle.StopEngine();
if (aerialVehicle.IsFlying)
{
return($"{aerialVehicle} was not able to land.");
}
else
{
// Add the vehicle to the airport.
vehicles.Add(aerialVehicle);
return($"{aerialVehicle} landed.");
}
}
}
public void Land(AerialVehicle a)
{
if (a.Isflying == false && Vehicle.Count < MaxVehicles)
{
a.StopEngine();
Vehicle.Add(a);
}
}
public string Land(AerialVehicle a)
{
a.FlyDown(a.CurrentAltitude);
a.StopEngine();
string land = $"{a} has just landed";
return(land);
}
public string Land(AerialVehicle a)
{
a.CurrentAltitude = 0;
a.StopEngine();
a.IsFlying = false;
Vehicles.Add(a);
return($"{a.ToString()} has landed");
}