// Builder uses a complex series of steps
public void Construct(VehicleBuilder vehicleBuilder)
{
vehicleBuilder.BuildFrame();
vehicleBuilder.BuildEngine();
vehicleBuilder.BuildWheels();
vehicleBuilder.BuildDoors();
}
public Vehicle Build(VehicleBuilder vehicle)
{
vehicle.BuildFrame();
vehicle.BuildEngine();
vehicle.BuildDoors();
vehicle.BuildWheels();
return(vehicle.Vehicle);
}