Author: Yasser Jaber

// Create BuildingLine with vehicle builders
BuildingLine buildingLine = new BuildingLine();

// Construct and display vehicles
builder = new ScooterVehicleBuilder();
buildingLine.Construct(builder);
builder.Vehicle.Show();

builder = new CarVehicleBuilder();
buildingLine.Construct(builder);
builder.Vehicle.Show();

builder = new MotorCycleVehicleBuilder();
buildingLine.Construct(builder);
builder.Vehicle.Show();

// Wait for user
Console.ReadKey();
}

class BuildingLine
{
// Builder uses a complex series of steps
public void Construct(VehicleBuilder vehicleBuilder)
{
vehicleBuilder.BuildFrame();
vehicleBuilder.BuildEngine();
vehicleBuilder.BuildWheels();
vehicleBuilder.BuildDoors();
}
}

class CarVehicleBuilder : VehicleBuilder
{
public CarVehicleBuilder()
{
vehicle = new Vehicle(“Car Vehicle”);
}

public override void BuildFrame()
{
vehicle.Frame = “Car Vehicle Frame”;
}

public override void BuildEngine()
{
vehicle.Engine = “3000 CC capicity”;
}

public override void BuildWheels()
{
vehicle.Wheels  = 4;
}

public override void BuildDoors()
{
vehicle.Doors = “4”;
}
}

class MotorCycleVehicleBuilder : VehicleBuilder
{
public MotorCycleVehicleBuilder()
{
vehicle = new Vehicle(“MotorCycle Vehicle”);
}

public override void BuildFrame()
{
vehicle.Frame =  “MotorCycle Vehicle Frame”;
}

public override void BuildEngine()
{
vehicle.Engine =  “300 CC Capacity”;
}

public override void BuildWheels()
{
vehicle.Wheels =  2;
}

public override void BuildDoors()
{
vehicle.Doors =  “0”;
}
}

class ScooterVehicleBuilder : VehicleBuilder
{
public ScooterVehicleBuilder()
{
vehicle = new Vehicle(“Scooter Vehicle”);
}

public override void BuildFrame()
{
vehicle.Frame = “Scooter Vehicle Frame”;
}

public override void BuildEngine()
{
vehicle.Engine = “50 CC Capacity”;
}

public override void BuildWheels()
{
vehicle.Wheels  = 2;
}

public override void BuildDoors()
{
vehicle.Doors = “0”;
}
}

class Vehicle
{

private string _vehicleType;

// Constructor
public Vehicle(string vehicleType)
{
this._vehicleType = vehicleType;
}

public string Frame { get; set; }
public string Engine { get; set; }
public int Wheels { get; set; }
public string Doors { get; set; }

public void Show()
{
Console.WriteLine(“\n—————————“);
Console.WriteLine(“Vehicle Type: {0}”, _vehicleType);
Console.WriteLine(” Frame : {0}”, this.Frame);
Console.WriteLine(” Engine : {0}”, this.Engine);
Console.WriteLine(” #Wheels: {0}”, this.Wheels);
Console.WriteLine(” #Doors : {0}”, this.Doors);
}

}

abstract class VehicleBuilder
{
protected Vehicle vehicle;

// Gets vehicle instance
public Vehicle Vehicle
{
get { return vehicle; }
}

// Abstract build methods
public abstract void BuildFrame();
public abstract void BuildEngine();
public abstract void BuildWheels();
public abstract void BuildDoors();
}