Абстрактная фабрика (Abstract Factory)

К основной странице курса

Назначение

Предоставляет интерфейс для создания компонентов системы.

Другое название

Инструментарий (Kit)

Реализация

Диаграмма классов

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Код

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MazeCommon;

namespace MazeGameAbstractFactory
{
    public class MazeFactory
    {
	public virtual Maze MakeMaze()
	{ 
            return new Maze(); 
        }
	public virtual Wall MakeWall()
	{ 
            return new Wall(); 
        }
	public virtual Room MakeRoom(int n)
	{ 
            return new Room(n); 
        }
	public virtual Door MakeDoor(Room r1, Room r2)
	{ 
            return new Door(r1,r2); 
        }
    };

    public class MazeGame
    {
        public Maze CreateMaze(MazeFactory f) 
        {
	    Maze aMaze = f.MakeMaze();
	    Room r1 = f.MakeRoom(1);
	    Room r2 = f.MakeRoom(2);
	    Door d = f.MakeDoor(r1,r2);

	    aMaze.AddRoom(r1);
	    aMaze.AddRoom(r2);

	    r1.SetSide(Direction.North, f.MakeWall());
            r1.SetSide(Direction.East, d);
            r1.SetSide(Direction.South, f.MakeWall());
            r1.SetSide(Direction.West, f.MakeWall());
            r2.SetSide(Direction.North, f.MakeWall());
            r2.SetSide(Direction.East, f.MakeWall());
            r2.SetSide(Direction.South, f.MakeWall());
            r2.SetSide(Direction.West, d);

	    return aMaze;
        }
    }

    public class BombedWall: Wall
    {
        public override object Clone()
        {
            return new BombedWall();
        }
    }

    public class RoomWithABomb: Room
    {
        public RoomWithABomb(int n): base(n)
        { }
        public override object Clone()
        {
            return new RoomWithABomb(this.RoomNumber);
        }
    }

    public class BombedMazeFactory : MazeFactory
    {
	    
        public override Room MakeRoom(int n)
	{ 
            return new RoomWithABomb(n); 
        }
        public override Wall MakeWall()
	{ 
            return new BombedWall(); 
        }
    };


    public class ProgramAbstractFactory
    {
        static void Main(string[] args)
        {
            Console.WriteLine("AbstractFactory");
            MazeGame game = new MazeGame();
            BombedMazeFactory f = new BombedMazeFactory();
            game.CreateMaze(f);
        }
    }
}