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    发贴心情 设计模式之C#实现(一)--AbstractFactory(补)


    发信人: wrighten (wrighten), 信区: DotNET
    标  题: 设计模式之C#实现(一)--AbstractFactory(补)
    发信站: BBS 水木清华站 (Fri Mar  5 11:03:33 2004), 转信

    此文章是为了补充下面的文章所写,详细信息可以去下面看
      http://www.csdn.net/Develop/read_article.asp?id=20943
      GOF书中的例子用C#实现的源码:
      using System;
      namespace AbstractFactory_Maze{
       using Maze;
       public interface AbstractFactory{
        MazeClass MakeMaze();
        Wall MakeWall();
        Room MakeRoom(int n);
        Door MakeDoor(Room oneRoom,Room otherRoom);
       }
       public class MazeFactory : AbstractFactory{
        public MazeClass MakeMaze(){
         return new MazeClass();
        }
       public Wall MakeWall(){
        return new Wall();
       }
       public Room MakeRoom(int n){
        return new Room(n);
       }
       public Door MakeDoor(Room oneRoom,Room otherRoom){
        return new Door(oneRoom,otherRoom);
        }
       }
       // this is a client

       public class MazeGame{
        public MazeClass MazeCreate(AbstractFactory factory){
        MazeClass aMaze = factory.MakeMaze();
        Room r1 = factory.MakeRoom(1);
        Room r2 = factory.MakeRoom(2);
        Door aDoor = factory.MakeDoor(r1,r2);
        aMaze.AddRoom(r1);
        aMaze.AddRoom(r2);
        r1.SetSide(Direction.North,factory.MakeWall());
        r1.SetSide(Direction.East,aDoor);
        r1.SetSide(Direction.South,factory.MakeWall());
        r1.SetSide(Direction.West,factory.MakeWall());
        r2.SetSide(Direction.North,factory.MakeWall());
        r2.SetSide(Direction.East,factory.MakeWall());
        r2.SetSide(Direction.South,factory.MakeWall());
        r2.SetSide(Direction.West,aDoor);
        return aMaze;
        }
       }
      }
      namespace Maze{
       using System.Collections;
       public class MapSite{
       public virtual void Enter(){}
       }
       public enum Direction {North,South,East,West}
        public class Room : MapSite{
        public string Print(){
        string result = "";
        for(int i = 0 ;i<=3;i++){
         switch(i){
          case (int)Direction.East:{
          result += "East is:"+this.GetSide(Direction.East)+"\t";
          break;
          }
          case (int)Direction.North:{
          result += "North is:"+this.GetSide(Direction.North)+"\t";
          break;
          }
          case (int)Direction.South:{
          result += "South is:"+this.GetSide(Direction.South)+"\t";
          break;
          }
          case (int)Direction.West:{
          result += "West is:"+this.GetSide(Direction.West)+"\t";
          break;
          }
         }
       }
       return result;
    }
       public Room(int n){
       this.m_roomNumber = n;
       }
       public MapSite GetSide(Direction dir){
       return this.m_sides[(int)dir];
       }
       public void SetSide(Direction dir,MapSite mapSite){
       this.m_sides[(int)dir] = mapSite;
       }
       public override void Enter(){}
       private MapSite[] m_sides = new MapSite[4];
       int m_roomNumber;
      }
       public class Wall : MapSite{
        public Wall(){}
        public override void Enter(){}
       }

       public class Door : MapSite{
        public Door(Room oneRoom,Room otherRoom){}
        public override void Enter(){}
        public Room oneRoom{
         get{return this.m_oneRoom;}
         set{this.m_oneRoom = value;}
       }

       private Room m_oneRoom;
       public Room otherRoom{
       get{return this.m_otherRoom;}
       set{this.m_otherRoom = value;}
       }

       private Room m_otherRoom;
       private bool m_isOpen;
       public bool IsOpen{
        get{return this.m_isOpen;}
        set{this.m_isOpen = value;}
       }
      }

       public class MazeClass{
        public MazeClass(){}
        public string Print(){
        string result = "";
        for(int i = 0; i<=this.m_Maze.Count-1;i++){
        result +=this.RoomNumber(i).Print()+"\n";
       }
        return result;
      }

      public void AddRoom(Room room){
       m_Maze.Add(room);
      }
       public Room RoomNumber(int roomNumber){
        return (Room)this.m_Maze[roomNumber];
       }
       private ArrayList m_Maze = new ArrayList();
      }
    }
       private void Form1_Load(object sender, System.EventArgs e) {
       AbstractFactory factory = new MazeFactory();
       MazeGame game = new MazeGame();
       MazeClass aMaze = game.MazeCreate(factory);
       this.richTextBox1.AppendText(aMaze.Print());
      }


      以下为输出结果:

      North is:Maze.Wall South is:Maze.Wall East is:Maze.Door West is:Maze.Wall

      North is:Maze.Wall South is:Maze.Wall East is:Maze.Wall West is:Maze.Door

        

    --
    情人节一个人过。。。。。。
    cplusplus forever


    ※ 来源:·BBS 水木清华站 smth.org·[FROM: 202.113.16.*]
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