prototype.c

来自「Design Pattern C Source Code」· C语言 代码 · 共 141 行

/*
*/
#ifdef SampleCode1
#include "C++/MazeGame.H"
#include "C++/MazeFactory.H"
#include "C++/MazeParts.H"
/*
*/
class MazePrototypeFactory : public MazeFactory {
public:
    MazePrototypeFactory(Maze*, Wall*, Room*, Door*);
/*
*/
    virtual Maze* MakeMaze() const;
    virtual Room* MakeRoom(int) const;
    virtual Wall* MakeWall() const;
    virtual Door* MakeDoor(Room*, Room*) const;
/*
*/
private:
    Maze* _prototypeMaze;
    Room* _prototypeRoom;
    Wall* _prototypeWall;
    Door* _prototypeDoor;
};
/*
*/
MazePrototypeFactory::MazePrototypeFactory (
    Maze* m, Wall* w, Room* r, Door* d
) {
   _prototypeMaze = m;
   _prototypeWall = w;
   _prototypeRoom = r;
   _prototypeDoor = d;
}
/*
*/
Wall* MazePrototypeFactory::MakeWall () const {
    return _prototypeWall->Clone();
}
/*
*/
Door* MazePrototypeFactory::MakeDoor (Room* r1, Room *r2) const {
    Door* door = _prototypeDoor->Clone();
    door->Initialize(r1, r2);
    return door;
}
/*
*/
void dummy () {
/*
*/
MazeGame game;
MazePrototypeFactory simpleMazeFactory(
    new Maze, new Wall, new Room, new Door
);

Maze* maze = game.CreateMaze(simpleMazeFactory);
/*
*/
}
void dummy2 () {
/*
*/
MazePrototypeFactory bombedMazeFactory(
    new Maze, new BombedWall,
    new RoomWithABomb, new Door
);
/*
*/
}
#endif
#ifdef SampleCode2
#define Door_H
#define BombedWall_H
#define DoorNeedingSpell_H
#include "C++/MazeParts.H"
/*
*/
class Door : public MapSite {
public:
    Door();
    Door(const Door&);
/*
*/
    virtual void Initialize(Room*, Room*);
    virtual Door* Clone() const;
/*
*/
    virtual void Enter();
    Room* OtherSideFrom(Room*);
private:
    Room* _room1;
    Room* _room2;
};
/*
*/
Door::Door (const Door& other) {
    _room1 = other._room1;
    _room2 = other._room2;
}
/*
*/
void Door::Initialize (Room* r1, Room* r2) {
    _room1 = r1;
    _room2 = r2;
}
/*
*/
Door* Door::Clone () const {
    return new Door(*this);
}
/*
*/
class BombedWall : public Wall {
public:
    BombedWall();
    BombedWall(const BombedWall&);
/*
*/
    virtual Wall* Clone() const;
    bool HasBomb();
private:
    bool _bomb;
};
/*
*/
BombedWall::BombedWall (const BombedWall& other) : Wall(other) {
    _bomb = other._bomb;
}
/*
*/
Wall* BombedWall::Clone () const {
    return new BombedWall(*this);
}
/*
*/
#endif
/*
*/