/**/#include "C++/MazeParts.H"#include "C++/MazeGame.H"#define MazeFactory_H/**/class MazeFactory {public:    MazeFactory();/**/    virtual Maze* MakeMaze() const        { return new Maze; }    virtual Wall* MakeWall() const        { return new Wall; }    virtual Room* MakeRoom(int n) const        { return new Room(n); }    virtual Door* MakeDoor(Room* r1, Room* r2) const        { return new Door(r1, r2); }};/**/Maze* MazeGame::CreateMaze (MazeFactory& factory) {    Maze* 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(North, factory.MakeWall());    r1->SetSide(East, aDoor);    r1->SetSide(South, factory.MakeWall());    r1->SetSide(West, factory.MakeWall());/**/    r2->SetSide(North, factory.MakeWall());    r2->SetSide(East, factory.MakeWall());    r2->SetSide(South, factory.MakeWall());    r2->SetSide(West, aDoor);    return aMaze;}/**/class EnchantedMazeFactory : public MazeFactory {public:    EnchantedMazeFactory();/**/    virtual Room* MakeRoom(int n)  const        { return new EnchantedRoom(n, CastSpell()); }/**/    virtual Door* MakeDoor(Room* r1, Room* r2)  const        { return new DoorNeedingSpell(r1, r2); }/**/protected:    Spell* CastSpell() const;};/**/#define EnchantedMazeFactory_H#include "C++/MazeFactories.H"/**/Wall* BombedMazeFactory::MakeWall () const {    return new BombedWall;}/**/Room* BombedMazeFactory::MakeRoom(int n) const {    return new RoomWithABomb(n);}/**/void dummy() {/**/MazeGame game;BombedMazeFactory factory;game.CreateMaze(factory);/**/}/**/