board.h

使用面向对象方法作的棋牌类游戏

// define the  different class for simple board game

 const int MAX_ROWS = 9;		// Maximum rows
 const int MAX_COLUMNS = 9;	// Maximum columns

 const int WINNING_LINE = 4;
 const int NUM_PLAYERS = 2;    	// Maximum numbers of players is 4
 const int DEFAULT_ROWS = 6;		// Default numbers of rows
 const int DEFAULT_COLUMNS = 7;  // Default numbers of columns

 enum Boolean {False , True };
 enum BoardState {DRAW, WIN, PLAY};

 const char INVISIBLE = ' ';
 const int SELECT_REPRESENTATION = 1;



// Used to represent a counter that will be dropped into column on the gaming
// board

class Counter
{
	 private:
	 static int tokenNum;	// which token to allocate
	 char theToken;			// the token used as the counter

	 public:
	 static void setTokenNum();
	 Counter();
	 Counter( const char);
	 Counter (const int);
	 ~Counter() {}
	 char token() const;       // returns the characters
	 void display () const;    // display the character to screen
};



// represent a game player, makes move and announces win or draw

class Player
{
    private:
	 Counter thePlayersCounter;

	 public:
	 Player ();          // constructor assigns a token for the player
	 ~Player() { }       // destructor
	 int getMove(const Boolean ) const;      // Ask for a move

	 Counter getCounter () const;         // Get a counter

	 void announce(const BoardState)const;  // allows the player to announce the win or draw


};

// represent the individual cell in the gaming board

class Cell
{
    private:
	 Counter theCounter;		// the counter in this cell
	 public:
	 Cell();     // sets the cel to contain the space ' ' character
	 ~Cell() {}  // destructor
	 void clear();   // clear the cell to place space character ' '.
	 void drop (const Counter);     // drops the counter in the cell
	 char holds()const;   // report back the token representation of the counter
	 void display()const; // request the counter to display itself


};


//The gaming board which which appears on the computer
class Board
{
	private:
	Cell grid[MAX_ROWS][MAX_COLUMNS];	//playing board made up of cells
	int height[MAX_COLUMNS];				// current height of counters col
	int rowSize;
	int columnSize;							// size of the playing area
	int lastRow;        // row of the last counter
	int lastCol;        // col of the last counter
	int numEmptyCells;    // remaining empty cell

	protected:
	int checkForWin ( const int ,const int ,const int, const char )const;
	void addCounterToBoard (const int,const Counter);
	Boolean isThereAWin()const ;  // check for a win

	 public:
					  // constructor default size 6 x 7
	 Board (const int rows =DEFAULT_ROWS,const int columns = DEFAULT_COLUMNS);

	 ~Board() { }      // destructor
	  // reset the game for new game
	 void reset (const int rows =DEFAULT_ROWS,const int columns = DEFAULT_COLUMNS);

	 void dropInColumn (const int,const Counter );      // drop the counter in the column

	 Boolean moveOkForColumn (const int) const;         // check for valid col number and
														 // col is not full

	 void display()const;                    // draw the board

	 BoardState situation()const;                   // reports the state of the game


};


// Co-ordinate Board Game

class Game
{
	 private:                     // the playing board
	 Board board;
	 BoardState state;
	 Player contestant[NUM_PLAYERS];    // holds the number of player
	 int num;

	 public:
	 Game();
	 ~Game(){}  // destructor
	 void play ();       // controls the game play until the state of the game
								// changes

};

// end of board.h