一個用C++編寫的五子棋游戲

/////////////////////////////////
    //
    // Main.Cpp by Yuheng Zhao
    //
    /////////////////////////////////
    #include "types.h"
    #include "mouse.h"
    #include "shell.h"
    #include "luffar.h"
    int main(void)
    {
    InitMouse();
    InitGraphics();
    DrawBackground();
     SetPoint(1,1); // L刧ger musen p?punkten 1,1.
    ShowPoint();
     BOOL bWantToExit = FALSE;
    CPlayer player1(1);
    CPlayer player2(2);
    player2.ChangePlayer(TRUE);
    CBoard board(&player1,&player2);
    int winner=-1;
    int nCode=-1;
    int x,y,b=-1;
     CButton player1Button(CRect(480,50,610,70),"Player 1");
    CButton player2Button(CRect(480,75,610,95),"Computer");
    CButton newButton(CRect(450,430,530,450),"New");
    CButton quitButton(CRect(540,430,620,450),"Quit");
     board.Draw();
    newButton.Draw();
    quitButton.Draw();
    player1Button.Draw();
    player2Button.Draw();
     Message("Luffar Schack! 0.99");
    Message("Written by");
    Message("Yuheng Zhao 1997-5");
    Message("------------------");
    Message("New game ...");
     while (!bWantToExit)
    {
    ReadMouse(x,y,b);
     if (b==1)
    {
    if (quitButton.Clicked(x,y,b))
    {
    Message("Exit...");
    player2.ChangePlayer(FALSE);
    bWantToExit = TRUE;
    delay(200);
    }
    if (newButton.Clicked(x,y,b))
    {
    board.ResetBoard();
    }
    if (player1Button.Clicked(x,y,b))
    ;
    if (player2Button.Clicked(x,y,b))
    {
    if (player2.IsComputer())
    {
    player2.ChangePlayer(FALSE);
    player2Button.SetWindowText("Player 2");
    }else
    {
    player2.ChangePlayer(TRUE);
    player2Button.SetWindowText("Computer");
    };
    delay(200);
    }
    b=-1;
    }
    winner=board.Go();
    if (winner==1 || winner==2)
    {
    Message((winner==1)?"Player 1 wins.":
    (player2.IsComputer())?"Computer wins":"Player 2 wins");
    nCode=(winner==1)?ShowWinDlg(&player1):ShowWinDlg(&player2);
    if (nCode==1)
    board.ResetBoard();
    }
    }
     HidePoint();
    closegraph();
    return 0;
    }
    -------------------------------------------------------------------