1，五子棋游戏的规则简介：

　　　　双方依次下子，谁先连成五子一条线则胜利。

2，

/*****************************************/

FIR.pro：

　　

#-------------------------------------------------

#

# Project created by QtCreator 2012-09-01T15:09:11

#

#-------------------------------------------------

QT       += core gui

TARGET = FIR

TEMPLATE = app

SOURCES += main.cpp\

        widget.cpp

HEADERS  += widget.h

/******************************/

wight.h:

 

#ifndef WIDGET_H

#define WIDGET_H

#include <QtGui>

class Widget : public QWidget

{

    Q_OBJECT

private:

    int a[15][15];

    int player;

    bool isWin(int, int);

    bool f1(int, int);

    bool f2(int, int);

    bool f3(int, int);

    bool f4(int, int);

public:

    Widget(QWidget *parent = 0);

    ~Widget();

    void paintEvent(QPaintEvent *);

    void mousePressEvent(QMouseEvent * e);

};

#endif // WIDGET_H

/*****************************************/

main:

 

#include <QtGui/QApplication>

#include "widget.h"

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    Widget w;

    w.show();

   

    return a.exec();

}

 

 

/*****************************************/

widget.cpp

 

#include "widget.h"

Widget::Widget(QWidget *parent)

    : QWidget(parent)

{

    resize(640, 640);

    player = 0;

    memset(a, 0, 15 * 15 * sizeof(int));

}

Widget::~Widget()

{

   

}

　　画方格：

void Widget::paintEvent(QPaintEvent *)

{

    QPainter p(this);

    int i , j ;

    for(i = 0; i < 16; i++)

    {

        p.drawLine(20, 20 + i * 40, 620, 20 + i * 40);

        p.drawLine(20 + i * 40, 20, 20 + i * 40, 620);

    }

    int m = 5;

    int n = 0;

    while(1)

    {

                QBrush brush(Qt::SolidPattern);

                brush.setColor(Qt::blue);

                p.setBrush(brush);

           //     p.drawRect((i+1)*20,(j+1)*20,80,80);//zheng fang xing

            //    p.drawRect((i+1)*20,(j+1)*20,40,160);//chang fang xing

                p.drawRect((m+1)*20,(n+1)*20,80,40);

                p.drawRect((m+3)*20,(n+3)*20,80,40);

                //p.drawRect();

                //p.drawEllipse(QPoint((i + 1) * 40, (j + 1) * 40), 15, 15);

    }

}

 

鼠标响应：

void Widget::mousePressEvent(QMouseEvent * e)

{

    /*

    setWindowTitle(QString::number(e->x()) +

                   " " +

                   QString::number(e->y()));

                   */

    int x, y;

    if(e->x() >= 20 && e->x() < 620 && e->y() >= 20 && e->y() < 620)

    {

        x = (e->x() - 20) / 40;

        y = (e->y() - 20) / 40;

        if (!a[x][y])

        {

            a[x][y] = player++ % 2 + 1;

        }

        if(isWin(x, y))

        {

            update();

            setEnabled(false);

        }

    }

    update();

}

 

判断输赢：

bool Widget::isWin(int x, int y)

{

    return f1(x, y) || f2(x, y) || f3(x, y) || f4(x ,y);

}

 

判断四个边界：

bool Widget::f1(int x, int y)

{

    int i;

    for (i = 0; i < 5; i++)

    {

        if(y - i >= 0 &&

           y + 4 - i <= 0xF &&

           a[x][y - i] == a[x][y + 1 - i] &&

           a[x][y - i] == a[x][y + 2 - i] &&

           a[x][y - i] == a[x][y + 3 - i] &&

           a[x][y - i] == a[x][y + 4 - i])

           return true;

    }

    return false;

}

bool Widget::f2(int x, int y)

{

    int i;

    for (i = 0; i < 5; i++)

    {

        if(x - i >= 0 &&

           x + 4 - i <= 0xF &&

           a[x - i][y] == a[x + 1 - i][y] &&

           a[x - i][y] == a[x + 2 - i][y] &&

           a[x - i][y] == a[x + 3 - i][y] &&

           a[x - i][y] == a[x + 4 - i][y])

           return true;

    }

    return false;

}

bool Widget::f3(int x, int y)

{

    int i;

    for (i = 0; i < 5; i++)

    {

        if(x - i >= 0 &&

           y - i >= 0 &&

           x + 4 - i <= 0xF &&

           y + 4 - i <= 0xF &&

           a[x - i][y - i] == a[x + 1 - i][y + 1 - i] &&

           a[x - i][y - i] == a[x + 2 - i][y + 2 - i] &&

           a[x - i][y - i] == a[x + 3 - i][y + 3 - i] &&

           a[x - i][y - i] == a[x + 4 - i][y + 4 - i])

           return true;

    }

    return false;

}

bool Widget::f4(int x, int y)

{

    int i;

    for (i = 0; i < 5; i++)

    {

        if(x + i <= 0xF &&

           y - i >= 0 &&

           x - 4 + i >= 0 &&

           y + 4 - i <= 0xF &&

           a[x + i][y - i] == a[x - 1 + i][y + 1 - i] &&

           a[x + i][y - i] == a[x - 2 + i][y + 2 - i] &&

           a[x + i][y - i] == a[x - 3 + i][y + 3 - i] &&

           a[x + i][y - i] == a[x - 4 + i][y + 4 - i])

           return true;

    }

    return false;

}