easy-x实现五子棋的键盘操作

Question

要求使用easy-x实现五子棋的人人对战，键盘操作，显示光标所在位置，落子情况。

我光标的移动是使用清屏来实现的，但是清屏就会清除以前的落子情况，用来输出光标图片的坐标也在变化，不能通过它的参数输出以前的落子，又不知道会下几步棋，于是我放弃了用其他变量输出落子的想法。翻了easy-x的函数库好像又没有可以清除某个指定图片的函数，于是不知道该怎么做下去了。

想知道如何才能实现键盘控制光标标移动，又不会影响落子情况和已绘制的棋盘。

initgraph(480, 540);
    loadimage(&bkg, _T("board.jpg"));
    loadimage(&cursor, _T("6.png"));
    //初始化
    int num = 0;
    int current_player;                                    //0:黑子  1：白子
    int cursor_x, cursor_y;   //光标位置
    int x, y;
    //重置光标
    cursor_x = 213;
    cursor_y = 213;
    putimage(0, 0, 240, 240, &bkg, 60, 60);
    putimage(0, 240, 240, 240, &bkg, 60, 60);
    putimage(240, 0, 240, 240, &bkg, 60, 60);
    putimage(240, 240, 240, 240, &bkg, 60, 60);
    setlinecolor(BLACK);
    for (x = 15; x < 480; x += 30)
    {
        line(x, 15, x, 465);
        for (y = 15; y < 480; y += 30)
            line(15, y, 465, y);
    }
    setfillcolor(BLACK);
    for (int i = 4 * 30 - 15; i <= 12 * 30 - 15; i += 4 * 30)
        for (int j = 4 * 30 - 15; j <= 12 * 30 - 15; j += 4 * 30)
            fillcircle(i, j, 2.5);
    putimage(cursor_x, cursor_y, 26, 26, &cursor, 0, 0);                          //print cursor
    if (1)
        current_player = 1;
    else
        current_player = 2;
    //start game
    while (1)
    {
        int key = _getch();
        switch (key)
        {
        case 0XE0:
            switch (key = _getch())
            {
            case 'w':
            case 'W':
            case 72:if (cursor_y >= 15)
                cursor_y -= 30; break;
            case 'a':
            case 'A':
            case 75:if (cursor_x >= 15)
                cursor_x -= 30; break;
            case 's':
            case 'S':
            case 80:if (cursor_y <= 452)
                cursor_y += 30; break;
            case 'd':
            case 'D':
            case 77:if (cursor_x <= 452)
                cursor_x += 30; break;
            }
        }
        cleardevice();
        putimage(0, 0, 240, 240, &bkg, 60, 60);
        putimage(0, 240, 240, 240, &bkg, 60, 60);
        putimage(240, 0, 240, 240, &bkg, 60, 60);
        putimage(240, 240, 240, 240, &bkg, 60, 60);
        for (x = 15; x < 480; x += 30)
        {
            line(x, 15, x, 465);
            for (y = 15; y < 480; y += 30)
                line(15, y, 465, y);
        }
        for (int i = 4 * 30 - 15; i <= 12 * 30 - 15; i += 4 * 30)
            for (int j = 4 * 30 - 15; j <= 12 * 30 - 15; j += 4 * 30)
                fillcircle(i, j, 2.5);
        putimage(cursor_x, cursor_y, 26, 26, &cursor, 0, 0);
        draw_piece(num, cursor_x + 13, cursor_y + 13);
        //m = GetMouseMsg();
        //if (m.uMsg == WM_LBUTTONDOWN)
            //x++;
    }
    return 0;
    }
void draw_piece(int num, int xx ,int yy)
{
    if (num == 0)
        setfillcolor(BLACK);
    else if (num == 1)
        setfillcolor(WHITE);
    int ch = _getch();
        if (ch == 32)
            fillcircle(xx, yy, 10);
    num = (num + 1) % 2;
}

Answer 1

https://blog.csdn.net/lie_u/article/details/107950505

#include <graphics.h>
#include <conio.h>
#include<stdio.h>
#include <time.h>

#define NUM_B 225 //棋子数量
#define HL 15 //上下
#define X(x) 162+x50
#define Y(y) 30+y50
#define BXY 15 //横轴/纵轴数量
void board(void);
int get_x(short xx);
int get_y(short yy);
int left_right(int(*arr)[BXY], short x, short y); //左右
int up_down(int(*arr)[BXY], short x, short y); //上下
int lu_rd(int(*arr)[BXY], short x, short y); //左上右下
int ld_ru(int(*arr)[BXY], short x, short y); //左下右上
void win_b(void);
void win_w(void);
void fall_w(void); //落白子
void fall_b(void); //落黑子

int main()
{
int undo_x = 0, undo_y = 0;
int again = 0; //用于胜利后开启下一局的开关
int cut = 0; //用于胜利后棋盘不可下棋的开关
int FLAG[BXY][BXY]; //棋盘，储存棋子，0代表空，1代表白子，2代表黑子
int x, y; //坐标
int i, j, wb; //i,j储存鼠标上一个状态，wb控制下一局开局的棋子颜色（这个感觉有没有都一样，，，写了就不删了）
i = j = wb = 0;
int x1[2] = { -2,-2 }, y1[2] = { -2,-2 }; //储存鼠标前后状态，用于消除十字准星
board(); //创建窗口
fall_b();
/* 储存所有棋子坐标，并且把棋子状态设为0 */
for (y = 0; y < 15; y++)
for (x = 0; x < 15; x++)
FLAG[x][y] = 0;

MOUSEMSG m;        // 定义鼠标消息

while (true)           //游戏无限循环
{
    m = GetMouseMsg();        //获取鼠标信息
    switch (m.uMsg)
    {
    case WM_MOUSEMOVE:        //鼠标移动
        if (cut == 0 && (get_x(m.x) > -1 && get_x(m.x) < 15) && (get_y(m.y) > -1 && get_y(m.y) < 15) && FLAG[get_x(m.x)][get_y(m.y)] < 1)    //十字准星
        {
            // 创建一个矩形区域
            HRGN rgn = CreateRectRgn(162, 30, 862, 730);
            // 将该矩形区域设置为裁剪区
            setcliprgn(rgn);
            // 不再使用 rgn，清理 rgn 占用的系统资源
            DeleteObject(rgn);

            if (i == 0)
            {
                x1[i] = get_x(m.x);
                y1[i] = get_y(m.y);
                i = 1;
                j = 0;
            }
            else if (i == 1)
            {
                x1[i] = get_x(m.x);
                y1[i] = get_y(m.y);
                i = 0;
                j = 1;
            }
            setfillcolor(LIGHTBLUE);
            solidrectangle(X(get_x(m.x)) - 15, Y(get_y(m.y)) - 3, X(get_x(m.x)) + 15, Y(get_y(m.y)) + 3);
            solidrectangle(X(get_x(m.x)) - 3, Y(get_y(m.y)) - 15, X(get_x(m.x)) + 3, Y(get_y(m.y)) + 15);
        }
        break;
    case WM_LBUTTONDOWN:   //鼠标左键点击
        if (cut == 0 && (get_x(m.x) > -1 && get_x(m.x) < 15) && (get_y(m.y) > -1 && get_y(m.y) < 15) && FLAG[get_x(m.x)][get_y(m.y)] < 1)
        {
            // 取消之前设置的裁剪区
            setcliprgn(NULL);

            if (wb == 0)
            {
                setfillcolor(BLACK);
                solidcircle(X(get_x(m.x)), Y(get_y(m.y)), 20);
                undo_x = get_x(m.x);
                undo_y = get_y(m.y);
                fall_w();
                wb = 1;
                FLAG[get_x(m.x)][get_y(m.y)] = 2;

                if (left_right(FLAG, m.x, m.y) > 0 || up_down(FLAG, m.x, m.y) > 0 || lu_rd(FLAG, m.x, m.y) > 0 || ld_ru(FLAG, m.x, m.y) > 0)
                {

                    win_b();
                    again = 1;
                    cut = 1;
                }
            }
            else if (wb == 1)
            {
                setfillcolor(WHITE);
                solidcircle(X(get_x(m.x)), Y(get_y(m.y)), 20);
                undo_x = get_x(m.x);
                undo_y = get_y(m.y);
                fall_b();
                wb = 0;
                FLAG[get_x(m.x)][get_y(m.y)] = 1;
                if (left_right(FLAG, m.x, m.y) > 0 || up_down(FLAG, m.x, m.y) > 0 || lu_rd(FLAG, m.x, m.y) > 0 || ld_ru(FLAG, m.x, m.y) > 0)
                {
                    win_w();
                    again = 1;
                    cut = 1;
                }
            }
        }
        break;
    case WM_RBUTTONUP:               //鼠标右键点击
        if (again == 1)
        {
            for (y = 0; y < 15; y++)
                for (x = 0; x < 15; x++)
                    FLAG[x][y] = 0;
            // 取消之前设置的裁剪区
            setcliprgn(NULL);
            board();
            undo_x = undo_y = 0;
            again = 0;
            cut = 0;
            if (wb == 1)
            {
                wb = 0;
                fall_b();
            }
            else
            {
                wb = 1;
                fall_w();
            }
        }
        else
        {
            if (FLAG[undo_x][undo_y] == 1)
            {
                // 取消之前设置的裁剪区
                setcliprgn(NULL);
                setfillcolor(RGB(209, 186, 116));                              //填充背景颜色
                solidrectangle(X(undo_x) - 20, Y(undo_y) - 20, X(undo_x) + 20, Y(undo_y) + 20);
                line(X(undo_x) - 20, Y(undo_y), X(undo_x) + 20, Y(undo_y));
                line(X(undo_x), Y(undo_y) - 20, X(undo_x), Y(undo_y) + 20);
                /*9个带黑点的落子位置*/
                if (undo_x != 15 && undo_y != 15 && (undo_x + 1) % 4 == 0 && (undo_y + 1) % 4 == 0)
                {
                    setfillcolor(BLACK);
                    fillcircle(X(undo_x), Y(undo_y), 5);
                }
                fall_w();
                FLAG[undo_x][undo_y] = 0;
                wb = 1;
            }
            else if (FLAG[undo_x][undo_y] == 2)
            {
                // 取消之前设置的裁剪区
                setcliprgn(NULL);

                setfillcolor(RGB(209, 186, 116));                              //填充背景颜色
                solidrectangle(X(undo_x) - 20, Y(undo_y) - 20, X(undo_x) + 20, Y(undo_y) + 20);
                line(X(undo_x) - 20, Y(undo_y), X(undo_x) + 20, Y(undo_y));
                line(X(undo_x), Y(undo_y) - 20, X(undo_x), Y(undo_y) + 20);
                /*9个带黑点的落子位置*/
                if (undo_x != 15 && undo_y != 15 && (undo_x + 1) % 4 == 0 && (undo_y + 1) % 4 == 0)
                {
                    setfillcolor(BLACK);
                    fillcircle(X(undo_x), Y(undo_y), 5);
                }
                fall_b();
                FLAG[undo_x][undo_y] = 0;
                wb = 0;
            }
        }
        break;
    }
    if (((get_x(m.x)) != x1[j] || (get_y(m.y) != y1[j])) && FLAG[x1[j]][y1[j]] < 1)
    {
        setfillcolor(RGB(209, 186, 116));                              //填充背景颜色
        solidrectangle(X(x1[j]) - 15, Y(y1[j]) - 15, X(x1[j]) + 15, Y(y1[j]) + 15);
        line(X(x1[j]) - 15, Y(y1[j]), X(x1[j]) + 15, Y(y1[j]));
        line(X(x1[j]), Y(y1[j]) - 15, X(x1[j]), Y(y1[j]) + 15);
        /*9个带黑点的落子位置*/
        if (x1[j] != 15 && y1[j] != 15 && (x1[j] + 1) % 4 == 0 && (y1[j] + 1) % 4 == 0)
        {
            setfillcolor(BLACK);
            fillcircle(X(x1[j]), Y(y1[j]), 5);
        }
    }
}
// 关闭图形窗口
closegraph();

_getch();

return 0;
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}

void board()
{
initgraph(1024, 760); //窗口大小
setbkcolor(RGB(190, 231, 233)); //窗口背景
cleardevice();
setlinecolor(BLACK); //线条颜色
setlinestyle(PS_SOLID | PS_ENDCAP_SQUARE, 2); //棋盘边框线条样式
setfillcolor(RGB(209, 186, 116)); //棋盘背景颜色
fillrectangle(132, 0, 892, 760);
fillrectangle(162, 30, 862, 730); //棋盘大小，棋盘规格15X15
setlinestyle(PS_SOLID | PS_ENDCAP_SQUARE, 2); //棋盘线条样式
for (int i = 80; i <= 730; i += 50) //棋盘横线
line(162, i, 862, i);
for (int i = 212; i <= 862; i += 50) //棋盘竖线
line(i, 30, i, 730);
setfillcolor(BLACK); //圆点填充颜色为黑色
for (int i = 3; i <= 12; i += 4) //绘制9个圆点
{
fillcircle(X(i), Y(3), 5);
fillcircle(X(i), Y(7), 5);
fillcircle(X(i), Y(11), 5);
}
setfillcolor(RGB(190, 237, 199)); //棋盘背景颜色
fillrectangle(20, 310, 115, 425);
settextcolor(BLACK);
settextstyle(25, 0, _T(“Consolas”));
wchar_t s[] = L"请落子";
outtextxy(30, 315, s);

fillrectangle(5, 460, 125, 495);
settextstyle(15, 0, _T("Consolas"));
wchar_t s2[] = L"点击鼠标右键悔棋";
outtextxy(10, 470, s2);

settextstyle(25, 0, _T("Consolas"));
wchar_t s1[] = L"yp_lien";
settextcolor(RGB(214, 213, 183));
outtextxy(930, 730, s1);
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}