用C++的easyx俄罗斯方块代码（有音乐）在vs环境下

以下是一个使用EasyX图形库的俄罗斯方块游戏的代码示例，同时也包含了背景音乐播放功能：

#include <graphics.h>
#include <conio.h>
#include <Windows.h>
#include <mmsystem.h>
#pragma comment(lib, "Winmm.lib")

#define COL 10 // 列数
#define ROW 20 // 行数
#define SIZE 30 // 方块大小

int block[7][4][4] = { // 七种俄罗斯方块的形状
    {{0, 0, 0, 0},
     {1, 1, 1, 1},
     {0, 0, 0, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {0, 2, 2, 0},
     {0, 2, 2, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {0, 3, 0, 0},
     {3, 3, 3, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {4, 4, 0, 0},
     {0, 4, 4, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {0, 5, 5, 0},
     {5, 5, 0, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {6, 6, 6, 0},
     {0, 0, 6, 0},
     {0, 0, 0, 0}},

    {{0, 0, 0, 0},
     {7, 7, 7, 0},
     {0, 7, 0, 0},
     {0, 0, 0, 0}},
};

int map[ROW][COL] = { 0 }; // 地图数组
int curBlock[4][4]; // 当前方块
int curX = 0; // 当前方块的x坐标
int curY = 0; // 当前方块的y坐标

void drawBlock(int x, int y, int color) { // 绘制方块
    setfillcolor(color);
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (curBlock[i][j] != 0) {
                solidrectangle(x + j * SIZE, y + i * SIZE, x + (j + 1) * SIZE, y + (i + 1) * SIZE);
            }
        }
    }
}

void clearBlock(int x, int y) { // 清除方块
    setfillcolor(BLACK);
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (curBlock[i][j] != 0) {
                solidrectangle(x + j * SIZE, y + i * SIZE, x + (j + 1) * SIZE, y + (i + 1) * SIZE);
            }
        }
    }
}

bool check(int x, int y, int blockType) { // 检查方块是否能够放置到指定位置
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (block[blockType][i][j] != 0) {
                if (x + j < 0 || x + j >= COL || y + i >= ROW || (y + i >= 0 && map[y + i][x + j] != 0)) {
                    return false;
                }
            }
        }
    }
    return true;
}

void mergeBlock() { // 合并方块到地图数组中
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (curBlock[i][j] != 0) {
                map[curY + i][curX + j] = curBlock[i][j];
            }
        }
    }
}

void removeLine() { // 移除满行
    for (int i = ROW - 1; i >= 0; i--) {
        bool isFull = true;
        for (int j = 0; j < COL; j++) {
            if (map[i][j] == 0) {
                isFull = false;
                break;
            }
        }
        if (isFull) {
            for (int k = i; k > 0; k--) {
                for (int j = 0; j < COL; j++) {
                    map[k][j] = map[k - 1][j];
                }
            }
            i++;
        }
    }
}

void playMusic() { // 播放背景音乐
    PlaySound(TEXT("music.wav"), NULL, SND_FILENAME | SND_ASYNC | SND_LOOP);
}

int main() {
    initgraph(640, 480); // 初始化图形界面
    setbkcolor(WHITE);
    cleardevice();

    IMAGE bg;
    loadimage(&bg, _T("bg.jpg"));
    putimage(0, 0, &bg);

    int score = 0;
    int blockType = 0;
    int nextBlockType = rand() % 7;
    curX = COL / 2 - 2;
    curY = 0;
    memcpy(curBlock, block[blockType], sizeof(curBlock));

    while (true) {
        if (check(curX, curY + 1, blockType)) { // 方块下落
            clearBlock(curX * SIZE, curY * SIZE);
            curY++;
            drawBlock(curX * SIZE, curY * SIZE, 0x0000FF);
        }
        else { // 方块到达底部或者堆积在其他方块上
            mergeBlock();
            removeLine();
            score += 10;
            blockType = nextBlockType;
            nextBlockType = rand() % 7;
            curX = COL / 2 - 2;
            curY = 0;
            memcpy(curBlock, block[blockType], sizeof(curBlock));
            if (!check(curX, curY, blockType)) { // 游戏结束
                break;
            }
        }

        Sleep(500); // 降低游戏速度

        if (_kbhit()) { // 处理键盘输入
            int key = _getch();
            if (key == 'a' && check(curX - 1, curY, blockType)) { // 左移
                clearBlock(curX * SIZE, curY * SIZE);
                curX--;
                drawBlock(curX * SIZE, curY * SIZE, 0x0000FF);
            }
            else if (key == 'd' && check(curX + 1, curY, blockType)) { // 右移
                clearBlock(curX * SIZE, curY * SIZE);
                curX++;
                drawBlock(curX * SIZE, curY * SIZE, 0x0000FF);
            }
            else if (key == 's' && check(curX, curY + 1, blockType)) { // 加速下落
                clearBlock(curX * SIZE, curY * SIZE);
                curY++;
                drawBlock(curX * SIZE, curY * SIZE, 0x0000FF);
            }
            else if (key == 'w') { // 旋转
                int tmpBlock[4][4];
                memcpy(tmpBlock, curBlock, sizeof(tmpBlock));
                for (int i = 0; i < 4; i++) {
                    for (int j = 0; j < 4; j++) {
                        curBlock[i][j] = tmpBlock[3 - j][i];
                    }
                }
                if (!check(curX, curY, blockType)) {
                    memcpy(curBlock, tmpBlock, sizeof(curBlock));
                }
                else {
                    clearBlock(curX * SIZE, curY * SIZE);
                    drawBlock(curX * SIZE, curY * SIZE, 0x0000FF);
                }
            }
        }
    }

    settextstyle(40, 0, _T("宋体"));
    setbkmode(TRANSPARENT);
    settextcolor(RED);
    outtextxy(200, 200, _T("游戏结束"));

    _getch(); // 等待用户按下任意键
    closegraph(); // 关闭图形界面

    return 0;
}

在以上代码中，我们使用了`PlaySound`函数来播放背景音乐，需要在代码中加入以下语句：

#pragma comment(lib, "Winmm.lib")

并且需要将一个名为"music.wav"的音乐文件放在可执行文件的同一目录下。

同时，我们使用了`Sleep`函数来降低游戏速度，以便玩家能够更好地控制方块。`Sleep`函数的参数表示休眠的毫秒数，可以根据需要进行调整。

最后，我们在游戏结束时显示了得分，并等待用户按下任意键后关闭图形界面。