帮我用c++写一个俄罗斯方块的程序

俄罗斯方块是一款经典的游戏，使用C++编写一个俄罗斯方块的程序需要以下几个步骤：

1. 定义方块的形状和颜色，可以使用二维数组来表示方块的形状，使用颜色常量来表示方块的颜色。

2. 定义游戏区域，可以使用二维数组来表示游戏区域，每个格子可以用一个数字来表示是否有方块。

3. 定义方块的移动和旋转函数，可以使用键盘事件来控制方块的移动和旋转。

4. 定义方块的下落函数，可以使用定时器来控制方块的下落速度。

5. 定义消除行的函数，当一行被填满时，将该行消除，并将上面的方块下移一行。

6. 定义游戏结束的函数，当方块无法下落时，游戏结束。

下面是一个简单的C++俄罗斯方块程序的代码示例：

#include <iostream>
#include <conio.h>
#include <windows.h>

using namespace std;

const int WIDTH = 10;
const int HEIGHT = 20;
const int BLOCK_SIZE = 20;
const int COLORS[] = {0x000000, 0xFF0000, 0x00FF00, 0x0000FF, 0xFFFF00, 0xFF00FF, 0x00FFFF};

int board[HEIGHT][WIDTH] = {0};
int shapes[7][4][4] = {
    {{0,0,0,0},
     {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},
     {0,3,3,0},
     {3,3,0,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,4,4,0},
     {0,0,4,4},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,5,0,0},
     {5,5,5,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,6,0,0},
     {0,6,6,0},
     {0,0,6,0}},
    {{0,0,0,0},
     {0,7,0,0},
     {0,7,7,7},
     {0,0,0,0}}
};

struct Point {
    int x, y;
};

void drawBlock(int x, int y, int color) {
    HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hConsole, color);
    for (int i = 0; i < BLOCK_SIZE; i++) {
        for (int j = 0; j < BLOCK_SIZE; j++) {
            cout << " ";
        }
        cout << endl;
    }
    SetConsoleTextAttribute(hConsole, 0x0007);
}

void drawBoard() {
    for (int i = 0; i < HEIGHT; i++) {
        for (int j = 0; j < WIDTH; j++) {
            if (board[i][j] != 0) {
                drawBlock(j * BLOCK_SIZE, i * BLOCK_SIZE, COLORS[board[i][j]]);
            }
        }
    }
}

bool checkCollision(int shape[4][4], int x, int y) {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (shape[i][j] != 0) {
                int px = x + j;
                int py = y + i;
                if (px < 0 || px >= WIDTH || py >= HEIGHT) {
                    return true;
                }
                if (py >= 0 && board[py][px] != 0) {
                    return true;
                }
            }
        }
    }
    return false;
}

void placeShape(int shape[4][4], int x, int y, int color) {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (shape[i][j] != 0) {
                int px = x + j;
                int py = y + i;
                board[py][px] = color;
            }
        }
    }
}

void removeShape(int shape[4][4], int x, int y) {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (shape[i][j] != 0) {
                int px = x + j;
                int py = y + i;
                board[py][px] = 0;
            }
        }
    }
}

void rotateShape(int shape[4][4]) {
    int temp[4][4];
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            temp[i][j] = shape[i][j];
        }
    }
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            shape[i][j] = temp[3-j][i];
        }
    }
}

void clearLines() {
    int lines = 0;
    for (int i = HEIGHT-1; i >= 0; i--) {
        bool full = true;
        for (int j = 0; j < WIDTH; j++) {
            if (board[i][j] == 0) {
                full = false;
                break;
            }
        }
        if (full) {
            lines++;
            for (int k = i; k > 0; k--) {
                for (int j = 0; j < WIDTH; j++) {
                    board[k][j] = board[k-1][j];
                }
            }
            for (int j = 0; j < WIDTH; j++) {
                board[0][j] = 0;
            }
            i++;
        }
    }
}

bool gameOver() {
    for (int j = 0; j < WIDTH; j++) {
        if (board[0][j] != 0) {
            return true;
        }
    }
    return false;
}

int main() {
    int shapeIndex = rand() % 7;
    int shape[4][4];
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            shape[i][j] = shapes[shapeIndex][i][j];
        }
    }
    Point pos = {WIDTH/2-2, 0};
    int color = shapeIndex + 1;
    bool running = true;
    while (running) {
        if (kbhit()) {
            char key = getch();
            if (key == 'a' && !checkCollision(shape, pos.x-1, pos.y)) {
                pos.x--;
            }
            if (key == 'd' && !checkCollision(shape, pos.x+1, pos.y)) {
                pos.x++;
            }
            if (key == 's' && !checkCollision(shape, pos.x, pos.y+1)) {
                pos.y++;
            }
            if (key == 'w') {
                int temp[4][4];
                for (int i = 0; i < 4; i++) {
                    for (int j = 0; j < 4; j++) {
                        temp[i][j] = shape[i][j];
                    }
                }
                rotateShape(temp);
                if (!checkCollision(temp, pos.x, pos.y)) {
                    for (int i = 0; i < 4; i++) {
                        for (int j = 0; j < 4; j++) {
                            shape[i][j] = temp[i][j];
                        }
                    }
                }
            }
            if (key == 'q') {
                running = false;
            }
        }
        if (checkCollision(shape, pos.x, pos.y+1)) {
            placeShape(shape, pos.x, pos.y, color);
            clearLines();
            if (gameOver()) {
                running = false;
            }
            shapeIndex = rand() % 7;
            for (int i = 0; i < 4; i++) {
                for (int j = 0; j < 4; j++) {
                    shape[i][j] = shapes[shapeIndex][i][j];
                }
            }