帮我用C++编写一个俄罗斯方块小游戏

好的，以下是一个简单的俄罗斯方块小游戏的代码实现，供参考：

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

using namespace std;

const int WIDTH = 12;
const int HEIGHT = 20;

char gameBoard[HEIGHT][WIDTH] = {0};
int currentX = 5, currentY = 0;
int currentShape = 0, currentRotation = 0;
int score = 0;

// 俄罗斯方块的七种形状
const char shapes[7][4][5] = {
    {
        "....",
        ".xx.",
        ".xx.",
        "...."
    },
    {
        "....",
        "..x.",
        ".xxx",
        "...."
    },
    {
        "....",
        ".xx.",
        "..xx",
        "...."
    },
    {
        "....",
        "..x.",
        "..x.",
        ".xx."
    },
    {
        "....",
        "..x.",
        ".xx.",
        ".x.."
    },
    {
        "....",
        ".x..",
        ".xx.",
        "..x."
    },
    {
        "....",
        ".x..",
        ".xxx",
        "...."
    }
};

void initGameBoard()
{
    for (int i = 0; i < HEIGHT; i++) {
        for (int j = 0; j < WIDTH; j++) {
            if (i == HEIGHT - 1 || j == 0 || j == WIDTH - 1) {
                gameBoard[i][j] = '#';
            } else {
                gameBoard[i][j] = ' ';
            }
        }
    }
}

void printGameBoard()
{
    system("cls");
    for (int i = 0; i < HEIGHT; i++) {
        for (int j = 0; j < WIDTH; j++) {
            cout << gameBoard[i][j];
        }
        cout << endl;
    }
    cout << "Score: " << score << endl;
}

void generateNewShape()
{
    srand((unsigned)time(NULL));
    currentShape = rand() % 7;
    currentRotation = rand() % 4;
    currentX = 5;
    currentY = 0;
}

bool canMove(int x, int y, int rotation)
{
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (shapes[currentShape][i][j] != '.') {
                int newX = x + j;
                int newY = y + i;
                if (newX < 1 || newX >= WIDTH - 1 || newY < 0 || newY >= HEIGHT || gameBoard[newY][newX] != ' ') {
                    return false;
                }
            }
        }
    }
    return true;
}

void moveShape(int deltaX, int deltaY, int deltaRotation)
{
    if (canMove(currentX + deltaX, currentY + deltaY, (currentRotation + deltaRotation) % 4)) {
        currentX += deltaX;
        currentY += deltaY;
        currentRotation = (currentRotation + deltaRotation) % 4;
    }
}

void updateGameBoard()
{
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (shapes[currentShape][i][j] != '.') {
                int newX = currentX + j;
                int newY = currentY + i;
                gameBoard[newY][newX] = shapes[currentShape][i][j];
            }
        }
    }
}

bool isLineFull(int line)
{
    for (int i = 1; i < WIDTH - 1; i++) {
        if (gameBoard[line][i] == ' ') {
            return false;
        }
    }
    return true;
}

void removeLine(int line)
{
    for (int i = line; i > 0; i--) {
        for (int j = 1; j < WIDTH - 1; j++) {
            gameBoard[i][j] = gameBoard[i - 1][j];
        }
    }
    score += 10;
}

void checkFullLines()
{
    for (int i = 0; i < HEIGHT - 1; i++) {
        if (isLineFull(i)) {
            removeLine(i);
        }
    }
}

int main()
{
    initGameBoard();
    generateNewShape();
    while (true) {
        printGameBoard();
        updateGameBoard();
        Sleep(500);
        if (kbhit()) {
            char ch = getch();
            switch (ch) {
                case 'a':
                    moveShape(-1, 0, 0);
                    break;
                case 'd':
                    moveShape(1, 0, 0);
                    break;
                case 's':
                    moveShape(0, 1, 0);
                    break;
                case 'q':
                    moveShape(0, 0, -1);
                    break;
                case 'e':
                    moveShape(0, 0, 1);
                    break;
                case 'p':
                    return 0;
                default:
                    break;
            }
        } else {
            if (canMove(currentX, currentY + 1, currentRotation)) {
                currentY++;
            } else {
                checkFullLines();
                generateNewShape();
                if (!canMove(currentX, currentY, currentRotation)) {
                    printGameBoard();
                    cout << "Game over!" << endl;
                    return 0;
                }
            }
        }
    }
    return 0;
}

这个实现比较简单，没有考虑很多细节问题，比如说方块落到底部后不能再旋转等。但是这个代码可以让你初步了解俄罗斯方块游戏的实现方式。