使用c++编写一个俄罗斯方块游戏，要求实现好看的界面

要实现一个俄罗斯方块游戏，首先需要确定开发平台。如果想要实现好看的界面，建议使用图形界面库，如Qt或SFML。

下面是使用SFML库来实现俄罗斯方块游戏的示例代码：

#include <SFML/Graphics.hpp>
#include <vector>
#include <iostream>
#include <cstdlib>
#include <ctime>

const int BLOCK_SIZE = 30; //方块的大小
const int BOARD_WIDTH = 10; //游戏面板的宽度
const int BOARD_HEIGHT = 20; //游戏面板的高度

class Block {
public:
    Block(int x, int y, sf::Color color) {
        m_x = x;
        m_y = y;
        m_color = color;
    }
    //获取坐标
    int getX() const {
        return m_x;
    }
    int getY() const {
        return m_y;
    }
    //设置坐标
    void setX(int x) {
        m_x = x;
    }
    void setY(int y) {
        m_y = y;
    }
    //设置颜色
    void setColor(sf::Color color) {
        m_color = color;
    }
    //绘制方块
    void draw(sf::RenderWindow& window) {
        sf::RectangleShape block(sf::Vector2f(BLOCK_SIZE, BLOCK_SIZE));
        block.setPosition(m_x * BLOCK_SIZE, m_y * BLOCK_SIZE);
        block.setFillColor(m_color);
        window.draw(block);
    }
private:
    int m_x, m_y;
    sf::Color m_color;
};

class Board {
public:
    Board() {
        m_blocks.resize(BOARD_WIDTH * BOARD_HEIGHT);
        for (int i = 0; i < BOARD_HEIGHT; i++) {
            for (int j = 0; j < BOARD_WIDTH; j++) {
                m_blocks[i * BOARD_WIDTH + j] = sf::Color::White;
            }
        }
    }
    //获取块的颜色
    sf::Color getBlockColor(int x, int y) const {
        return m_blocks[y * BOARD_WIDTH + x];
    }
    //设置块的颜色
    void setBlockColor(int x, int y, sf::Color color) {
        m_blocks[y * BOARD_WIDTH + x] = color;
    }
    //检查行是否已满
    bool isRowFull(int y) const {
        for (int x = 0; x < BOARD_WIDTH; x++) {
            if (getBlockColor(x, y) == sf::Color::White) {
                return false;
            }
        }
        return true;
    }
    //移除满行
    void removeFullRows() {
        int numRemoved = 0;
        for (int y = BOARD_HEIGHT - 1; y >= 0; y--) {
            if (isRowFull(y)) {
                numRemoved++;
                for (int i = y; i > 0; i--) {
                    for (int j = 0; j < BOARD_WIDTH; j++) {
                        setBlockColor(j, i, getBlockColor(j, i - 1));
                    }
                }
                for (int j = 0; j < BOARD_WIDTH; j++) {
                    setBlockColor(j, 0, sf::Color::White);
                }
                y++;
            }
        }
        m_score += numRemoved * numRemoved * 100;
    }
    //检查方块是否可以移动
    bool canMove(const std::vector<Block>& blocks, int dx, int dy) const {
        for (int i = 0; i < blocks.size(); i++) {
            int x = blocks[i].getX() + dx;
            int y = blocks[i].getY() + dy;
            if (x < 0 || x >= BOARD_WIDTH || y < 0 || y >= BOARD_HEIGHT) {
                return false;
            }
            if (getBlockColor(x, y) != sf::Color::White) {
                return false;
            }
        }
        return true;
    }
    //在游戏面板中添加方块
    void addBlocks(const std::vector<Block>& blocks) {
        for (int i = 0; i < blocks.size(); i++) {
            int x = blocks[i].getX();
            int y = blocks[i].getY();
            setBlockColor(x, y, blocks[i].getColor());
        }
    }
    //获取得分
    int getScore() const {
        return m_score;
    }
    //绘制游戏面板
    void draw(sf::RenderWindow& window) {
        for (int i = 0; i < BOARD_HEIGHT; i++) {
            for (int j = 0; j < BOARD_WIDTH; j++) {
                sf::RectangleShape block(sf::Vector2f(BLOCK_SIZE, BLOCK_SIZE));
                block.setPosition(j * BLOCK_SIZE, i * BLOCK_SIZE);
                block.setFillColor(getBlockColor(j, i));
                window.draw(block);
            }
        }
    }
private:
    std::vector<sf::Color> m_blocks;
    int m_score = 0;
};

class Tetromino {
public:
    Tetromino() {
        //定义所有的方块形状
        m_shapes.push_back({ {0, 0}, {0, 1}, {1, 0}, {1, 1} }); //O
        m_shapes.push_back({ {-1, 0}, {0, 0}, {1, 0}, {2, 0} }); //I
        m_shapes.push_back({ {0, 0}, {1, 0}, {1, 1}, {2, 1} }); //Z
        m_shapes.push_back({ {0, 1}, {1, 1}, {1, 0}, {2, 0} }); //S
        m_shapes.push_back({ {0, 0}, {1, 0}, {2, 0}, {1, 1} }); //T
        m_shapes.push_back({ {0, 0}, {1, 0}, {2, 0}, {3, 0} }); //L
        m_shapes.push_back({ {0, 0}, {1, 0}, {2, 0}, {2, 1} }); //J
        //随机选择一个形状
        std::srand(std::time(nullptr));
        m_currentShape = m_shapes[std::rand() % m_shapes.size()];
        //设置颜色
        m_color = sf::Color::Red;
    }
    //获取方块的颜色
    sf::Color getColor() const {
        return m_color;
    }
    //获取方块坐标
    std::vector<Block> getBlocks(int x, int y) const {
        std::vector<Block> blocks;
        for (int i = 0; i < m_currentShape.size(); i++) {
            blocks.push_back(Block(m_currentShape[i].first + x, m_currentShape[i].second + y, m_color));
        }
        return blocks;
    }
    //旋转方块
    void rotate() {
        std::vector<std::pair<int, int>> newShape;
        for (int i = 0; i < m_currentShape.size(); i++) {
            int x = m_currentShape[i].first;
            int y = m_currentShape[i].second;
            newShape.push_back(std::make_pair(y, -x));
        }
        m_currentShape = newShape;
    }
private:
    std::vector<std::pair<int, int>> m_currentShape;
    std::vector<std::vector<std::pair<int, int>>> m_shapes;
    sf::Color m_color;
};

int main() {
    //创建窗口
    sf::RenderWindow window(sf::VideoMode(BLOCK_SIZE * BOARD_WIDTH, BLOCK_SIZE * BOARD_HEIGHT), "Tetris");
    //创建游戏面板和方块
    Board board;
    Tetromino tetromino;
    std::vector<Block> blocks = tetromino.getBlocks(BOARD_WIDTH / 2 - 2, 0);
    //设置方块下落速度
    sf::Clock clock;
    float dropTime = 0.5f;
    //游戏主循环
    while (window.isOpen()) {
        //处理事件
        sf::Event event;
        while (window.pollEvent(event)) {
            if (event.type == sf::Event::Closed) {
                window.close();
            }
            else if (event.type == sf::Event::KeyPressed) {
                switch (event.key.code) {
                case sf::Keyboard::Left:
                    if (board.canMove(blocks, -1, 0)) {
                        for (int i = 0; i < blocks.size(); i++) {
                            blocks[i].setX(blocks[i].getX() - 1);
                        }
                    }
                    break;
                case sf::Keyboard::Right:
                    if (board.canMove(blocks, 1, 0)) {
                        for (int i = 0; i < blocks.size(); i++) {
                            blocks[i].setX(blocks[i].getX() + 1);
                        }
                    }
                    break;
                case sf::Keyboard::Down:
                    if (board.canMove(blocks, 0, 1)) {
                        for (int i = 0; i < blocks.size(); i++) {
                            blocks[i].setY(blocks[i].getY() + 1);
                        }
                    }
                    break;
                case sf::Keyboard::Up:
                    tetromino.rotate();
                    if (!board.canMove(blocks, 0, 0)) {
                        tetromino.rotate();
                    }
                    break;
                }
            }
        }
        //使方块自动下落
        if (clock.getElapsedTime().asSeconds() > dropTime) {
            if (board.canMove(blocks, 0, 1)) {
                for (int i = 0; i < blocks.size(); i++) {
                    blocks[i].setY(blocks[i].getY() + 1);
                }
            }
            else {
                //如果方块无法下落，则将方块加入到游戏面板中
                board.addBlocks(blocks);
                board.removeFullRows();
                //重新生成方块
                tetromino = Tetromino();
                blocks = tetromino.getBlocks(BOARD_WIDTH / 2 - 2, 0);
                //检查游戏是否结束
                if (!board.canMove(blocks, 0, 0)) {
                    std::cout << "Game over!" << std::endl;
                    window.close();
                }
            }
            clock.restart();
        }
        //绘制游戏界面
        window.clear();
        board.draw(window);
        for (int i = 0; i < blocks.size(); i++) {
            blocks[i].draw(window);
        }
        window.display();
    }
    std::cout << "Score: " << board.getScore() << std::endl;
    return 0;
}

由于SFML库的灵活性，你可以根据自己的需求来自定义游戏的界面和操作方式。