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

using namespace std;

// 定义游戏区域大小
const int WIDTH = 80;
const int HEIGHT = 20;

// 定义挡板信息
int paddleX = WIDTH / 2 - 5;
const int PADDLE_WIDTH = 10;

// 定义小球信息
int ballX = WIDTH / 2;
int ballY = HEIGHT - 2;
int ballDirX = 1;
int ballDirY = -1;

// 定义砖块信息
bool bricks[HEIGHT / 2][WIDTH / 5] = {false};

// 初始化砖块
void initBricks() {
    for (int i = 0; i < HEIGHT / 2; i++) {
        for (int j = 0; j < WIDTH / 5; j++) {
            bricks[i][j] = true;
        }
    }
}

// 绘制游戏界面
void draw() {
    system("cls");

    // 绘制顶部边界
    for (int i = 0; i < WIDTH + 2; i++) {
        cout << "#";
    }
    cout << endl;

    // 绘制游戏区域
    for (int y = 0; y < HEIGHT; y++) {
        cout << "#";
        for (int x = 0; x < WIDTH; x++) {
            if (x >= paddleX && x < paddleX + PADDLE_WIDTH && y == HEIGHT - 1) {
                cout << "=";
            } else if (x == ballX && y == ballY) {
                cout << "O";
            } else if (y < HEIGHT / 2 && bricks[y][x / 5]) {
                cout << "*";
            } else {
                cout << " ";
            }
        }
        cout << "#" << endl;
    }

    // 绘制底部边界
    for (int i = 0; i < WIDTH + 2; i++) {
        cout << "#";
    }
    cout << endl;
}

// 处理用户输入
void input() {
    if (_kbhit()) {
        char ch = _getch();
        if (ch == 'a' && paddleX > 0) {
            paddleX--;
        } else if (ch == 'd' && paddleX + PADDLE_WIDTH < WIDTH) {
            paddleX++;
        }
    }
}

// 更新游戏逻辑
void logic() {
    ballX += ballDirX;
    ballY += ballDirY;

    // 处理小球撞到左右边界
    if (ballX == 0 || ballX == WIDTH - 1) {
        ballDirX = -ballDirX;
    }

    // 处理小球撞到顶部边界
    if (ballY == 0) {
        ballDirY = -ballDirY;
    }

    // 处理小球撞到挡板
    if (ballY == HEIGHT - 2 && ballX >= paddleX && ballX < paddleX + PADDLE_WIDTH) {
        ballDirY = -ballDirY;
    }

    // 处理小球掉落
    if (ballY == HEIGHT - 1) {
        cout << "Game Over!" << endl;
        exit(0);
    }

    // 处理小球撞到砖块
    if (ballY < HEIGHT / 2 && bricks[ballY][ballX / 5]) {
        bricks[ballY][ballX / 5] = false;
        ballDirY = -ballDirY;
    }
}

int main() {
    srand(time(NULL));
    initBricks();

    while (true) {
        draw();
        input();
        logic();
        Sleep(500);
    }

    return 0;
}