贪吃蛇代码（C++，使用GPT生成）

#include <iostream>
#include <Windows.h>
#include <conio.h>
#include <time.h>
#include <vector>

using namespace std;

const int WIDTH = 30;
const int HEIGHT = 20;

struct Point {
    int x, y;
};

enum Direction {
    UP, DOWN, LEFT, RIGHT
};

class Snake {
public:
    Snake() {
        body.push_back({ WIDTH / 2, HEIGHT / 2 });
        body.push_back({ WIDTH / 2, HEIGHT / 2 + 1 });
        body.push_back({ WIDTH / 2, HEIGHT / 2 + 2 });
    }

    void move(Direction dir) {
        Point head = body.front();
        switch (dir) {
        case UP:
            head.y--;
            break;
        case DOWN:
            head.y++;
            break;
        case LEFT:
            head.x--;
            break;
        case RIGHT:
            head.x++;
            break;
        }
        body.pop_back();
        body.insert(body.begin(), head);
    }

    bool eat(Point p) {
        if (body.front().x == p.x && body.front().y == p.y) {
            body.push_back(p);
            return true;
        }
        return false;
    }

    bool hit() {
        Point head = body.front();
        for (int i = 1; i < body.size(); i++) {
            if (head.x == body[i].x && head.y == body[i].y) {
                return true;
            }
        }
        return head.x < 0 || head.x >= WIDTH || head.y < 0 || head.y >= HEIGHT;
    }

    vector<Point> getBody() {
        return body;
    }

private:
    vector<Point> body;
};

class Food {
public:
    void spawn(vector<Point> obstacles) {
        srand(time(NULL));
        do {
            pos = { rand() % WIDTH, rand() % HEIGHT };
        } while (conflict(obstacles));
    }

    Point getPos() {
        return pos;
    }

private:
    bool conflict(vector<Point> obstacles) {
        for (int i = 0; i < obstacles.size(); i++) {
            if (pos.x == obstacles[i].x && pos.y == obstacles[i].y) {
                return true;
            }
        }
        return false;
    }

    Point pos;
};

void drawBoard(Snake snake, Food food) {
    system("cls"); // 清空控制台

    vector<Point> obstacles = snake.getBody();
    obstacles.push_back(food.getPos());

    for (int y = 0; y < HEIGHT; y++) {
        for (int x = 0; x < WIDTH; x++) {
            bool isObstacle = false;
            for (int i = 0; i < obstacles.size(); i++) {
                if (x == obstacles[i].x && y == obstacles[i].y) {
                    isObstacle = true;
                    break;
                }
            }
            if (isObstacle) {
                cout << "x";
            }
            else {
                cout << " ";
            }
        }
        cout << endl;
    }
}

int main() {
    Snake snake;
    Food food;
    food.spawn(snake.getBody());

    Direction dir = RIGHT;
    bool gameOver = false;

    while (!gameOver) {
        if (_kbhit()) {
            char input = _getch();
                switch (input) {
                case 'w':
                case 'W':
                    if (dir != DOWN) {
                        dir = UP;

                    }
                    break;
                case 's':
                case 'S':
                    if (dir != UP) {
                        dir = DOWN;
                    }
                    break;
                case 'a':
                case 'A':
                    if (dir != RIGHT) {
                        dir = LEFT;
                    }
                    break;
                case 'd':
                case 'D':
                    if (dir != LEFT) {
                        dir = RIGHT;
                    }
                    break;
                case 'q':
                case 'Q':
                    gameOver = true;
                    break;
                }
        }

        snake.move(dir);

        if (snake.eat(food.getPos())) {
            food.spawn(snake.getBody());
        }

        drawBoard(snake, food);

        if (snake.hit()) {
            cout << "Game Over!" << endl;
            gameOver = true;
        }

        Sleep(100); // 控制游戏速度
    }

    return 0;
}

使用WASD控制方向