代码实现贪吃蛇游戏c++

以下是一个简单的贪吃蛇游戏的C++代码实现，使用了Windows API进行图形界面的绘制。

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

using namespace std;

const int Width = 30;   // 地图宽度
const int Height = 20;  // 地图高度

int map[Height][Width] = {0};  // 地图，0表示空，1表示食物，2表示蛇身

struct Snake
{
    int x;
    int y;
    Snake *next;
};

Snake *head, *tail;  // 链表存储蛇身

int dir = 3;  // 初始方向，1表示上，2表示左，3表示下，4表示右

void Init()
{
    // 初始化蛇身
    Snake *p = new Snake;
    p->x = Width / 2;
    p->y = Height / 2;
    p->next = NULL;
    head = tail = p;
    map[p->y][p->x] = 2;

    // 初始化食物
    srand((unsigned)time(NULL));
    int x = rand() % Width;
    int y = rand() % Height;
    while (map[y][x] != 0)
    {
        x = rand() % Width;
        y = rand() % Height;
    }
    map[y][x] = 1;
}

void DrawMap()
{
    HANDLE hOut;
    hOut = GetStdHandle(STD_OUTPUT_HANDLE);
    COORD pos;
    pos.X = 0;
    pos.Y = 0;
    SetConsoleCursorPosition(hOut, pos);
    for (int i = 0; i < Height; i++)
    {
        for (int j = 0; j < Width; j++)
        {
            if (map[i][j] == 0)
                cout << " ";
            else if (map[i][j] == 1)
                cout << "@";
            else
                cout << "#";
        }
        cout << endl;
    }
}

void Move()
{
    int newx, newy;
    newx = head->x;
    newy = head->y;
    if (dir == 1)
        newy--;
    else if (dir == 2)
        newx--;
    else if (dir == 3)
        newy++;
    else if (dir == 4)
        newx++;

    // 判断是否撞墙
    if (newx < 0 || newx >= Width || newy < 0 || newy >= Height)
    {
        cout << "Game Over!" << endl;
        exit(0);
    }

    // 判断是否撞到自己
    if (map[newy][newx] == 2)
    {
        cout << "Game Over!" << endl;
        exit(0);
    }

    // 判断是否吃到食物
    if (map[newy][newx] == 1)
    {
        Snake *p = new Snake;
        p->x = newx;
        p->y = newy;
        p->next = NULL;
        tail->next = p;
        tail = p;
        map[newy][newx] = 2;
        int x = rand() % Width;
        int y = rand() % Height;
        while (map[y][x] != 0)
        {
            x = rand() % Width;
            y = rand() % Height;
        }
        map[y][x] = 1;
    }
    else
    {
        Snake *p = head;
        head = head->next;
        map[p->y][p->x] = 0;
        p->x = newx;
        p->y = newy;
        map[newy][newx] = 2;
        tail->next = p;
        tail = p;
    }
}

void Input()
{
    if (_kbhit())
    {
        int key = _getch();
        if (key == 72 && dir != 3)
            dir = 1;
        else if (key == 75 && dir != 4)
            dir = 2;
        else if (key == 80 && dir != 1)
            dir = 3;
        else if (key == 77 && dir != 2)
            dir = 4;
    }
}

int main()
{
    Init();
    while (true)
    {
        DrawMap();
        Move();
        Input();
        Sleep(200);
    }
    return 0;
}

该代码实现了基本的贪吃蛇游戏功能，但是由于使用了Windows API进行图形界面的绘制，因此只能在Windows系统下运行。如果需要在其他系统下运行，需要修改图形界面的绘制方式。