贪吃蛇

#include <iostream>
#include <windows.h>
typedef struct Snake
{
    char body[3];
    int x, y;
    Snake* n_node;
    Snake() : body("■"), n_node(nullptr) {}
    Snake(int x1, int y1) : body("■"), x(x1), y(y1), n_node(nullptr)
    {
    }
} SnakeBody;
void SetPosition(short x, short y)
{
    HANDLE winHandle;
    COORD pos = {x, y};
    winHandle = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleCursorPosition(winHandle, pos);
 }
SnakeBody*init(SnakeBody*head)
{
    head = new Snake(0, 0);
    SnakeBody*s_body = head;
    for (int i = 1; i <= 4; i++)
    {
        SnakeBody* cur_n = new Snake(head->x, head->y + i);
        s_body->n_node = cur_n;
        s_body = cur_n;
    }
    return head;
}
void PrintBody(SnakeBody*h)
{
    SnakeBody*n = h;
    while (n)
    {
        SetPosition(n->x, n->y);
        printf("%s", n->body);
        n = n->n_node;
    }
}
SnakeBody* move_down(SnakeBody*h)
{
    SnakeBody*n = h;
    while (n)
    {
        n->y += 1;
        if (n->y == 28)
            n->y = 0;
        n = n->n_node;
    }
    return h;
}
void Game(SnakeBody*head)
{
    int i = 0;
    while(1)
    {
        PrintBody(head);
        SetPosition(0, i);
        printf(" ");
        head = move_down(head);
        i++;
        if (i == 28)
            i = 0;
        Sleep(600);
    }
}
int main(int argc, char **argv)
{
    SnakeBody*h = nullptr;
    h = init(h);
    Game(h);
    return 0;
}