C语言+easyX实现贪吃蛇（背景音乐、暂停功能、调速功能）

#include<stdio.h>
#include<graphics.h>
#include<stdlib.h>
#include<time.h>
#include<conio.h>
#include<math.h>
#include<Windows.h>
#include<mmsystem.h>
#pragma comment(lib,"winmm.lib")
struct Food
{
    int x;
    int y;
    int r;
    bool cunzai;
}food;
struct snake {
    int geshu;
    int fangxiang;
    int 间隔时间;
    POINT zuobiao[500];
}snake;
enum a { left, right, up, down };
void huitu();
void yundong();
void anjian();
void shiwu();
void chengfa();
int main()
{
    mciSendString("open Daylight.mp3 alias music", 0, 0, 0);
    mciSendString("play music", 0, 0, 0);
    initgraph(640, 500);
    //初始化蛇
    snake.fangxiang = right;
    snake.geshu = 3;
    snake.间隔时间 = 30;
    srand((unsigned)time(NULL));
    food.x = rand() % 634;
    food.y = rand() % 494;
    food.r = 6;
    food.cunzai = true;
    for (int i = snake.geshu - 1; i >= 0; i--)
    {
        snake.zuobiao[i].x = i * 10 + 20;
        snake.zuobiao[i].y = 50;
    }
    huitu();
    while (1)
    {
        anjian();
        yundong();
        shiwu();
        chengfa();
        huitu();
        Sleep(snake.间隔时间);
    }
}
void huitu()
{
    BeginBatchDraw();
    //窗口初始化
    setbkcolor(RGB(32,32,32));
    cleardevice();
    //蛇初始化
    outtextxy(10, 10, "按空格暂停");
    outtextxy(10, 30, "按M以修改速度");
    for (int i = snake.geshu - 1; i >= 0; i--)
    {
        srand((unsigned)time(NULL));
        setfillcolor(RGB(rand(), rand() + 300, rand() + 500));
        solidcircle(snake.zuobiao[i].x, snake.zuobiao[i].y, 5);
    }
    if (food.cunzai == 1)
    {
        setfillcolor(RGB(rand() % 256, rand() % 256, rand() % 256));
        solidcircle(food.x, food.y, 6);
        EndBatchDraw();
    }
    if (food.cunzai == 0)
    {
        food.x = rand() % 636;
        food.y = rand() % 496;
        food.r = 6;
        food.cunzai = 1;
        EndBatchDraw();
    }
}
void yundong()
{
    {
        for (int i = 0; i < snake.geshu - 1; i++)
        {
            snake.zuobiao[i].x = snake.zuobiao[i + 1].x;
            snake.zuobiao[i].y = snake.zuobiao[i + 1].y;
        }
        switch (snake.fangxiang)
        {
        case up:
                if (snake.zuobiao[snake.geshu - 1].y - 10 <= 0)
                    snake.zuobiao[snake.geshu - 1].y = 490;
                else
                    snake.zuobiao[snake.geshu - 1].y -= 10;
            break;
        case down:
                if (500 - snake.zuobiao[snake.geshu - 1].y <= 10)
                    snake.zuobiao[snake.geshu - 1].y = 10;
                else
                    snake.zuobiao[snake.geshu - 1].y += 10;
            break;
        case left:
                if (snake.zuobiao[snake.geshu - 1].x - 10 <= 0)
                    snake.zuobiao[snake.geshu - 1].x = 630;
                else
                    snake.zuobiao[snake.geshu - 1].x -= 10;
            break;
        case right:
                if (640 - snake.zuobiao[snake.geshu - 1].x <= 10)
                    snake.zuobiao[snake.geshu - 1].x = 10;
                else
                    snake.zuobiao[snake.geshu - 1].x += 10;
            break;
        }
        return;
    }
}
void anjian()
{
    if (_kbhit())
    {
        switch (_getch())
        {
        case 'w':
        case 'W':
            if (snake.fangxiang != down)
                snake.fangxiang = up;
            break;
        case 's':
        case 'S':
            if (snake.fangxiang != up)
                snake.fangxiang = down;
            break;
        case 'a':
        case 'A':
            if (snake.fangxiang != right)
            {
                snake.fangxiang = left;
            }
            break;
        case 'd':
        case 'D':
            if (snake.fangxiang != left)
                snake.fangxiang = right;
            break;
        case ' ':
            mciSendString((LPCTSTR)"pause music", 0, 0, 0);
            while (_getch() != ' ');
            mciSendString((LPCTSTR)"resume music", 0, 0, 0);
            break;
        case 'm':
        case 'M':
            char B[1000];
            sprintf(B, "请输入要调节为的运行间隔时间（要求间隔时间大于0），目前间隔时间为：%d", snake.间隔时间);
            int a=0;
            int if_continue = 0;
            outtextxy(50, 150, B);
            do {
                if_continue = scanf("%d", &a);
                if (!(a > 0)||if_continue!=1) {
                    outtextxy(50, 200, "输入有误，请重新输入");
                    while (getchar() != '\n');
                }
            } while (!(a > 0)||if_continue!=1);
            while (getchar() != '\n');
            snake.间隔时间 = a;
        }
    }
}
void shiwu()
{
    if (food.cunzai == 1 && sqrt(pow(snake.zuobiao[snake.geshu - 1].x - food.x, 2) + pow(snake.zuobiao[snake.geshu - 1].y - food.y, 2)) <= 11)
    {
        snake.geshu++;
        int _x = snake.zuobiao[0].x;
        int _y = snake.zuobiao[0].y;
        for (int i = snake.geshu - 1; i > 0; i--)
        {
            snake.zuobiao[i].x = snake.zuobiao[i - 1].x;
            snake.zuobiao[i].y = snake.zuobiao[i - 1].y;
        }
        snake.zuobiao[0].x = _x;
        snake.zuobiao[0].y = _y;
        food.cunzai = 0;
    }
}
void chengfa()
{
    for (int i = 0; i < snake.geshu - 1; i++)
    {
        if (sqrt(pow(snake.zuobiao[snake.geshu - 1].x - snake.zuobiao[i].x, 2) + pow(snake.zuobiao[snake.geshu - 1].y - snake.zuobiao[i].y, 2)) < 10)
        {
            settextstyle(30, 15, (LPCTSTR)"楷体");
            char A[100];
            sprintf(A, "得分为：%d", snake.geshu - 3);
            outtextxy(180, 150,(LPCTSTR)A);
            outtextxy(180, 240,"游戏结束，按ESC退出");
            while (_getch() != 27);
            exit(1);
        }
    }
}

大一上学期写的，命名不规范，存在bug，现在修复了bug，增加了了背景音乐功能，暂停功能，游戏中调速功能