贪吃蛇的代码

#define N 200
#include <graphics.h>
#include <stdlib.h>
#include <dos.h>
#define LEFT 0x4b00
#define RIGHT 0x4d00
#define DOWN 0x5000
#define UP 0x4800
#define Esc 0x011b
int i,key;
int score=0;
int gamespeed=50000;
struct Food
{
    int x;
    int y;
    int yes;
}food;
struct Snake
{
int x[N];
int y[N];
int node;
int direction;
int life;
}snake;
void Init(void);
void Close(void);
void Drawk(void);
void GameOver(void);

void GamePlay(void);
void PrScore(void);
void main(void)
{
    Init();
    Drawk();
    GamePlay();
    Close();
}
void Init(void)
{
    int gd=DETECT,gm;
    initgraph(&gd,&gm,"c:\\tc");
    cleardevice();
}
void Drawk(void)
{
   setbkcolor(LIGHTGREEN);
    setlinestyle(SOLID_LINE,0,THICK_WIDTH);
    for(i=50;i<=600;i+=10)
    {
        
        rectangle(i,40,i+10,49);
            rectangle(i,451,i+10,460);
    }
    for(i=40;i<=450;i+=10)
    {
        rectangle(50,i,59,i+10);
        rectangle(601,i,610,i+10);
    }