用c语言运行的贪吃蛇

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <windows.h>
#include <time.h>

//引用请注明出处：http://hi.baidu.com/neptune_moon/item/56ac4b0fe783acc891571823

#define MAX__X 23
#define MAX__Y 50
#define MAX_FOOD 50
#define ESC 27
#define SPACE 32

typedef struct Node{
 int x;
 int y;
 struct Node *next;
}Node,*LinkList;

typedef struct{
 LinkList front;
 LinkList rear;
 int length;
}Queue;

Queue snake;

void gotoxy(int x,int y)//坐标定位
{

 COORD loc;
 loc.X  =  y;
 loc.Y  =  x;
 SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), loc);
}

void help_info()//显示帮助信息
{
 gotoxy(8,55);
 puts("按ESC键退出,空格键暂停:");
 gotoxy(10,55);
 puts("上,下,左,右:w,s,a,d");
 gotoxy(12,55);
 puts("蛇越长,速度也会越快:");
 gotoxy(14,55);
 puts("如无法控制蛇,请关闭");
 gotoxy(15,56);
 puts("大写键盘锁定状态:");
}

void game_info()//显示游戏信息
{
 gotoxy(3,60);
 printf("当前蛇长度: %d",snake.length);
 gotoxy(5,60);
 printf("               ");
 gotoxy(5,60);
 printf("离胜利还差: %d",MAX_FOOD-snake.length);
}