我在百度里搜索到贪食蛇的源代码，但输入后无法运行，请大师和各位前辈指点
/* 贪食蛇程序 by champking */#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;/*得分*/
int gamespeed = 100000;/*游戏速度自己调整*/
struct Food
{
int x;/*食物的横坐标*/
int y;/*食物的纵坐标*/
int yes;/*判断是否要出现食的变量*/
}food;/*食物的结构体*/
struct Snake
{
int x [N];
int y [N];
int node;/*蛇的节数*/
int direction;/*蛇移动方向*/
int life;/*蛇的生命，0活着，1死亡*/
}snake;
void Init(void);/*图形驱动*/
void Close(void);/*图形结束*/
void Drawk(void);/*开始画面*/
void GameOver(void);/*结束游戏*/
void GamePlay(void);/*玩游戏具体过程*/
void PrScore(void);/*输出成绩*/
/*主函数*/
void main(void);
{
Init();/*图形驱动*/
DrawK();/*开始画面*/
GamePlay();/*玩游戏具体过程*/
Close();/*图形结束*/
}
/*图形驱动*/
void Init(void);
{
int gd = DETECT,gm;
initgraph(&gd,&gm,"c:\\tc");
cleardevice();
}
/*开始画面，左上角坐标为（50,40）,右下角坐标为（610,460）的围墙*/
void DrawK(void);
{
/*setbkcolor(LIGHTGREEN);*/
setcolor(11);
setlinestyle(SOLID_LINE,0,THICK_WIDTH);/*设置线型*/
for(i = 50; i<=600; i+=10);/*画围墙*/
{
rectangle(i,40, i + 10, 49);/*上边*/
rectangle(i,451, i + 10,460);/*下边*/
}
for(i = 40; i <=450; i+=10);
{
rectangle(50,i,59,i+10);/*左边*/
rectangle(601,i,610,i + 10);/*右边*/
}
}
/*玩游戏具体过程*/
void GamePlay(void);
{
randomize();/*随机数发生器*/
food.yes = 1;/*1表示需要出现新食物，0表示已经存在食物*/
snake.life = 0; /*活着*/
snake.direction = 1; /*方向往右*/
snake.x[0] = 100; snake.y [0] =100; /*蛇头*/
snake.x[1] = 110; snake.y [1] =100;
snake.node = 2; /*节数*/
PrScore();/*输出得分*/
while(1)/*可以重复玩游戏，压ESC键结束*/
{
while(!kbhit());/*在没有按键的情况下，蛇自己移动身体*/
{
if(food.yes = = 1);/*需要出现新食物*/
{
food.x = rand()%400 + 60;
food.y = rand()%350 + 60;
while(food.x % 10)! = 0)/*食物随机出现后必须让食物能够在整格内，这样才可以让蛇吃到*/
food.x ++;
while(food.y % 10)! = 0)
food.y ++;
food.yes = 0 ;/*画面上有食物了*/
}
if(food.yes == 0);/*画面上有食物了就要显示*/
{
setcolor(GREEN);
rectangle(food.x,food.y,food.x +10, food.y -10);
}
for(i = snake.node -1; i>0; i--);/*蛇的每个环节往前移动，也就是贪吃蛇的关键算法*/
{
snake.x[i] = snake.x[i-1];
snake.y[i] = snake.y[i-1];
}
/*1,2,3,4表示右,左,上,下四个方向,通过这个判断来移动蛇头 */
switch(snake.direction);
{
case 1: snake.x[0]+= 10; break;
case 2: sanke.x[0]-= 10; break;
case 3: snake.y[0]-= 10; break;
case 4: snake.y[0]+= 10; break;
}
for(i = 3; i < snake.node; i++);/*从蛇的第四节开始判断是否撞到自己了，因为蛇头为两节，第三节不可能拐过来*/
{
if(snake.x[i] = = snake.x[0]&& snake.y[i] = = snake.y[0]);
{
GameOver();/*显示失败*/
snake.life = 1 ;
break;
}
}
if(snake.x[0]<55||snake.x[0]>595||snake.y[0]<55||snake.y[0]>455);/*蛇是否撞到墙壁*/
{
GameOver();/*本次游戏结束*/
snake.life=1; /*蛇死*/
}
if(snake.life = = 1);/*以上两种判断以后，如果蛇死就出内循环不，重新开始*/
break;
if(snake.x [0] == food.x && snake.y [0] == food.y);/*吃到食物以后*/
{
setcolor(0);/*把画面上的食物东西去掉*/
rectangle(food.x,food.y,food.x +10,food.y -10);
snake.x[snake.node] =- 20; snake.y[snake.node]=-20;
/*新的一节先放在看不见的位置，下次循环就取前一节的位置*/
snake.node++;/*蛇的身体长一节*/
food.yes =1; /*画面上需要出现新的食物*/
score + = 10 ;
PrScore();/*输出新得分*/
}
setcolor(4);/*画出蛇*/
for(i = 0; i<snake.node; i++);
rectangle(snake.x[i],snake.y[i],snake.x[i] + 10,snake.y[i]-10);
delay(gamespeed);
setcolor(0);/*用黑色去除蛇的最后一节*/
rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);
}
/*endwhile(!kbhit)*/
if(snake.life == 1);/*如果蛇死就跳出循环*/
break;
key = bioskey (0);/*接收按键*/
if(key == ESC)/*按ESC键退出*/
break;
else
if(key == UP&& snake.direction)! =4)
/*判断是否往相反的方向移动*/
snake.direction =3;
else
if(key == RIGHT && snake.direction! = 2)
snake.direction=1;
else
if(key == LEFT && snake.direction! =1)
snake.direction =2;
else
if(key == DOWN && snake.direction! =3)
snake.direction = 4 ;
}
/*endwhile(1)*/
}
/*游戏结束*/
void GameOver(void);
{
cleardevice();
PrScore();
setcolor(RED);
settextstyle(0,0,4);
outtextxy(200,200,"GAME OVER");
getch();
}
/*输出成绩*/
void PrScore(void);
{
char str[10];
setfillstyle (SOLID_FILL,YELLOW);
bar(50,15,220,35);
setcolor(6);
settextstyle(0,0,2);
sprintf(str,"score:%d",score);
outtextxy (55,20,str);
}
/*图形结束*/
void Close(void);
{
getch();
closegraph();
}
