一个C语言写简单贪吃蛇源代码

#include

#include

#include

#include

#include

#include

int grade=5,point=0,life=3;

void set(),menu(),move_head(),move_body(),move(),init_insect(),left(),upon(),right(),down(),init_graph(),food_f(),ahead(),crate();

struct bug

{

int x;

int y;

struct bug *last;

struct bug *next;

};

struct fd

{

int x;

int y;

int judge;

}food={0,0,0};

struct bug *head_f=NULL,*head_l,*p1=NULL,*p2=NULL;

void main()

{

char ch;

initgraph(800,600);

set();

init_insect();

while(1)

{

food_f();

Sleep(grade*10);

setcolor(BLACK);

circle(head_l->x,head_l->y,2);

setcolor(WHITE);

move_body();

if(kbhit())

{

ch=getch();

if(ch==27)

{

ahead();

set();

}

else if(ch==-32)

{

switch(getch())

{

case 72:upon();break;

case 80:down();break;

case 75:left();break;

case 77:right();break;

}

}

else ahead();

}

else

{

ahead();

}

if(head_f->x==food.x&&head_f->y==food.y)

{

Sleep(100);

crate();

food.judge=0;

point=point+(6-grade)*10;

if(food.x<30||food.y<30||food.x>570||food.y>570)

life++;

menu();

}

if(head_f->x<5||head_f->x>595||head_f->y<5||head_f->y>595)

{

Sleep(1000);

life--;

food.judge=0;

init_graph();

init_insect();

menu();

}

for(p1=head_f->next;p1!=NULL;p1=p1->next)

{

if(head_f->x==p1->x&&head_f->y==p1->y)

{

Sleep(1000);

life--;

food.judge=0;

init_graph();

init_insect();

menu();

break;

}

}

if(life==0)

{

outtextxy(280,300,"游戏结束！");

getch();

return;

}

move();

};

}

void init_graph()

{

clearviewport();

setlinestyle(PS_SOLID,1,5);

rectangle(2,2,600,598);

setlinestyle(PS_SOLID,1,1);

}

void set()

{

init_graph();

outtextxy(640,50,"1、开始 / 返回");

outtextxy(640,70,"2、退出");

outtextxy(640,90,"3、难度");

outtextxy(640,110,"4、重新开始");

switch(getch())

{

case '1': menu();setcolor(GREEN);circle(food.x,food.y,2);setcolor(WHITE);return;

case '2': exit(0);break;