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发信人: autodotcom (!!!!!), 信区: Linux
标 题: 一个小游戏贪吃蛇的原码。
发信站: 荔园晨风BBS站 (Sun Jun 9 12:18:16 2002), 转信
花了一天时间编了个小游戏，现将原码（兼注释）贴上，想玩的兄弟可以编译后运
行。
性能还可以吧。不要担心,不会死机的。
速度可以将第二十行当三十行的＃define delaytime 1000的1000改为其他数值。
#include<stdio.h>
#include<graphics.h>
#include<bios.h>
#include<ctype.h>
/*****keybrd******/
#define _KEYBRD_READY 0x01
#define _KEYBRD_READ 0x00
#define _KEYBRD_SHIFSTATUS 0x02
#define _end 0x11b /*esc键的扫描码*/
#define goup 0x4800 /*向上键的。。*/
#define godown 0x5000
#define goleft 0x4b00
#define goright 0x4d00
#define f1 0x3b00
#define f2 0x3c00
/****color********/
#define black 0
#define white 15
#define blue 1
#define green 2
/*****struct****/
#define NULL 0
#define LEN sizeof(struct square)
/*****vect*****/
#define up 1 /*蛇头的方向*/
#define down 2
#define left 3
#define right 4
/*****drawcircle**/
#define write 1
#define clear 0
/******snake*****/
#define snakecolor white
#define snakewide 2
#define delaytime 1000
#define dead 0
/*****box********/
#define box_xa 220
#define box_ya 140
#define box_xb 423
#define box_yb 343
/******livebox**************/
#define live_xa 224
#define live_ya 144
#define live_xb 419
#define live_yb 339
struct square
{int x;
int y;
struct square *next;
struct square *pre;
};
/***********构造n个struct的链表********************/
struct square * initsquare(int n)
{
struct square *p1,*p2,*head;
int i;
p1=head=(struct square *)malloc(LEN);
for(i=1;i<n;i++)
{p2=(struct square * )malloc(LEN);
p1->next=p2;
p2->pre=p1;
p1=p2;
}
head->pre=p2;
p2->next=head;
return(head);
}
/***********初始蛇的坐标写入链表*************************/
void initsnake(struct square *head)
{
struct square * p;
int i;
p=head;
for(i=0;i<10;i++)
{p->x=384-5*i;
p->y=334;
p=p->next;
}
for(i=0;i<10;i++)
{ p->x=339+5*i;
p->y=329;
p=p->next;
}
}
/**********划一个bar中间点位（x，y）********************/
void solidsquare(int x,int y,int n)
{
int xa,ya,xb,yb;
xa=x-n;ya=y-n;
xb=x+n;yb=y+n;
bar(xa,ya,xb,yb);
}
/**********划蛇****************************/
void drawsnake(struct square*head,struct square *tail,int how)
{struct square *p1;
int i;
if(how==write)
setcolor(white);
else if(how==clear)
setcolor(black);
p1=head;
do
{solidsquare(p1->x,p1->y,snakewide);
p1=p1->next;
}while(p1!=tail);
}
/**********没键输入时蛇向前走一步，根据蛇头原方向
**************************/
void gonum(int vect,struct square *head)
{struct square*p1;
p1=head->pre;
switch(vect)
{
case right: {p1->x=head->x+5;p1->y=head->y;break;}
case left: {p1->x=head->x-5;p1->y=head->y;break;}
case up: {p1->x=head->x; p1->y=head->y-5;break;}
case down: {p1->x=head->x; p1->y=head->y+5;break;}
}
if((head->x==224)||(head->x==419)||(head->y==144)||(head->y==339))
delay(2*delaytime);
}
/**********gonum后划蛇头擦去蛇尾****************************/
void goact(struct square*head,struct square*tail)
{solidsquare(head->x,head->y,snakewide);
setfillstyle(1,black);
solidsquare(tail->next->x,tail->next->y,snakewide);
setfillstyle(1,white);
}
/*********check是否吃了冬冬******************************/
check(int posi_x,int posi_y,struct square*head)
{if((head->x==posi_x)&&(head->y==posi_y))
return(1);
else return(0);
}
/**********check是否蛇头动到边框or蛇身********************/
int check_dead(struct square*head,struct square *tail)
{struct square*p1,*p2;
p1=head->next;
do{if((head->x==p1->x)&&(head->y==p1->y))
return(dead);
p1=p1->next;
}
while(p1!=tail);
if((head->x<=223)||(head->x>=420)||(head->y<=143)||(head->y>=340))
return(dead);
return(1);
}
main()
{
int gd=DETECT,gmode,maxx,maxy;
int i,k,live=1,ate=1,vect=right,j;
int key,score=0;
int posi_x,posi_y;
struct square *head,*tail,*p;
initgraph(&gd,&gmode,"c:\\tc");
setbkcolor(black);
setlinestyle(0,0,3);
setcolor(green);
rectangle(box_xa,box_ya,box_xb,box_yb); /*划边框*/
tail=head=initsquare(1000);
initsnake(head);
for(k=0;k<10;k++)
tail=tail->next;
drawsnake(head,tail,white);
printf("\n\n\n\n press any key to
begin\n");
printf(" press F1 to pause\n");
printf(" press F2 to restart\n");
getch();
delay(100*delaytime);
while(live==1)
{if(ate) /*产生一个被吃的冬冬*/
{
another:
posi_x=5*(rand()%40)+3+box_xa+1;
posi_y=5*(rand()%40)+3+box_ya+1;
p=head;
do{if((p->x==posi_x)&&(p->y==posi_y)) /*冬冬不能是蛇本身 */
goto another;
p=p->next;
}while(p!=tail);
solidsquare(posi_x,posi_y,snakewide);
ate=0;
}
if(bioskey(_KEYBRD_READY)!=0) /*CHECK是否有键输入，有则输入*/
{key=bioskey(_KEYBRD_READ);
switch(key)
{ case _end: goto ends; /*对不同键设置蛇头方向*/
case goup: {if(vect==right||vect==left)vect=up;break;}
case godown: {if(vect==right||vect==left)vect=down;break;}
case goleft: {if(vect==up||vect==down)vect=left;break;}
case goright: {if(vect==up||vect==down)vect=right;break;}
case f1: /*是否暂停？？？？*/
{while(1){delay(delaytime);
if(bioskey(_KEYBRD_READY)!=0)
key=bioskey(_KEYBRD_READ);
if(key==f2)break; /*是否重新开始？？*/
if(key==_end)goto ends;
}
}
}
}
delay(delaytime*4);
gonum(vect,head);
head=head->pre;
tail=tail->pre;
goact(head,tail);
j=check(posi_x,posi_y,head);
if(j==1)
{ score=score+10;
tail=tail->next->next;
ate=1;
}
live=check_dead(head,tail);
}
printf("\n\n\n\n\n\n\n\n\n\n");
printf(" game over \n");
printf(" you score are %d",score);
while(1)
{
if(bioskey(_KEYBRD_READY)!=0)
key=bioskey(_KEYBRD_READ);
if(key==_end)goto ends;
/* if(key==f2)goto restart; */
}
ends:
{closegraph();
p=head;
do{p=p->next;
free(p->pre);
}
while(p!=head);
abort(0);
}
}
--
※ 来源:·荔园晨风BBS站 bbs.szu.edu.cn·[FROM: 192.168.55.48]
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