基于C语言实现的贪吃蛇游戏 基于C语言实现的贪吃蛇游戏完整实例代码
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本文以实例的形式讲述了基于C语言实现的贪吃蛇游戏代码，这是一个比较常见的游戏，代码备有比较详细的注释，对于读者理解有一定的帮助。
贪吃蛇完整实现代码如下：
#include <graphics.h>
#include <conio.h>
#include <stdlib.h>
#include <dos.h>
#define NULL 0
#define UP 18432
#define DOWN 20480
#define LEFT 19200
#define RIGHT 19712
#define ESC 283
#define ENTER 7181
struct snake
{int centerx;
int centery;
int newx;
int newy;
struct snake *next;
};
struct snake *head;
int grade=60; /*控制速度的*******/
int a,b; /* 背静遮的 位置*/
void *far1,*far2,*far3,*far4; /* 蛇身指针 背静遮的指针 虫子*/
int size1,size2,size3,size4; /* **全局变量**/
int ch=RIGHT; /**************存按键 开始蛇的方向为RIGHT***********/
int chy=RIGHT;
int flag=0; /*********判断是否退出游戏**************/
int control=4; /***********判断上次方向和下次方向不冲突***/
int nextshow=1; /*******控制下次蛇身是否显示***************/
int scenterx; /***************随即矩形中心坐标***************/
int scentery;
int sx; /*******在a b 未改变前 得到他们的值 保证随机矩形也不在此出现*******/
int sy;
/************************蛇身初始化**************************/
void snakede()
{
struct snake *p1,*p2;
head=p1=p2=(struct snake *)malloc(sizeof(struct snake));
p1->centerx=80;
p1->newx=80;
p1->centery=58;
p1->newy=58;
p1=(struct snake *)malloc(sizeof(struct snake));
p2->next=p1;
p1->centerx=58;
p1->newx=58;
p1->centery=58;
p1->newy=58;
p1->next=NULL;
}
/*******************end*******************/
void welcome() /*************游戏开始界面 ，可以选择 速度**********/
{
int key;
int size;
int x=240;
int y=300;
int f;
void *buf;
setfillstyle(SOLID_FILL,BLUE);
bar(98,100,112,125);
setfillstyle(SOLID_FILL,RED);
bar(98,112,112,114);
setfillstyle(SOLID_FILL,GREEN);
bar(100,100,110,125);
size=imagesize(98,100,112,125);
buf=malloc(size);
getimage(98,100,112,125,buf);
cleardevice();
setfillstyle(SOLID_FILL,BLUE);
bar(240,300,390,325);
outtextxy(193,310,"speed:");
setfillstyle(SOLID_FILL,RED);
bar(240,312,390,314);
setcolor(YELLOW);
outtextxy(240,330,"DOWN");
outtextxy(390,330,"UP");
outtextxy(240,360,"ENTER to start..." );
outtextxy(270,200,"SNAKE");
fei(220,220);
feiyang(280,220);
yang(340,220);
putimage(x,y,buf,COPY_PUT);
setcolor(RED);
rectangle(170,190,410,410);
while(1)
{ if(bioskey(1)) /********8选择速度部分************/
key=bioskey(0);
switch(key)
{
case ENTER:
f=1;
break;
case DOWN:
if(x>=240)
{ putimage(x-=2,y,buf,COPY_PUT);
grade++;
key=0;
break;
}
case UP:
if(x<=375)
{ putimage(x+=2,y,buf,COPY_PUT);
grade--;
key=0;
break;
}
}
if (f==1)
break;
} /********** end ****************/
free(buf);
}
/*************************随即矩形*****************/
/***********当nextshow 为1的时候才调用此函数**********/
void ran()
{ int nx;
int ny;
int show; /**********控制是否显示***********/
int jump=0;
struct snake *p;
p=head;
if(nextshow==1) /***********是否开始随机产生***************/
while(1)
{show=1;
randomize();
nx=random(14);
ny=random(14);
scenterx=nx*22+58;
scentery=ny*22+58;
while(p!=NULL)
{
if(scenterx==p->centerx&&scentery==p->centery||scenterx==sx&&scentery==sy)
{show=0;
jump=1;
break;
}
else
p=p->next;
if(jump==1)
break;
}
if(show==1)
{putimage(scenterx-11,scentery-11,far3,COPY_PUT);
nextshow=0;
break;
}
}
}
/***********过关动画**************/
void donghua()
{ int i;
cleardevice();
setbkcolor(BLACK);
randomize();
while(1)
{for(i=0;i<=5;i++)
{putpixel(random(640),random(80),13);
putpixel(random(640),random(80)+80,2);
putpixel(random(640),random(80)+160,3);
putpixel(random(640),random(80)+240,4);
putpixel(random(640),random(80)+320,1);
putpixel(random(640),random(80)+400,14);
}
setcolor(YELLOW);
settextstyle(0,0,4);
outtextxy(130,200,"Wonderful!!");
setfillstyle(SOLID_FILL,10);
bar(240,398,375,420);
feiyang(300,400);
fei(250,400);
yang(350,400);
if(bioskey(1))
if(bioskey(0)==ESC)
{
flag=1;
break;
}
}
}
/*************************end************************/
/***********************初始化图形系统*********************/
void init()
{int a=DETECT,b;
int i,j;
initgraph(&a,&b,"");
}
/***************************end****************************/
/***画立体边框效果函数******/
void tline(int x1,int y1,int x2,int y2,int white,int black)
{ setcolor(white);
line(x1,y1,x2,y1);
line(x1,y1,x1,y2);
setcolor(black);
line(x2,y1,x2,y2);
line(x1,y2,x2,y2);
}
/****end*********/
/*************飞洋标志**********/
int feiyang(int x,int y)
{int feiyang[18][18]={ {0,0,0,0,0,0,1,1,1,1,1,1,0,1,1,0,0,0},
{0,0,0,0,0,1,1,1,0,0,1,1,1,1,1,0,0,0},
{0,0,0,0,1,1,1,0,0,0,0,0,1,1,1,0,0,0},
{0,0,0,1,1,1,0,0,0,0,0,0,0,1,1,0,0,0},
{0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0,0},
{0,0,1,1,0,0,0,0,0,0,1,1,1,0,0,0,0,0},
{0,0,1,1,0,1,1,1,1,1,1,0,0,0,0,0,0,0},
{0,0,1,1,1,1,1,0,0,1,0,0,1,1,0,0,0,0},
{0,0,1,1,1,0,0,0,0,1,0,1,1,1,0,0,0,0},
{0,0,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0},
{0,0,1,1,0,0,0,1,0,0,1,1,0,0,0,0,0,0},
{0,0,1,1,0,0,0,1,1,0,0,1,1,0,0,1,0,0},
{0,0,1,1,1,0,0,1,1,0,0,1,1,0,0,1,0,0},
{0,0,1,1,1,1,0,1,1,1,1,1,1,0,1,1,0,0},
{0,0,0,1,1,1,0,1,1,1,1,1,0,0,1,0,0,0},
{0,0,0,0,1,1,1,0,0,0,0,0,0,1,1,0,0,0},
{0,0,0,0,0,1,1,1,0,0,0,0,1,1,0,0,0,0},
{0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0}};
int i,j;
for(i=0;i<=17;i++)
for(j=0;j<=17;j++)
{if (feiyang[i][j]==1)
putpixel(j+x,i+y,RED);
}
}
/********"飞"字*************/
int fei(int x,int y)
{int fei[18][18]={{1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0},
{0,1,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,0,1,1,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,1,1,0,1,1,1,0,0,0},
{0,0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0},
{0,0,0,0,0,0,0,0,0,0,0,1,1,0,1,1,0,0},
{0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1},
{0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,1,1},
{0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0}};
int i,j;
for(i=0;i<=17;i++)
for(j=0;j<=17;j++)
{if (fei[i][j]==1)
putpixel(j+x,i+y,BLUE);
}
}
/*********"洋"字**************/
int yang(int x,int y)
{
int yang[18][18]={{0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0},
{1,1,0,0,0,0,1,1,1,0,0,0,1,1,0,0,0,0},
{0,1,1,1,0,0,0,1,1,1,0,1,1,0,0,0,0,0},
{0,0,1,1,0,0,0,0,0,1,1,1,0,0,0,1,0,0},
{0,0,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0},
{0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{1,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{0,1,1,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0},
{0,0,1,1,0,0,0,1,1,1,1,1,1,1,1,0,0,0},
{0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0},
{0,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,1,0},
{0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
{0,0,0,1,1,0,0,0,0,0,1,0,0,0,0,0,0,0},
{1,1,1,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{0,1,1,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0},
{0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0}};
int i,j;
for(i=0;i<=17;i++)
for(j=0;j<=17;j++)
{if (yang[i][j]==1)
putpixel(j+x,i+y,BLUE);
}
}
/******************主场景**********************/
int bort()
{ int a;
setfillstyle(SOLID_FILL,15);
bar(49,49,71,71);
setfillstyle(SOLID_FILL,BLUE);
bar(50,50,70,70);
size1=imagesize(49,49,71,71);
far1=(void *)malloc(size1);
getimage(49,49,71,71,far1);
cleardevice();
setfillstyle(SOLID_FILL,12);
bar(49,49,71,71);
size2=imagesize(49,49,71,71);
far2=(void *)malloc(size2);
getimage(49,49,71,71,far2);
setfillstyle(SOLID_FILL,12);
bar(49,49,71,71);
setfillstyle(SOLID_FILL,GREEN);
bar(50,50,70,70);
size3=imagesize(49,49,71,71);
far3=(void *)malloc(size3);
getimage(49,49,71,71,far3);
cleardevice(); /*取蛇身节点 背景节点 虫子节点end*/
setbkcolor(8);
setfillstyle(SOLID_FILL,GREEN);
bar(21,23,600,450);
tline(21,23,600,450,15,8); /***开始游戏场景边框 立体效果*******/
tline(23,25,598,448,15,8);
tline(45,45,379,379,8,15);
tline(43,43,381,381,8,15);
tline(390,43,580,430,8,15);
tline(392,45,578,428,8,15);
tline(412,65,462,85,15,8);
tline(410,63,464,87,15,8);
tline(410,92,555,390,15,8);
tline(412,94,553,388,15,8);
tline(431,397,540,420,15,8);
tline(429,395,542,422,15,8);
tline(46,386,377,428,8,15);
tline(44,384,379,430,8,15);
setcolor(8);
outtextxy(429,109,"press ENTER ");
outtextxy(429,129,"---to start"); /*键盘控制说明*/
outtextxy(429,169,"press ESC ");
outtextxy(429,189,"---to quiet");
outtextxy(469,249,"UP");
outtextxy(429,289,"LEFT");
outtextxy(465,329,"DOWN");
outtextxy(509,289,"RIGHT");
setcolor(15);
outtextxy(425,105,"press ENTER ");
outtextxy(425,125,"---to start");
outtextxy(425,165,"press ESC ");
outtextxy(425,185,"---to quiet");
outtextxy(465,245,"UP");
outtextxy(425,285,"LEFT");
outtextxy(461,325,"DOWN");
outtextxy(505,285,"RIGHT"); /*******end*************/
setcolor(8);
outtextxy(411,52,"score");
outtextxy(514,52,"left");
setcolor(15);
outtextxy(407,48,"score");
outtextxy(510,48,"left");
size4=imagesize(409,62,465,88); /****分数框放到内存********/
far4=(void *)malloc(size4);
getimage(409,62,465,88,far4);
putimage(500,62,far4,COPY_PUT); /*******输出生命框***********/
setfillstyle(SOLID_FILL,12);
setcolor(RED);
outtextxy(415,70,"0"); /***************输入分数为零**********/
outtextxy(512,70,"20"); /*************显示还要吃 的虫子的数目*********/
bar(46,46,378,378);
feiyang(475,400);
fei(450,400);
yang(500,400);
outtextxy(58,390,"mailto:jiangzhiliang002@tom.com");
outtextxy(58,410,"snake game");
outtextxy(200,410,"made by yefeng");
while(1)
{ if(bioskey(1))
a=bioskey(0);
if(a==ENTER)
break;
}
}
/******************gameover()******************/
void gameover()
{ char *p="GAME OVER";
int cha;
setcolor(YELLOW);
settextstyle(0,0,6);
outtextxy(100,200,p);
while(1)
{if(bioskey(1))
cha=bioskey(0);
if(cha==ESC)
{flag=1;
break;
}
}
}
/***********显示蛇身**********************/
void snakepaint()
{struct snake *p1;
p1=head;
putimage(a-11,b-11,far2,COPY_PUT);
while(p1!=NULL)
{putimage(p1->newx-11,p1->newy-11,far1,COPY_PUT);
p1=p1->next;
}
}
/****************end**********************/
/*********************蛇身刷新变化 游戏关键部分 *******************/
void snakechange()
{struct snake *p1,*p2,*p3,*p4,*p5;
int i,j;
static int n=0;
static int score;
static int left=20;
char sscore[5];
char sleft[1];
p2=p1=head;
while(p1!=NULL)
{ p1=p1->next;
if(p1->next==NULL)
{a=p1->newx;
b=p1->newy; /************记录最后节点的坐标************/
sx=a;
sy=b;
}
p1->newx=p2->centerx;
p1->newy=p2->centery;
p2=p1;
}
p1=head;
while(p1!=NULL)
{p1->centerx=p1->newx;
p1->centery=p1->newy;
p1=p1->next;
}
/********判断按键方向*******/
if(bioskey(1))
{ ch=bioskey(0);
if(ch!=RIGHT&&ch!=LEFT&&ch!=UP&&ch!=DOWN&&ch!=ESC) /********chy为上一次的方向*********/
ch=chy;
}
switch(ch)
{
case LEFT: if(control!=4)
{head->newx=head->newx-22;
head->centerx=head->newx;
control=2;
if(head->newx<47)
gameover();
}
else
{ head->newx=head->newx+22;
head->centerx=head->newx;
control=4;
if(head->newx>377)
gameover();
}
chy=ch;
break;
case DOWN:
if(control!=1)
{ head->newy=head->newy+22;
head->centery=head->newy;
control=3;
if(head->newy>377)
gameover();
}
else
{ head->newy=head->newy-22;
head->centery=head->newy;
control=1;
if(head->newy<47)
gameover();
}
chy=ch;
break;
case RIGHT: if(control!=2)
{ head->newx=head->newx+22;
head->centerx=head->newx;
control=4;
if(head->newx>377)
gameover();
}
else
{ head->newx=head->newx-22;
head->centerx=head->newx;
control=2;
if(head->newx<47)
gameover();
}
chy=ch;
break;
case UP: if(control!=3)
{ head->newy=head->newy-22;
head->centery=head->newy;
control=1;
if(head->newy<47)
gameover();
}
else
{ head->newy=head->newy+22;
head->centery=head->newy;
control=3;
if(head->newy>377)
gameover();
}
chy=ch;
break;
case ESC:
flag=1;
break;
}
/* if 判断是否吃蛇*/
if(flag!=1)
{ if(head->newx==scenterx&&head->newy==scentery)
{ p3=head;
while(p3!=NULL)
{ p4=p3;
p3=p3->next;
}
p3=(struct snake *)malloc(sizeof(struct snake));
p4->next=p3;
p3->centerx=a;
p3->newx=a;
p3->centery=b;
p3->newy=b;
p3->next=NULL;
a=500;
b=500;
putimage(409,62,far4,COPY_PUT); /********** 分数框挡住**************/
putimage(500,62,far4,COPY_PUT); /*********把以前的剩下虫子的框挡住********/
score=(++n)*100;
left--;
itoa(score,sscore,10);
itoa(left,sleft,10);
setcolor(RED);
outtextxy(415,70,sscore);
outtextxy(512,70,sleft);
nextshow=1;
if(left==0) /************判断是否过关**********/
donghua(); /*******如果过关，播放过关动画*********************/
}
p5=head; /*********************判断是否自杀***************************/
p5=p5->next;
p5=p5->next;
p5=p5->next;
p5=p5->next; /****从第五个节点判断是否自杀************/
while(p5!=NULL)
{if(head->newx==p5->centerx&&head->newy==p5->centery)
{ gameover();
break;
}
else
p5=p5->next;
}
}
}
/************snakechange()函数结束*******************/
/*****************************主函数******************************************/
int main()
{ int i;
init(); /**********初始化图形系统**********/
welcome(); /*********8欢迎界面**************/
bort(); /*********主场景***************/
snakede(); /**********连表初始化**********/
while(1)
{ snakechange();
if(flag==1)
break;
snakepaint();
ran();
for(i=0;i<=grade;i++)
delay(3000);
}
free(far1);
free(far2);
free(far3);
free(far4);
closegraph();
return 0;
}
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