贪吃蛇代码中我看到下面这处初始化蛇身的函数就懵了，还望高手指教！
这个是命令行界面的程序吧。这个程序本质就是移动光标到合适的坐标位置，打印@，对吧。
让客户满意是我们工作的目标，不断超越客户的期望值来自于我们对这个行业的热爱。我们立志把好的技术通过有效、简单的方式提供给客户，将通过不懈努力成为客户在信息化领域值得信任、有价值的长期合作伙伴，公司提供的服务项目有：主机域名、网络空间、营销软件、网站建设、汉台网站维护、网站推广。
而这里的坐标，你可以想象一下整个屏幕都是字符。这个坐标就是字符所在的位置（第一个字符是(0,0)，向右x增加，向下y增加）。
你要在命令行界面上面做游戏，所以你要先定义你的游戏窗口大小，就是frame_height，frame_width。
gotoxy(x,y)这个函数是移动光标的函数，将光标移动到指定行y和列x。
snake.x[0]=frame_height/2;//将蛇初始化在框的正中央
snake.y[0]=frame_width/2;//同上
所以，snake.x[0]，snake.y[0]的值表示的是打印蛇头的位置。这边我感觉作者x,y自己赋值反了吧。
for(k=1;ksnake.len;k++)//设置蛇身长度及实时变化
{
snake.x[k]=snake.x[k-1]+1;//*
snake.y[k]=snake.y[k-1];//*
gotoxy(snake.x[k], snake.y[k]);
printf("@");
}
循环这边就继续打印蛇身了。x的坐标加+，y的坐标保持不变，然后打印第二个@。再循环打印一次第3个@。
贪吃蛇c语言代码
#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=50000;/*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;/*判断是否要出现食物的变量*/
}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;i0;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: snake.x[0]-=10;break;
case 3: snake.y[0]-=10;break;
case 4: snake.y[0]+=10;break;
}
for(i=3;isnake.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,如果蛇死就跳出内循环，重新开始*/
break;
if(snake.x[0]==food.xsnake.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;isnake.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==UPsnake.direction!=4)
/*判断是否往相反的方向移动*/
snake.direction=3;
else
if(key==RIGHTsnake.direction!=2)
snake.direction=1;
else
if(key==LEFTsnake.direction!=1)
snake.direction=2;
else
if(key==DOWNsnake.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();
}
贪吃蛇程序设计报告
#includegraphics.h
#includestdlib.h
#includedos.h
#define LEFT 0x4b00
#define RIGHT 0x4d00
#define DOWN 0x5000
#define UP 0x4800
#define ESC 0x011b
int i,key;
int score=0;
int gamespeed=32000;
struct Food /*食物的结构体*/
{
int x; /*食物的横坐标*/
int y; /*食物的纵坐标*/
int yes; /*食物是否出现的变量*/
}food;
struct Snack /*蛇的结构体*/
{
int x[N];
int y[N];
int node; /*蛇的节数*/
int direction; /*蛇的方向*/
int life; /*蛇的生命，0活着，1死亡*/
}snake;
void Init(void); /*图形驱动*/
void Close(void); /*关闭游戏函数*/
void DrawK(void); /*画图函数*/
void GameOver(void);/*输出失败函数*/
void GamePlay(); /*游戏控制函数 主要程序*/
void PrScore(void); /*分数输出函数*/
DELAY(char ch)/*调节游戏速度*/
{
if(ch=='3')
{
delay(gamespeed); /*delay是延迟函数*/
delay(gamespeed);
}
else if(ch=='2')
{
delay(gamespeed);
}
}
Menu()/*游戏开始菜单*/
{
char ch;
printf("Please choose the gamespeed:\n");
printf("1-Fast 2-Normal 3-Slow\n");
printf("\nPlease Press The numbers..\n");
do
{ch=getch();}
while(ch!='1'ch!='2'ch!='3');
clrscr();
return(ch);
}
/*主函数*/
void main(void)
{
int ch;
ch=Menu();
Init();
DrawK();
GamePlay(ch);
Close();
}
void Init(void)
{
int gd=DETECT,gm;
initgraph(gd,gm,"c:\\tc");
cleardevice();
}
void DrawK(void)
{
setcolor(11);
setlinestyle(SOLID_LINE,0,THICK_WIDTH);
for(i=50;i=600;i+=10)
{
rectangle(i,40,i+10,49); /*画出上边框*/
rectangle(i,451,i+10,460); /*画出下边框*/
}
for(i=40;i=450;i+=10)
{
rectangle(50,i,59,i+10); /*画出左边框*/
rectangle(601,i,610,i+10); /*画出右边框*/
}
}
void GamePlay(char ch)
{
randomize(); /*随机数发生器*/
food.yes=1; /*1代表要出现食物，0表示以存在食物*/
snake.life=0;
snake.direction=1;
snake.x[0]=100;snake.y[0]=100;
snake.x[1]=110;snake.y[1]=100;
snake.node=2;
PrScore();
while(1) /*可以重复游戏*/
{
while(!kbhit()) /*在没有按键的情况下蛇自己移动*/
{
if(food.yes==1) /*需要食物*/
{
food.x=rand()%400+60;
food.y=rand()%350+60; /*使用rand函数随机产生食物坐标*/
while(food.x%10!=0)
food.x++;
while(food.y%10!=0)
food.y++; /*判断食物是否出现在整格里*/
food.yes=0; /*现在有食物了*/
}
if(food.yes==0) /*有食物了就要显示出来*/
{
setcolor(GREEN);
rectangle(food.x,food.y,food.x+10,food.y-10);
}
for(i=snake.node-1;i0;i--) /*贪吃蛇的移动算法*/
{
snake.x[i]=snake.x[i-1];
snake.y[i]=snake.y[i-1]; /*贪吃蛇的身体移动算法*/
}
switch(snake.direction) /*贪吃蛇的头部移动算法，以此来控制移动*/
{
case 1:snake.x[0]+=10;break;
case 2:snake.x[0]-=10;break;
case 3:snake.y[0]-=10;break;
case 4:snake.y[0]+=10;break;
}
for(i=3;isnake.node;i++) /*判断是否头部与身体相撞*/
{
if(snake.x[i]==snake.x[0]snake.y[i]==snake.y[0])
{
GameOver();
snake.life=1;
break;
}
}
/*下面是判断是否撞到墙壁*/
if(snake.x[0]55||snake.x[0]595||snake.y[0]55||snake.y[0]455)
{
GameOver();
snake.life=1;
}
if(snake.life==1) /*如果死亡就退出循环*/
break;
if(snake.x[0]==food.xsnake.y[0]==food.y) /*判断蛇是否吃到食物*/
{
setcolor(0);
rectangle(food.x,food.y,food.x+10,food.y-10); /*吃的食物后用黑色将食物擦去*/
snake.x[snake.node]=-20;snake.y[snake.node]=-20; /*现把增加的一节放到看不到的地方去*/
snake.node++;
food.yes=1;
score+=10;
PrScore();
}
setcolor(4); /*每次移动后将后面的身体擦去*/
for(i=0;isnake.node;i++)
rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10);
delay(gamespeed);
DELAY(ch);
setcolor(0);
rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);
}
if(snake.life==1)
break;
key=bioskey(0); /*接受按键*/
if(key==ESC)
break;
else
if(key==UPsnake.direction!=4)/*判断是否改变方向*/
snake.direction=3;
else
if(key==RIGHTsnake.direction!=2)
snake.direction=1;
else
if(key==LEFTsnake.direction!=1)
snake.direction=2;
else
if(key==DOWNsnake.direction!=3)
snake.direction=4;
}
}
void GameOver(void)
{
cleardevice();
setcolor(RED);
settextstyle(0,0,4);
outtextxy(200,200,"GAME OVER");
getch();
}
void PrScore(void)
{
char str[10];
setfillstyle(SOLID_FILL,YELLOW);
bar(50,15,220,35);
setcolor(6);
settextstyle(0,0,2);
sprintf(str,"scord:%d",score);
outtextxy(55,20,str);
}
void Close(void)
{
getch();
closegraph();
}
贪吃蛇
#include "graphics.h"
#include "stdio.h"
#define MAX 200
#define MAXX 30
#define MAXY 30
#define UP 18432
#define DOWN 20480
#define LEFT 19200
#define RIGHT 19712
#define ESC 283
#define ENTER 7181
#define PAGEUP 18688
#define PAGEDOWN 20736
#define KEY_U 5749
#define KEY_K 9579
#define CTRL_P 6512
#define TRUE 1
#define FALSE 0
#define GAMEINIT 1
#define GAMESTART 2
#define GAMEHAPPY 3
#define GAMEOVER 4
struct SPlace
{
int x;
int y;
int st;
} place[MAX];
int speed;
int count;
int score;
int control;
int head;
int tear;
int x,y;
int babyx,babyy;
int class;
int eat;
int game;
int gamedelay[]={5000,4000,3000,2000,1000,500,250,100};
int gamedelay2[]={1000,1};
static int hitme=TRUE,hit = TRUE;
void init(void);
void nextstatus(void);
void draw(void);
void init(void)
{
int i;
for(i=0;iMAX;i++)
{
place[i].x = 0;
place[i].y = 0;
place[i].st = FALSE;
}
place[0].st = TRUE;
place[1].st = TRUE;
place[1].x = 1;
speed = 9;
count = 0;
score = 0;
control = 4;
head = 1;
tear = 0;
x = 1;
y = 0;
babyx = rand()%MAXX;
babyy = rand()%MAXY;
eat = FALSE;
game = GAMESTART;
}
void nextstatus(void)
{
int i;
int exit;
int xx,yy;
xx = x;
yy = y;
switch(control)
{
case 1: y--; yy = y-1; break;
case 2: y++; yy = y+1; break;
case 3: x--; xx = x-1; break;
case 4: x++; xx = x+1; break;
}
hit = TRUE;
if ( ((control == 1) || (control ==2 )) ( (y 1) ||(y = MAXY-1)) ||
(((control == 3) || (control == 4)) ((x 1) ||(x = MAXX-1) ) ) )
{
hit = FALSE;
}
if ( (y 0) ||(y = MAXY) ||
(x 0) ||(x = MAXX) )
{
game = GAMEOVER;
control = 0;
return;
}
for (i = 0; i MAX; i++)
{
if ((place[i].st)
(x == place[i].x)
(y == place[i].y) )
{
game = GAMEOVER;
control = 0;
return;
}
if ((place[i].st)
(xx == place[i].x)
(yy == place[i].y) )
{
hit = FALSE;
goto OUT;
}
}
OUT:
if ( (x == babyx) (y == babyy) )
{
eat = TRUE;
count ++;
score += (1+class) * 10;
}
head ++;
if (head = MAX) head = 0;
place[head].x = x;
place[head].y = y;
place[head].st= TRUE;
if (eat == FALSE)
{
place[tear].st = FALSE;
tear ++;
if (tear = MAX) tear = 0;
}
else
{
eat = FALSE;
exit = TRUE;
while(exit)
{
babyx = rand()%MAXX;
babyy = rand()%MAXY;
exit = FALSE;
for( i = 0; i MAX; i++ )
if( (place[i].st)( place[i].x == babyx) (place[i].y == babyy))
exit ++;
}
}
if (head == tear) game = GAMEHAPPY;
}
void draw(void)
{
char temp[50];
int i,j;
for (i = 0; i MAX; i++ )
{
setfillstyle(1,9);
if (place[i].st)
bar(place[i].x*15+1,place[i].y*10+1,place[i].x*15+14,place[i].y*10+9);
}
setfillstyle(1,4);
bar(babyx*15+1,babyy*10+1,babyx*15+14,babyy*10+9);
setcolor(8);
setfillstyle(1,8);
bar(place[head].x*15+1,place[head].y*10+1,place[head].x*15+14,place[head].y*10+9);
/* for( i = 0; i = MAXX; i++ )
line( i*15,0, i*15, 10*MAXY);
for( j = 0; j = MAXY; j++ )
line( 0, j*10, 15*MAXX, j*10);
*/
rectangle(0,0,15*MAXX,10*MAXY);
sprintf(temp,"Count: %d",count);
settextstyle(1,0,2);
setcolor(8);
outtextxy(512,142,temp);
setcolor(11);
outtextxy(510,140,temp);
sprintf(temp,"1P: %d",score);
settextstyle(1,0,2);
setcolor(8);
outtextxy(512,102,temp);
setcolor(12);
outtextxy(510,100,temp);
sprintf(temp,"Class: %d",class);
setcolor(8);
outtextxy(512,182,temp);
setcolor(11);
outtextxy(510,180,temp);
}
main()
{
int pause = 0;
char temp[50];
int d,m;
int key;
int p;
static int keydown = FALSE;
int exit = FALSE;
int stchange = 0;
d = VGA;
m = VGAMED;
initgraph( d, m, "" );
setbkcolor(3);
class = 3;
init();
p = 1;
while(!exit)
{
if (kbhit())
{
key = bioskey(0);
switch(key)
{
case UP: if( (control != 2) !keydown)
control = 1;
keydown = TRUE;
break;
case DOWN: if( (control != 1) !keydown)
control = 2;
keydown = TRUE;
break;
case LEFT: if( (control != 4) !keydown)
control = 3;
keydown = TRUE;
break;
case RIGHT: if( (control != 3) !keydown)
control = 4;
keydown = TRUE;
break;
case ESC: exit = TRUE;break;
case ENTER: init();break;
case PAGEUP: class --; if (class0) class = 0; break;
case PAGEDOWN: class ++;if (class7) class = 7; break;
case KEY_U: if( ( (control ==1) ||(control ==2)) !keydown)
control = 3;
else if(( (control == 3) || (control == 4)) !keydown)
control = 1;
keydown = TRUE;
break;
case KEY_K: if( ( (control ==1) ||(control ==2)) !keydown)
control = 4;
else if(( (control == 3) || (control == 4)) !keydown)
control = 2;
keydown = TRUE;
break;
case CTRL_P:pause = 1 - pause; break;
}
}
stchange ++ ;
putpixel(0,0,0);
if (stchange gamedelay[class] + gamedelay2[hit])
{
stchange = 0;
keydown = FALSE;
p = 1 - p;
setactivepage(p);
cleardevice();
if (!pause)
nextstatus();
else
{
settextstyle(1,0,4);
setcolor(12);
outtextxy(250,100,"PAUSE");
}
draw();
if(game==GAMEOVER)
{
settextstyle(0,0,6);
setcolor(8);
outtextxy(101,101,"GAME OVER");
setcolor(15);
outtextxy(99,99,"GAME OVER");
setcolor(12);
outtextxy(100,100,"GAME OVER");
sprintf(temp,"Last Count: %d",count);
settextstyle(0,0,2);
outtextxy(200,200,temp);
}
if(game==GAMEHAPPY)
{
settextstyle(0,0,6);
setcolor(12);
outtextxy(100,300,"YOU WIN");
sprintf(temp,"Last Count: %d",count);
settextstyle(0,0,2);
outtextxy(200,200,temp);
}
setvisualpage(p);
}
}
closegraph();
}
具体的编译和界面还是要靠你。
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