Question

贪吃蛇 C语言 简易程序设计

贪吃蛇软件设计
功能： 实现简易贪吃蛇游戏软件
基本要求：在封闭的围墙内有一条蛇，通过键盘控制蛇的运动方向，若无按键时，按蛇头方向自行移动。围墙内随机出现食物，吃掉食物，蛇的身体长1节，得10分。若蛇在移动过程中，撞到墙壁或身体交叉蛇头撞到自己的身体游戏结束。注意蛇只能以蛇头移动，不能相反，也就是说，若蛇原先向上移动，按向下键无效。
1． 自行设计开始界面，按键或鼠标点击开始游戏。
2． 显示游戏界面，按游戏规则进行游戏
3． 画面实时显示选手得分
4． 结束时给出提示和得分，询问是否再次开始。
相关知识：图形绘制、键盘操作、数组、结构体等
功能扩充：1）当积分达到一定值时，提高速度
2）游戏规则修改为撞到墙壁，减10节，减100分，自身相撞，减5节，减50分，开始蛇蛇身为2节，当蛇身<＝0，游戏结束。
3）当积分达到一定值时，增加怪物，怪物自行无规则移动，当蛇头碰到怪物时，可以在线设置减分、减节或死亡。
4）建立游戏得分排行榜，记录5名得分最高者的得分和姓名
5）加音乐伴奏

总体思路：初始化图形系统
画游戏界面
等待按键开始游戏（可给出提示）
游戏主体程序
游戏结束
游戏主体程序包括：有键按下，按有效方向处理蛇的移动
无键按下，按原方向处理蛇的移动
移动过程中需判断是否死亡、是否吃到食物，再按相关函数处理。

补充说明：要求给出每段程序含义，即在程序中作用，并符合上述题目要求，程序编写结束做调试，确认无误后答案若满意再加悬赏积分。 *百度上的答案我也会搜，希望能在此类题目上做适当修改，求真正高人指导。

Answer 1

#include<graphics.h>
#include<stdlib.h>
#define N 200
#define up 0x4800
#define down 0x5000
#define left 0x4b00
#define right 0x4d00
#define esc 0x011b
#define Y 0x1579
#define n 0x316e
int gamespeed; /* 游戏速度 */
int i,key,color;
int score=0; /* 游戏分数 */
char cai48H[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x04,0x00,0x18,0x00,0x00,0x00,0x0E,0x00,
0x1C,0x00,0x00,0x00,0x1C,0x00,0x1C,0x00,
0x00,0x00,0x20,0x00,0x38,0x00,0x00,0x00,
0x40,0x00,0x78,0x00,0x00,0x01,0x80,0x40,
0x70,0x00,0x00,0x03,0x80,0xC0,0xE0,0x00,
0x00,0x07,0x80,0x80,0xC0,0x00,0x00,0x0E,
0x11,0x81,0xC0,0x00,0x00,0x08,0x61,0x01,
0x80,0x00,0x00,0x00,0x23,0x03,0x04,0x00,
0x00,0x02,0x02,0x00,0x06,0x00,0x00,0x1E,
0x04,0x00,0x0F,0x00,0x00,0x1C,0x1F,0x80,
0x1E,0x00,0x00,0x08,0x3F,0x80,0x3C,0x00,
0x00,0x00,0xFF,0x80,0x38,0x00,0x00,0x03,
0xFF,0x80,0x78,0x00,0x00,0x0F,0xF8,0x00,
0xF0,0x00,0x00,0x7F,0xF0,0x00,0xE0,0x00,
0x03,0xFF,0xFC,0x01,0x80,0x00,0x03,0xC0,
0xFF,0x01,0x03,0x80,0x01,0x01,0xFF,0x00,
0x03,0x80,0x00,0x01,0x3F,0x00,0x07,0x80,
0x00,0x02,0x11,0x00,0x07,0x00,0x00,0x00,
0x10,0x00,0x07,0x00,0x00,0x00,0x10,0x00,
0x0E,0x00,0x00,0x08,0x10,0x00,0x1C,0x00,
0x00,0x30,0x10,0x00,0x18,0x00,0x00,0x70,
0x10,0x00,0x30,0x00,0x01,0xE0,0x10,0x00,
0x70,0x00,0x03,0x80,0x10,0x00,0x60,0x00,
0x00,0x00,0x30,0x00,0xE0,0x00,0x00,0x00,
0xF0,0x01,0xC0,0x00,0x00,0x00,0x70,0x03,
0xC0,0x00,0x00,0x00,0x10,0x07,0x80,0x00,
0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x00,
0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x3C,
0x00,0x00,0x00,0x00,0x00,0x70,0x00,0x00,
0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

char she48H[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,
0x00,0x00,0x00,0x0E,0x00,0x00,0x00,0x00,
0x00,0x0E,0x00,0x00,0x00,0x03,0x00,0x07,
0x00,0x00,0x00,0x02,0x00,0x03,0x00,0x00,
0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x02,
0x00,0x00,0xF8,0x00,0x00,0x02,0x00,0x07,
0x86,0x00,0x00,0x02,0x00,0x18,0x03,0x00,
0x00,0x02,0x00,0x00,0x07,0x80,0x00,0x03,
0xF0,0x00,0x07,0x80,0x00,0x0F,0xFC,0x00,
0x0C,0x00,0x00,0x7E,0x3F,0x80,0x00,0x00,
0x01,0xFE,0x1F,0x80,0x00,0x00,0x01,0xE2,
0x39,0x8C,0x00,0x00,0x00,0xC2,0x30,0x08,
0x00,0x00,0x00,0xC2,0x60,0x08,0x00,0x00,
0x00,0xC3,0xE0,0x08,0x60,0x00,0x00,0x7F,
0xE0,0x01,0xE0,0x00,0x00,0x3F,0x80,0x1F,
0xE0,0x00,0x00,0x1E,0x00,0x1F,0x80,0x00,
0x00,0x1E,0x00,0x1F,0x00,0x00,0x00,0x02,
0x38,0x1E,0x00,0x00,0x00,0x07,0xFC,0x1C,
0x00,0x20,0x00,0x07,0xFC,0x18,0x00,0x20,
0x00,0x1F,0x0C,0x10,0x00,0x20,0x00,0x7C,
0x04,0x10,0x00,0x60,0x01,0xF0,0x00,0x10,
0x00,0x60,0x01,0xE0,0x00,0x08,0x00,0xF0,
0x00,0x80,0x00,0x08,0x03,0xF0,0x00,0x00,
0x00,0x07,0xFF,0xF0,0x00,0x00,0x00,0x07,
0xFF,0xF0,0x00,0x00,0x00,0x03,0xFF,0xE0,
0x00,0x00,0x00,0x01,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
char tun48H[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x0E,0x00,0x00,0x00,0x00,0x00,0x3E,
0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,
0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,
0x03,0xC0,0x00,0x00,0x00,0x00,0x1F,0x00,
0x00,0x00,0x00,0x00,0x7C,0x00,0x00,0x00,
0x00,0x01,0xF8,0x00,0x00,0x00,0x00,0x03,
0xF8,0x00,0x40,0x00,0x00,0x00,0x06,0x07,
0xC0,0x00,0x00,0x00,0x07,0xFF,0xE0,0x00,
0x00,0x00,0x07,0xFF,0xE0,0x00,0x00,0x00,
0x0F,0xFF,0x80,0x00,0x00,0x00,0x7F,0xF8,
0x00,0x00,0x00,0x1F,0xFF,0xF8,0x00,0x00,
0x00,0x1F,0xFF,0xF8,0x00,0x00,0x00,0x1F,
0xFC,0x3C,0x00,0x00,0x00,0x0F,0xF8,0x0E,
0x00,0x00,0x00,0x04,0x70,0x07,0x00,0x00,
0x00,0x00,0x60,0x03,0x80,0x00,0x00,0x00,
0xC0,0x00,0xC0,0x00,0x00,0x01,0x80,0x00,
0x30,0x00,0x00,0x01,0x00,0x3C,0x18,0x00,
0x00,0x02,0x03,0xFF,0x0C,0x00,0x00,0x0C,
0x7F,0xFF,0x8E,0x00,0x00,0x18,0xFF,0xFF,
0xC7,0x80,0x00,0x78,0xFE,0x07,0x87,0xE0,
0x01,0xF0,0x70,0x07,0x03,0xF8,0x07,0xE0,
0x70,0x0E,0x03,0xFE,0x00,0x00,0x38,0x1E,
0x01,0xFE,0x00,0x00,0x3F,0xFE,0x00,0x0C,
0x00,0x00,0x1F,0xFE,0x00,0x00,0x00,0x00,
0x1F,0xFE,0x00,0x00,0x00,0x00,0x0F,0xFE,
0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
char dan48H[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0xFC,0x00,0x00,0x00,0x00,0x07,0xFF,
0x00,0x00,0x00,0x00,0x7F,0xC0,0x80,0x00,
0x00,0x03,0xFF,0x80,0x40,0x00,0x00,0x01,
0xF1,0x80,0x40,0x00,0x00,0x01,0x81,0x80,
0xE0,0x00,0x00,0x00,0x01,0x93,0xF0,0x00,
0x00,0x00,0x01,0xFF,0xF0,0x00,0x00,0x00,
0x21,0xFF,0xF0,0x00,0x00,0x00,0x21,0xF8,
0x00,0x00,0x00,0x00,0x61,0xC0,0x00,0x00,
0x00,0x00,0x61,0x80,0x00,0x00,0x00,0x00,
0xF3,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,
0x00,0x00,0x00,0x01,0xFF,0xC0,0x00,0x00,
0x00,0x03,0xFF,0xF8,0x00,0x00,0x00,0x02,
0x00,0xFC,0x00,0x00,0x00,0x04,0x02,0x1F,
0x00,0x00,0x00,0x08,0x03,0x01,0xC0,0x00,
0x00,0x38,0x03,0x00,0x7C,0x00,0x00,0xF8,
0x07,0xF8,0x3F,0xC0,0x01,0xF0,0x3F,0xFE,
0x3F,0xF8,0x03,0xC1,0xFF,0x0F,0x1F,0xF8,
0x00,0x01,0xE3,0x0F,0x0F,0xF0,0x00,0x01,
0xC3,0x0E,0x00,0x00,0x00,0x01,0x83,0xFC,
0x00,0x00,0x00,0x00,0xC7,0xF8,0x00,0x00,
0x00,0x00,0xFF,0xF8,0x00,0x00,0x00,0x00,
0x7F,0xF0,0x00,0x00,0x00,0x00,0x3F,0x03,
0x80,0x00,0x00,0x00,0x03,0x04,0x00,0x00,
0x00,0x00,0x03,0xF8,0x00,0x00,0x00,0x00,
0x1F,0xF8,0x20,0x00,0x00,0x00,0xFF,0xFF,
0xE0,0x00,0x00,0x07,0xFF,0x81,0xE0,0x00,
0x00,0x07,0xE0,0x00,0xE0,0x00,0x00,0x03,
0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

char zuo16H[]={
0x18,0xC0,0x18,0xC0,0x19,0x80,0x31,0xFE,
0x33,0xFE,0x76,0xC0,0xF0,0xFC,0xB0,0xFC,
0x30,0xC0,0x30,0xC0,0x30,0xFE,0x30,0xFE,
0x30,0xC0,0x30,0xC0,0x30,0xC0,0x00,0x00,
};
char zhe16H[]={
0x03,0x00,0x03,0x0C,0x1F,0xCC,0x1F,0xD8,
0x03,0x30,0xFF,0xFE,0xFF,0xFE,0x03,0x00,
0x0F,0xF8,0x3F,0xF8,0xEC,0x18,0xCF,0xF8,
0x0C,0x18,0x0F,0xF8,0x0F,0xF8,0x00,0x00,
};

char tian16H[]={
0x00,0x00,0x3F,0xFC,0x3F,0xFC,0x31,0x8C,
0x31,0x8C,0x31,0x8C,0x3F,0xFC,0x3F,0xFC,
0x31,0x8C,0x31,0x8C,0x31,0x8C,0x3F,0xFC,
0x3F,0xFC,0x30,0x0C,0x00,0x00,0x00,0x00,
};
char xue16H[]={
0x33,0x18,0x19,0x98,0x08,0xB0,0x7F,0xFC,
0x7F,0xFC,0x60,0x0C,0x1F,0xF0,0x1F,0xF0,
0x00,0xC0,0x7F,0xFC,0x7F,0xFC,0x01,0x80,
0x01,0x80,0x07,0x80,0x03,0x00,0x00,0x00,
};
char ke16H[]={
0x00,0x00,0x0C,0x18,0xFD,0x98,0xF8,0xD8,
0x18,0x58,0xFE,0x18,0xFE,0x98,0x18,0xD8,
0x3C,0x58,0x7E,0x1E,0xDB,0xFE,0x9B,0xF8,
0x18,0x18,0x18,0x18,0x18,0x18,0x00,0x00,
};

struct Food/*定义结构体存储食物的属性*/
{
int x; /* 食物的坐标 */
int y;
int yes; /* 值为0表示屏幕上没有食物，值为1表示屏幕上有食物 */
int color; /* 食物颜色 */
}food;

struct Snake/*定义结构体存储蛇的属性*/
{
int x[N]; /* 每一节蛇的坐标 */
int y[N];
int color[N];/*存储每一节蛇的颜色*/
int node; /* 蛇的节数 */
int direction; /* 蛇移动的方向 */
int life; /* 蛇的生命，如果为1，蛇死，游戏结束 */
}snake;

void init(void)/*图形驱动*/
{
int driver=DETECT,mode=0;
registerbgidriver(EGAVGA_driver);
initgraph(&driver,&mode,"");
}

void drawmat(char *mat,int matsize,int x,int y,int color)/*汉字点阵*/
{
int i,j,k,m;
m=(matsize-1)/8+1;
for(j=0;j<matsize;j++)
for(i=0;i<m;i++)
for(k=0;k<8;k++)
if(mat[j*m+i]&(0x80>>k))
putpixel(x+i*8+k,y+j,color);
}

void showword(void)
{/* 调用汉字点阵输出程序，显示标题和作者信息 */
drawmat(cai48H,48,249,-4,7);
drawmat(she48H,48,329,-4,7);
drawmat(tun48H,48,409,-4,7);
drawmat(dan48H,48,489,-4,7);

drawmat(cai48H,48,250,-5,4);
drawmat(she48H,48,330,-5,4);
drawmat(tun48H,48,410,-5,4);
drawmat(dan48H,48,490,-5,4);
/*作者 田学科*/
drawmat(zuo16H,16,515,465,7);
drawmat(zhe16H,16,530,465,7);

drawmat(tian16H,16,550,465,7);
drawmat(xue16H,16,565,465,7);
drawmat(ke16H,16,580,465,7);
}

void draw(void)/*画出四周的墙*/
{
if(color==15)
color=0;
setcolor(++color);
setlinestyle(SOLID_LINE,0,1);

for(i=30;i<=600;i+=10)
{
rectangle(i,40,i+10,49);
rectangle(i,451,i+10,460);
}
for(i=40;i<450;i+=10)
{
rectangle(30,i,39,i+10);
rectangle(601,i,610,i+10);
}
}

void prscore(void)
{/* 打印游戏分数 */
char str[10];
setfillstyle(SOLID_FILL,YELLOW);
bar(50,10,200,30);
setcolor(6);
settextstyle(0,0,2);
sprintf(str,"score:%d",score);
outtextxy(55,15,str);
}

void gameover(void)
{
cleardevice(); /* 清屏函数 */
for(i=0;i<snake.node;i++)/* 画出蛇死时的位置 */
{
setcolor(snake.color[i]);
rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]+10);
}
prscore(); /* 显示分数 */
draw();
showword();
settextstyle(0,0,6);
setcolor(7);
outtextxy(103,203,"GAME OVER");
setcolor(RED);
outtextxy(100,200,"GAME OVER");
}

void gameplay(void)/* 玩游戏的具体过程 */
{
int flag,flag1;
randomize();
prscore();
gamespeed=50000;
food.yes=0;/* food.yes=0表示屏幕上没有食物 */
snake.life=1;/* snake.life=1表示蛇是活着的 */
snake.direction=4;/* 表示蛇的初始方向为向右 */
snake.node=2; /* 蛇的初始化为两节 */
snake.color[0]=2; /*两节蛇头初始化为绿色*/
snake.color[1]=2;
snake.x[0]=100;snake.y[0]=100;
snake.x[1]=110;snake.y[1]=100;
food.color=random(15)+1;
while(1)
{
while(1)
{
if(food.yes==0) /* 如果蛇活着 */
{
while(1)
{
flag=1;
food.yes=1;
food.x=random(56)*10+40;
food.y=random(40)*10+50;
for(i=0;i<snake.node;i++)
{
if(food.x==snake.x[i]&&food.y==snake.y[i])
flag=0;
}
if(flag) break;
}
}
if(food.yes)
{
setcolor(food.color);
rectangle(food.x,food.y,food.x+10,food.y+10);
}

for(i=snake.node-1;i>0;i--)
{
snake.x[i]=snake.x[i-1];
snake.y[i]=snake.y[i-1];
}

switch(snake.direction)
{
case 1: snake.y[0]-=10;break;
case 2: snake.y[0]+=10;break;
case 3: snake.x[0]-=10;break;
case 4: snake.x[0]+=10;break;
}

for(i=3;i<snake.node;i++)
{
if(snake.x[i]==snake.x[0]&&snake.y[i]==snake.y[0])
{
gameover();
snake.life=0;
break;
}
}

if(snake.x[0]<40||snake.x[0]>590||snake.y[0]<50||snake.y[0]>440)
{
gameover();
snake.life=0;
}

if(snake.life==0)
break;

if(snake.x[0]==food.x&&snake.y[0]==food.y)/*蛇吃掉食物*/
{
setcolor(0);
rectangle(food.x,food.y,food.x+10,food.y+10);
snake.x[snake.node]=-20;
snake.y[snake.node]=-20;
snake.color[snake.node]=food.color;
snake.node++;
food.yes=0;
food.color=random(15)+1;
score+=10;
prscore();
if(score%100==0&&score!=0)
{
for(i=0;i<snake.node;i++)/* 画出蛇 */
{
setcolor(snake.color[i]);
rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]+10);
}
sound(200);
delay(50000);delay(50000);delay(50000);
delay(50000);delay(50000);delay(50000);
nosound();
gamespeed-=5000;
draw();
}
else
{
sound(500);
delay(500);
nosound();
}
}

for(i=0;i<snake.node;i++)/* 画出蛇 */
{
setcolor(snake.color[i]);
rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]+10);
}

delay(gamespeed);
delay(gamespeed);
flag1=1;
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(kbhit()&&flag1==1)/*如果没按有效键就重新开始循环*/
{
flag1=0;
key=bioskey(0);
if(key==esc)
exit(0);
else if(key==up&&snake.direction!=2)
snake.direction=1;
else if(key==down&&snake.direction!=1)
snake.direction=2;
else if(key==left&&snake.direction!=4)
snake.direction=3;
else if(key==right&&snake.direction!=3)
snake.direction=4;
}
}
if(snake.life==0)/*如果蛇死了就退出循环*/
break;
}
}

void main(void)
{
while(1)
{
color=0;
init();
cleardevice();
showword();
draw();
gameplay();
setcolor(15);
settextstyle(0,0,2);
outtextxy(200,400,"CONTINUE(Y/N)?");
while(1)
{
key=bioskey(0);
if(key==Y||key==n||key==esc)
break;
}
if(key==n||key==esc)
break;
}
closegraph();
}

Answer 2

#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;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: snake.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,如果蛇死就跳出内循环，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();
}

Answer 3

楼上的也太复杂了吧，至于代码含义可以到767148236这个人的QQ空间里面查看
#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;/*游戏速度可以自己调整*/
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*/
}food; /*食物结构体*/
struct Snake
{
int x[N];
int y[N];
int node; /*贪吃蛇的节数*/
int direction;/*蛇的移动方向*/
int life;
}snake;
void Init (void);/*图形驱动*/
void Close(void);
void Drawk(void);
void GameOver(void);
void GamePlay(void);
void PrScore(void);/*输出成绩*/
/*主函数*/
void main(void)
{
Init();
Drawk();
GamePlay();
Close();
}
void Init(void)
{
int gd=DETECT,gm;
initgraph(&gd,&gm,"c:\\tc");
cleardevice();
}
void Drawk(void)
{
/*setbkcolor(LIGHTGREEN;*/
setcolor(11);
setlinestyle(SOLID_LINE,0,THICK_WIDTH);
for(i=50;i<=600;i+=10)
{
rectangle(i,40,i+10,49);
rectangle(i,451,i+10,460);
}
for(i=40;i<=450;i+=10)
{
rectangle(50,i,59,i+10);
rectangle(601,i,610,i+10);
}
}
void GamePlay(void)
{
randomize();
food.yes=1;
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)
{
while(!kbhit())
{
if(food.yes==1)
{
food.x=rand()%400+60;
food.y=rand()%350+60;
while(food.x%10!=0)
food.x++;
while(food.y%10!=0)
food.y++;
food.yes=0;
}
if(food.yes==0)
{
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: snake.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++)
{
if(snake.x[i]==snake.x[0]&&snake.y[i]==snake.y[0])
{
GameOver();
snake.life=1;
break;
}
}
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)
break;
if(snake.x[0]==food.x&&snake.y[0]==food.y)
{
setcolor(0);
rectangle(food.x,food.y,food.x+10,food.y-10);
snake.x[snake.node]=-20;
snake.y[snake.node]=-20;
snake.node++;
food.yes=1;
score+=10;
PrScore();
}
setcolor(4);
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);
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);
if(key==Esc)/*按Esc键退出*/
break;
else if(key==UP&&snake.direction!=4)
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;
}
}
/*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);
}
void Close(void)
{
getch();
closegraph();
}