#include<windows.h>

#include<time.h>

#include<stdlib.h>

#include<conio.h>

#define N 21

#include<iostream>

using namespace std;

void gotoxy(int x,int y)//位置函数

{

COORD pos;

pos.X=*x;

pos.Y=y;

SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);

}

void color(int a)//颜色函数

{

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),a);

}

void init(int apple[])//初始化函数（初始化围墙、显示信息、苹果）

{

int i,j;//初始化围墙

int wall[N+][N+]={{}};

for(i=;i<=N;i++)

{

for(j=;j<=N;j++)

wall[i][j]=;

}

color();

for(i=;i<N+;i++)

{

for(j=;j<N+;j++)

{

if(wall[i][j])

cout<<"■";

else cout<<"□" ;

}

cout<<endl;

}

gotoxy(N+,);//显示信息

color();

cout<<"按 W S A D 移动方向"<<endl;

gotoxy(N+,);

color();

cout<<"按任意键暂停"<<endl;

gotoxy(N+,);

color();

cout<<"得分："<<endl;

apple[]=rand()%N+;//苹果

apple[]=rand()%N+;

gotoxy(apple[],apple[]);

color();

cout<<"●"<<endl;

}

int main()

{

int i,j;

int** snake=NULL;

int apple[];

int score=;

int tail[];

int len=;

char ch='p';

srand((unsigned)time(NULL));

init(apple);

snake=(int**)realloc(snake,sizeof(int*)*len);

for(i=;i<len;i++)

snake[i]=(int*)malloc(sizeof(int)*);

for(i=;i<len;i++)

{

snake[i][]=N/;

snake[i][]=N/+i;

gotoxy(snake[i][],snake[i][]);

color();

cout<<"★"<<endl;

}

while()//进入消息循环

{

tail[]=snake[len-][];

tail[]=snake[len-][];

gotoxy(tail[],tail[]);

color();

cout<<"■"<<endl;

for(i=len-;i>;i--)

{

snake[i][]=snake[i-][];

snake[i][]=snake[i-][];

gotoxy(snake[i][],snake[i][]);

color();

cout<<"★"<<endl;

}

if(kbhit())

{

gotoxy(,N+);

ch=getche();

}

switch(ch)

{

case 'w':snake[][]--;break;

case 's':snake[][]++;break;

case 'a':snake[][]--;break;

case 'd':snake[][]++;break;

default: break;

}

gotoxy(snake[][],snake[][]);

color();

cout<<"★"<<endl;

Sleep(abs(-0.5*score));

if(snake[][]==apple[]&&snake[][]==apple[])//吃掉苹果后蛇分数加1，蛇长加1

{

score++;

len++;

snake=(int**)realloc(snake,sizeof(int*)*len);

snake[len-]=(int*)malloc(sizeof(int)*);

apple[]=rand()%N+;

apple[]=rand()%N+;

gotoxy(apple[],apple[]);

color();

cout<<"●"<<endl;

gotoxy(N+,);

color();

cout<<score<<endl;

}

if(snake[][]==||snake[][]==N||snake[][]==||snake[][]==N)//撞到围墙后失败

{

gotoxy(N/,N/);

color();

cout<<"失败！！！"<<endl;

for(i=;i<len;i++)

free(snake[i]);

Sleep(INFINITE);

exit();

}

}

return ;

}