这是很早以前写的.好像还是有问题,"食物"的出现有可能跟墙壁重叠,懒得改啦
#include
#include
#include
#include
#include
using namespace std;
const int HALL=20;
const int LEVEL=300;
const char T='#';
char hall[HALL][HALL]={' '};//墙壁
bool ifgameover(int,int);
void gameover();
class snake//蛇结构
{
public:
int get_x();
int get_y();
void change(int,int);
void draw(int);
int add_head(int,int);
void delete_tail();
snake *snext;
snake *slast;
private:
int x,y;
}*phead,*ptail; //蛇头蛇尾
int snake::get_x()
{
return x;
}
int snake::get_y()
{
return y;
}
void snake::change(int a,int b)
{
x=a;
y=b;
}
int snake::add_head(int a,int b)
{
if(hall[a][b]=='*')
return -1;
else{
snake *q=new snake;
q->change(a,b);
q->draw(1);
q->slast=NULL;
q->snext=phead;
phead->slast=q;
phead=q;
return 1;}
}
void snake::delete_tail()
{
ptail->draw(2);
snake *p=new snake;
p=ptail->slast;
free(ptail);
ptail=p;
ptail->snext=NULL;
}
void snake::draw(int a)
{
if(a==1)
hall[x][y]='*';
if(a==2)
hall[x][y]=' ';
else
return;
}
class food//食物
{
public:
void getfood();
food();
int getfood_x();
int getfood_y();
private:
int x,y;
};
void food::getfood()
{
srand((unsigned int) time(NULL));
x=rand()%(HALL-1);
y=rand()%(HALL-1);
while(hall[x][y]=='*')
{
x=rand()%(HALL-1);
y=rand()%(HALL-1);
}
hall[x][y]='$';
}
int food::getfood_x()
{
return x;
}
int food::getfood_y()
{
return y;
}
food::food()
{
x=7;
y=7;
}
class start//初始化
{
public:
void draw();//画框框
void draw1();//画蛇
};
void start::draw()
{
system("CLS");
int i,j;
for(i=0;i<=HALL;i++){
for(j=0;j<=HALL;j++)
{
if(i==0||i==HALL||j==0||j==HALL)
cout<<T;
else
cout<<hall[i][j];
}
cout<<endl;
}
}
void start::draw1()
{
snake *pnew=new snake;
phead=pnew;
phead->slast=NULL;
phead->change(5,6);
pnew=(snake *)malloc(sizeof snake);
phead->snext=pnew;
pnew->slast=phead;
pnew->change(5,5);
ptail=pnew;
pnew=(snake *)malloc(sizeof snake);
ptail->snext=pnew;
pnew->slast=ptail;
pnew->change(5,4);
ptail=pnew;
hall[5][6]='*';
hall[5][5]='*';
hall[5][4]='*';
}
class moving
{
public:
void change_point(int,char);
bool over();
char point;
};
void moving::change_point(int n,char a) //n==0没有按键 n==1有按键输入
{
if(n==0)
{
switch(point)
{
case 'w':
if(phead->add_head(phead->get_x()-1,phead->get_y())==1){}
else gameover();
break;
case 's':
if(phead->add_head(phead->get_x()+1,phead->get_y())==1){}
else gameover();
break;
case 'a':
if(phead->add_head(phead->get_x(),phead->get_y()-1)==1){}
else gameover();
break;
case 'd':
if(phead->add_head(phead->get_x(),phead->get_y()+1)==1){}
else gameover();
break;
}
ptail->delete_tail();
}
if(n==1)
{
if(a=='w' && point!='s')
{
if(phead->add_head(phead->get_x()-1,phead->get_y())==1)
{ptail->delete_tail(),point=a;}
else
gameover();
}
else if(a=='s' && point!='w')
{
if(phead->add_head(phead->get_x()+1,phead->get_y())==1){ptail->delete_tail(),point=a;}
else
gameover();
}
else if(a=='a' && point!='d')
{
if(phead->add_head(phead->get_x(),phead->get_y()-1)==1){ptail->delete_tail(),point=a;}
else
gameover();
}
else if(a=='d' && point!='a')
{
if(phead->add_head(phead->get_x(),phead->get_y()+1)==1){ptail->delete_tail(),point=a;}
else
gameover();
}
else
change_point(0,1);
}
if(n==2)
{
if(a=='w' && point!='s')
{
if(ifgameover(phead->get_x()-1,phead->get_y()))
phead->add_head(phead->get_x()-1,phead->get_y());
else
gameover();
}
else if(a=='s' && point!='w')
{
if(ifgameover(phead->get_x()+1,phead->get_y()))
phead->add_head(phead->get_x()+1,phead->get_y());
else
gameover();
}
else if(a=='a' && point!='d')
{
if(ifgameover(phead->get_x(),phead->get_y()-1))
phead->add_head(phead->get_x(),phead->get_y()-1);
else
gameover();
}
else if(a=='d' && point!='a')
{
if(ifgameover(phead->get_x(),phead->get_y()+1))
phead->add_head(phead->get_x(),phead->get_y()+1);
else
gameover();
}
else
{
switch(point)