这是我实际面试中，遇到的一个题目，编写一个坦克大战游戏。一开始感觉懵，后来代码写写就好了。
#include<iostream>
#include<stdlib.h>
#include<graphics.h>
#include<windows.h>
#include<conio.h>
#include<time.h>
#pragma comment(lib,"winmm.lib")
using namespace std;
int xx[50][50];
void refresh()
{
int a,b;
for(a=0;a<=49;a++)
for(b=0;b<=49;b++)
xx[a][b]=0;
}
void graph()
{
int a,b;
for(a=0;a<=49;a++)
for(b=0;b<=49;b++)
{
if(xx[a][b]!=0)
{
setfillcolor(WHITE);
setlinecolor(WHITE);
fillrectangle(a*10,b*10,a*10+8,b*10+8);
}
if(xx[a][b]==0)
{
setfillcolor(BLACK);
setlinecolor(BLACK);
fillrectangle(a*10,b*10,a*10+8,b*10+8);
}
}
}
int kb(void)
{
char a[2],shang[3],xia[3],zuo[3],you[3];
while(1)
{
strcpy(shang,"郒");
strcpy(xia,"郟");
strcpy(zuo,"郖");
strcpy(you,"郙");
a[0]=getch();
if(a[0]==shang[0]||a[0]==zuo[0]||a[0]==xia[0]||a[0]==you[0])
{
a[1]=getch();
if(a[1]==shang[1])
return 1;
if(a[1]==zuo[1])
return 3;
if(a[1]==xia[1])
return 2;
if(a[1]==you[1])
return 4;
}
if(a[0]==13)
return 5;
}
}
class tank;
class bullet;
class tank
{
private:
int x,y,v,direction,t,body[4][9];
public:
tank(int T);
void move(bullet *&p,tank *b[],int tt);
void fire(bullet *&p);
void die(tank *&p);
void tank1();
void viewin();
void viewcl();
void me(int x,int y,tank *&p);
void smart(tank *p,bullet *b,bullet *&p1,tank *p2[]);
int gett();
int getx();
int gety();
};
class bullet
{
private:
int x,y,v,direction,t;
public:
bullet(int X,int Y,int T,int Direction,int V);
void move(bullet *&p,tank *p1[]);
void die(bullet *&p,tank *p1[]);
void viewin();
void viewcl();
int getx();
int gety();
};
int bullet::getx()
{
return x;
}
int bullet::gety()
{
return y;
}
void tank::fire(bullet *&p)
{
if(p==NULL)
{
PlaySound ("子弹发射声.wav",NULL,SND_FILENAME | SND_ASYNC);
p=new bullet(x,y,t+3,direction,1);
}
}
int tank::gett()
{
return t;
}
void bullet::viewin()
{
if(xx[x][y]==0)
xx[x][y]=t;
}
void bullet::viewcl()
{
if(!(xx[x][y]!=0&&xx[x][y]!=t))
xx[x][y]=0;
}
bullet::bullet(int X,int Y,int T,int Direction,int V)
{
t=T;
x=X;
y=Y;
direction=Direction;
v=V;
viewin();
}
void bullet::move(bullet *&p,tank *p1[])
{
switch(direction)
{
case 1:viewcl();y-=v;break;
case 2:viewcl();y+=v;break;
case 3:viewcl();x-=v;break;
case 4:viewcl();x+=v;break;
}
die(p,p1);
}
void bullet::die(bullet *&p,tank *p1[])
{
int a;
if(x<=0||y<=0||x>=49||y>=49)
{
bullet *q=p;
p=NULL;
viewcl();
delete q;
return ;
}
int key=0,tx,ty,tt;
for(a=0;a<2;a++)
{
if(t==4)
if(a==0)
continue;
if(t!=4)
if(a!=0)
continue;
if(p1[a]!=NULL)
{
tx=p1[a]->getx();
ty=p1[a]->gety();
tt=p1[a]->gett();
if(abs(tx-x)<=1&&abs(ty-y)<=1)
{
key=1;
break;
}
}
}
if(key==1)
{
p1[a]->die(p1[a]);
bullet *q=p;
p=NULL;
delete q;
return ;
}
viewin();
}
void tank::tank1()
{
if(t==0)
direction=2;
if(t==1)
direction=1;
x=1;
y=48;
v=1;
}
int tank::getx()
{
return this->x;
}
int tank::gety()
{
return this->y;
}
void tank::me(int x,int y,tank *&p)
{
if(x-(this->x)<=1&&x-(this->x)>=-1)
if(y-(this->y)<=1&&y-(this->y)>=-1)
die(p);
}
void tank::die(tank *&p)
{
p->viewcl();
tank *q=p;
p=NULL;
delete q;
}
tank::tank(int T)
{
t=T;
int a;
if(t==0)
{
direction=2;
x=5;
y=1;
}
if(t==2)
{
t=0;
direction=2;
x=43;
y=1;
}
if(t==1)
{
direction=1;
x=1;
y=48;
}
v=1;
for(a=0;a<=8;a++)
{
body[0][a]=t+1;
body[1][a]=t+1;
body[2][a]=t+1;
body[3][a]=t+1;
if(a==0||a==2||a==7)
{
body[0][a]=0;
}
if(a==1||a==6||a==8)
{
body[1][a]=0;
}
if(a==0||a==5||a==6)
{
body[2][a]=0;
}
if(a==2||a==3||a==8)
{
body[3][a]=0;
}
}
viewin();
}
void tank::smart(tank *p,bullet *b,bullet *&p1,tank *p2[])
{
static int kk;
int dx,dy,bx,by;
if(p==NULL)
return ;
dx=p->getx()-x;
dy=p->gety()-y;
if(b==NULL)
{
bx=100;
by=100;
}
if(b!=NULL)
{
bx=b->getx()-x;
by=b->gety()-y;
}
if(abs(bx)>1&&abs(by)>1)
{
if(b==NULL)
{
if(dx<-1&&dy<-1&&abs(dy)<=abs(dx))
{
move(p1,p2,1);
return ;
}
if(dx<-1&&dy<-1&&abs(dy)>abs(dx))
{
move(p1,p2,3);return ;
}
if(dx<-1&&dy>1&&abs(dy)<=abs(dx))
{
move(p1,p2,2);return ;
}
if(dx<-1&&dy>1&&abs(dy)>abs(dx))
{
move(p1,p2,3);return ;
}
if(dx>1&&dy<-1&&abs(dy)<=abs(dx))
{
move(p1,p2,1);return ;
}
if(dx>1&&dy<-1&&abs(dy)>abs(dx))
{
move(p1,p2,4);return ;
}
if(dx>1&&dy>1&&abs(dy)<=abs(dx))
{
move(p1,p2,2);return ;
}
if(dx>1&&dy>1&&abs(dy)>abs(dx))
{
move(p1,p2,4);return ;
}
}
if(abs(dx)<=5&&abs(dy)<=5)
{
kk=1+rand()%4;
move(p1,p2,kk);return ;
}
if(abs(dx)<=1)
{
if(dy>0)
{
if(direction==2)
{
move(p1,p2,5);return ;
}
else
{
move(p1,p2,2);return ;
}
}
if(dy<0)
{
if(direction==1)
{
move(p1,p2,5);return ;
}
else
{
move(p1,p2,1);return ;
}
}
}
if(abs(dy)<=1)
{
if(dx<0)
{
if(direction==3)
{
move(p1,p2,5);return ;
}
else
{
move(p1,p2,3);return ;
}
}
if(dx>0)
{
if(direction==4)
{
move(p1,p2,5);return ;
}
else
{
move(p1,p2,4);return ;
}
}
}
}
else
{
if(abs(bx)<=1)
{
if(dx>0)
{
move(p1,p2,3);return ;
}
if(dx<0)
{
move(p1,p2,4);return ;
}
if(dx==0)
{
move(p1,p2,3);return ;
}
}
if(abs(by)<=1)
{
if(dy>0)
{
move(p1,p2,1);return ;
}
if(dy<0)
{
move(p1,p2,2);return ;
}
if(dy==0)
{
move(p1,p2,1);return ;
}
}
}
}
void tank::move(bullet *&p,tank *b[],int tt=0)
{
int k,a,key=0;
if(tt==0)
if(kbhit())
{
k=kb();
switch(k)
{
case 1:viewcl();y-=v;direction=k;break;
case 2:viewcl();y+=v;direction=k;break;
case 3:viewcl();x-=v;direction=k;break;
case 4:viewcl();x+=v;direction=k;break;
case 5:fire(p);break;
}
for(a=0;a<=1;a++)
{
if(abs(b[a]->getx()-x)<=2&&abs(abs(b[a]->gety()-y)<=2)&&abs(b[a]->getx()-x)!=0&&abs(abs(b[a]->gety()-y)!=0))
{
key=1;
}
}
if(key||x<1||x>48||y<1||y>48)
switch(k)
{
case 1:y+=v;direction=k;break;
case 2:y-=v;direction=k;break;
case 3:x+=v;direction=k;break;
case 4:x-=v;direction=k;break;
case 5:fire(p);break;
}
viewin();
}
if(tt!=0)
{
k=tt;
switch(k)
{
case 1:viewcl();y-=v;direction=k;break;
case 2:viewcl();y+=v;direction=k;break;
case 3:viewcl();x-=v;direction=k;break;
case 4:viewcl();x+=v;direction=k;break;
case 5:fire(p);break;
}
for(a=0;a<=1;a++)
{
if(abs(b[a]->getx()-x)<=2&&abs(abs(b[a]->gety()-y)<=2)&&abs(b[a]->getx()-x)!=0&&abs(abs(b[a]->gety()-y)!=0))
{
key=1;
}
}
if(key||x<1||x>48||y<1||y>48)
switch(k)
{
case 1:y+=v;direction=k;break;
case 2:y-=v;direction=k;break;
case 3:x+=v;direction=k;break;
case 4:x-=v;direction=k;break;
case 5:fire(p);break;
}
viewin();
}
}
void tank::viewin()
{
int a,b,c=0;
for(b=y-1;b<=y+1;b++)
{
for(a=x-1;a<=x+1;a++)
{
xx[a][b]=body[direction-1][c];
c++;
}
}
}
void tank::viewcl()
{
int a,b,c=0;
for(a=x-1;a<=x+1;a++)
{
for(b=y-1;b<=y+1;b++)
{
xx[a][b]=0;
}
}
}
int main()
{
int order;
cout<<"让我去还是你自己去\n1:玩家\n2:电脑"<<endl;
cin>>order;
initgraph(500,500);
refresh();
tank *t[3];
t[0]=new tank(1);
t[1]=new tank(0);
//t[2]=new tank(2);
bullet *bu[3];
int a;
for(a=0;a<=2;a++)
bu[a]=NULL;
graph();
while(1)
{
for(a=0;a<=2;a++)
{
if(bu[a]!=NULL)
{
bu[a]->move(bu[a],t);
}
}
for(a=1;a<=1;a++)
{
if(t[a]!=NULL)
t[a]->smart(t[0],bu[0],bu[a],t);
}
if(order==1)
{
if(t[0]!=NULL)
t[0]->move(bu[0],t);
}
if(order!=1)
{
if(t[0]!=NULL)
t[0]->smart(t[1],bu[1],bu[0],t);
}
if(t[0]==NULL)
{
closegraph();
system("cls");
cout<<"你输了,我不是说你渣，而是在座的各位都是渣渣"<<endl;
Sleep(5000);
break;
}
if(t[1]==NULL)
{
closegraph();
system("cls");
cout<<"你居然赢了"<<endl;
Sleep(5000);
break;
}
graph();
/*for(int k=0;k<=49;k++)
{
for(int l=0;l<=49;l++)
{
cout<<xx[l][k];
}
cout<<endl;
}*/
Sleep(10);
//system("cls");
}
return 0;
}