Помочь с прогой - C++ - Ответ 1327712

#include <iostream.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <graphics.h>
void menu();
void game();
void help();
 
 
int main() {
int gdriver=DETECT, gmode;
initgraph(&gdriver,&gmode,"\bin");
cleardevice();
srand(time(NULL));
int x=100,y=100,dx=10,dy=10;
int ch;
int x1[20],y1[20];
setbkcolor(0);
 while (ch!='4') {
 menu();
 ch=getch();
 switch (ch) {
case '3':
help();
break;
case '1':
game();
break;
}
for (int b=0;b<100;++b) {
putpixel (rand()%640,rand()%480,15);
}
/*if (x1[i]<0) {
setbkcolor(15);
} */
for (int i=0;i<20;++i) {
x1[i]=rand()%640;
}
for (i=0;i<20;++i) {
y1[i]=rand()%480;
}
while(ch!=27) {
setcolor(15);
for (int i=0;i<20;++i) {
circle(x1[i],y1[i],5);
}
delay(30);
setcolor(0);
for (i=0;i<20;++i) {
circle(x1[i],y1[i],5);
}
for (i=0;i<20;++i) {
x1[i]-=dx;
}
setcolor(1);
arc(x,y,0,180,5);
arc(x,y,180,360,8);
line(x-8,y,x+8,y);
delay(30);
if (kbhit())
ch=getch();
setcolor(0);
arc(x,y,0,180,5);
arc(x,y,180,360,8);
line(x-8,y,x+8,y);
switch(ch) {
case 72:
   y-=dy;
   break;
   case 80:
   y+=dy;
   break;
   case 75:
   x-=dx;
   break;
   case 77:
   x+=dx;
   break;
 }
 
 
 
 
 
 
 if (x>640) {
 setbkcolor(15);
 settextstyle(DEFAULT_FONT,0,5);
 setcolor(13);
 outtextxy(270,240,"You win");
 ch=27;
 getch(); }
}
 closegraph();
}return 0;
}
 
 
 void menu() {
outtextxy(300,100,"1.Game");
outtextxy(300,120,"2.About");
outtextxy(300,140,"3.Help");
}
 
void help() {
cleardevice();
outtextxy(300,100,"Help will be here");
getch();
cleardevice();
}
void game() {
cleardevice();
setcolor(1);
outtextxy(200,100,"You can press evry button and game began.");
getch();
cleardevice();
}