Blinking Lights Graphics In C++

Source Code

# include <graphics.h>
# include <conio.h>
# include <dos.h>
# include <stdlib.h>
void intro()
{
  clrscr();
  int gd=DETECT,gm,i=0;
  detectgraph(&gd,&gm);
  initgraph(&gd,&gm,"c:\tc\bgi");
  rectangle(0,5,630,400);
  rectangle(10,15,620,390);

      settextstyle(1,0,1);
  outtextxy(245,238,"DESIGNER");
 while(!kbhit())
 {
   setcolor(i);
       settextstyle(2,0,0);
  outtextxy(32,170,"* * * * * * * * * * * * * * * * * * * * * * * * * *
*
* * * * * * * * * * * * * * * * * * * *");
  outtextxy(32,178,"*
*");
  outtextxy(32,186,"*
*");
  outtextxy(32,196,"*
*");


outtextxy(32,205,"* * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* * * * * * * * * * * * * * * * * * *");

   setfillstyle(XHATCH_FILL,i++);
   delay(200);
   floodfill(2,9,15);
   if(i>=15)
     i=0;
 }
  getch();
  cleardevice();
  closegraph();
}
/*******************END OF INTRO.H********************************/

              /*  main file:  blinky.h*/

# include <iostream.h>
# include <conio.h>
# include <graphics.h>
# include <dos.h>
# include <time.h>
# include <stdlib.h>
# include <intro.h>
# include <backend.h>


int poly[8],toggle=1,z;

void blink(int fuzzy[],int size,int lazy,int paint)
{
     for(int i=0;i<size;i++)
     {
       randomize();
       z=random(5);           // random
       if(!z) z=1;
       poly[0]=fuzzy[i];
       poly[1]=z*fuzzy[i+1];

       poly[2]=0+fuzzy[i];
       poly[3]=30+z*fuzzy[i+1];

       poly[4]=30+fuzzy[i];
       poly[5]=30+z*fuzzy[i+1];

       poly[6]=30+fuzzy[i];
       poly[7]=0+z*fuzzy[i+1];

       if(paint==1)
 paint=z;
       setfillstyle(1,paint);
       fillpoly(4,poly);

      delay(lazy);

      setfillstyle(1,0);
      fillpoly(4,poly);
    }
  }

 int roundoff(int x)
  {
    int temp=0;
    if(x%30!=0)
     {
       if(x<30)
return 30;
       else
{
  temp=x%30;
  return(30*temp);
}
     }
    else return x;
  }

void main()
 {
   int gd,gm;
   detectgraph(&gd,&gm);
   initgraph(&gd,&gm,"");
   intro();
   int ch,lazy,paint,size;
   flag:
   cout<<"
                      CONTROL PANEL";
   cout<<"
1.Change blink rate";
   cout<<"
2.Change blink color";
   cout<<"
3.Specify no. of blinks per second";
   cout<<"
4.Use default settings and exit";
   cout<<"
5.Exit simulator";
   cout<<"
Enter your choice--->";
   cin>>ch;
   switch(ch)
    {
      case 1:
cout<<"
choose type of blink rate: very slow/slow/fast/very
fast(enter
1/2/3/4)--->";
cin>>ch;
if(ch==1)
lazy=1000;
if(ch==2)
lazy=600;
if(ch==3)
lazy=100;
if(ch==4)
lazy=10;
       break;

      case 2:
cout<<"
blink color: random or fixed color ?(enter 1/2)--->";
cin>>paint;
      break;

      case 3:
cout<<"roughly estimate the no. of blinks per second(multiples of
ten,max
50)--->";
cin>>size;
break;
      case 4:
 lazy=100;
 paint=15;
 size=20;
break;
      case 5:
 backend();
 exit(0);
    }
   initgraph(&gd,&gm,"");

   for(int i=0;i<630;i+=30)
    {
     for(int j=0;j<470;j+=30)
     {  delay(10);
rectangle(i,j,i+30,j+30);
      }
    }
    int fuzzy[50],dummy=0;
    while(!kbhit())
    {
      randomize();
      for(i=0;i<size;i++)
      {
       dummy=random(480);
       fuzzy[i]=roundoff(dummy);
      }
      dummy=random(480);
      fuzzy[i+1]=roundoff(dummy);
      blink(fuzzy,size,lazy,paint);
    }
    closegraph();
    goto flag;

    getch();

 }

/**************************END OF BLINKY.H*************************/

                     /* back end: BACKEND.H*/

# include <graphics.h>
# include <conio.h>
# include <dos.h>
void backend()
 {
   int gd=DETECT,gm;
   detectgraph(&gd,&gm);
   initgraph(&gd,&gm,"c:\tc\bgi");
   rectangle(0,5,630,400);
   rectangle(12,15,618,390);
   settextstyle(1,0,5);
   outtextxy(180,60,"THANK YOU");
   settextstyle(1,0,3);
   outtextxy(160,128,"HOPE U LIKED IT !");
   settextstyle(1,0,1);
   outtextxy(220,250,"HAVE A NICE DAY !");
    int i=0;
  while(!kbhit())
   {
     delay(200);
     setfillstyle(XHATCH_FILL,i++);
     floodfill(2,9,15);
     if(i>=15)
      i=0;
   }


   getch();
   closegraph();


   }