/*

Title Bouncing Ball - Computer Graphics Author Prashant Kumar Singh Author Email chdprashant [at] yahoo.com Description This is progarm which demostrate a ball bouncing on a surface.
Category C++ » Computer Graphics Hits 1350

*/

#include<dos.h>
#include<iostream.h>
#include<graphics.h>
#include<math.h>
#include<conio.h>
void main()
 {

   int d=DETECT,m;
   initgraph(&d,&m,"e:\tcc\bgi");
   float x=1,y=0.00000,j=.5,count=.1;
   float r=15;
   setcolor(14);
   line(0,215,650,215);
    sleep(1);
    for(int k=0;k<=7;k++)
     {

      for(float i=90;i<270;i+=10)
       {
	y=cos(((i*22/7)/180))/j;

	if(y>0)
	y=-y;
	x+=5;

	setcolor(14);
	setfillstyle(1,14);
	circle(x,y*100+200,r);
	floodfill(x,y*100+200,14);

       delay(100);

	setcolor(0);
	setfillstyle(1,0);
	circle(x,y*100+200,r);
	floodfill(x,y*100+200,0);

       }

      j+=count;
      count+=.1;

     }
   getch();
 }