/*nube*/
/*Fernando Galindo Soria*/

#include <graphics.h>
#include <math.h>
#include <bios.h>

void nube(int,int,int,int,int);
void recta(int,int,int,int,int*,int*);

void main()
{
  int gd=DETECT,gm;
  initgraph(&gd,&gm,"");
  nube(280,150,55,180,9);
//  getch();
//  closegraph();
}

void nube(int x0,int y0,int l,int an,int ind)
{
  int x1,y1;
  if (bioskey(2)!=0x04)
  if (ind > 0)
  {
    recta(x0,y0,l,an,&x1,&y1);
    nube(x0,y0,l/1.25,an+30,ind-1);
    nube(x1,y1,l/1.3,an+50,ind-1);
    nube(x1,y1,l/1.4,an+100,ind-1);
  }                       
}

void recta(int x0,int y0,int l,int an,int *x1,int *y1)
{
  *x1=x0-(l*cos(an/57.29578));
  *y1=y0-(l*sin(an/57.29578));
  line(x0,y0,*x1,*y1);
}