/*espina*/
/*Fernando Galindo Soria*/

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

void arbol(int,int,float,int,float);
int ind,ang=-31;

void main()
{
  int gd=DETECT,gm,ind1;
  initgraph(&gd,&gm,"");
  ind=1;
  while(!kbhit()){
    arbol(250,300,0,180,50);ang++;cleardevice();}
  getch();
  cleardevice();ang=0;arbol(250,300,0,180,50);
  getch();
  closegraph();
}

void arbol(int x0,int y0,float l,int an,float nivel)
{
  int x1,y1;
  if (nivel > ind )
  {//  setcolor(l);
    x1=x0-(l*cos(an/57.29578));
    y1=y0-(l*sin(an/57.29578));
    line(x0,y0,x1,y1);

    arbol(x1,y1,l,an-57,nivel/3);
    arbol(x1,y1,l+.5,an-ang,nivel-1);
    arbol(x1,y1,l,an+57,nivel/3);
  }
}