/* Auteur: Nicolas JANEY                 */
/* nicolas.janey@univ-fcomte.fr          */
/* Octobre 2005                          */
/* Classe de gestion de rayons lumineux  */

#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>

#include "ModuleFleche.h"

#include "Rayon.h"

Rayon::Rayon(void) : Droite() {
}

Rayon::Rayon(float x,float y,float z,
             float dx,float dy,float dz) : Droite(x,y,z,dx,dy,dz) {
  this->d->normalise();
}

Rayon::Rayon(Position *p,Direction *d) : Droite(p,d) {
  this->d->normalise();
}

Rayon::~Rayon(void) {
}

void Rayon::dessine(void) {
  glPushMatrix();
  glTranslatef(p->x,p->y,p->z);
  glutSolidSphere(0.1,36,36);
  flecheEnVolume(d->x,d->y,d->z,0.1F,0.4F,0.03F);
  glBegin(GL_LINES);
  glVertex3f(d->x*100.0F,d->y*100.0F,d->z*100.0F);
  glVertex3f(-d->x*100.0F,-d->y*100.0F,-d->z*100.0F);
  glEnd();
  glPopMatrix();
}

void Rayon::dessine(float *c) {
  int l = glIsEnabled(GL_LIGHTING);
  glPushAttrib(GL_ALL_ATTRIB_BITS);
  glPushMatrix();
  glTranslatef(p->x,p->y,p->z);
  glEnable(GL_LIGHTING);
  glMaterialfv(GL_FRONT_AND_BACK,GL_DIFFUSE,c);
  glutSolidSphere(0.1,36,36);
  flecheEnVolume(d->x,d->y,d->z,0.1F,0.4F,0.03F);
  glDisable(GL_LIGHTING);
  glColor3fv(c);
  glBegin(GL_LINES);
  glVertex3f(d->x*100.0F,d->y*100.0F,d->z*100.0F);
  glVertex3f(0.0F,0.0F,0.0F);
  glEnd();
  glPopMatrix();
  if ( l )
    glEnable(GL_LIGHTING);
    else
    glDisable(GL_LIGHTING);
  glPopAttrib();
}