/* Une scene OpenGL                             */
/*                                              */
/* Auteur: Nicolas JANEY                        */
/* nicolas.janey@univ-fcomte.fr                 */
/* Octobre 2009                                 */

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

/* Fonction de modelisation de la scene         */

static void element(GLfloat *c1,GLfloat *c2,GLfloat *c3) {
  glPushMatrix();
  glMaterialfv(GL_FRONT,GL_DIFFUSE,c1);
  glutSolidTorus(0.75,10.0,90,90);
  glPushMatrix();
  glMaterialfv(GL_FRONT,GL_DIFFUSE,c2);
  glTranslatef(6.0F,0.0F,0.0F);
  glScalef(12.0F,1.5F,1.5F);
  glutSolidCube(1.0);
  glPopMatrix();
  glPushMatrix();
  glMaterialfv(GL_FRONT,GL_DIFFUSE,c3);
  glTranslatef(-6.0F,0.0F,0.0F);
  glScalef(12.0F,1.5F,1.5F);
  glutSolidCube(1.0);
  glPopMatrix();
  glPopMatrix();
}

void scene(void) {
  const GLfloat l_pos0[] = { 1.0F,1.0F,1.0F,0.0F };
  const GLfloat l_pos1[] = { -1.0F,1.0F,1.0F,0.0F };
  const GLfloat blanc[4] = { 1.0F,1.0F,1.0F,1.0F };
  const GLfloat gris[4] = { 0.6F,0.6F,0.6F,1.0F };
  const GLfloat rouge[4] = { 1.0F,0.0F,0.0F,1.0F };
  const GLfloat vert[4] = { 0.0F,1.0F,0.0F,1.0F };
  const GLfloat bleu[4] = { 0.0F,0.0F,1.0F,1.0F };
  const GLfloat jaune[4] = { 1.0F,1.0F,0.0F,1.0F };
  const GLfloat cyan[4] = { 0.0F,1.0F,1.0F,1.0F };
  const GLfloat magenta[4] = { 1.0F,0.0F,1.0F,1.0F };
  glEnable(GL_LIGHTING);
  glEnable(GL_LIGHT0);
  glEnable(GL_LIGHT1);
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_NORMALIZE);
  glLightfv(GL_LIGHT0,GL_POSITION,l_pos0);
  glLightfv(GL_LIGHT1,GL_POSITION,l_pos1);
  glLightfv(GL_LIGHT0,GL_DIFFUSE,gris);
  glLightfv(GL_LIGHT1,GL_DIFFUSE,gris);
  glPushMatrix();
  element((GLfloat *) blanc,(GLfloat *) rouge,(GLfloat *) jaune);
  glPopMatrix();
  glPushMatrix();
  glRotatef(90.0F,1.0F,0.0F,0.0F);
  glRotatef(90.0F,0.0F,0.0F,1.0F);
  element((GLfloat *) blanc,(GLfloat *) vert,(GLfloat *) cyan);
  glPopMatrix();
  glPushMatrix();
  glRotatef(90.0F,0.0F,1.0F,0.0F);
  glRotatef(90.0F,0.0F,0.0F,1.0F);
  element((GLfloat *) blanc,(GLfloat *) bleu,(GLfloat *) magenta);
  glPopMatrix();
}