/* Auteur: Nicolas JANEY                                */
/* nicolas.janey@univ-fcomte.fr                         */
/* Octobre 2007                                         */

public class RayonLumineux {
  public Position o;
  public Direction d;

  public RayonLumineux() {
    o = new Position();
    d = new Direction();
  }
  
  public RayonLumineux(Position o,Direction d) {
    this.o = new Position(o);
    this.d = new Direction(d);
  }
  
  public RayonLumineux(RayonLumineux r) {
    o = new Position(r.o);
    d = new Direction(r.d);
  }
  
  public boolean existeIntersection(Sphere s) {
    return(s.existeIntersection(this));
  }
  
  public Position premiereIntersection(Sphere s) {
    return(s.premiereIntersection(this));
  }
  
  public String toString() {
    return("["+o+",\n"+d+"]");
  }
}