Exemple #1
0
  public NBodySystem() {
    bodies = new Body[] {Body.sun(), Body.jupiter(), Body.saturn(), Body.uranus(), Body.neptune()};

    double px = 0.0;
    double py = 0.0;
    double pz = 0.0;
    for (int i = 0; i < bodies.length; ++i) {
      px += bodies[i].vx * bodies[i].mass;
      py += bodies[i].vy * bodies[i].mass;
      pz += bodies[i].vz * bodies[i].mass;
    }
    bodies[0].offsetMomentum(px, py, pz);
  }