biolum/ParticleSystem.pde at master · dhodge1/biolum · GitHub

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class ParticleSystem
{

  ArrayList<Particle> particles;
  PVector origin;

  ParticleSystem(int num, PVector v)
  {
    particles = new ArrayList<Particle>();
    origin = v.get();
    for (int i = 0; i < num; i++)
    {
      addParticle();
    }
  }

  void run()
  {
    Iterator<Particle> it = particles.iterator();
    while (it.hasNext())
    {
      Particle p = it.next();
      p.run();
      if (p.isDead())
      {
        it.remove();
      }
    }
  }

  void addParticle()
  {
    particles.add(new Particle(origin));
  }

  void addParticle(Particle p)
  {
    particles.add(p);
  }

  boolean dead()
  {
    if (particles.isEmpty())
    {
      return true;
    } else
    {
      return false;
    }
  }

}