topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

talk show tell print

graphic-processing-site-examples-Topics-Simulate-MultipleParticleSystems-MultipleParticleSystems.pde / pde
Multiple Particle Systems by Daniel Shiffman. Click the mouse to generate a burst of particles at mouse location. Each burst is one instance of a particle system with Particles and CrazyParticles (a subclass of Particle) Note use of Inheritance and Polymorphism here. 

  
   
  ArrayList psystems;
  
  void setup() {
    size(640, 360);
    colorMode(RGB, 255, 255, 255, 100);
    psystems = new ArrayList();
    smooth();
  }
  
  void draw() {
    background(0);
  
    // Cycle through all particle systems, run them and delete old ones
    for (int i = psystems.size()-1; i >= 0; i--) {
      ParticleSystem psys = (ParticleSystem) psystems.get(i);
      psys.run();
      if (psys.dead()) {
        psystems.remove(i);
      }
    }
  
  }
  
  // When the mouse is pressed, add a new particle system
  void mousePressed() {
    psystems.add(new ParticleSystem(int(random(5,25)),new PVector(mouseX,mouseY)));
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.