Removing Topics from SVN

java/examples/Topics/Simulate/SmokeParticleSystem/ParticleSystem.pde

@@ -1,57 +0,0 @@
-// A class to describe a group of Particles
-// An ArrayList is used to manage the list of Particles 
-
-class ParticleSystem {
-
-  ArrayList particles;    // An arraylist for all the particles
-  PVector origin;        // An origin point for where particles are birthed
-  PImage img;
-  
-  ParticleSystem(int num, PVector v, PImage img_) {
-    particles = new ArrayList();              // Initialize the arraylist
-    origin = v.get();                        // Store the origin point
-    img = img_;
-    for (int i = 0; i < num; i++) {
-      particles.add(new Particle(origin, img));    // Add "num" amount of particles to the arraylist
-    }
-  }
-
-  void run() {
-    // Cycle through the ArrayList backwards b/c we are deleting
-    for (int i = particles.size()-1; i >= 0; i--) {
-      Particle p = (Particle) particles.get(i);
-      p.run();
-      if (p.dead()) {
-        particles.remove(i);
-      }
-    }
-  }
-  
-  // Method to add a force vector to all particles currently in the system
-  void add_force(PVector dir) {
-    for (int i = particles.size()-1; i >= 0; i--) {
-      Particle p = (Particle) particles.get(i);
-      p.add_force(dir);
-    }
-  
-  }  
-
-  void addParticle() {
-    particles.add(new Particle(origin,img));
-  }
-
-  void addParticle(Particle p) {
-    particles.add(p);
-  }
-
-  // A method to test if the particle system still has particles
-  boolean dead() {
-    if (particles.isEmpty()) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-}
-