Removing Topics from SVN

java/examples/Topics/Simulate/MultipleParticleSystems/CrazyParticle.pde

@@ -1,47 +0,0 @@
-// A subclass of Particle
-
-class CrazyParticle extends Particle {
-
-  // Just adding one new variable to a CrazyParticle
-  // It inherits all other fields from "Particle", and we don't have to retype them!
-  float theta;
-
-  // The CrazyParticle constructor can call the parent class (super class) constructor
-  CrazyParticle(PVector l) {
-    // "super" means do everything from the constructor in Particle
-    super(l);
-    // One more line of code to deal with the new variable, theta
-    theta = 0.0;
-
-  }
-
-  // Notice we don't have the method run() here; it is inherited from Particle
-
-  // This update() method overrides the parent class update() method
-  void update() {
-    super.update();
-    // Increment rotation based on horizontal velocity
-    float theta_vel = (vel.x * vel.mag()) / 10.0f;
-    theta += theta_vel;
-  }
-
-  // Override timer
-  void timer() {
-    timer -= 0.5;
-  }
-  
-  // Method to display
-  void render() {
-    // Render the ellipse just like in a regular particle
-    super.render();
-
-    // Then add a rotating line
-    pushMatrix();
-    translate(loc.x,loc.y);
-    rotate(theta);
-    stroke(255,timer);
-    line(0,0,25,0);
-    popMatrix();
-  }
-}
-

java/examples/Topics/Simulate/MultipleParticleSystems/MultipleParticleSystems.pde

@@ -1,50 +0,0 @@
-/**
- * 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)));
-}
-
-
-
-
-
-
-
-
-
-
-

java/examples/Topics/Simulate/MultipleParticleSystems/Particle.pde

@@ -1,57 +0,0 @@
-// A simple Particle class
-
-class Particle {
-  PVector loc;
-  PVector vel;
-  PVector acc;
-  float r;
-  float timer;
-
-  // One constructor
-  Particle(PVector a, PVector v, PVector l, float r_) {
-    acc = a.get();
-    vel = v.get();
-    loc = l.get();
-    r = r_;
-    timer = 100.0;
-  }
-  
-  // Another constructor (the one we are using here)
-  Particle(PVector l) {
-    acc = new PVector(0,0.05,0);
-    vel = new PVector(random(-1,1),random(-2,0),0);
-    loc = l.get();
-    r = 10.0;
-    timer = 100.0;
-  }
-
-
-  void run() {
-    update();
-    render();
-  }
-
-  // Method to update location
-  void update() {
-    vel.add(acc);
-    loc.add(vel);
-    timer -= 1.0;
-  }
-
-  // Method to display
-  void render() {
-    ellipseMode(CENTER);
-    stroke(255,timer);
-    fill(100,timer);
-    ellipse(loc.x,loc.y,r,r);
-  }
-  
-  // Is the particle still useful?
-  boolean dead() {
-    if (timer <= 0.0) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-}

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

@@ -1,51 +0,0 @@
-// 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
-
-  ParticleSystem(int num, PVector v) {
-    particles = new ArrayList();              // Initialize the arraylist
-    origin = v.get();                        // Store the origin point
-    for (int i = 0; i < num; i++) {
-      // We have a 50% chance of adding each kind of particle
-      if (random(1) < 0.5) {
-        particles.add(new CrazyParticle(origin)); 
-      } else {
-        particles.add(new Particle(origin)); 
-      }
-    }
-  }
-
-  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);
-      }
-    }
-  }
-
-  void addParticle() {
-    particles.add(new Particle(origin));
-  }
-
-  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;
-    }
-  }
-
-}
-