Removing Topics from SVN

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

@@ -1,69 +0,0 @@
-
-// A simple Particle class, renders the particle as an image
-
-class Particle {
-  PVector loc;
-  PVector vel;
-  PVector acc;
-  float timer;
-  PImage img;
-
-  // One constructor
-  Particle(PVector a, PVector v, PVector l, PImage img_) {
-    acc = a.get();
-    vel = v.get();
-    loc = l.get();
-    timer = 100.0;
-    img = img_;
-  }
-
-  // Another constructor (the one we are using here)
-  Particle(PVector l,PImage img_) {
-    acc = new PVector(0.0,0.0,0.0);
-    float x = (float) generator.nextGaussian()*0.3f;
-    float y = (float) generator.nextGaussian()*0.3f - 1.0f;
-    vel = new PVector(x,y,0);
-    loc = l.get();
-    timer = 100.0;
-    img = img_;
-  }
-
-  void run() {
-    update();
-    render();
-  }
-  
-  // Method to apply a force vector to the Particle object
-  // Note we are ignoring "mass" here
-  void add_force(PVector f) {
-    acc.add(f);
-  }  
-
-  // Method to update location
-  void update() {
-    vel.add(acc);
-    loc.add(vel);
-    timer -= 2.5;
-    acc.mult(0);
-  }
-
-  // Method to display
-  void render() {
-    imageMode(CORNER);
-    tint(255,timer);
-    image(img,loc.x-img.width/2,loc.y-img.height/2);
-  }
-
-  // Is the particle still useful?
-  boolean dead() {
-    if (timer <= 0.0) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-}
-
-
-
-

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;
-    }
-  }
-
-}
-

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

@@ -1,69 +0,0 @@
-/**
- * Smoke Particle System
- * by Daniel Shiffman.  
- * 
- * A basic smoke effect using a particle system. 
- * Each particle is rendered as an alpha masked image. 
- */
-
-ParticleSystem ps;
-Random generator;
-
-void setup() {
-
-  size(640, 200);
-  colorMode(RGB, 255, 255, 255, 100);
-
-  // Using a Java random number generator for Gaussian random numbers
-  generator = new Random();
-
-  // Create an alpha masked image to be applied as the particle's texture
-  PImage msk = loadImage("texture.gif");
-  PImage img = new PImage(msk.width,msk.height);
-  for (int i = 0; i < img.pixels.length; i++) img.pixels[i] = color(255);
-  img.mask(msk);
-  ps = new ParticleSystem(0, new PVector(width/2,height-20 ),img);
-
-  smooth();
-}
-
-void draw() {
-  background(75);
-
-  // Calculate a "wind" force based on mouse horizontal position
-  float dx = (mouseX - width/2) / 1000.0;
-  PVector wind = new PVector(dx,0,0);
-  displayVector(wind,width/2,50,500);
-  ps.add_force(wind);
-  ps.run();
-  for (int i = 0; i < 2; i++) {
-    ps.addParticle();
-  }
-}
-
- void displayVector(PVector v, float x, float y, float scayl) {
-    pushMatrix();
-    float arrowsize = 4;
-    // Translate to location to render vector
-    translate(x,y);
-    stroke(255);
-    // Call vector heading function to get direction (note that pointing up is a heading of 0) and rotate
-    rotate(v.heading2D());
-    // Calculate length of vector & scale it to be bigger or smaller if necessary
-    float len = v.mag()*scayl;
-    // Draw three lines to make an arrow (draw pointing up since we've rotate to the proper direction)
-    line(0,0,len,0);
-    line(len,0,len-arrowsize,+arrowsize/2);
-    line(len,0,len-arrowsize,-arrowsize/2);
-    popMatrix();
-  } 
-
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