removing old nature of code examples before adding new ones

java/examples/Books/Nature of Code/introduction/NoiseWalkVelocity/NoiseWalkVelocity.pde

@@ -1,25 +0,0 @@
-// Noise Walker
-// Daniel Shiffman <http://www.shiffman.net>
-// The Nature of Code
-
-Walker w;
-
-void setup() {
-  size(400,400);
-  smooth();
-  frameRate(30);
-
-  // Create a walker object
-  w = new Walker();
-
-}
-
-void draw() {
-  background(255);
-  // Run the walker object
-  w.walk();
-  w.display();
-}
-
-
-

java/examples/Books/Nature of Code/introduction/NoiseWalkVelocity/Walker.pde

@@ -1,60 +0,0 @@
-// Random Walker (No Vectors)
-// Daniel Shiffman <http://www.shiffman.net>
-// The Nature of Code
-
-// A random walker class!
-
-class Walker {
-  PVector location;
-  PVector velocity;
-
-  ArrayList<PVector> history;
-
-  PVector noff;
-
-
-  Walker() {
-    location = new PVector(width/2, height/2);
-    history = new ArrayList<PVector>();
-    noff = new PVector(random(1000), random(1000));
-    velocity = new PVector();
-  }
-
-  void display() {
-    stroke(0);
-    fill(175);
-    rectMode(CENTER);
-    rect(location.x, location.y, 16, 16);
-
-    beginShape();
-    stroke(0);
-    noFill();
-    for (PVector v: history) {
-      vertex(v.x, v.y);
-    }
-    endShape();
-  }
-
-  // Randomly move up, down, left, right, or stay in one place
-  void walk() {
-
-
-    velocity.x = map(noise(noff.x), 0, 1, -1, 1);
-    velocity.y = map(noise(noff.y), 0, 1, -1, 1);
-    velocity.mult(5);
-
-    noff.add(0.01, 0.01, 0);
-
-    location.add(velocity);
-
-    history.add(location.get());
-    if (history.size() > 1000) {
-      history.remove(0);
-    }
-
-    // Stay on the screen
-    location.x = constrain(location.x, 0, width-1);
-    location.y = constrain(location.y, 0, height-1);
-  }
-}
-