removing old nature of code examples before adding new ones

2026-06-16 04:26:26 +02:00 · 2012-12-11 20:01:56 +00:00
parent e3aff605a8
commit 9b4891e419
541 changed files with 0 additions and 35009 deletions
@@ -1,43 +0,0 @@
-// Stay Within Walls
-// Daniel Shiffman <http://www.shiffman.net>
-// The Nature of Code
-
-// "Made-up" Steering behavior to stay within walls
-
-
-Vehicle v;
-boolean debug = true;
-
-
-PVector circleLocation;
-float circleRadius;
-
-
-
-void setup() {
-  size(640, 360);
-  v = new Vehicle(width/2, height/4);
-  
-  circleLocation = new PVector(width/2,height/2);
-  circleRadius = height/2-25;
-  
-  smooth();
-}
-
-void draw() {
-  background(255);
-
-  if (debug) {
-    stroke(175);
-    noFill();
-    ellipse(circleLocation.x,circleLocation.y, circleRadius*2,circleRadius*2);
-  }
-
-  v.boundaries();
-  v.run();
-}
-
-void mousePressed() {
-  debug = !debug;
-}
-
@@ -1,95 +0,0 @@
-// Wander
-// Daniel Shiffman <http://www.shiffman.net>
-// The Nature of Code
-
-// The "Vehicle" class (for wandering)
-
-class Vehicle {
-
-  PVector location;
-  PVector velocity;
-  PVector acceleration;
-  float r;
-
-  float maxspeed;
-  float maxforce;
-  
-  Vehicle(float x, float y) {
-    acceleration = new PVector(0, 0);
-    velocity = new PVector(1,0);
-    velocity.mult(5);
-    location = new PVector(x, y);
-    r = 3;
-    maxspeed = 3;
-    maxforce = 0.15;
-  }
-
-  void run() {
-    update();
-    display();
-  }
-
-  // Method to update location
-  void update() {
-    // Update velocity
-    velocity.add(acceleration);
-    // Limit speed
-    velocity.limit(maxspeed);
-    location.add(velocity);
-    // Reset accelertion to 0 each cycle
-    acceleration.mult(0);
-  }
-
-  void boundaries() {
-
-    PVector desired = null;
-    
-    // Predict location 25 (arbitrary choice) frames ahead
-    PVector predict = velocity.get();
-    predict.mult(25);
-    PVector futureLocation = PVector.add(location, predict);
-    float distance = PVector.dist(futureLocation,circleLocation);
-    
-    if (distance > circleRadius) {
-      PVector toCenter = PVector.sub(circleLocation,location);
-      toCenter.normalize();
-      toCenter.mult(velocity.mag());
-      desired = PVector.add(velocity,toCenter);
-      desired.normalize();
-      desired.mult(maxspeed);
-    }
-
-    if (desired != null) {
-      PVector steer = PVector.sub(desired, velocity);
-      steer.limit(maxforce);
-      applyForce(steer);
-    }
-    
-    fill(255,0,0);
-    ellipse(futureLocation.x,futureLocation.y,4,4);
-    
-  }  
-
-  void applyForce(PVector force) {
-    // We could add mass here if we want A = F / M
-    acceleration.add(force);
-  }
-
-
-  void display() {
-    // Draw a triangle rotated in the direction of velocity
-    float theta = velocity.heading2D() + radians(90);
-    fill(175);
-    stroke(0);
-    pushMatrix();
-    translate(location.x, location.y);
-    rotate(theta);
-    beginShape(TRIANGLES);
-    vertex(0, -r*2);
-    vertex(-r, r*2);
-    vertex(r, r*2);
-    endShape();
-    popMatrix();
-  }
-}
-