Googly Eyes

  // Processing.js example by Jim Bumgardner
  
  float orbit = 6*60*1000; // 6 minute orbit (in milliseconds)
  
  int nbr_circles = 333;
  float deviation = 5/8.0;
  
  float phi = (sqrt(5)+1)/2 - 1;            // golden ratio
  float golden_angle = phi * TWO_PI;        // golden angle
  
  float gRotate = 0;
  float gStickiness = .5;
  
  class Eye {
    float x,y,diam;
    float adj = 0;
    Eye(float x, float y, float diam)
    {
         this.x = x;
         this.y = y;
         this.diam = diam;
         this.adj = -radians(random(15));
    }
    void draw()
    {
      if (random(180) < degrees(gRotate-adj)*gStickiness) {
        adj = gRotate;
      }
      pushMatrix();
        translate(x,y);
        rotate(-adj);
        noStroke();
        fill(255);
        ellipse(0,0,diam,diam);
        fill(0);
        ellipse(0,diam*(1-phi)*.9/2,diam*phi,diam*phi);
        stroke(255);
        noFill();
        arc(0,diam*(1-phi)/2*.9,diam*phi*.8,diam*phi*.8,TWO_PI-PI/3,TWO_PI);
      popMatrix();
    }
  
  };
  
  Eye[] eyes = new Eye[nbr_circles];
    
    
  void setup_eyes()
  {
    float lg_rad = width * .47;
    float lg_area = sq(lg_rad) * PI;
    
    float mean_area = lg_area / nbr_circles;
    
    float min_area = mean_area * (1-deviation);
    float max_area = mean_area * (1+deviation);
    
    float cum_area = 0;
    
    float fudge = .87;
    
    float hue_incr = frameCount * .0002 + .1;
    float angle_offset = frameCount * .01;
    
    for (int i = 1; i <= nbr_circles; ++i) {
  
      float angle = i*golden_angle + angle_offset;
    
      float ratio = i / (float) nbr_circles;
      float sm_area = min_area + ratio * (max_area - min_area);
  
  
      float sm_dia = 2 * sqrt( sm_area / PI );
      float adj_sm_dia = sm_dia * fudge;
    
      cum_area += sm_area;
    
      float spiral_rad = sqrt( cum_area / PI );
    
      float x = cos(angle) * spiral_rad;
      float y = sin(angle) * spiral_rad;
      
      eyes[i-1] = new Eye(x,y,adj_sm_dia);
    }
  }
  
  void setup()
  {
    size(500,500);
    smooth();
    frameRate(12);
    setup_eyes();
  }
  
  void draw()
  {
    background(0,85,164);
  
    gRotate = millis()*TWO_PI/orbit;
  
    fill(0);
    noStroke();
    pushMatrix();
    translate(width/2,height/2);
    rotate(gRotate);
    for (int i = 0; i < eyes.length; ++i) {
      eyes[i].draw();
    }
    popMatrix();
  
  }
  // END