rattlesnake

color bg = #C38018;
color s = #662121;
color f = #330404;
ArrayList bricks = new ArrayList();

void setup() {

  size(500, 500);
  background(bg);
  stroke(s,150);
  strokeWeight(2);
  fill(f);

  rectMode(CENTER);

  int y = 0;
  int h = 2;
  float w = 200;
  float theta = 0;

  while (y<height+50) {
    y += h;
    Brick brick = new Brick(y, h, theta);
    bricks.add(brick);
    h += 2;
    theta += TAU/25;
  }
}

void draw() {
  background(bg);
  for (int i=0; i<bricks.size();i++) {
    Brick brick = (Brick) bricks.get(i);
    brick.run();
  }
  if (frameCount % 2 == 0 && frameCount<121) saveFrame("image-####.gif");

}
class Brick {
  float y, h, w, theta;

  Brick(float _y, float _h, float _theta) {
    y = _y;
    h = _h;
    theta = _theta;
  }

  void run() {
    move();
    display();
  }


  void move() {
    w = map(sin(theta*2), -1, 1, .8, 1.5);
    theta += 0.0523;
  }


  void display() {
    rect(width/2, y-h/2, (300-5*h)*w, h);
  }
}