WinterForest.pde

// Winter Forest

// Include this line if using Processing.js
/* @pjs pauseOnBlur="true"; */

float wiggle = 0;
float angle = -1.0;

void setup() {
  size(700, 250);
  smooth();
}

void draw() {
  background(255);
  for (int i = 0; i < width; i++) {
    stroke(random(1000)/4, 150);
    strokeWeight(random(0.2, 2.5));
    line(random(i-wiggle, i+wiggle), 0, random(i-wiggle, i+wiggle), height);
  }
  wiggle = sin(angle);
  wiggle = map(sin(angle), -1.0, 1.0, 0.0, 50.0);
  angle += 0.005;
}