gistfile1.txt

class Oscillator {

  PVector angle;
  PVector velocity;
  PVector amplitude;
  float a, b;

  Oscillator(float _x, float _y) {
    a = _x;
    b = _y;
    angle = new PVector();
    velocity = new PVector(random(-0.05, 0.05), random(-0.05, 0.05));
    //Random velocities and amplitudes
    amplitude = new PVector(random(width/2), random(height/2));
  }

  void oscillate() {
    angle.add(velocity);
  }

  void display() {
    //Oscillating on the x-axis
    float x = sin(angle.x)*amplitude.x;
    //Oscillating on the y-axis
    float y = sin(angle.y)*amplitude.y;

    pushMatrix();
    translate(a, b);
    fill(random(0,255));
    ellipse(x, y, 16, 16);
    popMatrix();
  }
}