class Switch {
  float x;
  float y;
  PImage imgOn;
  PImage imgOff;
  boolean on = false;
  Switch(float x0, float y0, PImage imgOn0, PImage imgOff0) {
    x = x0;
    y = y0;
    imgOn = imgOn0;
    imgOff = imgOff0;
  }

  void draw() {
    if (on) {
      image(imgOn, x, y);
    } else {
      image(imgOff, x, y);
    }
  }
}