For use in JUDO5

PseudoRandom.js

function main() {
  var size = 10;
  var width = getDrawingWidth() / size;
  var height = getDrawingHeight() / size;

  setBackgroundColor(white);
  
  while (true) {
    setColor(black);
    for (var x = 0; x < width; x++) {
      for (var y = 0; y < height; y++) {
        if (randomInt(2) > 0) {
          fillRectangle(x * size, y * size, size, size);
        }
      }
    }
    delay(.1);
    setColor(white);
    fillRectangle(0, 0, getDrawingWidth(), getDrawingHeight());
  }
}