Function randomWithin

randomColor.js:314–330

(range)

  }

  function randomWithin(range) {
    if (seed === null) {
      //generate random evenly destinct number from : https://martin.ankerl.com/2009/12/09/how-to-create-random-colors-programmatically/
      var golden_ratio = 0.618033988749895;
      var r = Math.random();
      r += golden_ratio;
      r %= 1;
      return Math.floor(range[0] + r * (range[1] + 1 - range[0]));
    } else {
      //Seeded random algorithm from http://indiegamr.com/generate-repeatable-random-numbers-in-js/
      var max = range[1] || 1;
      var min = range[0] || 0;
      seed = (seed * 9301 + 49297) % 233280;
      var rnd = seed / 233280.0;
      return Math.floor(min + rnd * (max - min));
    }
  }

  function HSVtoHex(hsv) {
    var rgb = HSVtoRGB(hsv);