random-generator_node-red-contrib/nodes/colorGenerator.js

A package to meet the randomness generation needs of node-red developers

module.exports = function (RED) {
  function randomColorGenerator(config) {
    RED.nodes.createNode(this, config);
    var node = this;
    node.on("input", function (msg) {
      var o = Math.round,
        r = Math.random,
        s = 255;
      switch (config.format) {
        case "Hex":
          msg.payload = "#" + Math.floor(Math.random() * 16777215).toString(16);
          break;
        case "RGBA":
          msg.payload =
            "(" +
            o(r() * s) +
            "," +
            o(r() * s) +
            "," +
            o(r() * s) +
            "," +
            r().toFixed(1) +
            ")";
          break;
        case "RGB":
          msg.payload =
            "(" + o(r() * s) + "," + o(r() * s) + "," + o(r() * s) + ")";
          break;
        case "HSL":
          msg.payload =
            "(" +
            o(r() * 361) +
            "," +
            o(r() * 101) +
            "%," +
            o(r() * 101) +
            "%)";
          break;
        default:
      }
      node.send(msg);
    });
  }
  RED.nodes.registerType("Color", randomColorGenerator);
};