gameguard-client/build/utils.js

The client-side companion to the GameGuard that communicates with the server to manage the player and their data.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.messageToBuffer = messageToBuffer;
exports.getPlayerId = getPlayerId;

var _jsCookie = _interopRequireDefault(require("js-cookie"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
* Encodes a message from a message object to an ArrayBuffer.
* 
* @param {Message} message The message to encode.
* 
* @returns {ArrayBuffer} Returns the message as an ArrayBuffer.
*/
function messageToBuffer(message) {
  var encoder = new TextEncoder();
  var type = message.type,
      contents = message.contents,
      timestamp = message.timestamp;
  var stringified = JSON.stringify({
    type: type,
    contents: contents,
    timestamp: timestamp
  });
  return encoder.encode(stringified);
}
/**
 * Checks to see if a player is an existing player by checking for a cookie
 * containing their player id. If no existing player id is found, then a new
 * one is created for the player.
 * 
 * @returns {string} Returns an existing or new player id.
 */


function getPlayerId() {
  var existingPlayerId = _jsCookie["default"].get('gameguardPlayerId');

  if (existingPlayerId) return existingPlayerId;
  var newPlayerId = generatePlayerId();

  _jsCookie["default"].set('gameguardPlayerId', newPlayerId, {
    expires: 365,
    path: ''
  });

  return newPlayerId;
}
/**
 * Generates a v4 compliant uuid to use for player ids.
 * 
 * This is based off the answer from: https://stackoverflow.com/a/2117523/4274475
 * 
 * @returns {string} Returns a valid v4 uuid.
 */


function generatePlayerId() {
  // @ts-ignore
  return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, function (c) {
    return (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16);
  });
}
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