https://framagames.org/1597-master/js/local_score_manager.js

1window.fakeStorage = {
2  _data: {},
3
4  setItem: function (id, val) {
5    return this._data[id] = String(val);
6  },
7
8  getItem: function (id) {
9    return this._data.hasOwnProperty(id) ? this._data[id] : undefined;
10  },
11
12  removeItem: function (id) {
13    return delete this._data[id];
14  },
15
16  clear: function () {
17    return this._data = {};
18  }
19};
20
21function LocalScoreManager() {
22  this.key     = "bestScore";
23
24  var supported = this.localStorageSupported();
25  this.storage = supported ? window.localStorage : window.fakeStorage;
26}
27
28LocalScoreManager.prototype.localStorageSupported = function () {
29  var testKey = "test";
30  var storage = window.localStorage;
31
32  try {
33    storage.setItem(testKey, "1");
34    storage.removeItem(testKey);
35    return true;
36  } catch (error) {
37    return false;
38  }
39};
40
41LocalScoreManager.prototype.get = function () {
42  return this.storage.getItem(this.key) || 0;
43};
44
45LocalScoreManager.prototype.set = function (score) {
46  this.storage.setItem(this.key, score);
47};
48