tianta/extensions/localSave.js

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2022-10-16 21:58:52 +08:00
/**
* 离线游戏使用本地存储扩展
* 开启本拓展后将会把所有存档存至 _saves 目录下
* 需配合样板V2.8.2+使用
*/
"use strict";
(function () {
// 将这一行改成 false 可以禁用本拓展
var __enabled = true;
if (window.jsinterface || !window.fs || !__enabled) return;
function rewrite() {
core.utils._setLocalForage_set = function (name, str, callback) {
var data = LZString.compressToBase64(str);
core.saves.cache[name] = data;
fs.writeFile('_saves/' + name, data, 'utf-8', callback);
}
core.utils._getLocalForage_get = function (name, callback) {
fs.readFile('_saves/' + name, 'utf-8', function (err, data) {
if (err) return callback(err);
callback(null, data);
});
}
core.utils.decompress = function (data) {
try {
return JSON.parse(LZString.decompressFromBase64(data))
} catch (e) {
return null;
}
}
core.utils._removeLocalForage_remove = function (name, callback) {
fs.deleteFile('_saves/' + name, callback);
}
core.utils.clearLocalForage = function (callback) {
fs.deleteFile('_saves', function () {
fs.mkdir('_saves', callback);
})
}
core.utils.iterateLocalForage = function (iter, callback) {
fs.readdir('_saves', function (err, data) {
if (err) callback(err);
else {
data.forEach(function (one) {
iter(null, one, null);
});
callback();
}
});
}
core.utils.keysLocalForage = function (callback) {
fs.readdir('_saves', callback);
}
core.utils.lengthLocalForage = function (callback) {
fs.readdir('_saves', function (err, data) {
if (err) callback(err);
else callback(null, data.length);
});
}
}
var _export = function () {
var toExport = [];
localforage.iterate(function (value, key, n) {
if (value == null || !key.startsWith(core.firstData.name)) return;
value = core.decompress(value);
if (value == null) return;
var str = JSON.stringify(value).replace(/[\u007F-\uFFFF]/g, function (chr) {
return "\\u" + ("0000" + chr.charCodeAt(0).toString(16)).substr(-4)
});
str = LZString.compressToBase64(str);
toExport.push(key);
core.saves.cache[key] = str;
fs.writeFile('_saves/' + key, str, 'utf-8', function () {});
}, function () {
if (toExport.length > 0) {
alert('提示!本塔已开启存档本地化!原始存档已全部导出至 _saves/ 目录下。');
}
fs.writeFile('_saves/.exported', '1', 'utf-8', function () {});
rewrite();
core.control.getSaveIndexes(function (indexes) { core.saves.ids = indexes; });
});
}
fs.mkdir('_saves', function (err) {
if (err) return;
fs.readFile('_saves/.exported', 'utf-8', function(err, data) {
if (!err && data) {
rewrite();
core.control.getSaveIndexes(function (indexes) { core.saves.ids = indexes; });
return;
}
_export();
});
});
})();