jakciehan
92 lines
2.2 KiB
JavaScript
92 lines
2.2 KiB
JavaScript
/**
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* I18n.js
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* Internationalization module for Tank Adventure.
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* Auto-detects language from WeChat system info.
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* Supports {variable} placeholder interpolation.
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*/
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const zhLang = require('./zh');
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const enLang = require('./en');
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// ============================================================
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// Language Detection
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// ============================================================
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let _currentLang = 'en'; // default fallback
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try {
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const sysInfo = wx.getSystemInfoSync();
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const lang = (sysInfo.language || '').toLowerCase();
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// zh_CN, zh_TW, zh_HK, etc.
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if (lang.startsWith('zh')) {
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_currentLang = 'zh';
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}
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} catch (e) {
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// Fallback to English if wx API is unavailable
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_currentLang = 'en';
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}
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const _langPacks = {
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zh: zhLang,
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en: enLang,
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};
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// ============================================================
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// Translation Function
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// ============================================================
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/**
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* Get translated text by key.
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* Supports {variable} placeholder interpolation.
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*
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* @param {string} key - The translation key, e.g. 'menu.title'
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* @param {Object} [params] - Optional parameters for interpolation
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* @returns {string} The translated text
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*
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* @example
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* t('menu.title') // => '坦克探险' or 'Tank Adventure'
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* t('pvp.hp', { count: 3 }) // => '生命 x3' or 'HP x3'
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*/
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function t(key, params) {
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// Try current language first
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let text = _langPacks[_currentLang] && _langPacks[_currentLang][key];
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// Fallback to English
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if (text === undefined && _currentLang !== 'en') {
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text = _langPacks.en[key];
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}
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// Fallback to key itself
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if (text === undefined) {
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return key;
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}
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// Interpolate {variable} placeholders
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if (params) {
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text = text.replace(/\{(\w+)\}/g, (match, name) => {
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return params[name] !== undefined ? String(params[name]) : match;
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});
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}
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return text;
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}
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/**
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* Get the current language code.
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* @returns {string} 'zh' or 'en'
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*/
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function getLang() {
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return _currentLang;
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}
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/**
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* Set the language manually (for testing or future settings).
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* @param {string} lang - 'zh' or 'en'
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*/
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function setLang(lang) {
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if (_langPacks[lang]) {
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_currentLang = lang;
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}
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}
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module.exports = { t, getLang, setLang };
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