54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
// utils.js — 轻量工具函数
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const sleep = ms => new Promise(r => setTimeout(r, ms));
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function dbg(msg) {
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const el = document.getElementById('dbg');
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if (el && el.style.display !== 'none') el.textContent = msg;
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}
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// 语音合成（选项朗读用）
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const TTS = {
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_voices: [],
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_ready: false,
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init() {
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if (!window.speechSynthesis) return;
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const load = () => {
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this._voices = speechSynthesis.getVoices();
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this._ready = true;
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};
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load();
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speechSynthesis.onvoiceschanged = load;
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},
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_pick() {
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// 优先选中文语音
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const zh = this._voices.find(v =>
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v.lang.startsWith('zh') || v.name.includes('Chinese') || v.name.includes('中')
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);
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return zh || this._voices[0] || null;
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},
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speak(text, { rate = 0.85, pitch = 1, volume = 0.85 } = {}) {
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return new Promise(resolve => {
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if (!window.speechSynthesis) { resolve(); return; }
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speechSynthesis.cancel();
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const u = new SpeechSynthesisUtterance(text);
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u.lang = 'zh-CN';
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u.rate = rate;
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u.pitch = pitch;
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u.volume = volume;
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const v = this._pick();
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if (v) u.voice = v;
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u.onend = resolve;
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u.onerror = resolve;
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speechSynthesis.speak(u);
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});
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},
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stop() {
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if (window.speechSynthesis) speechSynthesis.cancel();
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},
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};
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