53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import { ColdDeviceStorage } from "@/store";
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const ctx = new AudioContext();
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const cache = new Map<string, HTMLAudioElement>();
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export async function getAudio(
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file: string,
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useCache = true,
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): HTMLAudioElement {
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if (useCache && cache.has(file)) {
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return cache.get(file);
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}
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const response = await fetch(`/static-assets/sounds/${file}.mp3`);
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const arrayBuffer = await response.arrayBuffer();
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const audioBuffer = await ctx.decodeAudioData(arrayBuffer);
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if (useCache) {
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cache.set(file, audioBuffer);
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}
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return audioBuffer;
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}
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export function setVolume(
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audio: HTMLAudioElement,
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volume: number,
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): HTMLAudioElement {
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const masterVolume = ColdDeviceStorage.get("sound_masterVolume");
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audio.volume = masterVolume - (1 - volume) * masterVolume;
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return audio;
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}
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export function play(type: string) {
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const sound = ColdDeviceStorage.get(`sound_${type}` as any);
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if (sound.type == null) return;
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playFile(sound.type, sound.volume);
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}
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export async function playFile(file: string, volume: number) {
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const masterVolume = ColdDeviceStorage.get("sound_masterVolume");
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if (masterVolume === 0 || volume === 0) {
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return;
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}
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const gainNode = ctx.createGain();
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gainNode.gain.value = masterVolume * volume;
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const soundSource = ctx.createBufferSource();
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soundSource.buffer = await getAudio(file);
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soundSource.connect(gainNode).connect(ctx.destination);
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soundSource.start();
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}
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