Ivan Fontosh
2c0e6fbf09
Water and rain erase fire under a tight brush hit radius; add looping fire/rain ambients and an Effects sound slider that also scales one-shot effect SFX. Co-authored-by: Cursor <cursoragent@cursor.com>
59 lines
2.0 KiB
TypeScript
59 lines
2.0 KiB
TypeScript
/** Звук эффекта «Луч света» (`public/luch_sveta.mp3`). */
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import { getEffectsSfxGain } from './effectsSfxGain';
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const SUNBEAM_SFX_VOLUME = 0.88;
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/** Воспроизведение на 50% быстрее → реальная длительность = файл / 1.5. */
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export const SUNBEAM_PLAYBACK_RATE = 1.5;
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const DEFAULT_SUNBEAM_LIFE_MS = 600;
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export function sunbeamEffectSoundUrl(): string {
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return new URL('luch_sveta.mp3', window.location.href).href;
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}
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let cachedSunbeamSfxDurationMs: number | null = null;
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/** Длительность файла в мс (как в метаданных, без ускорения). */
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export function getSunbeamSfxDurationMs(): Promise<number> {
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if (cachedSunbeamSfxDurationMs !== null) {
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return Promise.resolve(cachedSunbeamSfxDurationMs);
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}
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const url = sunbeamEffectSoundUrl();
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return new Promise((resolve) => {
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const a = new Audio();
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const done = (ms: number): void => {
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cachedSunbeamSfxDurationMs = ms;
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a.removeAttribute('src');
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resolve(ms);
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};
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a.addEventListener('loadedmetadata', () => {
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const d = a.duration;
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done(Number.isFinite(d) && d > 0 ? Math.round(d * 1000) : DEFAULT_SUNBEAM_LIFE_MS);
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});
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a.addEventListener('error', () => done(DEFAULT_SUNBEAM_LIFE_MS));
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a.src = url;
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a.load();
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});
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}
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/**
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* Длительность визуала луча = время проигрывания при ускорении 1.5× (совпадает со звуком).
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*/
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export async function getSunbeamEffectLifeMs(): Promise<number> {
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const raw = await getSunbeamSfxDurationMs();
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const wallMs = raw / SUNBEAM_PLAYBACK_RATE;
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return Math.min(60_000, Math.max(400, Math.round(wallMs)));
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}
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export function playSunbeamEffectSound(): void {
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try {
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const el = new Audio(sunbeamEffectSoundUrl());
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el.volume = Math.max(0, Math.min(1, SUNBEAM_SFX_VOLUME * getEffectsSfxGain()));
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el.playbackRate = SUNBEAM_PLAYBACK_RATE;
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void el.play().catch(() => undefined);
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} catch {
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/* ignore */
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}
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}
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