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79 lines
1.9 KiB
79 lines
1.9 KiB
/* typehints:start */
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import { GameRoot } from "./root";
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/* typehints:end */
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import { Vector } from "../core/vector";
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import { SOUNDS } from "../platform/sound";
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const avgSoundDurationSeconds = 0.25;
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const maxOngoingSounds = 10;
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// Proxy to the application sound instance
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export class SoundProxy {
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/**
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* @param {GameRoot} root
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*/
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constructor(root) {
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this.root = root;
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// Store a list of sounds and when we started them
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this.playingSounds = [];
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}
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/**
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* Plays a new ui sound
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* @param {string} id Sound ID
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*/
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playUi(id) {
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assert(typeof id === "string", "Not a valid sound id: " + id);
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this.root.app.sound.playUiSound(id);
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}
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/**
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* Plays the ui click sound
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*/
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playUiClick() {
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this.playUi(SOUNDS.uiClick);
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}
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/**
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* Plays the ui error sound
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*/
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playUiError() {
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this.playUi(SOUNDS.uiError);
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}
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/**
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* Plays a 3D sound whose volume is scaled based on where it was emitted
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* @param {string} id Sound ID
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* @param {Vector} pos World space position
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*/
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play3D(id, pos) {
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assert(typeof id === "string", "Not a valid sound id: " + id);
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assert(pos instanceof Vector, "Invalid sound position");
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this.internalUpdateOngoingSounds();
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if (this.playingSounds.length > maxOngoingSounds) {
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// Too many ongoing sounds
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return false;
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}
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this.root.app.sound.play3DSound(id, pos, this.root);
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this.playingSounds.push(this.root.time.realtimeNow());
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return true;
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}
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/**
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* Updates the list of ongoing sounds
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*/
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internalUpdateOngoingSounds() {
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const now = this.root.time.realtimeNow();
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for (let i = 0; i < this.playingSounds.length; ++i) {
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if (now - this.playingSounds[i] > avgSoundDurationSeconds) {
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this.playingSounds.splice(i, 1);
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i -= 1;
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}
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}
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}
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}
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