app/node_modules/@babylonjs/core/Audio/audioSceneComponent.js

import { Sound } from "./sound.js";
import { SoundTrack } from "./soundTrack.js";
import { Engine } from "../Engines/engine.js";
import { Matrix, Vector3 } from "../Maths/math.vector.js";
import { SceneComponentConstants } from "../sceneComponent.js";
import { Scene } from "../scene.js";
import { AbstractScene } from "../abstractScene.js";
import "./audioEngine.js";
import { PrecisionDate } from "../Misc/precisionDate.js";
import { EngineStore } from "../Engines/engineStore.js";
// Adds the parser to the scene parsers.
AbstractScene.AddParser(SceneComponentConstants.NAME_AUDIO, (parsedData, scene, container, rootUrl) => {
    // TODO: add sound
    let loadedSounds = [];
    let loadedSound;
    container.sounds = container.sounds || [];
    if (parsedData.sounds !== undefined && parsedData.sounds !== null) {
        for (let index = 0, cache = parsedData.sounds.length; index < cache; index++) {
            const parsedSound = parsedData.sounds[index];
            if (Engine.audioEngine?.canUseWebAudio) {
                if (!parsedSound.url) {
                    parsedSound.url = parsedSound.name;
                }
                if (!loadedSounds[parsedSound.url]) {
                    loadedSound = Sound.Parse(parsedSound, scene, rootUrl);
                    loadedSounds[parsedSound.url] = loadedSound;
                    container.sounds.push(loadedSound);
                }
                else {
                    container.sounds.push(Sound.Parse(parsedSound, scene, rootUrl, loadedSounds[parsedSound.url]));
                }
            }
            else {
                container.sounds.push(new Sound(parsedSound.name, null, scene));
            }
        }
    }
    loadedSounds = [];
});
Object.defineProperty(Scene.prototype, "mainSoundTrack", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        if (!this._mainSoundTrack) {
            this._mainSoundTrack = new SoundTrack(this, { mainTrack: true });
        }
        return this._mainSoundTrack;
    },
    enumerable: true,
    configurable: true,
});
Scene.prototype.getSoundByName = function (name) {
    let index;
    for (index = 0; index < this.mainSoundTrack.soundCollection.length; index++) {
        if (this.mainSoundTrack.soundCollection[index].name === name) {
            return this.mainSoundTrack.soundCollection[index];
        }
    }
    if (this.soundTracks) {
        for (let sdIndex = 0; sdIndex < this.soundTracks.length; sdIndex++) {
            for (index = 0; index < this.soundTracks[sdIndex].soundCollection.length; index++) {
                if (this.soundTracks[sdIndex].soundCollection[index].name === name) {
                    return this.soundTracks[sdIndex].soundCollection[index];
                }
            }
        }
    }
    return null;
};
Object.defineProperty(Scene.prototype, "audioEnabled", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        return compo.audioEnabled;
    },
    set: function (value) {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        if (value) {
            compo.enableAudio();
        }
        else {
            compo.disableAudio();
        }
    },
    enumerable: true,
    configurable: true,
});
Object.defineProperty(Scene.prototype, "headphone", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        return compo.headphone;
    },
    set: function (value) {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        if (value) {
            compo.switchAudioModeForHeadphones();
        }
        else {
            compo.switchAudioModeForNormalSpeakers();
        }
    },
    enumerable: true,
    configurable: true,
});
Object.defineProperty(Scene.prototype, "audioListenerPositionProvider", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        return compo.audioListenerPositionProvider;
    },
    set: function (value) {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        if (value && typeof value !== "function") {
            throw new Error("The value passed to [Scene.audioListenerPositionProvider] must be a function that returns a Vector3");
        }
        else {
            compo.audioListenerPositionProvider = value;
        }
    },
    enumerable: true,
    configurable: true,
});
Object.defineProperty(Scene.prototype, "audioListenerRotationProvider", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        return compo.audioListenerRotationProvider;
    },
    set: function (value) {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        if (value && typeof value !== "function") {
            throw new Error("The value passed to [Scene.audioListenerRotationProvider] must be a function that returns a Vector3");
        }
        else {
            compo.audioListenerRotationProvider = value;
        }
    },
    enumerable: true,
    configurable: true,
});
Object.defineProperty(Scene.prototype, "audioPositioningRefreshRate", {
    get: function () {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        return compo.audioPositioningRefreshRate;
    },
    set: function (value) {
        let compo = this._getComponent(SceneComponentConstants.NAME_AUDIO);
        if (!compo) {
            compo = new AudioSceneComponent(this);
            this._addComponent(compo);
        }
        compo.audioPositioningRefreshRate = value;
    },
    enumerable: true,
    configurable: true,
});
/**
 * Defines the sound scene component responsible to manage any sounds
 * in a given scene.
 */
export class AudioSceneComponent {
    /**
     * Gets whether audio is enabled or not.
     * Please use related enable/disable method to switch state.
     */
    get audioEnabled() {
        return this._audioEnabled;
    }
    /**
     * Gets whether audio is outputting to headphone or not.
     * Please use the according Switch methods to change output.
     */
    get headphone() {
        return this._headphone;
    }
    /**
     * Creates a new instance of the component for the given scene
     * @param scene Defines the scene to register the component in
     */
    constructor(scene) {
        /**
         * The component name helpful to identify the component in the list of scene components.
         */
        this.name = SceneComponentConstants.NAME_AUDIO;
        this._audioEnabled = true;
        this._headphone = false;
        /**
         * Gets or sets a refresh rate when using 3D audio positioning
         */
        this.audioPositioningRefreshRate = 500;
        /**
         * Gets or Sets a custom listener position for all sounds in the scene
         * By default, this is the position of the first active camera
         */
        this.audioListenerPositionProvider = null;
        /**
         * Gets or Sets a custom listener rotation for all sounds in the scene
         * By default, this is the rotation of the first active camera
         */
        this.audioListenerRotationProvider = null;
        this._cachedCameraDirection = new Vector3();
        this._cachedCameraPosition = new Vector3();
        this._lastCheck = 0;
        this._invertMatrixTemp = new Matrix();
        this._cameraDirectionTemp = new Vector3();
        scene = scene || EngineStore.LastCreatedScene;
        if (!scene) {
            return;
        }
        this.scene = scene;
        scene.soundTracks = [];
        scene.sounds = [];
    }
    /**
     * Registers the component in a given scene
     */
    register() {
        this.scene._afterRenderStage.registerStep(SceneComponentConstants.STEP_AFTERRENDER_AUDIO, this, this._afterRender);
    }
    /**
     * Rebuilds the elements related to this component in case of
     * context lost for instance.
     */
    rebuild() {
        // Nothing to do here. (Not rendering related)
    }
    /**
     * Serializes the component data to the specified json object
     * @param serializationObject The object to serialize to
     */
    serialize(serializationObject) {
        serializationObject.sounds = [];
        if (this.scene.soundTracks) {
            for (let index = 0; index < this.scene.soundTracks.length; index++) {
                const soundtrack = this.scene.soundTracks[index];
                for (let soundId = 0; soundId < soundtrack.soundCollection.length; soundId++) {
                    serializationObject.sounds.push(soundtrack.soundCollection[soundId].serialize());
                }
            }
        }
    }
    /**
     * Adds all the elements from the container to the scene
     * @param container the container holding the elements
     */
    addFromContainer(container) {
        if (!container.sounds) {
            return;
        }
        container.sounds.forEach((sound) => {
            sound.play();
            sound.autoplay = true;
            this.scene.mainSoundTrack.addSound(sound);
        });
    }
    /**
     * Removes all the elements in the container from the scene
     * @param container contains the elements to remove
     * @param dispose if the removed element should be disposed (default: false)
     */
    removeFromContainer(container, dispose = false) {
        if (!container.sounds) {
            return;
        }
        container.sounds.forEach((sound) => {
            sound.stop();
            sound.autoplay = false;
            this.scene.mainSoundTrack.removeSound(sound);
            if (dispose) {
                sound.dispose();
            }
        });
    }
    /**
     * Disposes the component and the associated resources.
     */
    dispose() {
        const scene = this.scene;
        if (scene._mainSoundTrack) {
            scene.mainSoundTrack.dispose();
        }
        if (scene.soundTracks) {
            for (let scIndex = 0; scIndex < scene.soundTracks.length; scIndex++) {
                scene.soundTracks[scIndex].dispose();
            }
        }
    }
    /**
     * Disables audio in the associated scene.
     */
    disableAudio() {
        const scene = this.scene;
        this._audioEnabled = false;
        if (Engine.audioEngine && Engine.audioEngine.audioContext) {
            Engine.audioEngine.audioContext.suspend();
        }
        let i;
        for (i = 0; i < scene.mainSoundTrack.soundCollection.length; i++) {
            scene.mainSoundTrack.soundCollection[i].pause();
        }
        if (scene.soundTracks) {
            for (i = 0; i < scene.soundTracks.length; i++) {
                for (let j = 0; j < scene.soundTracks[i].soundCollection.length; j++) {
                    scene.soundTracks[i].soundCollection[j].pause();
                }
            }
        }
    }
    /**
     * Enables audio in the associated scene.
     */
    enableAudio() {
        const scene = this.scene;
        this._audioEnabled = true;
        if (Engine.audioEngine && Engine.audioEngine.audioContext) {
            Engine.audioEngine.audioContext.resume();
        }
        let i;
        for (i = 0; i < scene.mainSoundTrack.soundCollection.length; i++) {
            if (scene.mainSoundTrack.soundCollection[i].isPaused) {
                scene.mainSoundTrack.soundCollection[i].play();
            }
        }
        if (scene.soundTracks) {
            for (i = 0; i < scene.soundTracks.length; i++) {
                for (let j = 0; j < scene.soundTracks[i].soundCollection.length; j++) {
                    if (scene.soundTracks[i].soundCollection[j].isPaused) {
                        scene.soundTracks[i].soundCollection[j].play();
                    }
                }
            }
        }
    }
    /**
     * Switch audio to headphone output.
     */
    switchAudioModeForHeadphones() {
        const scene = this.scene;
        this._headphone = true;
        scene.mainSoundTrack.switchPanningModelToHRTF();
        if (scene.soundTracks) {
            for (let i = 0; i < scene.soundTracks.length; i++) {
                scene.soundTracks[i].switchPanningModelToHRTF();
            }
        }
    }
    /**
     * Switch audio to normal speakers.
     */
    switchAudioModeForNormalSpeakers() {
        const scene = this.scene;
        this._headphone = false;
        scene.mainSoundTrack.switchPanningModelToEqualPower();
        if (scene.soundTracks) {
            for (let i = 0; i < scene.soundTracks.length; i++) {
                scene.soundTracks[i].switchPanningModelToEqualPower();
            }
        }
    }
    _afterRender() {
        const now = PrecisionDate.Now;
        if (this._lastCheck && now - this._lastCheck < this.audioPositioningRefreshRate) {
            return;
        }
        this._lastCheck = now;
        const scene = this.scene;
        if (!this._audioEnabled || !scene._mainSoundTrack || !scene.soundTracks || (scene._mainSoundTrack.soundCollection.length === 0 && scene.soundTracks.length === 1)) {
            return;
        }
        const audioEngine = Engine.audioEngine;
        if (!audioEngine) {
            return;
        }
        if (audioEngine.audioContext) {
            let listeningCamera = scene.activeCamera;
            if (scene.activeCameras && scene.activeCameras.length > 0) {
                listeningCamera = scene.activeCameras[0];
            }
            // A custom listener position provider was set
            // Use the users provided position instead of camera's
            if (this.audioListenerPositionProvider) {
                const position = this.audioListenerPositionProvider();
                // Set the listener position
                audioEngine.audioContext.listener.setPosition(position.x || 0, position.y || 0, position.z || 0);
                // Check if there is a listening camera
            }
            else if (listeningCamera) {
                // Set the listener position to the listening camera global position
                if (!this._cachedCameraPosition.equals(listeningCamera.globalPosition)) {
                    this._cachedCameraPosition.copyFrom(listeningCamera.globalPosition);
                    audioEngine.audioContext.listener.setPosition(listeningCamera.globalPosition.x, listeningCamera.globalPosition.y, listeningCamera.globalPosition.z);
                }
            }
            // Otherwise set the listener position to 0, 0 ,0
            else {
                // Set the listener position
                audioEngine.audioContext.listener.setPosition(0, 0, 0);
            }
            // A custom listener rotation provider was set
            // Use the users provided rotation instead of camera's
            if (this.audioListenerRotationProvider) {
                const rotation = this.audioListenerRotationProvider();
                audioEngine.audioContext.listener.setOrientation(rotation.x || 0, rotation.y || 0, rotation.z || 0, 0, 1, 0);
                // Check if there is a listening camera
            }
            else if (listeningCamera) {
                // for VR cameras
                if (listeningCamera.rigCameras && listeningCamera.rigCameras.length > 0) {
                    listeningCamera = listeningCamera.rigCameras[0];
                }
                listeningCamera.getViewMatrix().invertToRef(this._invertMatrixTemp);
                Vector3.TransformNormalToRef(AudioSceneComponent._CameraDirection, this._invertMatrixTemp, this._cameraDirectionTemp);
                this._cameraDirectionTemp.normalize();
                // To avoid some errors on GearVR
                if (!isNaN(this._cameraDirectionTemp.x) && !isNaN(this._cameraDirectionTemp.y) && !isNaN(this._cameraDirectionTemp.z)) {
                    if (!this._cachedCameraDirection.equals(this._cameraDirectionTemp)) {
                        this._cachedCameraDirection.copyFrom(this._cameraDirectionTemp);
                        audioEngine.audioContext.listener.setOrientation(this._cameraDirectionTemp.x, this._cameraDirectionTemp.y, this._cameraDirectionTemp.z, 0, 1, 0);
                    }
                }
            }
            // Otherwise set the listener rotation to 0, 0 ,0
            else {
                // Set the listener position
                audioEngine.audioContext.listener.setOrientation(0, 0, 0, 0, 1, 0);
            }
            let i;
            for (i = 0; i < scene.mainSoundTrack.soundCollection.length; i++) {
                const sound = scene.mainSoundTrack.soundCollection[i];
                if (sound.useCustomAttenuation) {
                    sound.updateDistanceFromListener();
                }
            }
            if (scene.soundTracks) {
                for (i = 0; i < scene.soundTracks.length; i++) {
                    for (let j = 0; j < scene.soundTracks[i].soundCollection.length; j++) {
                        const sound = scene.soundTracks[i].soundCollection[j];
                        if (sound.useCustomAttenuation) {
                            sound.updateDistanceFromListener();
                        }
                    }
                }
            }
        }
    }
}
AudioSceneComponent._CameraDirection = new Vector3(0, 0, -1);
Sound._SceneComponentInitialization = (scene) => {
    let compo = scene._getComponent(SceneComponentConstants.NAME_AUDIO);
    if (!compo) {
        compo = new AudioSceneComponent(scene);
        scene._addComponent(compo);
    }
};
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