Babylon.js/Babylon/Audio/babylon.soundtrack.js

var BABYLON;
(function (BABYLON) {
    var SoundTrack = (function () {
        function SoundTrack(scene, options) {
            this.id = -1;
            this._isMainTrack = false;
            this._scene = scene;
            this._audioEngine = BABYLON.Engine.audioEngine;
            this.soundCollection = new Array();
            if (this._audioEngine.canUseWebAudio) {
                this._trackGain = this._audioEngine.audioContext.createGain();
                this._trackGain.connect(this._audioEngine.masterGain);
                if (options) {
                    if (options.volume) {
                        this._trackGain.gain.value = options.volume;
                    }
                    if (options.mainTrack) {
                        this._isMainTrack = options.mainTrack;
                    }
                }
            }
            if (!this._isMainTrack) {
                this._scene.soundTracks.push(this);
                this.id = this._scene.soundTracks.length - 1;
            }
        }
        SoundTrack.prototype.dispose = function () {
            if (this._audioEngine.canUseWebAudio) {
                if (this._connectedAnalyser) {
                    this._connectedAnalyser.stopDebugCanvas();
                }
                while (this.soundCollection.length) {
                    this.soundCollection[0].dispose();
                }
                this._trackGain.disconnect();
                this._trackGain = null;
            }
        };
        SoundTrack.prototype.AddSound = function (sound) {
            if (BABYLON.Engine.audioEngine.canUseWebAudio) {
                sound.connectToSoundTrackAudioNode(this._trackGain);
            }
            if (sound.soundTrackId) {
                if (sound.soundTrackId === -1) {
                    this._scene.mainSoundTrack.RemoveSound(sound);
                }
                else {
                    this._scene.soundTracks[sound.soundTrackId].RemoveSound(sound);
                }
            }
            this.soundCollection.push(sound);
            sound.soundTrackId = this.id;
        };
        SoundTrack.prototype.RemoveSound = function (sound) {
            var index = this.soundCollection.indexOf(sound);
            if (index !== -1) {
                this.soundCollection.splice(index, 1);
            }
        };
        SoundTrack.prototype.setVolume = function (newVolume) {
            if (this._audioEngine.canUseWebAudio) {
                this._trackGain.gain.value = newVolume;
            }
        };
        SoundTrack.prototype.switchPanningModelToHRTF = function () {
            if (BABYLON.Engine.audioEngine.canUseWebAudio) {
                for (var i = 0; i < this.soundCollection.length; i++) {
                    this.soundCollection[i].switchPanningModelToHRTF();
                }
            }
        };
        SoundTrack.prototype.switchPanningModelToEqualPower = function () {
            if (BABYLON.Engine.audioEngine.canUseWebAudio) {
                for (var i = 0; i < this.soundCollection.length; i++) {
                    this.soundCollection[i].switchPanningModelToEqualPower();
                }
            }
        };
        SoundTrack.prototype.connectToAnalyser = function (analyser) {
            if (this._connectedAnalyser) {
                this._connectedAnalyser.stopDebugCanvas();
            }
            this._connectedAnalyser = analyser;
            if (this._audioEngine.canUseWebAudio) {
                this._trackGain.disconnect();
                this._connectedAnalyser.connectAudioNodes(this._trackGain, this._audioEngine.masterGain);
            }
        };
        return SoundTrack;
    })();
    BABYLON.SoundTrack = SoundTrack;
})(BABYLON || (BABYLON = {}));
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