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import { Vector3 } from '../math/Vector3.js';
import { Quaternion } from '../math/Quaternion.js';
import { Clock } from '../core/Clock.js';
import { Object3D } from '../core/Object3D.js';
import { AudioContext } from './AudioContext.js';
const _position = /*@__PURE__*/ new Vector3();
const _quaternion = /*@__PURE__*/ new Quaternion();
const _scale = /*@__PURE__*/ new Vector3();
const _orientation = /*@__PURE__*/ new Vector3();
class AudioListener extends Object3D {
constructor() {
super();
this.type = 'AudioListener';
this.context = AudioContext.getContext();
this.gain = this.context.createGain();
this.gain.connect( this.context.destination );
this.filter = null;
this.timeDelta = 0;
// private
this._clock = new Clock();
}
getInput() {
return this.gain;
}
removeFilter() {
if ( this.filter !== null ) {
this.gain.disconnect( this.filter );
this.filter.disconnect( this.context.destination );
this.gain.connect( this.context.destination );
this.filter = null;
}
return this;
}
getFilter() {
return this.filter;
}
setFilter( value ) {
if ( this.filter !== null ) {
this.gain.disconnect( this.filter );
this.filter.disconnect( this.context.destination );
} else {
this.gain.disconnect( this.context.destination );
}
this.filter = value;
this.gain.connect( this.filter );
this.filter.connect( this.context.destination );
return this;
}
getMasterVolume() {
return this.gain.gain.value;
}
setMasterVolume( value ) {
this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
return this;
}
updateMatrixWorld( force ) {
super.updateMatrixWorld( force );
const listener = this.context.listener;
const up = this.up;
this.timeDelta = this._clock.getDelta();
this.matrixWorld.decompose( _position, _quaternion, _scale );
_orientation.set( 0, 0, - 1 ).applyQuaternion( _quaternion );
if ( listener.positionX ) {
// code path for Chrome (see #14393)
const endTime = this.context.currentTime + this.timeDelta;
listener.positionX.linearRampToValueAtTime( _position.x, endTime );
listener.positionY.linearRampToValueAtTime( _position.y, endTime );
listener.positionZ.linearRampToValueAtTime( _position.z, endTime );
listener.forwardX.linearRampToValueAtTime( _orientation.x, endTime );
listener.forwardY.linearRampToValueAtTime( _orientation.y, endTime );
listener.forwardZ.linearRampToValueAtTime( _orientation.z, endTime );
listener.upX.linearRampToValueAtTime( up.x, endTime );
listener.upY.linearRampToValueAtTime( up.y, endTime );
listener.upZ.linearRampToValueAtTime( up.z, endTime );
} else {
listener.setPosition( _position.x, _position.y, _position.z );
listener.setOrientation( _orientation.x, _orientation.y, _orientation.z, up.x, up.y, up.z );
}
}
}
export { AudioListener };