assassin-bug/framework/resonator/scenes/webaudio-scene.js

43 lines
1.3 KiB
JavaScript

// The code that deals with 3d audio
import EventEmitter from 'eventemitter3';
import vec3 from '../../tsm/vec3';
export default class ResonatorScene extends EventEmitter {
constructor(context) {
super();
this.context = context;
this.scene = this.context.getContext().createGain();
this.listener = this.context.getContext().listener;
this.init();
}
init() {
// this.scene.output.connect(this.context.getOutputDestination());
}
createSource() {
const node = this.context.getContext().createPanner();
node.panningModel = 'HRTF';
node.distanceModel = 'linear';
node.maxDistance = 20;
node.refDistance = 2;
node.connect(this.scene);
return node;
}
getOutput() {
return this.scene;
}
getInput() {
return this.scene;
}
setListenerPosition(x, y, z) {
this.listener.setPosition(x, y, z);
}
setListenerOrientation(forward, rawup) {
let fwd = new vec3([forward.x, forward.y, forward.z]);
let up = fwd.copy();
vec3.cross(up, new vec3([rawup.x, rawup.y, rawup.z]), up);
vec3.cross(up, fwd, up);
fwd.normalize();
up.normalize();
this.listener.setOrientation(fwd.x, fwd.y, fwd.z, up.x, up.y, up.z);
}
}