146 lines
4.5 KiB
TypeScript
146 lines
4.5 KiB
TypeScript
import {getBulkInfo} from "./login.js";
|
|
|
|
class Voice{
|
|
audioCtx:AudioContext;
|
|
info:{wave:string|Function,freq:number};
|
|
playing:boolean;
|
|
myArrayBuffer:AudioBuffer;
|
|
gainNode:GainNode;
|
|
buffer:Float32Array;
|
|
source:AudioBufferSourceNode;
|
|
constructor(wave:string|Function,freq:number,volume=1){
|
|
this.audioCtx = new (window.AudioContext)();
|
|
this.info={wave:wave,freq:freq}
|
|
this.playing=false;
|
|
this.myArrayBuffer=this.audioCtx.createBuffer(
|
|
1,
|
|
this.audioCtx.sampleRate,
|
|
this.audioCtx.sampleRate,
|
|
);
|
|
this.gainNode = this.audioCtx.createGain();
|
|
this.gainNode.gain.value=volume;
|
|
this.gainNode.connect(this.audioCtx.destination);
|
|
this.buffer=this.myArrayBuffer.getChannelData(0);
|
|
this.source = this.audioCtx.createBufferSource();
|
|
this.source.buffer = this.myArrayBuffer;
|
|
this.source.loop=true;
|
|
this.source.start();
|
|
this.updateWave();
|
|
}
|
|
get wave():string|Function{
|
|
return this.info.wave;
|
|
}
|
|
get freq():number{
|
|
return this.info.freq;
|
|
}
|
|
set wave(wave:string|Function){
|
|
this.info.wave=wave;
|
|
this.updateWave();
|
|
}
|
|
set freq(freq:number){
|
|
this.info.freq=freq;
|
|
this.updateWave();
|
|
}
|
|
updateWave():void{
|
|
const func=this.waveFunction();
|
|
for (let i = 0; i < this.buffer.length; i++) {
|
|
this.buffer[i]=func(i/this.audioCtx.sampleRate,this.freq);
|
|
}
|
|
|
|
}
|
|
waveFunction():Function{
|
|
if(typeof this.wave === 'function'){
|
|
return this.wave;
|
|
}
|
|
switch(this.wave){
|
|
case "sin":
|
|
return (t:number,freq:number)=>{
|
|
return Math.sin(t*Math.PI*2*freq);
|
|
}
|
|
case "triangle":
|
|
return (t:number,freq:number)=>{
|
|
return Math.abs((4*t*freq)%4-2)-1;
|
|
}
|
|
case "sawtooth":
|
|
return (t:number,freq:number)=>{
|
|
return ((t*freq)%1)*2-1;
|
|
}
|
|
case "square":
|
|
return (t:number,freq:number)=>{
|
|
return (t*freq)%2<1?1:-1;
|
|
}
|
|
case "white":
|
|
return (_t:number,_freq:number)=>{
|
|
return Math.random()*2-1;
|
|
}
|
|
case "noise":
|
|
return (_t:number,_freq:number)=>{
|
|
return 0;
|
|
}
|
|
}
|
|
return new Function();
|
|
}
|
|
play():void{
|
|
if(this.playing){
|
|
return;
|
|
}
|
|
this.source.connect(this.gainNode);
|
|
this.playing=true;
|
|
|
|
}
|
|
stop():void{
|
|
if(this.playing){
|
|
this.source.disconnect();
|
|
this.playing=false;
|
|
}
|
|
}
|
|
static noises(noise:string):void{
|
|
switch(noise){
|
|
case "three":{
|
|
const voicy=new Voice("sin",800);
|
|
voicy.play();
|
|
setTimeout(_=>{voicy.freq=1000},50);
|
|
setTimeout(_=>{voicy.freq=1300},100);
|
|
setTimeout(_=>{voicy.stop()},150);
|
|
break;
|
|
}
|
|
case "zip":{
|
|
const voicy=new Voice((t:number,freq:number)=>{
|
|
return Math.sin(((t+2)**(Math.cos(t*4)))*Math.PI*2*freq);
|
|
},700);
|
|
voicy.play();
|
|
setTimeout(_=>{voicy.stop()},150);
|
|
break;
|
|
}
|
|
case "square":{
|
|
const voicy=new Voice("square",600,.4);
|
|
voicy.play()
|
|
setTimeout(_=>{voicy.freq=800},50);
|
|
setTimeout(_=>{voicy.freq=1000},100);
|
|
setTimeout(_=>{voicy.stop()},150);
|
|
break;
|
|
}
|
|
case "beep":{
|
|
const voicy=new Voice("sin",800);
|
|
voicy.play();
|
|
setTimeout(_=>{voicy.stop()},50);
|
|
setTimeout(_=>{voicy.play();},100);
|
|
setTimeout(_=>{voicy.stop()},150);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
static get sounds(){
|
|
return ["three","zip","square","beep"];
|
|
}
|
|
static setNotificationSound(sound:string){
|
|
let userinfos=getBulkInfo();
|
|
userinfos.preferences.notisound=sound;
|
|
localStorage.setItem("userinfos",JSON.stringify(userinfos));
|
|
}
|
|
static getNotificationSound(){
|
|
let userinfos=getBulkInfo();
|
|
return userinfos.preferences.notisound;
|
|
}
|
|
}
|
|
export {Voice as Voice};
|