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Waves/js/index.js
robinszym dabf5f0677
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2019-01-10 11:39:12 +01:00

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JavaScript
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const micro_height=100;
const micro_width=100;
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
const SPEED= 50;
const AMPLITUDE=50;
const SIZE=1;
const NP=10;
const rigi=5;
const krigi=0.9;
const CLAMPED=1;
var DAMP=0.05;
var firstMic = 1;
var myId = 0;
var nbMicro = 0;
var l=Math.floor(canvas.height/NP); //length of a row
var midl=Math.pow(l,2)/2-l/2;
var r=1;
var redstyle=0;
var bluestyle= 0;
var tempx,tempy,tempvx,tempvy,i,b,j,k,f,v,vunx,vuny,vdeuxx,vdeuxy,diffun,diffdeux,average,self,start, mousedown,press,radioval,firstmic=0;
var tab=[];
var tabuffer=[];
var previoustab=[];
var tabtaken=[];
var tabsin=[];
frequency=document.querySelector("#freq");
amplitude=document.querySelector("#gain");
DB=document.querySelector("#db");
damping=document.querySelector("#damp");
//////////////INITIALISATION////////
function initialisation() {
console.log("initialisation");
for (i=0;i<Math.floor( canvas.height/NP);i++){
for (j=0;j<Math.floor(canvas.width/NP);j++){
addNewPart(i,j);
}
}
}
function addNewPart(x,y){
tab.push({ x:(x*NP),y:(y*NP),z:SIZE,active:1,v:0});
tabuffer.push({ x:(x*NP),y:(y*NP),z:SIZE});
previoustab.push({ x:(x*NP),y:(y*NP),z:SIZE});
}
///////////ENGINE////////////////////
function engine(){
setSin();
//setMics();
var m=0;
for (m=0;m<r;m++){
nextStep();
}
render();
}
function setSin(){
for (i=0;i<tabsin.length;i++)
{
tab[tabsin[i].i].v=tabsin[i].valueUpdate();
tabsin[i].step++;
}
}
function setMic(i,a){
tab[i].v+=
tab[i+l].v+=
amplitude.value*(a-DB.value)/100;
//tab[i-l].v+= amplitude.value*(a-DB.value)/100;
}
function taken(i){
var u=0;
for(u=0;u<tabtaken.length;u++)
{
if (tabtaken[i]===i){return 1}
}
return 0;
}
function addSin(i){
var u=0;
if (taken(i)){
return;
}
else{
let sin= new Sin(210-frequency.value,amplitude.value,i);
console.log("sin :",sin.valueUpdate());
tabtaken.push(i);
tabsin.push(sin);
}
}
function Sin(freq,amp,i){
this.i=i;
this.step=0;
this.amp=amp;
this.freq=freq;
this.valueUpdate= function(){
return (Math.cos(((this.step/this.freq)*2*Math.PI))*this.amp);
this.step++;};
//console.log((Math.cos(((this.step/this.freq)*2*Math.PI))*this.amp));
}
function nextStep (){
var act,temp,spd,d,self=0
for(i=0;i<tab.length;i++)
{
self=tab[i].z;
if(i>l&&i&& i%l && (i%l)-l+1 && i<l*(l-1)){
act=tab[i+l].active+tab[i-l].active
+tab[i-1].active+tab[i+1].active;
if(!act){act=1}
// temp=(up(i)+down(i)+left(i)+right(i))*(rigi-1)/(act*rigi)+(tab[i].z)*1/rigi
d=(self*4-(up(i)+down(i)+left(i)+right(i)))/4;
spd=tab[i].v-krigi*d-tab[i].v*DAMP;
temp=spd+tab[i].z;
;
tabuffer[i].z=temp;
tab[i].v=spd;
}
else{disable(i);
temp=0;
switch (i) {
case 0:{
temp=down(i)+right(i);
if (!temp){temp=SIZE;}
act=tab[i+l].active+tab[i+1].active;
}break;
case l-1:{
temp=up(i)+right(i)
if (!temp){temp=SIZE;}
act=tab[i+l].active+tab[i-1].active;
}break;
case tab.length-l:{
temp=down(i)+left(i);
if (!temp){temp=SIZE;}
act=tab[i-l].active+tab[i+1].active;
}break;
case tab.length-1:{
temp=up(i)+left(i);
if (!temp){temp=SIZE;}
}
}
if (temp){
if(CLAMPED){
temp=SIZE;
}
else{
temp=temp*(rigi-1)/(act*rigi)+(tab[i].z)*1/rigi;
}
}
else {
if (((i%l)-l+1)===0&&i){
temp=up(i)+right(i)+left(i);
act=tab[i+l].active+tab[i-l].active
+tab[i-1].active;
}
if(i%l===0&&i!==l&&i){
temp=right(i)+down(i)+left(i);
act=tab[i+l].active+tab[i-l].active
+tab[i+1].active;
}
if(i<l*l-1&&i>l*l-l-1){
temp=up(i)+down(i)+left(i);
act=tab[i-l].active
+tab[i-1].active+tab[i+1].active;
}
if(i<l&&i>0){
temp=up(i)+down(i)+right(i);
act=tab[i+l].active+tab[i-1].active+tab[i+1].active;
}
if(!act){act=1}
temp=(temp*(rigi-1)/(act*rigi)+(tab[i].z)*1/rigi)/2;
temp+=previoustab[i].z*1/2;
previoustab[i].z=temp;
}
tabuffer[i].z=temp;
}
}
for(i=0;i<tab.length;i++)
{
tab[i].z=tabuffer[i].z
}
}
function down(i){
return tab[i+1].z*tab[i+1].active;}
function up(i){
return tab[i-1].z*tab[i-1].active;}
function left(i){
return tab[i-l].z*tab[i-l].active;}
function right(i){
return tab[i+l].z*tab[i+l].active;}
function disable(a){
tab[a].active=0;
}
function unable(a){
tab[a].active=1;
}
function toggle(a){
tab[a].active ? tab[a].active=0:tab[a].active=1;
}
function makeWave(e){
if (press){
var x = event.pageX - elemLeft,
y = event.pageY - elemTop;
console.log("i move in make wave");
if (ielement(x,y)!=b){
wave(x,y)}
b=ielement(x,y);
}
}
function wave(x,y){
tab[ielement(x,y)].v+=-SPEED;
}
function clear(){
removeMicro();
tabsin=[];
}
////////////CLICK////////////////////
var elemLeft = canvas.offsetLeft,
elemTop = canvas.offsetTop,
context = canvas.getContext('2d'),
elements = [];
onmousemove = function(e){
switch (radioval){
case "Mic":{
};break;
case "Wall":{wallMaker(e)
};break;
case "Wave":{makeWave(e);
console.log(radioval);
};break;
// case "Nothing":{};break;
}
}
//onmousemove = wallMaker(e);
damping.oninput = function() {
DAMP= this.value;
};
canvas.addEventListener('mouseup', function(event) {
press=0;
firstmic=0;
}, false);
canvas.addEventListener('mousedown', function(event) {
console.log("click");
press=1;
var temp=0;
var x = event.pageX - elemLeft,
y = event.pageY - elemTop;
//switch ()
for(i=0;i<radio.length;i++){
if (radio[i].checked){
temp=radio[i].value;
}
radioval=temp;
switch (temp){
case "Mic":{
addMicro(x,y)
};break;
case "Wall":{
};break;
case "Wave":{makeWave(event);};break;
case "Sin":{
addSin(ielement(x,y));
}
// case "Nothing":{};break;
}
}
}, false);
var btn = document.getElementById('startbtn');
var radio = document.getElementById('radio');
var clr = document.getElementById('clear');
btn.addEventListener('click', getSound);
clr.addEventListener('click',clear);
function startMachine(){
start ? start=0 : start=1;
if (start){getSound}
}
function toggleSend(){
send ? send=0 : send=1;
}
////////////////WALLS////////////////////////
function wallMaker(event){
if (press){
var x = event.pageX - elemLeft,
y = event.pageY - elemTop;
if (ielement(x,y)!=b){
makeWall(x,y)}
b=ielement(x,y);
}
}
function makeWall(x,y){
toggle(ielement(x,y));
window.requestAnimationFrame(render);
console.log("i made a wall",ielement(x,y) );
}
function ielement(x,y){
var temp=Math.round((x/NP))*l+Math.round(y/NP);
if (temp<tab.length&&temp>0){
return temp;
}
else {return midl};
}
////////////RENDER///////////////////
function render(){
var xsize,ysize,xpos,ypos=10;
var up,right,diag=0;
var r,g,b,avr=0;
ctx.clearRect(0, 0, canvas.width, canvas.height);
for(i=0;i<tab.length;i++){
if(i){
ctx.beginPath();
up=tab[i-1];
right=tab[i+l];
diag=tab[i-1+l];
}
if(tab[i].active){
if(tab[i].z<=0){//downhill value
b=126;
r=0;
g=-256*tab[i].z/200;
if (g<0){g*=-1;}
ctx.fillStyle='rgb(' + r +', ' + g + ',' + b + ','+ 0.95 + ')';
xsize=SIZE;
ysize=SIZE;
ctx.moveTo(tab[i].x , tab[i].y-tab[i].z/2);
ctx.lineTo(up.x, up.y-up.z/2);
ctx.lineTo(diag.x, diag.y-diag.z/2);
ctx.lineTo(right.x, right.y-right.z/2);
ctx.closePath();
ctx.fill();
}
else{//uphill value
avr=tab[i].z+up.z+diag.z+right.z;
avr*=1/4;
b=125;
r=256*avr/100;
g=0;
if (g<0){g*=-1;}
ctx.fillStyle='rgb(' + r +', '
+ g + ',' + b + ','+1 +')';
xsize=SIZE;
ysize=SIZE;
ctx.moveTo(tab[i].x-xsize/4 , tab[i].y-tab[i].z/2);
ctx.lineTo(up.x, up.y-up.z/2);
ctx.lineTo(diag.x, diag.y-diag.z/2);
ctx.lineTo(right.x, right.y-right.z/2);
ctx.closePath();
ctx.fill();
}
}
else {
ctx.fillStyle='rgb(' + 250 +', '
+ 240 + ',' + 256 + ','+0+')';
ctx.fillRect(tab[i].x-2*SIZE , tab[i].y-2*SIZE, 4*SIZE,4*SIZE);//walls
}
}
ctx.stroke();
//ctx.fill();
}
////////////MAIN/////////////////////
function main(){
f=1;
v=1;
send=0;
console.log("main");
initialisation();
}
console.clear();
main();
/////////////AUDIO/////////////
navigator.getUserMedia = navigator.getUserMedia ||
navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia;
function getSound(){
if(navigator.getUserMedia){
navigator.mediaDevices.getUserMedia({audio : true})
.then(function(flux) {
audioContext = new AudioContext();
analyseur = audioContext.createAnalyser();
microphone = audioContext.createMediaStreamSource(flux);
javascriptNode = audioContext.createScriptProcessor(2048, 1, 1);
analyseur.fftSize = 1024;
microphone.connect(analyseur);
analyseur.connect(javascriptNode);
javascriptNode.connect(audioContext.destination);
javascriptNode.onaudioprocess = function() {
var tab = new Uint8Array(analyseur.frequencyBinCount);
analyseur.getByteFrequencyData(tab);
var values = 0;
for (var i = 0; i < tab.length; i++) {
values += (tab[i]);
}
average = values / tab.length;
setAverage(average);
if (firstMic){
engine();
}
/*
for(var i = 0; i < nbMicro; ++i){
//setAverage(i);
}
*/ // engine();
/*
if (send){
state.set(values / tab.length);
}*/
}
})
.catch(function(err) {
console.log("The following error occured: " + err.name);
});
}
}
/////////////FIREBASE////////////
var tabPersonne = firebase.database().ref('tabPersonne');
function addPersonneOnline(personne){
myId = tabPersonne.push(personne);
}
function addMicroOnline(micro){
var tabMicro = firebase.database().ref(myId);
micro.id = tabMicro.push(micro);
}
function removeMicroOnline(){
var p = firebase.database().ref(myId);
p.remove();
}
function setAverage(data){
var fb = firebase.database().ref(myId);
fb.once('value', function(snapshot) {
snapshot.forEach(function(child) {
//child.forEach(function(sousChild){
child.ref.update({
average : data
});
// });
});
});
}
function clearAll(){}
//Quitte la page
/*
var depart = firebase.database().ref(myId);
depart.onDisconnect().remove();
*/
var change = firebase.database().ref('tabPersonne');
change.on('value',newData);
function newData(data){
var fb = firebase.database().ref('tabPersonne');
fb.once('value', function(snapshot) {
snapshot.forEach(function(child) {
child.forEach(function(sousChild){
var content = sousChild.val();
setMic(content.i,content.average);
});
// });
});
});
engine();
}
///////////FONCTION ADD MAP
function addMicro(x,y){
var monMicro = new Object();
monMicro.x = x;
monMicro.y = y;
monMicro.i=ielement(x,y);
monMicro.average = 0;
if(firstMic === 0){
addMicroLocal(monMicro);
}else{
addPersonne(monMicro);
}
}
function removeMicro(){
for(var i = 0; i < nbMicro; ++i){
maPersonne[i] = null;
nbMicro = 0;
firstMic = 1;
removeMicroOnline();
}
}
var maPersonne = new Array();
function addPersonne(micro){
maPersonne.push(micro);
++nbMicro;
firstMic = 0;
addPersonneOnline(maPersonne);
}
function addMicroLocal(micro){
maPersonne[nbMicro] = micro;
++nbMicro;
addMicroOnline(micro);
}
function removeAllLocal(){
for(var i = 0; i < nbMicro;++i){
maPersonne[i] = null;
nbMicro = 0;
firstMic = 1;
}
var p = firebase.database().ref('tabPersonne');
p.remove();
}
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