var audio;
var playlist;
var tracks;
var current;
var mbuttonstate=0;
var plistshown=true;
var shuffle=0,repeat=0;
var plistRect;
var dpiratio=window.devicePixelRatio?window.devicePixelRatio:1;

var audioCtxt=null;
var CtxtSource=null;
var CtxtAnalyser=null;
var canvas;
var CSpectrum=1024,CSpectrumIF=128;
var SpecWidth=0.7,SpecGap=0.08125;
var caps=[];
var visualselector=null;
var SpecRingRadius=225;
var spectrogrampos=0;
var inkimg=[];
var f1=0,f2=0,penv=0,btrig=0,beatp=0,lastbp=0;
var lpbd=300,lpf=1./(2*Math.PI*lpbd),beatr=0.02;
var frms=0,lastfpsupd=null,fps=0;
var ic1=["#FF3333","#FF8800","#FFFF00","#CCFF00","#33CCFF","#0000FF","#9966FF"];
var ic2=["rgba(204,51,51,0.6)","rgba(187,85,0,0.6)","rgba(255,204,0,0.6)","rgba(153,204,0,0.6)","rgba(51,153,255,0.6)","rgba(0,0,102,0.6)","rgba(153,51,204,0.6)"]
var Ink=function(_vx,_vy,_c)
{
	this.x=canvas.width/2;this.y=canvas.height/2;
	this.vx=_vx;this.vy=_vy;
	this.color=_c>6?6:_c;this.active=true;
};
Ink.prototype.update=function()
{
	this.x+=this.vx;this.y+=this.vy;
	this.vx*=0.995;this.vy*=0.995;
	if(this.x<-10||this.x>canvas.width+10||this.y<-10||this.y>canvas.height+10)
	this.active=false;
}
Ink.prototype.draw=function(cctx)
{
	cctx.drawImage(inkimg[this.color],this.x+5*window.devicePixelRatio,this.y+5*window.devicePixelRatio);
}
var inks=[];
function inkPrepare()
{
	for(var i=0;i<7;++i)
	{
		inkimg[i]=document.createElement('canvas');
		inkimg[i].width=inkimg[i].height=10*window.devicePixelRatio;
		var cctx=inkimg[i].getContext('2d');
		cctx.fillStyle=ic1[i];
		cctx.beginPath();
		cctx.arc(5*window.devicePixelRatio,5*window.devicePixelRatio,3*window.devicePixelRatio,0,2*Math.PI);
		cctx.fill();
		cctx.fillStyle=ic2[i];
		cctx.beginPath();
		cctx.arc(5*window.devicePixelRatio,5*window.devicePixelRatio,5*window.devicePixelRatio,0,2*Math.PI);
		cctx.fill();
	}
}
function createInk(_vx,_vy,_c1,_c2)
{
	var f=false;
	for(var i=0;i<inks.length;++i)
	{
		if(!inks[i].active)
		{inks[i]=new Ink(_vx,_vy,_c1,_c2);f=true;break;}
	}
	if(!f&&inks.length<512)inks.push(new Ink(_vx,_vy,_c1,_c2));
}

function gup(name,url)
{
	if(!url)url=location.href;
	name=name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
	var regexS="[\\?&]"+name+"=([^&#]*)";
	var regex=new RegExp(regexS);
	var results=regex.exec(url);
	return results==null?null:results[1];
}
function getcookie(key)
{return document.cookie.replace(new RegExp("(?:(?:^|.*;\\s*)"+key+"\\s*\\=\\s*([^;]*).*$)|^.*$"),"$1");}

function initAPI()
{
	window.AudioContext=window.AudioContext||window.webkitAudioContext||window.mozAudioContext||window.msAudioContext;
	window.requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame;
	window.cancelAnimationFrame=window.cancelAnimationFrame||window.webkitCancelAnimationFrame||window.mozCancelAnimationFrame||window.msCancelAnimationFrame;
	audioCtxt=new AudioContext;
	CtxtSource=audioCtxt.createBufferSource();
	CtxtAnalyser=audioCtxt.createAnalyser();
	CtxtAnalyser.fftSize=2*CSpectrum;
	for(var i=0;i<CSpectrum;++i)caps[i]=0;
}

function init()
{
	if( navigator.userAgent.match(/Android/i)
 || navigator.userAgent.match(/webOS/i)
 || navigator.userAgent.match(/iPhone/i)
 || navigator.userAgent.match(/iPad/i)
 || navigator.userAgent.match(/iPod/i)
 || navigator.userAgent.match(/BlackBerry/i)
 || navigator.userAgent.match(/Windows Phone/i)
 )
	{
		visualselector=document.getElementById("playlist").style.width="90%";
		document.getElementById("help").style.maxWidth=window.innerWidth+"px";
		if(window.innerWidth<window.innerHeight)
		document.getElementById("cvs").width=screen.width*0.98,
		document.getElementById("cvs").height=(screen.width*0.98/16*9);
		else
		document.getElementById("cvs").width=(screen.height*0.98/9*16),
		document.getElementById("cvs").height=screen.height*0.98;
	}
	if(!window.devicePixelRatio)window.devicePixelRatio=1;
	document.getElementById("cvs").style.width=document.getElementById("cvs").width+"px";
	document.getElementById("cvs").style.height=document.getElementById("cvs").height+"px";
	document.getElementById("cvs").width=document.getElementById("cvs").width*window.devicePixelRatio;
	document.getElementById("cvs").height=document.getElementById("cvs").height*window.devicePixelRatio;
	current=0;
	visualselector=document.getElementById("visualizationsel");
	canvas=document.getElementById("cvs");
	audio=document.getElementById("audio");
	playlist=$('#playlist');
	tracks=playlist.find('li a');
	len=tracks.length;SpecRingRadius=canvas.width/2;
	audio.volume=.80;SpecWidth=canvas.width/CSpectrum;SpecGap=SpecWidth/10;SpecWidth*=0.9;
	initAPI();inkPrepare();document.onmousemove=mm;
	CtxtSource=audioCtxt.createMediaElementSource(audio);
	CtxtSource.connect(CtxtAnalyser);
	CtxtAnalyser.connect(audioCtxt.destination);
	plistRect=document.getElementById("playlist").getBoundingClientRect();
	for(var i=0;i<playlist.find('a').length;++i)
	{
		if(playlist.find('a')[i].textContent==decodeURIComponent(gup('title')))
		{current=i;run($(playlist.find('a')[i]));break;}
	}
	playlist.find('a').click(function(e){
		e.preventDefault();
		link=$(this);
		current=link.parent().index()-1;
		run(link);
	});
	visualselector.onchange=function(){
		if(this.value!="none"&&this.oldvalue=="none")requestAnimationFrame(updateVisualization);
		else canvas.getContext('2d').clearRect(0,0,canvas.width,canvas.height);
		document.cookie="playervisualization="+this.value;
		this.oldvalue=this.value;
	};
	window.onresize=windowresize;
	audio.ontimeupdate=timeUpdate;
	audio.addEventListener('ended',function(e){
		if(repeat==0)
		{
			current++;
			if(current==len){
				current=0;
				if(shuffle)shufflePlist();
				link=playlist.find('a')[0];
			}else{
				link=playlist.find('a')[current];
			}
			run($(link));
		}
	});
	document.getElementById("shufflesw").onclick=function(){
		shuffle=1-shuffle;
		if(shuffle==0)
		{
			document.getElementById("shufflesw").innerHTML="Off";
			document.cookie="playershuffle=0";
			sortPlist();
		}
		else
		{
			document.getElementById("shufflesw").innerHTML="On";
			document.cookie="playershuffle=1";
			shufflePlist();
		}
	}
	document.getElementById("repeatsw").onclick=function(){
		repeat=1-repeat;
		if(repeat==0)
		{
			document.getElementById("repeatsw").innerHTML="Off";
			document.cookie="playerrepeat=0";
			audio.loop=false;
		}
		else
		{
			document.getElementById("repeatsw").innerHTML="On";
			document.cookie="playerrepeat=1";
			audio.loop=true;
		}
	}
	document.getElementById("plistsw").onclick=togglePlist;
	document.body.onmousedown=function(e){if(e.buttons==1)mbuttonstate=1;}
	document.body.onmouseup=function(e){if(e.buttons!=1)mbuttonstate=0;}
	document.getElementById("tsliderbase").onclick=function(e)
	{
		var sr=this.getBoundingClientRect();
		var p=(e.clientX-sr.left)/sr.width;
		audio.currentTime=audio.duration*p;
	}
	document.getElementById("tsliderbase").onmousemove=function(e)
	{
		if(!mbuttonstate)return;
		var sr=this.getBoundingClientRect();
		var p=(e.clientX-sr.left)/sr.width;
		audio.currentTime=audio.duration*p;
	}
	document.getElementById("pbplaypause").onclick=function()
	{
		if(audio.src==""){run($(playlist.find('a')[0]));return;}
		if(audio.paused)
		{
			audio.play();
			document.getElementById("imgplaypause").src="pause.svg";
		}
		else
		{
			audio.pause();
			document.getElementById("imgplaypause").src="play.svg";
		}
	}
	document.getElementById("pbprev").onclick=function()
	{
		if(audio.currentTime>10)audio.currentTime=0;
		else
		{
			current--;
			if(current<0){
				current+=len;
				if(shuffle)shufflePlist();
				link=playlist.find('a')[len-1];
			}else{
				link=playlist.find('a')[current];
			}
			run($(link));
		}
	}
	document.getElementById("pbnext").onclick=function()
	{
		current++;
		if(current==len){
			current=0;
			if(shuffle)shufflePlist();
			link=playlist.find('a')[0];
		}else{
			link=playlist.find('a')[current];
		}
		run($(link));
	}
	switch(getcookie("playershuffle"))
	{
		case "1":
			document.getElementById("shufflesw").innerHTML="On";
			document.cookie="playershuffle=1";
			shufflePlist();
		break;
		default:
		case "0":
			document.getElementById("shufflesw").innerHTML="Off";
			document.cookie="playershuffle=0";
			sortPlist();
		break;
	}
	switch(getcookie("playerrepeat"))
	{
		case "1":
			document.getElementById("repeatsw").innerHTML="On";
			document.cookie="playerrepeat=1";
			audio.loop=true;
		break;
		default:
		case "0":
			document.getElementById("repeatsw").innerHTML="Off";
			document.cookie="playerrepeat=0";
			audio.loop=false;
		break;
	}
	if(getcookie("playervisualization").length!==0)
	visualselector.value=getcookie("playervisualization");
	requestAnimationFrame(updateVisualization);
}
function shufflePlist()
{
	for(var i=0;i<playlist.find('a').length;++i)
		$(playlist.find('a')[i]).attr("sord",Math.random()*playlist.find('a').length);
	var plli=$(playlist).children('li');
	plli.sort(
		function(a,b)
		{
			var as=Number($(a).children('a').attr("sord"));
			var bs=Number($(b).children('a').attr("sord"));
			return as>bs?1:as<bs?-1:0;
		}
	);
	plli.detach().appendTo($(playlist));
	var t=$("li.active").children().length?$("li.active").children()[0].textContent:"";
	for(var i=0;i<playlist.find('a').length;++i)
	{
		if(playlist.find('a')[i].textContent==t)
		{current=i;break;}
	}
}
function sortPlist()
{
	var plli=$(playlist).children('li');
	plli.sort(
		function(a,b)
		{
			var as=Number($(a).children('a').attr("ord"));
			var bs=Number($(b).children('a').attr("ord"));
			return as>bs?1:as<bs?-1:0;
		}
	);
	plli.detach().appendTo($(playlist));
	var t=$("li.active").children().length?$("li.active").children()[0].textContent:"";
	for(var i=0;i<playlist.find('a').length;++i)
	{
		if(playlist.find('a')[i].textContent==t)
		{current=i;break;}
	}
}
function formatTime(t)
{
	var m=Math.floor(t/60),s=Math.round(t-Math.floor(t/60)*60);
	if(s<10)return m+":0"+s;
	else if(s==60)return (m+1)+":00";
	else return m+":"+s;
}
function bufferedUpdate()
{
	var r=0;
	for(var i=0;i<audio.buffered.length;++i)
	r=r<audio.buffered.end(i)?audio.buffered.end(i):r;
	document.getElementById("cbuff").style.width=r/audio.duration*100+"%";
}
function timeUpdate()
{
	document.getElementById("timenow").innerHTML=formatTime(audio.currentTime);
	document.getElementById("timeleft").innerHTML="-"+formatTime(audio.duration-audio.currentTime);
	document.getElementById("ctime").style.width=audio.currentTime/audio.duration*100+"%";
	bufferedUpdate();
}
function mm(e)
{
	/*if(e.clientX<320&&e.clientY>(window.innerHeight-383))
	{
		changeImage('../../../koishi_hovr.png');
		document.getElementById("aqt").style.opacity="0.5";
	}
	else
	{
		changeImage('../../../koishi_norm.png');
		document.getElementById("aqt").style.opacity="1.0";
	}*/
}
function windowresize()
{
	if(plistshown)
	{
		document.getElementById("playlist").style.left=(window.innerWidth-plistRect.width)/2+"px";
		plistRect=document.getElementById("playlist").getBoundingClientRect();
	}
	else
	{
	}
}
function run(link)
{
	var trurl="";
	if(window.location.href.indexOf("&title=")==-1)
		trurl=window.location.href;
	else
		trurl=window.location.href.substr(0,window.location.href.indexOf("&title="));
	trurl=trurl.concat("&title=");
	trurl=trurl.concat(link.attr('tr'));
	window.history.replaceState("","The Stupid Online Player",trurl);
	document.getElementById("imgplaypause").src="pause.svg";
	audio.src=link.attr('href');
	document.getElementById("nowplaying").innerHTML="Now Playing: "+link.attr('tr');
	par=link.parent();
	par.addClass('active').siblings().removeClass('active');
	audio.load();
	audio.play();
}

function togglePlist()
{
	document.getElementById("plistsw").onclick=function(){};
	plistshown=!plistshown;
	if(plistshown)
	{
		for(var i=0;i<playlist.find('a').length;++i)
			$(playlist.find('a')[i]).css("transition","0.8s");
		document.getElementById("plistsw").innerHTML="[↓Hide Playlist]";
		setTimeout(
			function(){
				document.getElementById("playlist").style.left=(window.innerWidth-plistRect.width)/2+"px";
				document.getElementById("playlist").style.top=document.getElementById("plistref").getBoundingClientRect().top+"px";
				document.getElementById("playlist").style.background="rgba(153,187,238,0.6)";
				for(var i=0;i<playlist.find('a').length;++i)
					$(playlist.find('a')[i]).css("color","");
			}
		,40);
		setTimeout(
			function(){
				document.getElementById("playlist").style.position="static";
				document.getElementById("plistsw").onclick=togglePlist;
				plistRect=document.getElementById("playlist").getBoundingClientRect();
				for(var i=0;i<playlist.find('a').length;++i)
					$(playlist.find('a')[i]).css("transition","none");
			}
		,840);
	}
	else
	{
		var d=$(document).scrollTop();
		$('html,body').stop().animate({scrollTop:0},d);
		setTimeout(
			function(){
				plistRect=document.getElementById("playlist").getBoundingClientRect();
				document.getElementById("playlist").style.position="fixed";
				document.getElementById("playlist").style.top=plistRect.top+"px";
				document.getElementById("playlist").style.left=plistRect.left+"px";
				for(var i=0;i<playlist.find('a').length;++i)
					$(playlist.find('a')[i]).css("transition","0.8s");
			},
		d+1);
		setTimeout(
			function(){
				document.getElementById("playlist").style.top="100%";
				document.getElementById("playlist").style.background="rgba(153,187,238,0)";
				document.getElementById("plistsw").onclick=togglePlist;
				for(var i=0;i<playlist.find('a').length;++i)
					$(playlist.find('a')[i]).css("color",$(playlist.find('a')[i]).hasClass("active")?"rgba(255,204,0,0);":"rgba(32,172,255,0)");
			},
		d+5);
		document.getElementById("plistsw").innerHTML="[↑Show Playlist]";
	}
}

function updateVisualization()
{
	if(visualselector.value=="spectrum")
	{
		var cctx=canvas.getContext('2d');
		cctx.clearRect(0,0,canvas.width,canvas.height);
		try{
			var freqarr=new Uint8Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getByteFrequencyData(freqarr);
			for(var i=0;i<CSpectrum;++i)
			{
				var color='hsl('+i*360.0/CSpectrum+',100%,50%)';
				cctx.fillStyle=color;
				cctx.fillRect(i*(SpecWidth+SpecGap),canvas.height-(canvas.height*freqarr[i]/255.),SpecWidth,canvas.height*freqarr[i]/255.);
				if(caps[i]<freqarr[i])caps[i]=freqarr[i];else if(caps[i]>0)--caps[i];
				color='hsl('+i*360.0/CSpectrum+',100%,25%)';
				cctx.fillStyle=color;
				cctx.fillRect(i*(SpecWidth+SpecGap),canvas.height-(canvas.height*caps[i]/255.)-1,SpecWidth,1);
			}
		}catch(e){
			if(caps[i]>0)--caps[i];
			color='hsl('+i*360.0/CSpectrum+',100%,25%)';
			cctx.fillStyle=color;
			cctx.fillRect(i*(SpecWidth+SpecGap),canvas.height-caps[i]-1,SpecWidth,1);
		};
	}
	if(visualselector.value=="spectrumring")
	{
		var cctx=canvas.getContext('2d');
		cctx.clearRect(0,0,canvas.width,canvas.height);
		try{
			var freqarr=new Uint8Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getByteFrequencyData(freqarr);
			for(var i=0;i<CSpectrum;++i)
			{
				var color='hsl('+i*360.0/CSpectrum+',100%,50%)';
				cctx.strokeStyle=color;
				cctx.beginPath();cctx.moveTo(canvas.width/2.,canvas.height/2.);
				cctx.lineTo(canvas.width/2.-Math.cos(2*Math.PI*(i/CSpectrum))*SpecRingRadius*freqarr[i]/255.,
							canvas.height/2.-Math.sin(2*Math.PI*(i/CSpectrum))*SpecRingRadius*freqarr[i]/255.);
				cctx.stroke();
				if(caps[i]<freqarr[i])caps[i]=freqarr[i];else if(caps[i]>0)--caps[i];
				color='hsl('+i*360.0/CSpectrum+',100%,25%)';
				cctx.strokeStyle=color;
				cctx.beginPath();
				cctx.moveTo(canvas.width/2.-Math.cos(2*Math.PI*(i/CSpectrum))*SpecRingRadius*(caps[i]+1)/255.,
							canvas.height/2.-Math.sin(2*Math.PI*(i/CSpectrum))*SpecRingRadius*(caps[i]+1)/255.);
				cctx.lineTo(canvas.width/2.-Math.cos(2*Math.PI*(i/CSpectrum))*SpecRingRadius*caps[i]/255.,
							canvas.height/2.-Math.sin(2*Math.PI*(i/CSpectrum))*SpecRingRadius*caps[i]/255.);
				cctx.stroke();
			}
		}catch(e){
			if(caps[i]>0)--caps[i];
			color='hsl('+i*360.0/CSpectrum+',100%,25%)';
			cctx.strokeStyle=color;
				cctx.moveTo(canvas.width/2.-Math.cos(2*Math.PI*(i/CSpectrum))*SpecRingRadius*(caps[i]+1)/255.,
							canvas.height/2.-Math.sin(2*Math.PI*(i/CSpectrum))*SpecRingRadius*(caps[i]+1)/255.);
				cctx.lineTo(canvas.width/2.-Math.cos(2*Math.PI*(i/CSpectrum))*SpecRingRadius*caps[i]/255.,
							canvas.height/2.-Math.sin(2*Math.PI*(i/CSpectrum))*SpecRingRadius*caps[i]/255.);
				cctx.stroke();
		};
	}
	if(visualselector.value=="scope")
	{
		var cctx=canvas.getContext('2d');
		cctx.clearRect(0,0,canvas.width,canvas.height);
		try{
			var tdomainarr=new Uint8Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getByteTimeDomainData(tdomainarr);
			cctx.lineWidth=dpiratio;
			cctx.strokeStyle="#000";
			cctx.beginPath();
			var x=0;
			for(var i=0;i<CSpectrum;++i)
			{
				if(i==0)cctx.moveTo(x,tdomainarr[i]/128.*canvas.height/2);
				else cctx.lineTo(x,tdomainarr[i]/128.*canvas.height/2);
				x+=canvas.width*1./CSpectrum;
			}
			cctx.stroke();
		}catch(e){
			console.log(e.message);
		};
	}
	if(visualselector.value=="spectrogram")
	{
		var cctx=canvas.getContext('2d');
		try{
			var freqarr=new Uint8Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getByteFrequencyData(freqarr);
			cctx.clearRect(spectrogrampos/1800*canvas.width,0,canvas.width/1800,canvas.height);
			for(var i=0;i<CSpectrum;++i)
			{
				var color='rgba(0,0,0,'+freqarr[i]/256.+')';
				cctx.fillStyle=color;
				cctx.fillRect(spectrogrampos/1800*canvas.width,(CSpectrum-i)/CSpectrum*canvas.height,canvas.width/1800.,canvas.height/CSpectrum);
			}
			++spectrogrampos;if(spectrogrampos>=1800)spectrogrampos=0;
		}catch(e){
		};
	}
	if(visualselector.value=="inkfountain")
	{
		var cctx=canvas.getContext('2d'),ts=Date.now(),tu;
		cctx.clearRect(0,0,canvas.width,canvas.height);
		++frms;if(Date.now()-lastfpsupd>500){if(lastfpsupd)fps=1000*frms/(Date.now()-lastfpsupd),frms=0;lastfpsupd=Date.now();}
		try{
			var freqarr=new Uint8Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getByteFrequencyData(freqarr);
			for(var i=0;i<CSpectrumIF;++i)
			{
				var r=0;
				for(var j=0;j<8;++j)r+=freqarr[i*8+j];
				r/=8.;
				if(r-caps[i]>7)
				{
					var color=Math.floor(i*8.0/CSpectrumIF),rad=Math.random()*Math.PI*2;
					var ndrops=(128-i)/128.*3+1;ndrops*=(r/128.);ndrops=Math.floor(ndrops);if(ndrops<1)ndrops=1;
					for(var k=0;k<ndrops;++k)
					{
						createInk(((r-caps[i]-7)/32*24+12)*Math.cos(rad),((r-caps[i]-7)/32*24+12)*Math.sin(rad),color);
						rad=Math.random()*Math.PI*2;
					}
				}
				if(r>caps[i])caps[i]=r;else caps[i]-=2;
			}
		}catch(e){
			console.log(e.message);
		};
		tu=Date.now();
		var aa=0;
		for(var i=0;i<inks.length;++i){
			if(inks[i].active){inks[i].update();inks[i].draw(cctx);++aa}
		}
		cctx.fillStyle="#000";
		cctx.font="1em Courier, monospace";
		cctx.fillText("Active droplets "+aa+", "+fps.toFixed(2)+" FPS",0,10);
		cctx.fillText("Update time "+(tu-ts)+"ms, render time "+(Date.now()-tu)+"ms",0,24);
	}
	if(visualselector.value=="shakeurbody")
	{
		var cctx=canvas.getContext('2d');
		cctx.clearRect(0,0,canvas.width,canvas.height);
		try{
			var tdomainarr=new Float32Array(CtxtAnalyser.frequencyBinCount);
			CtxtAnalyser.getFloatTimeDomainData(tdomainarr);
			for(var i=0;i<CSpectrum;++i)
			{
				var kbf=1/(audioCtxt.sampleRate*lpf),br=Math.exp(-1/(audioCtxt.sampleRate*beatr));
				f1+=(kbf*(tdomainarr[i]-f1));
				f2+=(kbf*(f1-f2));
				var env=Math.abs(f2);
				if(env>penv)penv=env;else{penv*=br;penv+=(1-br)*env;}
				if(!btrig){if(penv>0.20)btrig=1;}else{if(penv<0.125)btrig=0;}
				beatp=0;if(btrig&&!lastbp)beatp=1;lastbp=beatp;
				if(beatp)document.body.style.transform='translateY(100px)';else document.body.style.transform='translateY(0px)';
			}
		}catch(e){
			document.body.style.transform='translateY(0px)';
		};
	}else document.body.style.transform='none';
	if(visualselector.value!="none")
	af=requestAnimationFrame(updateVisualization);
}