/*
 * ----------------------------------------------------------------------------
 * "the beer-ware license" (revision 42):
 * <martin@revoltera.com> wrote this file. as long as you retain this notice,
 * you can do whatever you want with this stuff. if we meet some day, and you
 * think this stuff is worth it, you can buy me a beer in return.
 * ----------------------------------------------------------------------------
 */

(function($){$.fn.polygonizr=function(options){var defaults={restnodemovements:1,duration:3,nodemovementdistance:100,numberofnodes:25,nodedotsize:2.5,nodeease:"easeout",nodefancyentrance:!1,randomizepolygonmeshnetworkformation:!0,specifypolygonmeshnetworkformation:function(i){var foreachnode={x:this.canvaswidth-((this.canvaswidth/2)+(this.canvasheight/2)*math.cos(i*(2*math.pi/this.numberofnodes)))*math.random(),y:this.canvasheight-(this.canvasheight*(i/this.numberofnodes))};return foreachnode},noderelations:3,animationfps:30,nodedotcolor:"240, 255, 250",nodelinecolor:"240, 255, 250",nodefillcolor:"240, 255, 250",nodefillalpha:0.2,nodelinealpha:0.3,nodedotalpha:0.3,nodefillsapce:!0,nodeglowing:!1,canvaswidth:$(this).width(),canvasheight:$(this).height(),canvasposition:"absolute"};var settings=$.extend({},defaults,options);return this.each(function(){var m_this=$(this);var canvaselement=document.createelement('canvas');canvaselement.width=settings.canvaswidth;canvaselement.height=settings.canvasheight;canvaselement.style.position=settings.canvasposition;m_this.append(canvaselement);var ctx=canvaselement.getcontext('2d');var nodes=[];setupclusternodes();startnodeanimations();function setupclusternodes(){for(var i=0;i<settings.numberofnodes;i++){var currentnode={x:0,y:0};if(settings.randomizepolygonmeshnetworkformation){currentnode.x=math.random()*settings.canvaswidth;currentnode.y=math.random()*settings.canvasheight}else{currentnode=settings.specifypolygonmeshnetworkformation(i)}
nodes.push({currentx:currentnode.x,originx:currentnode.x,startx:currentnode.x,targetx:currentnode.x,currenty:currentnode.y,originy:currentnode.y,starty:currentnode.x,targety:currentnode.y})}
for(var i=0;i<nodes.length;i++){var closest=[];var node=nodes[i];for(var j=0;j<nodes.length;j++){var tempnode=nodes[j];if(node!=tempnode){for(var k=0;k<settings.noderelations;k++){if(closest[k]==undefined){closest[k]=tempnode;break}if(getdistance(node,tempnode)<getdistance(node,closest[k])){closest[k]=tempnode;break}}}}
node.closest=closest;setalphalevel(nodes[i])}}
function startnodeanimations(){var animator=new animator(settings.nodeease,settings.animationfps,settings.duration,settings.restnodemovements,settings.nodefancyentrance,draw);animator.start()}
const constants={animation:{easing_linear:"linear",easing_easein:"easein",easing_easeout:"easeout",easing_easeinout:"easeinout",easing_accelerate:"acceleratedecelerate",easing_descending:"descendingentrance"}};function animator(easing,fps,duration,delay,fancyentrance,callback){function step(timestamp){if(!m_starttime)m_starttime=timestamp;if(!m_lastframeupdate)m_lastframeupdate=timestamp;var currentframe=math.floor((timestamp-m_starttime)/(1000/fps));if(m_framecount<currentframe){m_framecount=currentframe;var currentduration=timestamp-m_lastframeupdate;if(currentduration<=m_duration){if(m_newtargetpossition){setnewtargetpossition();m_newtargetpossition=!1}
if(m_entrancesingleton&&fancyentrance){setnewnodepossition(constants.animation.easing_descending,currentduration,m_duration)}else{setnewnodepossition(easing,currentduration,m_duration)}
if(callback&&typeof(callback)==="function"){callback()}}else if(currentduration>=(m_duration+m_delay)){m_lastframeupdate=timestamp;m_newtargetpossition=!0;m_entrancesingleton=!1}}
m_requestid=m_requestanimationframe(step)}
this.isrunning=!1;this.start=function(){if(!this.isrunning){this.isrunning=!0;m_duration=duration*1000;m_delay=delay*1000;m_requestid=m_requestanimationframe(step)}};this.pause=function(){if(this.isrunning){m_cancleanimationframe(m_requestid);this.isrunning=!1;m_starttime=null;m_framecount=-1}};var m_requestanimationframe=window.requestanimationframe||window.mozrequestanimationframe||window.webkitrequestanimationframe||window.orequestanimationframe||window.msrequestanimationframe;var m_cancleanimationframe=window.cancelanimationframe||window.mozcancelrequestanimationframe||window.webkitcancelrequestanimationframe||window.ocancelrequestanimationframe||window.mscancelrequestanimationframe;var m_starttime=null;var m_framecount=-1
var m_requestid=null;var m_lastframeupdate=null;var m_newtargetpossition=!0;var m_entrancesingleton=!0;var m_duration;var m_delay}
function geteasing(easing,currenttime,startpossition,targetpossition,endtime){switch(easing){case constants.animation.easing_linear:return(targetpossition-startpossition)*(currenttime/endtime)+startpossition;break;case constants.animation.easing_easein:currenttime/=endtime;return(targetpossition-startpossition)*math.pow(currenttime,2)+startpossition;case constants.animation.easing_easeout:currenttime/=endtime;return-(targetpossition-startpossition)*currenttime*(currenttime-2)+startpossition;case constants.animation.easing_easeinout:currenttime/=(endtime/2);if(currenttime<1)return(targetpossition-startpossition)/2*math.pow(currenttime,2)+startpossition;return-(targetpossition-startpossition)/2*((currenttime-1)*((currenttime-1)-2)-1)+startpossition;break;case constants.animation.easing_accelerate:currenttime/=(endtime/2);if(currenttime<1)return(targetpossition-startpossition)/2*math.pow(currenttime,3)+startpossition;return(targetpossition-startpossition)/2*(math.pow(currenttime-2,3)+2)+startpossition;break;case constants.animation.easing_descending:currenttime/=(endtime/2);if(currenttime<1)return(targetpossition-startpossition)/math.pow(currenttime,3)+startpossition;return(targetpossition-startpossition)/(math.pow(currenttime-2,3)+2)+startpossition;break;default:return geteasing(constants.animation.easing_linear,currenttime,startpossition,targetpossition,endtime)}}
function setnewnodepossition(easing,currenttime,endtime){for(var i in nodes){nodes[i].currentx=geteasing(easing,currenttime,nodes[i].startx,nodes[i].targetx,endtime);nodes[i].currenty=geteasing(easing,currenttime,nodes[i].starty,nodes[i].targety,endtime)}}
function setnewtargetpossition(){for(var i in nodes){nodes[i].targetx=nodes[i].originx+(math.random()<0.5?-math.random():math.random())*settings.nodemovementdistance;nodes[i].targety=nodes[i].originy+(math.random()<0.5?-math.random():math.random())*settings.nodemovementdistance;nodes[i].startx=nodes[i].currentx;nodes[i].starty=nodes[i].currenty}}
function setalphalevel(node){var screendistance=math.sqrt(math.pow(settings.canvaswidth,2)+math.pow(settings.canvasheight,2));var nodedistance=getdistance(node,node.closest[0]);for(var i in node.closest){nodedistance+=getdistance(node.closest[i],node.closest[(i+1)%node.closest.length])}
var generalalpha=1-(nodedistance/screendistance);node.linealpha=generalalpha*settings.nodelinealpha;node.dotalpha=generalalpha*settings.nodedotalpha;if(generalalpha>0.85){node.fillalpha=generalalpha*settings.nodefillalpha;node.linealpha=settings.nodelinealpha;node.dotalpha=settings.nodedotalpha}else if(generalalpha<0.8&&generalalpha>0.7){node.fillalpha=0.5*generalalpha*settings.nodefillalpha;node.linealpha=settings.nodelinealpha;node.dotalpha=settings.nodedotalpha}else if(generalalpha<0.7&&generalalpha>0.4){node.fillalpha=0.2*generalalpha*settings.nodefillalpha}else{node.fillalpha=0}}
function draw(){ctx.clearrect(0,0,settings.canvaswidth,settings.canvasheight);for(var i in nodes){drawlines(nodes[i]);drawcircle(nodes[i])}}
function drawlines(node){if(!node.linealpha>0&&!node.fillalpha>0)return;for(var i in node.closest){if(node.linealpha>0){ctx.beginpath();ctx.moveto(node.currentx,node.currenty);ctx.lineto(node.closest[i].currentx,node.closest[i].currenty);ctx.strokestyle='rgba('+settings.nodelinecolor+','+node.linealpha+')';ctx.stroke()}
if(settings.nodefillsapce&&node.fillalpha>0){ctx.beginpath();ctx.moveto(node.currentx,node.currenty);ctx.lineto(node.closest[i].currentx,node.closest[i].currenty);ctx.lineto(node.closest[(i+1)%node.closest.length].currentx,node.closest[(i+1)%node.closest.length].currenty);ctx.fillstyle='rgba('+settings.nodefillcolor+','+node.fillalpha+')';ctx.fill()}}}
function drawcircle(node){if(!node.dotalpha>0)return;ctx.beginpath();ctx.arc(node.currentx,node.currenty,settings.nodedotsize,0,math.pi*2,!1);ctx.fillstyle='rgba('+settings.nodedotcolor+', '+node.dotalpha+')';if(settings.nodeglowing){ctx.shadowblur=10;ctx.shadowcolor='rgba('+settings.nodedotcolor+', '+node.dotalpha+')'}
ctx.fill()}
function getdistance(firstnode,secondnode){return math.sqrt(math.pow(firstnode.currentx-secondnode.currentx,2)+math.pow(firstnode.currenty-secondnode.currenty,2))}})}}(jquery))