let $ = {};
$.Particle=function(opt){this.radius=7;this.x=opt.x;this.y=opt.y;this.angle=opt.angle;this.speed=opt.speed;this.accel=opt.accel;this.decay=0.01;this.life=1};$.Particle.prototype.step=function(i){this.speed+=this.accel;this.x+=Math.cos(this.angle)*this.speed;this.y+=Math.sin(this.angle)*this.speed;this.angle+=$.PI/64;this.accel*=1.01;this.life-=this.decay;if(this.life<=0){$.particles.splice(i,1)}};$.Particle.prototype.draw=function(i){$.ctx.fillStyle=$.ctx.strokeStyle="hsla("+($.tick+(this.life*120))+", 100%, 60%, "+this.life+")";$.ctx.beginPath();if($.particles[i-1]){$.ctx.moveTo(this.x,this.y);$.ctx.lineTo($.particles[i-1].x,$.particles[i-1].y)}$.ctx.stroke();$.ctx.beginPath();$.ctx.arc(this.x,this.y,Math.max(0.001,this.life*this.radius),0,$.TWO_PI);$.ctx.fill();var size=Math.random()*1.25;$.ctx.fillRect(~~(this.x+((Math.random()-0.5)*35)*this.life),~~(this.y+((Math.random()-0.5)*35)*this.life),size,size)};$.step=function(){$.particles.push(new $.Particle({x:$.width/2+Math.cos($.tick/20)*$.min/2,y:$.height/2+Math.sin($.tick/20)*$.min/2,angle:$.globalRotation+$.globalAngle,speed:0,accel:0.01}));$.particles.forEach(function(elem,index){elem.step(index)});$.globalRotation+=$.PI/6;$.globalAngle+=$.PI/6};$.draw=function(){$.ctx.clearRect(0,0,$.width,$.height);$.particles.forEach(function(elem,index){elem.draw(index)})};$.init=function(){if($.particles){$.particles=[]}$.canvas=document.getElementById("loadingbar");$.ctx=$.canvas.getContext("2d");$.width=260;$.height=260;$.canvas.width=$.width*window.devicePixelRatio;$.canvas.height=$.height*window.devicePixelRatio;$.canvas.style.width=$.width+"px";$.canvas.style.height=$.height+"px";$.ctx.scale(window.devicePixelRatio,window.devicePixelRatio);$.min=$.width*0.5;$.particles=[];$.globalAngle=0;$.globalRotation=0;$.tick=0;$.PI=Math.PI;$.TWO_PI=$.PI*2;$.ctx.globalCompositeOperation="lighter";$.loop()};$.loop=function(){requestAnimationFrame($.loop);$.step();$.draw();$.tick++};$.init();