gradient3.addColorStop(1, 'hsla(330, 50%, 50%, 0)');
ctx.fillStyle = gradient3;
ctx.fill();
ctx.restore();
},
renderCircleFlare2 = function(){
ctx.save();
ctx.translate(circle.x, circle.y);
ctx.rotate(dToR(circle.rotation+165));
ctx.scale(1.5,1);
ctx.beginPath();
ctx.arc(0, circle.radius, 25, 0, Math.PI *2, false);
ctx.closePath();
var gradient4 = ctx.createRadialGradient(0, circle.radius, 0, 0, circle.radius, 25);
gradient4.addColorStop(0, 'hsla(30, 100%, 50%, .2)');
gradient4.addColorStop(1, 'hsla(30, 100%, 50%, 0)');
ctx.fillStyle = gradient4;
ctx.fill();
ctx.restore();
},
createParticles = function(){
if(particles.length < particleMax){
particles.push({
x: (circle.x + circle.radius * Math.cos(dToR(circle.rotation-85))) + (rand(0, circle.thickness*2) - circle.thickness),
y: (circle.y + circle.radius * Math.sin(dToR(circle.rotation-85))) + (rand(0, circle.thickness*2) - circle.thickness),
vx: (rand(0, 100)-50)/1000,
vy: (rand(0, 100)-50)/1000,
radius: rand(1, 6)/2,
alpha: rand(10, 20)/100
});
}
},
updateParticles = function(){
var i = particles.length;
while(i--){
var p = particles[i];
p.vx += (rand(0, 100)-50)/750;
p.vy += (rand(0, 100)-50)/750;
p.x += p.vx;
p.y += p.vy;
p.alpha -= .01;
if(p.alpha < .02){
particles.splice(i, 1)
}
}
},
renderParticles = function(){
var i = particles.length;
while(i--){
var p = particles[i];
ctx.beginPath();
ctx.fillRect(p.x, p.y, p.radius, p.radius);
ctx.closePath();
ctx.fillStyle = 'hsla(0, 0%, 100%, '+p.alpha+')';
}
},
clear = function(){
ctx.globalCompositeOperation = 'destination-out';
ctx.fillStyle = 'rgba(0, 0, 0, .1)';
ctx.fillRect(0, 0, cw, ch);
ctx.globalCompositeOperation = 'lighter';
}
loop = function(){
clear();
updateCircle();
renderCircle();
renderCircleBorder();
renderCircleFlare();
renderCircleFlare2();
createParticles();
updateParticles();
renderParticles();
}
/* Append Canvas */
//document.body.appendChild(c);
/* Set Constant Properties */
ctx.shadowBlur = circle.blur;
ctx.shadowColor = 'hsla('+circle.hue+', 80%, 60%, 1)';
ctx.lineCap = 'round'
var gradient1 = ctx.createLinearGradient(0, -circle.radius, 0, circle.radius);
gradient1.addColorStop(0, 'hsla('+circle.hue+', 60%, 50%, .25)');
gradient1.addColorStop(1, 'hsla('+circle.hue+', 60%, 50%, 0)');
var gradient2 = ctx.createLinearGradient(0, -circle.radius, 0, circle.radius);
gradient2.addColorStop(0, 'hsla('+circle.hue+', 100%, 50%, 0)');
gradient2.addColorStop(.1, 'hsla('+circle.hue+', 100%, 100%, .7)');
gradient2.addColorStop(1, 'hsla('+circle.hue+', 100%, 50%, 0)');
/* Loop It, Loop It Good */
setInterval(loop, 16);
</script>
</body>
</html>
