Canvas Sparkly Circle Loader

Developer
Jack Rugile
Size
2,446 Kb
Views
18,216
  1. Canvas Sparkly Circle Loader Previews
  2. Canvas Sparkly Circle Loader HTML Codes
  3. Canvas Sparkly Circle Loader CSS Codes
  4. Canvas Sparkly Circle Loader JS Codes

How do I make an canvas sparkly circle loader?

What is a canvas sparkly circle loader? How do you make a canvas sparkly circle loader? This script and codes were developed by Jack Rugile on 11 August 2022, Thursday.

Canvas Sparkly Circle Loader Previews
IQ Test

Canvas Sparkly Circle Loader - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Canvas Sparkly Circle Loader</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script src="js/index.js"></script>
</body>
</html>

Canvas Sparkly Circle Loader - Script Codes CSS Codes

body { background: #111; overflow: hidden;
}
canvas { bottom: 0; left: 0; margin: auto; position: absolute; right: 0; top: 0; -webkit-transform: translateZ(0); transform: translateZ(0);
}

Canvas Sparkly Circle Loader - Script Codes JS Codes

var $ = {};
$.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() { $.canvas = document.createElement( 'canvas' ); $.ctx = $.canvas.getContext( '2d' ); $.width = $.canvas.width = 300; $.height = $.canvas.height = 300; $.min = $.width * 0.5; $.particles = []; $.globalAngle = 0; $.globalRotation = 0; $.tick = 0; $.PI = Math.PI; $.TWO_PI = $.PI * 2; $.ctx.globalCompositeOperation = 'lighter'; document.body.appendChild( $.canvas ); $.loop();
};
$.loop = function() { requestAnimationFrame( $.loop ); $.step(); $.draw(); $.tick++;
};
$.init();
Canvas Sparkly Circle Loader - Script Codes
Canvas Sparkly Circle Loader - Script Codes
Home Page Home
Developer Jack Rugile
Username jackrugile
Uploaded August 11, 2022
Rating 4.5
Size 2,446 Kb
Views 18,216
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