Spirograph

Developer
Francesco Trillini
Size
3,893 Kb
Views
105,248
  1. Spirograph Previews
  2. Spirograph HTML Codes
  3. Spirograph CSS Codes
  4. Spirograph JS Codes

How do I make an spirograph?

My entry for CodePen rodeo-006.. What is a spirograph? How do you make a spirograph? This script and codes were developed by Francesco Trillini on 01 September 2022, Thursday.

Spirograph Previews
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Spirograph - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Spirograph</title> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ body { margin: 0px; overflow: hidden;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <body></body> <script src="js/index.js"></script>
</body>
</html>

Spirograph - Script Codes CSS Codes

body { margin: 0px; overflow: hidden;
}

Spirograph - Script Codes JS Codes

/* * Copyright MIT © <2013> <Francesco Trillini> * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated * documentation files (the "Software"), to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and * to permit persons to whom the Software is furnished to do so, subject to the following conditions: * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
var self = window;
(function(self) {	var canvas, context, particles = [], explode = true, FPS = 60;	/* * Init. */	function init() {	var body = document.querySelector('body');	canvas = document.createElement('canvas');	canvas.width = innerWidth;	canvas.height = innerHeight;	canvas.style.position = 'absolute';	canvas.style.top = 0;	canvas.style.bottom = 0;	canvas.style.left = 0;	canvas.style.right = 0;	canvas.style.background = '-webkit-radial-gradient(rgb(252, 252, 240), rgb(203, 192, 180))';	canvas.style.background = '-moz-radial-gradient(rgb(252, 252, 240), rgb(203, 192, 180))';	canvas.style.background = '-ms-radial-gradient(rgb(252, 252, 240), rgb(203, 192, 180))';	canvas.style.background = '-o-radial-gradient(rgb(252, 252, 240), rgb(203, 192, 180))';	canvas.style.background = 'radial-gradient(rgb(252, 252, 240), rgb(203, 192, 180))';	body.appendChild(canvas);	// Browser supports canvas?	if(!!(capable)) {	context = canvas.getContext('2d');	window.onresize = onResize;	createParticles();	}	else {	console.error("Sorry, your browser doesn't support canvas.");	}	}	/* * Check if browser supports canvas element. */	function capable() {	return canvas.getContext && canvas.getContext('2d');	}	/* * On resize window event. */	function onResize() {	canvas.width = window.innerWidth;	canvas.height = window.innerHeight;	}	/* * Create particles. */	function createParticles() {	for(var quantity = 0, len = 200; quantity < len; quantity++) {	var x, y, steps;	steps = Math.PI * 2 * quantity / len;	x = canvas.width * 0.5 + 200 * Math.cos(steps);	y = canvas.height * 0.5 + 200 * Math.sin(steps);	particles.push({	x: x,	y: y,	lineX: x,	lineY: y,	centerX: canvas.width * 0.5,	centerY: canvas.height * 0.5,	originalX: x,	originalY: y,	scale: 1,	radius: 3,	minRadius: 3,	maxRadius: 9,	orbit: 100,	angle: 0,	speed: 0.05,	steps: steps	});	}	loop();	}	/* * Loop logic. */	function loop() {	clear();	update();	render();	requestAnimFrame(loop);	}	/* * Clear the whole screen. */	function clear() {	context.clearRect(0, 0, canvas.width, canvas.height);	}	/* * Update the particles. */	function update() {	var towards = {	x: Math.round(canvas.width * 0.5),	y: Math.round(canvas.height * 0.5)	};	[].forEach.call(particles, function(particle, index) {	particle.x = particle.centerX + Math.cos(particle.angle + index) * particle.orbit;	particle.y = particle.centerY + Math.sin(particle.angle + index) * particle.orbit;	particle.originalX += (towards.x + 200 * Math.cos(particle.steps) - particle.originalX) * 0.05;	particle.originalY += (towards.y + 200 * Math.sin(particle.steps) - particle.originalY) * 0.05;	particle.lineX += (towards.x + 200 * Math.cos(particle.steps) - particle.lineX) * 0.05;	particle.lineY += (towards.y + 200 * Math.sin(particle.steps) - particle.lineY) * 0.05;	particle.scale = 1 + Math.sin(particle.angle) * 5;	particle.angle += particle.speed;	// Implosion	if(!explode) {	particle.centerX += (towards.x - particle.centerX) * 0.05;	particle.centerY += (towards.y - particle.centerY) * 0.05;	particle.radius += (particle.maxRadius - particle.radius) * 0.05;	if(Math.round(particle.centerX) === towards.x && Math.round(particle.centerY) === towards.y)	explode = true;	}	// Explosion	if(explode) {	particle.centerX += (particle.originalX - particle.centerX) * 0.05;	particle.centerY += (particle.originalY - particle.centerY) * 0.05;	particle.radius += (particle.minRadius - particle.radius) * 0.05;	if(Math.round(particle.centerX) === Math.round(particle.originalX) && Math.round(particle.centerY) === Math.round(particle.originalY))	explode = false;	}	});	}	/* * Render the particles. */	function render() {	[].forEach.call(particles, function(particle, index) {	context.save();	context.globalAlpha = 0.5;	context.strokeStyle = 'rgb(84, 64, 47)';	context.lineWidth = 1;	context.beginPath();	context.moveTo(particle.lineX, particle.lineY);	context.lineTo(particle.x, particle.y);	context.stroke();	context.restore();	});	[].forEach.call(particles, function(particle, index) {	context.save();	context.translate(particle.x, particle.y);	context.scale(particle.scale, particle.scale);	context.globalCompositeOperation = 'lighter';	context.globalAlpha = 1;	context.fillStyle = 'rgb(84, 64, 47)';	context.beginPath();	context.arc(0, 0, particle.radius, 0, Math.PI * 2);	context.fill();	context.restore();	});	}	/* * Request new frame by Paul Irish. * 60 FPS. */	window.requestAnimFrame = (function() {	return window.requestAnimationFrame ||	window.webkitRequestAnimationFrame ||	window.mozRequestAnimationFrame ||	window.oRequestAnimationFrame ||	window.msRequestAnimationFrame ||	function(callback) {	window.setTimeout(callback, 1000 / FPS);	}; })();	window.addEventListener ? window.addEventListener('load', init, false) : window.onload = init;
})(self);
Spirograph - Script Codes
Spirograph - Script Codes
Home Page Home
Developer Francesco Trillini
Username Francext
Uploaded September 01, 2022
Rating 4
Size 3,893 Kb
Views 105,248
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