A Pen by Khangeldy

Developer
Khangeldy
Size
2,352 Kb
Views
12,144
  1. A Pen by Khangeldy Previews
  2. A Pen by Khangeldy HTML Codes
  3. A Pen by Khangeldy JS Codes

How do I make an a pen by khangeldy?

What is a a pen by khangeldy? How do you make a a pen by khangeldy? This script and codes were developed by Khangeldy on 09 November 2022, Wednesday.

A Pen by Khangeldy Previews
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A Pen by Khangeldy - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>A Pen by Khangeldy</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
</head>
<body> <canvas id="tutorial" width="500" height="500"></canvas> <script src="js/index.js"></script>
</body>
</html>

A Pen by Khangeldy - Script Codes JS Codes

var canvas = document.getElementById('tutorial'),	context = canvas.getContext('2d'),	w = canvas.width = window.innerWidth,	h = canvas.height = window.innerHeight,	area = w * h,	particleNum = 300,	ANIMATION,	particleStartX = w / 2,	particleStartY = h / 2;
var particles = [];
// Particle constructor
function Particle(i) {	this.id = i;	this.hue = rand(50,0, 1);	this.active = false;
}
Particle.prototype.build = function(parX, parY) {	//	window center	this.x = parX;	this.y = parY;	// random	this.r = rand(7, 2, 1);	this.vx = Math.random() * 10 - 5;	this.vy = Math.random() * 10 - 5;	this.gravity = .01;	this.opacity = Math.random() + .5;	this.active = true;	context.beginPath();	context.arc(this.x, this.y, this.r, 0, 2 * Math.PI, false);	context.fillStyle ="hsla(" + this.hue + ",100%,50%,1)";	context.fill();
};
Particle.prototype.draw = function() {	this.active = true;	this.x += this.vx;	this.y += this.vy;	this.vy += this.gravity;	this.hue -= 0.5;	this.r = Math.abs(this.r - 0.05);	context.beginPath();	context.arc(this.x, this.y, this.r, 0, 2 * Math.PI, false);	context.fillStyle = "hsla(" + this.hue + ", 100%, 50%, 1)";	context.fill();	if(this.r <= 0.5) {	this.active = false;	}
}
// draw scene
function drawScene() {	context.fillStyle = 'black';	context.fillRect(0,0,w,h);	for(var i = 0; i < particles.length; i++) {	if(particles[i].active === true) {	particles[i].draw();	} else {	particles[i].build(particleStartX, particleStartY);	}	}	ANIMATION = requestAnimationFrame(drawScene);
}
function initCanvas() {	var s = getComputedStyle(canvas);	if(particles.length) {	particles = [];	cancelAnimationFrame(ANIMATION);	ANIMATION;	console.log(ANIMATION);	}	w = canvas.width = window.innerWidth;	h = canvas.height = window.innerHeight;	for(var i = 0; i < particleNum; i++) {	particles.push(new Particle(i));	}	drawScene();	console.log(ANIMATION);
}
(function init() {	initCanvas();	window.addEventListener('resize', initCanvas, false);	document.addEventListener('mousemove', function(e) {	if(e.pageY <= 10 || e.pageY > window.innerHeight || e.pageX <= 10 || e.pageX > window.innerWidth ) {	console.log('out');	particleStartY = h / 2;	particleStartX = w / 2;	} else {	particleStartX = e.pageX;	particleStartY = e.pageY;	}	});
})();
// Helper Functions
function rand(max, min, _int) {	var max = (max === 0 || max) ? max: 1,	min = min || 0,	gen = min + (max -min) * Math.random();	return (_int) ? Math.round(gen) : gen;
}
A Pen by Khangeldy - Script Codes
A Pen by Khangeldy - Script Codes
Home Page Home
Developer Khangeldy
Username Khangeldy
Uploaded November 09, 2022
Rating 3
Size 2,352 Kb
Views 12,144
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