/*! * Fairy Dust Cursor.js * - 90's cursors collection * -- https://github.com/tholman/90s-cursor-effects * -- https://codepen.io/tholman/full/jWmZxZ/ */ (function fairyDustCursor() { var possibleColors = ["white"] var width = window.innerWidth; var height = window.innerHeight; var cursor = {x: width/2, y: width/2}; var particles = []; function init() { bindEvents(); loop(); } // Bind events that are needed function bindEvents() { document.addEventListener('mousemove', onMouseMove); document.addEventListener('touchmove', onTouchMove); document.addEventListener('touchstart', onTouchMove); window.addEventListener('resize', onWindowResize); } function onWindowResize(e) { width = window.innerWidth; height = window.innerHeight; } function onTouchMove(e) { if( e.touches.length > 0 ) { for( var i = 0; i < e.touches.length; i++ ) { addParticle( e.touches[i].clientX, e.touches[i].clientY, possibleColors[Math.floor(Math.random()*possibleColors.length)]); } } } function onMouseMove(e) { cursor.x = e.clientX; cursor.y = e.clientY; addParticle( cursor.x, cursor.y, possibleColors[Math.floor(Math.random()*possibleColors.length)]); } function addParticle(x, y, color) { var particle = new Particle(); particle.init(x, y, color); particles.push(particle); } function updateParticles() { // Updated for( var i = 0; i < particles.length; i++ ) { particles[i].update(); } // Remove dead particles for( var i = particles.length -1; i >= 0; i-- ) { if( particles[i].lifeSpan < 0 ) { particles[i].die(); particles.splice(i, 1); } } } function loop() { requestAnimationFrame(loop); updateParticles(); } /** * Particles */ function Particle() { this.character = "*"; this.lifeSpan = 120; //ms this.initialStyles ={ "position": "absolute", "display": "block", "pointerEvents": "none", "z-index": "10000000", "fontSize": "21px", "will-change": "transform", "mix-blend-mode": "multiply" }; // Init, and set properties this.init = function(x, y, color) { this.velocity = { x: (Math.random() < 0.5 ? -1 : 1) * (Math.random() / 2), y: 1 }; this.position = {x: x - 10, y: y - 20}; this.initialStyles.color = color; this.element = document.createElement('span'); this.element.innerHTML = this.character; applyProperties(this.element, this.initialStyles); this.update(); document.querySelector('.magic').appendChild(this.element); }; this.update = function() { this.position.x += this.velocity.x; this.position.y += this.velocity.y; this.lifeSpan--; this.element.style.transform = "translate3d(" + this.position.x + "px," + this.position.y + "px, 0) scale(" + (this.lifeSpan / 120) + ")"; } this.die = function() { this.element.parentNode.removeChild(this.element); } } /** * Utils */ // Applies css `properties` to an element. function applyProperties( target, properties ) { for( var key in properties ) { target.style[ key ] = properties[ key ]; } } init(); })();