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https://github.com/elyby/accounts-frontend.git
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Added that magic effect
This commit is contained in:
SleepWalker
ErickSkrauch
parent
c4eacca87d
commit
80f86eda8d
@ -14,6 +14,8 @@ export default function BSoD({store}) {
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return (
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<IntlProvider store={store}>
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<div className={styles.body}>
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<canvas ref={(el) => createThatMagicEffect(el)} />
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<div className={styles.wrapper}>
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<div className={styles.title}>
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<Message {...appInfo.appName} />
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@ -35,3 +37,177 @@ export default function BSoD({store}) {
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</IntlProvider>
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);
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}
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/**
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* @param {Node} c - canvas DOM node
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* @see http://codepen.io/mladen___/pen/gbvqBo
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*/
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function createThatMagicEffect(c) {
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var ctx = c.getContext("2d");
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function resize() {
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var box = c.getBoundingClientRect();
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c.width = box.width;
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c.height = box.height;
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}
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var light = {
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x: 160,
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y: 200
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}
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var colors = ["#f5c156", "#e6616b", "#5cd3ad"];
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function drawLight() {
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ctx.beginPath();
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ctx.arc(light.x, light.y, 1000, 0, 2 * Math.PI);
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var gradient = ctx.createRadialGradient(light.x, light.y, 0, light.x, light.y, 1000);
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gradient.addColorStop(0, "#3b4654");
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gradient.addColorStop(1, "#2c343f");
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ctx.fillStyle = gradient;
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ctx.fill();
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ctx.beginPath();
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ctx.arc(light.x, light.y, 20, 0, 2 * Math.PI);
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gradient = ctx.createRadialGradient(light.x, light.y, 0, light.x, light.y, 5);
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gradient.addColorStop(0, "#fff");
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gradient.addColorStop(1, "#3b4654");
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ctx.fillStyle = gradient;
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ctx.fill();
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}
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function Box() {
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this.half_size = Math.floor((Math.random() * 50) + 1);
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this.x = Math.floor((Math.random() * c.width) + 1);
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this.y = Math.floor((Math.random() * c.height) + 1);
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this.r = Math.random() * Math.PI;
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this.shadow_length = 2000;
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this.color = colors[Math.floor((Math.random() * colors.length))];
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this.getDots = function() {
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var full = (Math.PI * 2) / 4;
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var p1 = {
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x: this.x + this.half_size * Math.sin(this.r),
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y: this.y + this.half_size * Math.cos(this.r)
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};
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var p2 = {
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x: this.x + this.half_size * Math.sin(this.r + full),
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y: this.y + this.half_size * Math.cos(this.r + full)
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};
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var p3 = {
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x: this.x + this.half_size * Math.sin(this.r + full * 2),
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y: this.y + this.half_size * Math.cos(this.r + full * 2)
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};
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var p4 = {
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x: this.x + this.half_size * Math.sin(this.r + full * 3),
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y: this.y + this.half_size * Math.cos(this.r + full * 3)
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};
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return {
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p1: p1,
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p2: p2,
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p3: p3,
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p4: p4
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};
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}
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this.rotate = function() {
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var speed = (60 - this.half_size) / 20;
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this.r += speed * 0.002;
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this.x += speed;
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this.y += speed;
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}
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this.draw = function() {
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var dots = this.getDots();
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ctx.beginPath();
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ctx.moveTo(dots.p1.x, dots.p1.y);
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ctx.lineTo(dots.p2.x, dots.p2.y);
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ctx.lineTo(dots.p3.x, dots.p3.y);
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ctx.lineTo(dots.p4.x, dots.p4.y);
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ctx.fillStyle = this.color;
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ctx.fill();
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if (this.y - this.half_size > c.height) {
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this.y -= c.height + 100;
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}
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if (this.x - this.half_size > c.width) {
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this.x -= c.width + 100;
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}
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}
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this.drawShadow = function() {
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var dots = this.getDots();
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var angles = [];
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var points = [];
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for (let dot in dots) {
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var angle = Math.atan2(light.y - dots[dot].y, light.x - dots[dot].x);
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var endX = dots[dot].x + this.shadow_length * Math.sin(-angle - Math.PI / 2);
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var endY = dots[dot].y + this.shadow_length * Math.cos(-angle - Math.PI / 2);
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angles.push(angle);
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points.push({
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endX: endX,
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endY: endY,
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startX: dots[dot].x,
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startY: dots[dot].y
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});
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};
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for (var i = points.length - 1; i >= 0; i--) {
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var n = i == 3 ? 0 : i + 1;
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ctx.beginPath();
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ctx.moveTo(points[i].startX, points[i].startY);
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ctx.lineTo(points[n].startX, points[n].startY);
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ctx.lineTo(points[n].endX, points[n].endY);
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ctx.lineTo(points[i].endX, points[i].endY);
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ctx.fillStyle = "#2c343f";
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ctx.fill();
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};
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}
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}
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var boxes = [];
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function draw() {
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ctx.clearRect(0, 0, c.width, c.height);
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drawLight();
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for (var i = 0; i < boxes.length; i++) {
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boxes[i].rotate();
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boxes[i].drawShadow();
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};
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for (var i = 0; i < boxes.length; i++) {
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collisionDetection(i)
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boxes[i].draw();
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};
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requestAnimationFrame(draw);
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}
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resize();
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draw();
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while (boxes.length < 14) {
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boxes.push(new Box());
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}
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window.addEventListener('resize', resize);
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c.onmousemove = function(e) {
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light.x = e.offsetX == undefined ? e.layerX : e.offsetX;
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light.y = e.offsetY == undefined ? e.layerY : e.offsetY;
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}
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function collisionDetection(b) {
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for (var i = boxes.length - 1; i >= 0; i--) {
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if(i != b) {
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var dx = (boxes[b].x + boxes[b].half_size) - (boxes[i].x + boxes[i].half_size);
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var dy = (boxes[b].y + boxes[b].half_size) - (boxes[i].y + boxes[i].half_size);
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var d = Math.sqrt(dx * dx + dy * dy);
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if (d < boxes[b].half_size + boxes[i].half_size) {
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boxes[b].half_size = boxes[b].half_size > 1 ? boxes[b].half_size-=1 : 1;
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boxes[i].half_size = boxes[i].half_size > 1 ? boxes[i].half_size-=1 : 1;
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}
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}
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}
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}
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}
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