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Added particles to light bar
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2e7b6f3338
commit
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3 changed files with 147 additions and 2 deletions
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@ -60,7 +60,7 @@ export function SearchBarInput(props: SearchBarProps) {
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onFocus={() => setFocused(true)}
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onChange={(val) => setSearch(val)}
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value={props.value.searchQuery}
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className="text-search-text w-full flex-1 bg-transparent px-4 py-4 pl-12 placeholder-search-placeholder focus:outline-none sm:py-4 sm:pr-2"
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className="w-full flex-1 bg-transparent px-4 py-4 pl-12 text-search-text placeholder-search-placeholder focus:outline-none sm:py-4 sm:pr-2"
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placeholder={props.placeholder}
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/>
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</Flare.Child>
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@ -19,4 +19,13 @@
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transform: rotate(180deg) translateZ(0px) translateY(400px);
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transform-origin: center center;
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background-repeat: no-repeat;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.lightbar canvas {
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width: 40%;
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height: 300px;
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transform: translateY(-50%) rotate(180deg);
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}
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@ -1,9 +1,145 @@
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import { useEffect, useRef } from "react";
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import "./Lightbar.css";
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class Particle {
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x = 0;
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y = 0;
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radius = 0;
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direction = 0;
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speed = 0;
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lifetime = 0;
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ran = 0;
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constructor(canvas: HTMLCanvasElement) {
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this.reset(canvas);
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this.initialize(canvas);
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}
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reset(canvas: HTMLCanvasElement) {
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this.x = Math.round((Math.random() * canvas.width) / 2 + canvas.width / 4);
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this.y = Math.random() * 100 + 5;
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this.radius = 1 + Math.floor(Math.random() * 0.5);
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this.direction = -((Math.random() * Math.PI) / 2) + Math.PI / 4;
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this.speed = 0.02 + Math.random() * 0.08;
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const second = 60;
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this.lifetime = second * 3 + Math.random() * (second * 30);
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this.ran = 0;
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}
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initialize(canvas: HTMLCanvasElement) {
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this.ran = Math.random() * this.lifetime;
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const baseSpeed = this.speed;
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this.speed = Math.random() * this.lifetime * baseSpeed;
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this.update(canvas);
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this.speed = baseSpeed;
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}
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update(canvas: HTMLCanvasElement) {
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this.ran += 1;
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const addX = this.speed * Math.sin(this.direction);
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const addY = this.speed * Math.cos(this.direction);
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this.x += addX;
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this.y += addY;
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if (this.ran > this.lifetime) {
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this.reset(canvas);
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}
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}
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render(canvas: HTMLCanvasElement) {
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const ctx = canvas.getContext("2d");
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if (!ctx) return;
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ctx.save();
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ctx.beginPath();
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const x = this.ran / this.lifetime;
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const o = (x - x * x) * 4;
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ctx.globalAlpha = Math.max(0, o * 0.8);
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ctx.ellipse(
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this.x,
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this.y,
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this.radius,
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this.radius * 1.5,
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this.direction,
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0,
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Math.PI * 2
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);
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ctx.fillStyle = "white";
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ctx.fill();
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ctx.restore();
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}
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}
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function ParticlesCanvas() {
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const canvasRef = useRef<HTMLCanvasElement>(null);
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useEffect(() => {
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if (!canvasRef.current) return;
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const canvas = canvasRef.current;
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const particles: Particle[] = [];
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canvas.width = canvas.scrollWidth;
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canvas.height = canvas.scrollHeight;
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for (let i = 0; i < 20; i += 1) {
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const particle = new Particle(canvas);
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particles.push(particle);
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}
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let shouldTick = true;
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let handle: ReturnType<typeof requestAnimationFrame> | null = null;
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function particlesLoop() {
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const ctx = canvas.getContext("2d");
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if (!ctx) return;
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if (shouldTick) {
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for (const particle of particles) {
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particle.update(canvas);
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}
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shouldTick = false;
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}
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canvas.width = canvas.scrollWidth;
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canvas.height = canvas.scrollHeight;
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for (const particle of particles) {
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particle.render(canvas);
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}
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handle = requestAnimationFrame(particlesLoop);
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}
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const interval = setInterval(() => {
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shouldTick = true;
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}, 1e3 / 120); // tick 120 times a sec
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particlesLoop();
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return () => {
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if (handle) cancelAnimationFrame(handle);
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clearInterval(interval);
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};
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}, []);
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return <canvas className="particles" ref={canvasRef} />;
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}
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export function Lightbar(props: { className?: string }) {
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return (
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<div className={props.className}>
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<div className="lightbar" />
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<div className="lightbar">
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<ParticlesCanvas />
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</div>
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</div>
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);
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}
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