Draw ripples on mousemove as well
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parent
50b88dec67
commit
398aa43338
9 changed files with 36 additions and 11 deletions
24
client/.gitignore
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24
client/.gitignore
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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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pnpm-debug.log*
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lerna-debug.log*
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node_modules
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dist
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dist-ssr
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*.local
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# Editor directories and files
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.vscode/*
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!.vscode/extensions.json
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.idea
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.DS_Store
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*.suo
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*.ntvs*
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*.njsproj
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*.sln
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*.sw?
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BIN
client/bun.lockb
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BIN
client/bun.lockb
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13
client/index.html
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13
client/index.html
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>ripples | compost.party</title>
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<link rel="stylesheet" href="/src/style.css" type="text/css" media="screen" />
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</head>
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<body>
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<canvas id="canvas"></canvas>
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<script type="module" src="/src/main.ts"></script>
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</body>
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</html>
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16
client/package.json
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16
client/package.json
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{
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"name": "ripples",
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"private": true,
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"version": "0.0.0",
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"type": "module",
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"scripts": {
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"dev": "vite",
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"build": "tsc && vite build",
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"preview": "vite preview"
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},
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"devDependencies": {
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"typescript": "^5.2.2",
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"typescript-language-server": "^4.3.1",
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"vite": "^5.0.8"
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}
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}
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1
client/public/vite.svg
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1
client/public/vite.svg
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<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
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After Width: | Height: | Size: 1.5 KiB |
98
client/src/main.ts
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client/src/main.ts
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const canvas = document.querySelector<HTMLCanvasElement>('#canvas')!
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const ctx = canvas.getContext('2d')!
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const MIN_RADIUS = 20
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const MAX_RADIUS = 200
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const MAX_AGE = 1000 // in milliseconds
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type Point = [number, number]
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type Particle = {
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position: Point
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age: number
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maxRadius: number
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}
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const createParticle = (position: [number, number], maxRadius: number): Particle => ({
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position,
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maxRadius,
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age: 0,
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})
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let state = {
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particles: <Particle[]>[]
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}
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type State = typeof state
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canvas.addEventListener('mousedown', (e) => {
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// TODO Normalize x and y coords
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const particle = createParticle([e.clientX, e.clientY], MAX_RADIUS)
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state.particles.push(particle)
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})
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function* minDist(dist: number) {
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let prev: Point
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while (true) {
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yield (cur: Point) => {
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if (prev == null || Math.sqrt(Math.pow(prev[0]-cur[0], 2) + Math.pow(prev[1]-cur[1], 2)) >= dist) {
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prev = cur
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return true
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}
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return false
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}
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}
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}
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const hasSpace = minDist(70)
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canvas.addEventListener('mousemove', (e) => {
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const shouldSpawn = hasSpace.next().value!
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if (shouldSpawn([e.clientX, e.clientY])) {
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const particle = createParticle([e.clientX, e.clientY], MAX_RADIUS / 3*2)
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state.particles.push(particle)
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}
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})
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const update = (state: State, deltaTime: number): State => ({
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particles: state.particles
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.map(p => ({
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...p,
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age: p.age + deltaTime
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}))
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.filter(p => p.age < MAX_AGE)
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})
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const render = (state: State, ctx: CanvasRenderingContext2D) => {
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ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height)
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for (const particle of state.particles) {
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const progress = (particle.age / MAX_AGE)
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const opacity = Math.min(1, Math.pow(1-progress, 3)) * (particle.maxRadius / MAX_RADIUS)
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ctx.beginPath()
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ctx.strokeStyle = `rgba(40, 40, 40, ${opacity})`
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const [x, y] = particle.position
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const radius = (progress * (particle.maxRadius - MIN_RADIUS)) + MIN_RADIUS
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ctx.ellipse(x, y, radius, radius, 0, 0, Math.PI * 2)
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ctx.stroke()
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}
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}
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let before = Date.now()
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const loop = () => {
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const now = Date.now()
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const dt = now - before
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state = update(state, dt)
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render(state, ctx)
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before = now
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requestAnimationFrame(loop)
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}
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document.addEventListener('DOMContentLoaded', () => {
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canvas.width = canvas.parentElement!.clientWidth
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canvas.height = canvas.parentElement!.clientHeight
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ctx.translate(0.5, 0.5)
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loop()
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})
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10
client/src/style.css
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10
client/src/style.css
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html,
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body {
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min-width: 100wh;
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min-height: 100vh;
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padding: 0;
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margin: 0;
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}
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canvas {
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}
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1
client/src/vite-env.d.ts
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1
client/src/vite-env.d.ts
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/// <reference types="vite/client" />
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23
client/tsconfig.json
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23
client/tsconfig.json
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{
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"compilerOptions": {
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"target": "ES2020",
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"useDefineForClassFields": true,
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"module": "ESNext",
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"lib": ["ES2020", "DOM", "DOM.Iterable"],
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"skipLibCheck": true,
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/* Bundler mode */
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"moduleResolution": "bundler",
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"allowImportingTsExtensions": true,
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"resolveJsonModule": true,
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"isolatedModules": true,
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"noEmit": true,
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/* Linting */
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"strict": true,
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"noUnusedLocals": true,
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"noUnusedParameters": true,
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"noFallthroughCasesInSwitch": true
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},
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"include": ["src"]
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}
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