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Update index.html
Browse files- index.html +114 -19
index.html
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<!
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<html>
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<!DOCTYPE html>
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<html lang="ko">
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<head>
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<meta charset="UTF-8">
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<title>Pulsar Mini</title>
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<!-- Tailwind CDN (λΉ λ₯Έ νλ‘ν νμ΄νμ©) -->
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<script src="https://cdn.tailwindcss.com"></script>
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<style>
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/* custom utility μ‘°ν© */
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body { @apply bg-gray-900 text-gray-100 flex flex-col items-center py-6 gap-6; }
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canvas { image-rendering: pixelated; }
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</style>
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</head>
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<body>
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<h1 class="text-3xl font-bold">Pulsar Mini</h1>
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<div class="flex flex-wrap gap-4 max-w-4xl w-full justify-center">
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<!-- Canvas μμ -->
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<canvas id="canvas" width="320" height="320" class="border border-gray-700 rounded"></canvas>
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<!-- 컨νΈλ‘€ -->
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<div class="flex flex-col gap-3 w-80">
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<label class="text-sm font-mono">μ½λ:</label>
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<textarea
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id="code"
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rows="4"
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maxlength="300"
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class="w-full p-2 rounded bg-gray-800 font-mono text-xs resize-none outline-none"
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>(x,y,t)=>Math.sin(x*10+t)+Math.cos(y*10+t)</textarea>
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<div class="flex gap-2">
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<button id="play" class="px-3 py-1 rounded bg-green-600 text-sm">βΆ Play</button>
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<button id="pause" class="px-3 py-1 rounded bg-red-600 text-sm hidden">ββ Pause</button>
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<button id="random" class="px-3 py-1 rounded bg-blue-600 text-sm">π² Random</button>
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</div>
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<p class="text-[11px] text-gray-400 leading-snug">
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ν¨μλ <code>(x,y,t,i) => κ°</code> νμμ΄μ΄μΌ ν©λλ€.<br>
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<code>x</code>, <code>y</code> λ 0~1 μ’ν, <code>t</code> λ μ΄, <code>i</code>λ ν½μ
μΈλ±μ€μ
λλ€.<br>
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λ°νκ°μ 0~1 λ²μλ‘ ν΄λ¨νλμ΄ κ·Έλ μ΄μ€μΌμΌ λ°κΈ°λ‘ ννλ©λλ€.
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</p>
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</div>
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</div>
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<script>
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const canvas = document.getElementById('canvas');
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const ctx = canvas.getContext('2d');
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const codeEl = document.getElementById('code');
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const playBtn = document.getElementById('play');
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const pauseBtn= document.getElementById('pause');
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const rndBtn = document.getElementById('random');
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const EXAMPLES = [
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'(x,y,t)=>Math.sin((x+y+t)*6)',
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'(x,y,t)=>Math.sin(x*10+t)+Math.cos(y*10+t)',
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'(x,y,t)=>Math.sin(Math.hypot(x-0.5,y-0.5)*20-t*2)',
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];
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let fn = compile(codeEl.value);
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let playing = false;
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let start = performance.now();
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function compile(src){
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try { return eval(src); }
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catch(e){ console.error(e); return ()=>0; }
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}
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function draw(time){
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const t = (time - start) / 1000;
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const w = canvas.width;
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const h = canvas.height;
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const img = ctx.getImageData(0,0,w,h);
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const data = img.data;
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for(let y=0; y<h; y++){
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for(let x=0; x<w; x++){
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const idx = (y*w + x) * 4;
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const v = Math.max(0, Math.min(1, fn(x/w, y/h, t, idx)));
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const c = v * 255;
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data[idx] = data[idx+1] = data[idx+2] = c;
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data[idx+3] = 255;
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}
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}
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ctx.putImageData(img,0,0);
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if(playing) requestAnimationFrame(draw);
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}
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draw(start);
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// event handlers
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playBtn.addEventListener('click', () => {
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playing = true;
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playBtn.classList.add('hidden');
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pauseBtn.classList.remove('hidden');
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requestAnimationFrame(draw);
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});
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pauseBtn.addEventListener('click', () => {
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playing = false;
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pauseBtn.classList.add('hidden');
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playBtn.classList.remove('hidden');
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});
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codeEl.addEventListener('input', () => {
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fn = compile(codeEl.value);
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});
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rndBtn.addEventListener('click', () => {
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codeEl.value = EXAMPLES[Math.floor(Math.random()*EXAMPLES.length)];
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fn = compile(codeEl.value);
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});
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</script>
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</body>
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</html>
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