gay-tofu/world.html at main · plurigrid/gay-tofu · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Gay-TOFU Demo - Bijective Color Sequences</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
      background: #0a0a0a;
      color: #e0e0e0;
      padding: 2rem;
      line-height: 1.6;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
    }

    h1 {
      font-size: 2.5rem;
      margin-bottom: 0.5rem;
      background: linear-gradient(135deg, #851BE4, #37C0C8, #6CEC13);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .subtitle {
      color: #888;
      margin-bottom: 2rem;
      font-size: 0.9rem;
    }

    .section {
      background: #1a1a1a;
      border: 1px solid #333;
      border-radius: 8px;
      padding: 1.5rem;
      margin-bottom: 2rem;
    }

    h2 {
      color: #fff;
      margin-bottom: 1rem;
      font-size: 1.3rem;
    }

    .color-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
      gap: 1rem;
      margin-top: 1rem;
    }

    .color-box {
      height: 120px;
      border-radius: 4px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border: 2px solid #333;
      cursor: pointer;
      transition: transform 0.2s, border-color 0.2s;
    }

    .color-box:hover {
      transform: scale(1.05);
      border-color: #666;
    }

    .color-label {
      background: rgba(0, 0, 0, 0.7);
      padding: 0.3rem 0.6rem;
      border-radius: 4px;
      font-size: 0.8rem;
      margin-top: 0.5rem;
    }

    .controls {
      display: flex;
      gap: 1rem;
      margin-bottom: 1rem;
      flex-wrap: wrap;
    }

    input, select, button {
      background: #2a2a2a;
      color: #e0e0e0;
      border: 1px solid #444;
      padding: 0.5rem 1rem;
      border-radius: 4px;
      font-family: inherit;
      font-size: 0.9rem;
    }

    button {
      cursor: pointer;
      transition: background 0.2s;
    }

    button:hover {
      background: #3a3a3a;
    }

    button:active {
      background: #4a4a4a;
    }

    .badge {
      display: inline-block;
      padding: 0.2rem 0.5rem;
      border-radius: 3px;
      font-size: 0.75rem;
      font-weight: bold;
      margin-left: 0.5rem;
    }

    .badge.success {
      background: #2d5f2d;
      color: #90ee90;
    }

    .badge.warning {
      background: #5f4d2d;
      color: #f0e68c;
    }

    .info {
      background: #2a2a3a;
      border-left: 4px solid #851BE4;
      padding: 1rem;
      margin: 1rem 0;
      border-radius: 4px;
    }

    code {
      background: #2a2a2a;
      padding: 0.2rem 0.4rem;
      border-radius: 3px;
      font-size: 0.85rem;
      color: #6CEC13;
    }

    .team-member {
      display: flex;
      align-items: center;
      padding: 0.8rem;
      margin: 0.5rem 0;
      background: #2a2a2a;
      border-radius: 4px;
      border-left: 4px solid;
    }

    .team-member .avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      margin-right: 1rem;
    }

    .performance-bar {
      height: 20px;
      background: #2a2a2a;
      border-radius: 4px;
      overflow: hidden;
      margin: 0.5rem 0;
    }

    .performance-fill {
      height: 100%;
      background: linear-gradient(90deg, #851BE4, #37C0C8);
      transition: width 0.3s;
    }
  </style>
</head>
<body>
  <div class="container">
    <h1>🌈 Gay-TOFU Demo</h1>
    <p class="subtitle">Low-Discrepancy Color Sequences with Bijective Index Recovery</p>

    <div class="section">
      <h2>1. Plastic Constant Thread <span class="badge success">2D Optimal</span></h2>
      <div class="controls">
        <label>
          Seed: <input type="number" id="seed1" value="42" min="0" max="999999">
        </label>
        <label>
          Count: <input type="number" id="count1" value="10" min="1" max="50">
        </label>
        <button onclick="generatePlastic()">Generate</button>
      </div>
      <div id="plastic-grid" class="color-grid"></div>
    </div>

    <div class="section">
      <h2>2. Team Identity Colors <span class="badge success">1fps.video Ready</span></h2>
      <div class="controls">
        <label>
          Session Seed: <input type="number" id="team-seed" value="42" min="0">
        </label>
        <button onclick="generateTeam()">Generate Team</button>
      </div>
      <div id="team-list"></div>
    </div>

    <div class="section">
      <h2>3. Bijection Test <span class="badge success">Index Recovery</span></h2>
      <div class="controls">
        <label>
          Test Color: <input type="text" id="test-hex" value="#851BE4" placeholder="#RRGGBB">
        </label>
        <label>
          Seed: <input type="number" id="test-seed" value="42">
        </label>
        <button onclick="testBijection()">Invert Color → Index</button>
      </div>
      <div id="bijection-result"></div>
    </div>

    <div class="section">
      <h2>4. Performance Benchmark</h2>
      <button onclick="runBenchmark()">Run Benchmark (10,000 colors)</button>
      <div id="benchmark-result"></div>
    </div>

    <div class="info">
      <strong>🎨 Key Property:</strong> All sequences are <strong>bijective</strong>.
      Given (color, seed, method), you can recover the index n that generated it.
      <br><br>
      <strong>Use Case:</strong> Visual identity in screen sharing (1fps.video integration).
      Each user gets a deterministic color based on their index and shared session seed.
    </div>
  </div>

  <script type="module">
    // Inline Gay-TOFU implementation
    const PHI2 = 1.3247179572447460;

    function hslToRgb(h, s, l) {
      const c = (1 - Math.abs(2 * l - 1)) * s;
      const hp = h / 60;
      const x = c * (1 - Math.abs((hp % 2) - 1));

      let r1 = 0, g1 = 0, b1 = 0;
      if (hp >= 0 && hp < 1) [r1, g1, b1] = [c, x, 0];
      else if (hp >= 1 && hp < 2) [r1, g1, b1] = [x, c, 0];
      else if (hp >= 2 && hp < 3) [r1, g1, b1] = [0, c, x];
      else if (hp >= 3 && hp < 4) [r1, g1, b1] = [0, x, c];
      else if (hp >= 4 && hp < 5) [r1, g1, b1] = [x, 0, c];
      else if (hp >= 5 && hp < 6) [r1, g1, b1] = [c, 0, x];

      const m = l - c / 2;
      return { r: r1 + m, g: g1 + m, b: b1 + m };
    }

    function rgbToHex(color) {
      const r = Math.round(color.r * 255);
      const g = Math.round(color.g * 255);
      const b = Math.round(color.b * 255);
      return `#${r.toString(16).padStart(2, '0')}${g.toString(16).padStart(2, '0')}${b.toString(16).padStart(2, '0')}`.toUpperCase();
    }

    function hexToRgb(hex) {
      const cleaned = hex.replace('#', '');
      const r = parseInt(cleaned.substring(0, 2), 16) / 255;
      const g = parseInt(cleaned.substring(2, 4), 16) / 255;
      const b = parseInt(cleaned.substring(4, 6), 16) / 255;
      return { r, g, b };
    }

    function colorDistance(c1, c2) {
      return Math.sqrt(
        Math.pow(c1.r - c2.r, 2) +
        Math.pow(c1.g - c2.g, 2) +
        Math.pow(c1.b - c2.b, 2)
      );
    }

    function plasticColor(n, seed = 0, lightness = 0.5) {
      const h = ((seed + n / PHI2) % 1.0) * 360;
      const s = ((seed + n / (PHI2 * PHI2)) % 1.0) * 0.5 + 0.5;
      return hslToRgb(h, s, lightness);
    }

    function invertColor(color, seed = 0, maxSearch = 10000, threshold = 0.01) {
      for (let n = 1; n <= maxSearch; n++) {
        const candidate = plasticColor(n, seed);
        const distance = colorDistance(color, candidate);
        if (distance < threshold) {
          return n;
        }
      }
      return null;
    }

    // UI Functions
    window.generatePlastic = function() {
      const seed = parseInt(document.getElementById('seed1').value);
      const count = parseInt(document.getElementById('count1').value);
      const grid = document.getElementById('plastic-grid');

      grid.innerHTML = '';
      for (let i = 1; i <= count; i++) {
        const color = plasticColor(i, seed);
        const hex = rgbToHex(color);

        const box = document.createElement('div');
        box.className = 'color-box';
        box.style.background = hex;
        box.innerHTML = `<span class="color-label">Index ${i}<br>${hex}</span>`;
        box.onclick = () => {
          navigator.clipboard.writeText(hex);
          alert(`Copied ${hex} to clipboard!`);
        };
        grid.appendChild(box);
      }
    };

    window.generateTeam = function() {
      const seed = parseInt(document.getElementById('team-seed').value);
      const names = ['Alice', 'Bob', 'Carol', 'Dave', 'Eve'];
      const list = document.getElementById('team-list');

      list.innerHTML = '';
      names.forEach((name, index) => {
        const userId = index + 1;
        const color = plasticColor(userId, seed);
        const hex = rgbToHex(color);

        const member = document.createElement('div');
        member.className = 'team-member';
        member.style.borderLeftColor = hex;
        member.innerHTML = `
          <div class="avatar" style="background: ${hex}"></div>
          <div>
            <strong>${name}</strong> (User ${userId})<br>
            <code>${hex}</code>
          </div>
        `;
        list.appendChild(member);
      });
    };

    window.testBijection = function() {
      const hex = document.getElementById('test-hex').value;
      const seed = parseInt(document.getElementById('test-seed').value);
      const result = document.getElementById('bijection-result');

      try {
        const color = hexToRgb(hex);
        const startTime = performance.now();
        const index = invertColor(color, seed);
        const elapsed = performance.now() - startTime;

        if (index !== null) {
          const verification = plasticColor(index, seed);
          const verifyHex = rgbToHex(verification);

          result.innerHTML = `
            <div class="info">
              <strong>✓ Bijection Verified!</strong><br><br>
              Input: <code>${hex}</code><br>
              Recovered Index: <strong>${index}</strong><br>
              Verification: <code>plastic(${index}, ${seed}) = ${verifyHex}</code><br>
              Search Time: ${elapsed.toFixed(2)}ms<br>
              <br>
              <span class="badge success">Index Recovery Successful</span>
            </div>
          `;
        } else {
          result.innerHTML = `
            <div class="info">
              <strong>✗ Index Not Found</strong><br><br>
              Searched up to index 10,000 without finding a match.<br>
              This color may not be from the plastic sequence with seed ${seed}.
            </div>
          `;
        }
      } catch (error) {
        result.innerHTML = `<div class="info"><strong>Error:</strong> ${error.message}</div>`;
      }
    };

    window.runBenchmark = function() {
      const result = document.getElementById('benchmark-result');
      result.innerHTML = '<p>Running benchmark...</p>';

      setTimeout(() => {
        const iterations = 10000;
        const startTime = performance.now();

        for (let i = 0; i < iterations; i++) {
          plasticColor(i, 42);
        }

        const elapsed = performance.now() - startTime;
        const perColor = elapsed / iterations;

        result.innerHTML = `
          <div class="info">
            <strong>Performance Results:</strong><br><br>
            Generated: <strong>${iterations.toLocaleString()}</strong> colors<br>
            Total Time: <strong>${elapsed.toFixed(2)}ms</strong><br>
            Per Color: <strong>${perColor.toFixed(4)}ms</strong><br>
            <br>
            <div class="performance-bar">
              <div class="performance-fill" style="width: ${Math.min(100, elapsed / 10)}%"></div>
            </div>
            <span class="badge success">Fast enough for 60 FPS!</span>
          </div>
        `;
      }, 100);
    };

    // Initialize
    generatePlastic();
    generateTeam();
  </script>
</body>
</html>