[claude] Add floating commit banner sprites (#116) (#195)

app.js

@@ -361,6 +361,31 @@ function animate() {
   if (photoMode) {
     orbitControls.update();
   }
+
+  // Animate floating commit banners
+  const FADE_DUR = 1.5;
+  commitBanners.forEach(banner => {
+    const ud = banner.userData;
+    if (ud.spawnTime === null) {
+      if (elapsed < ud.startDelay) return;
+      ud.spawnTime = elapsed;
+    }
+    const age = elapsed - ud.spawnTime;
+    let opacity;
+    if (age < FADE_DUR) {
+      opacity = age / FADE_DUR;
+    } else if (age < ud.lifetime - FADE_DUR) {
+      opacity = 1;
+    } else if (age < ud.lifetime) {
+      opacity = (ud.lifetime - age) / FADE_DUR;
+    } else {
+      ud.spawnTime = elapsed + 3;
+      opacity = 0;
+    }
+    banner.material.opacity = opacity * 0.85;
+    banner.position.y = ud.baseY + Math.sin(elapsed * ud.floatSpeed + ud.floatPhase) * 0.4;
+  });
+
   composer.render();
 }
 
@@ -507,3 +532,97 @@ document.addEventListener('keydown', (e) => {
 window.addEventListener('beforeunload', () => {
   wsClient.disconnect();
 });
+
+// === COMMIT BANNERS ===
+const commitBanners = [];
+
+/**
+ * Creates a canvas texture for a commit banner.
+ * @param {string} hash - Short commit hash
+ * @param {string} message - Commit subject line
+ * @returns {THREE.CanvasTexture}
+ */
+function createCommitTexture(hash, message) {
+  const canvas = document.createElement('canvas');
+  canvas.width = 512;
+  canvas.height = 64;
+  const ctx = canvas.getContext('2d');
+
+  ctx.fillStyle = 'rgba(0, 0, 16, 0.75)';
+  ctx.fillRect(0, 0, 512, 64);
+
+  ctx.strokeStyle = '#4488ff';
+  ctx.lineWidth = 1;
+  ctx.strokeRect(0.5, 0.5, 511, 63);
+
+  ctx.font = 'bold 11px "Courier New", monospace';
+  ctx.fillStyle = '#4488ff';
+  ctx.fillText(hash, 10, 20);
+
+  ctx.font = '12px "Courier New", monospace';
+  ctx.fillStyle = '#ccd6f6';
+  const displayMsg = message.length > 54 ? message.slice(0, 54) + '\u2026' : message;
+  ctx.fillText(displayMsg, 10, 46);
+
+  return new THREE.CanvasTexture(canvas);
+}
+
+/**
+ * Fetches recent commits and spawns floating banner sprites.
+ */
+async function initCommitBanners() {
+  let commits;
+  try {
+    const res = await fetch(
+      'http://143.198.27.163:3000/api/v1/repos/Timmy_Foundation/the-nexus/commits?limit=5',
+      { headers: { 'Authorization': 'token dc0517a965226b7a0c5ffdd961b1ba26521ac592' } }
+    );
+    if (!res.ok) throw new Error('fetch failed');
+    const data = await res.json();
+    commits = data.map(/** @type {(c: any) => {hash: string, message: string}} */ c => ({
+      hash: c.sha.slice(0, 7),
+      message: c.commit.message.split('\n')[0],
+    }));
+  } catch {
+    commits = [
+      { hash: 'a1b2c3d', message: 'feat: depth of field effect on distant objects' },
+      { hash: 'e4f5g6h', message: 'feat: photo mode with orbit controls' },
+      { hash: 'i7j8k9l', message: 'feat: sovereignty easter egg animation' },
+      { hash: 'm0n1o2p', message: 'feat: overview mode bird\'s-eye view' },
+      { hash: 'q3r4s5t', message: 'feat: star field and constellation lines' },
+    ];
+  }
+
+  const spreadX = [-7, -3.5, 0, 3.5, 7];
+  const spreadY = [1.0, -1.5, 2.2, -0.8, 1.6];
+  const spreadZ = [-1.5, -2.5, -1.0, -2.0, -1.8];
+
+  commits.forEach((commit, i) => {
+    const texture = createCommitTexture(commit.hash, commit.message);
+    const material = new THREE.SpriteMaterial({
+      map: texture,
+      transparent: true,
+      opacity: 0,
+      depthWrite: false,
+    });
+    const sprite = new THREE.Sprite(material);
+    sprite.scale.set(12, 1.5, 1);
+    sprite.position.set(
+      spreadX[i % spreadX.length],
+      spreadY[i % spreadY.length],
+      spreadZ[i % spreadZ.length]
+    );
+    sprite.userData = {
+      baseY: spreadY[i % spreadY.length],
+      floatPhase: (i / commits.length) * Math.PI * 2,
+      floatSpeed: 0.25 + i * 0.07,
+      startDelay: i * 2.5,
+      lifetime: 12 + i * 1.5,
+      spawnTime: /** @type {number|null} */ (null),
+    };
+    scene.add(sprite);
+    commitBanners.push(sprite);
+  });
+}
+
+initCommitBanners();