celebrations

src/engine/audio.js

@@ -260,6 +260,38 @@ class SoundEngine {
       osc.stop(now + delay + 0.36);
     });
   }
+
+  // Triumphant fanfare for a perfect board: rising arpeggio, big chord, sparkles
+  playPerfect() {
+    if (this.muted) return;
+    this.initContext();
+    if (!this.ctx) return;
+
+    const now = this.ctx.currentTime;
+    const tone = (freq, start, dur, type = 'triangle', vol = 0.12) => {
+      const osc = this.ctx.createOscillator();
+      const gain = this.ctx.createGain();
+      osc.type = type;
+      osc.frequency.setValueAtTime(freq, now + start);
+      gain.gain.setValueAtTime(0.0001, now + start);
+      gain.gain.exponentialRampToValueAtTime(vol, now + start + 0.02);
+      gain.gain.exponentialRampToValueAtTime(0.001, now + start + dur);
+      osc.connect(gain);
+      gain.connect(this.ctx.destination);
+      osc.start(now + start);
+      osc.stop(now + start + dur + 0.05);
+    };
+
+    // C major arpeggio climbing two octaves
+    [523.25, 659.25, 783.99, 1046.5, 1318.51, 1567.98].forEach((f, i) => tone(f, i * 0.09, 0.3));
+
+    // Sustained final chord (C - E - G - C)
+    [523.25, 659.25, 783.99, 1046.5].forEach(f => tone(f, 0.6, 1.6, 'triangle', 0.1));
+    tone(261.63, 0.6, 1.6, 'sine', 0.12);
+
+    // High sparkle shimmer
+    [2093, 2637, 3136, 2637, 3520, 4186].forEach((f, i) => tone(f, 0.75 + i * 0.11, 0.25, 'sine', 0.04));
+  }
 }
 
 export const sound = new SoundEngine();