chore: remove audio debug overlay

game.js

@@ -189,24 +189,27 @@ const SFX = (() => {
 
   function getCtx() {
     if (!ctx) ctx = new (window.AudioContext || window.webkitAudioContext)();
-    if (ctx.state === 'suspended') ctx.resume();
+    if (ctx.state === 'suspended') ctx.resume().catch(() => {});
     return ctx;
   }
 
-  function unlock() {
-    if (!ctx) ctx = new (window.AudioContext || window.webkitAudioContext)();
-    if (ctx.state === 'suspended') ctx.resume().then(() => {});
+  document.addEventListener('touchstart', () => {
+    if (!ctx) {
+      ctx = new (window.AudioContext || window.webkitAudioContext)();
+    } else if (ctx.state === 'suspended') {
+      ctx.resume().catch(() => {});
     }
-  document.addEventListener('touchstart',  unlock, { once: true, passive: true });
-  document.addEventListener('pointerdown', unlock, { once: true, passive: true });
+  }, { passive: true });
+
   document.addEventListener('visibilitychange', () => {
     if (document.visibilityState === 'visible' && ctx && ctx.state === 'suspended') {
-      ctx.resume();
+      ctx.resume().catch(() => {});
     }
   });
 
   function tone(freq, type, vol, attack, sustain, release, when) {
     const c    = getCtx();
+    if (c.state !== 'running') return;
     const t    = when ?? c.currentTime;
     const osc  = c.createOscillator();
     const gain = c.createGain();
@@ -224,11 +227,9 @@ const SFX = (() => {
 
   function seq(notes, type='square', vol=0.18) {
     const c = getCtx();
+    if (c.state !== 'running') return;
     let t = c.currentTime + 0.02;
-    notes.forEach(n => {
-      if (n.f) tone(n.f, type, vol, 0.01, n.d * 0.6, n.d * 0.4, t);
-      t += n.d;
-    });
+    notes.forEach(n => { if (n.f) tone(n.f, type, vol, 0.01, n.d * 0.6, n.d * 0.4, t); t += n.d; });
   }
 
   return {
@@ -237,7 +238,7 @@ const SFX = (() => {
     step()           { tone(180, 'square', 0.04, 0.005, 0.02, 0.03); },
     encounter()      { seq([{f:523,d:.1},{f:659,d:.18}], 'square', 0.22); },
     type()           { tone(880 + Math.random()*200, 'square', 0.03, 0.005, 0.01, 0.02); },
-    select()         { const c = getCtx(); tone(440, 'square', 0.12, 0.005, 0.03, 0.04, c.currentTime + 0.05); },
+    select()         { tone(440, 'square', 0.12, 0.005, 0.03, 0.04); },
     backspace()      { seq([{f:350,d:.05},{f:250,d:.08}], 'triangle', 0.12); },
     correct()        { seq([{f:523,d:.08},{f:659,d:.08},{f:784,d:.08},{f:1047,d:.2}], 'square', 0.18); },
     streak()         { seq([{f:523,d:.06},{f:659,d:.06},{f:784,d:.06},{f:1047,d:.06},{f:1319,d:.2}], 'square', 0.18); },
@@ -1150,11 +1151,11 @@ class Game {
 
   showTitle() {
     this.show('title');
-    SFX.boot();
     this._showController(true);
     const go = () => {
       document.getElementById('screen-title').removeEventListener('click', go);
-      Music.unblock();
+      Music.play();
+      SFX.boot();
       this.showContinueOrName();
     };
     document.getElementById('screen-title').addEventListener('click', go);