World sounds are local: fade with distance and pan (distant sizzles snapped constantly)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/ui/events.js

@@ -11,7 +11,7 @@ function drainEvents() {
       const m = MILESTONES.find(x => x.id === e.id);
       if (m && !['bit1', 'bit2', 'bit3', 'tank'].includes(m.id)) { showCard({ kind: 'Milestone', title: m.title, body: [m.msg, m.reward], accent: 'milestone' }); playSfx('milestone'); }
     } else if (e.t === 'cast_ready') {
-      playSfx('cast');
+      playSfx('cast', undefined, e.x, e.y);
     } else if (e.t === 'upgrade') {
       playSfx('upgrade'); if (SET.shake) R.shake = 1.4;
       showCard({ kind: e.kind === 'bit' ? 'Drill bit upgraded' : 'Bag upgraded', title: e.kind === 'bit' ? BIT_TIERS[e.tier].name : TANK_TIERS[e.tier].name, accent: 'milestone',
@@ -36,7 +36,7 @@ function drainEvents() {
     }
     else if (e.t === 'claim_paid') { showCard({ kind: 'Claim', title: 'The land is yours', accent: 'milestone', hold: 1.5, body: ['You have paid off the claim on this land.', 'Keep filling orders: bigger buyers bring bigger ones. The ledger has bigger goals too.'] }); playSfx('milestone'); }
     else if (e.t === 'sprout') { showCard({ kind: 'Discovery', title: 'A sapling', swatch: ACORN, body: ['An acorn on soil under open sky has sprouted.', 'It grows into a tree in about a minute and a half. Keep the space above it clear.'] }); playSfx('discover'); }
-    else if (e.t === 'sfx') { if (e.s) playSfx(e.s, e.a); }
+    else if (e.t === 'sfx') { if (e.s) playSfx(e.s, e.a, e.x, e.y); }
     else if (e.t === 'toast') { if (e.text) toast(e.text); }
   }
 }