add presentation mode: implement presentation logic, QR code support, animated quotes, assets display, and emotes

cmd/client/web/game.js

@@ -684,6 +684,21 @@ document.addEventListener('DOMContentLoaded', () => {
         document.getElementById('playerName').value = savedName;
     }
 
+    // Auto-Join if URL parameter ?room=XYZ is present
+    const urlParams = new URLSearchParams(window.location.search);
+    const roomParam = urlParams.get('room');
+    if (roomParam) {
+        document.getElementById('joinRoomCode').value = roomParam;
+        
+        // Wait for WASM to be ready, then auto-join
+        const checkWASM = setInterval(() => {
+            if (wasmReady) {
+                clearInterval(checkWASM);
+                joinRoom();
+            }
+        }, 100);
+    }
+
     // Load local highscore
     const highscore = localStorage.getItem('escape_local_highscore') || 0;
     const hsElement = document.getElementById('localHighscore');