Update app.py

app.py

@@ -406,9 +406,13 @@ async def join_game(request: Request):
     if not game:
         raise HTTPException(status_code=404, detail="Game not found.")
 
-    # Prevent duplicate player names.
-    if player_name in game["permissions"]:
-        raise HTTPException(status_code=400, detail="Player name already taken.")
+    # Automatically capitalize the first letter of each word.
+    player_name = " ".join(word.capitalize() for word in player_name.split())
+
+    # Prevent duplicate player names (case-insensitive).
+    existing_names = [name.lower() for name in game["permissions"].keys()]
+    if player_name.lower() in existing_names:
+        return {"success": False, "message": "That name has already been taken."}
 
     game["players"].append(player_name)
     # Properly initialize the new player's permissions.