fix: preserve gameStatus when switching game modes

- Stop passing gameMode as dependency to useGameStatus initialization
- Create useGameStatus once with default 'letters' mode
- Add setGameMode method to update mode via ref without recreating hook
- Update gameMode via effect in useGame when it changes
- Fixes issue where switching to letters mode and starting game would reset to waiting

src/types.ts

@@ -107,6 +107,7 @@ export type GameStatusManager = {
   updatePlayerX: (x: number) => void;
   handleTypedLetter: (letter: string) => void;
   setGameLoopCallback: (callback: (deltaTime: number, letters: FallingLetter[]) => void) => void;
+  setGameMode: (mode: GameMode) => void;
   addCorrect: () => void;
   addMissed: () => void;
   addDeath: () => void;

src/useGame/useGame.ts

@@ -14,7 +14,7 @@ export function useGame(
 
   const boardManager = useBoard();
   const cursorManager = useCursor();
-  const gameStatusManager = useGameStatus(undefined, gameMode);
+  const gameStatusManager = useGameStatus();
 
   // Wrap renderBoard to include player position
   const renderBoardWrapped = (letters: any = []) => {
@@ -35,6 +35,11 @@ export function useGame(
     renderBoardWrapped(letters);
   };
 
+  // Update gameMode when it changes (without recreating gameStatus state)
+  useEffect(() => {
+    gameStatusManager.setGameMode(gameMode);
+  }, [gameMode, gameStatusManager]);
+
   // Set the game loop callback
   useEffect(() => {
     gameStatusManager.setGameLoopCallback(handleGameLoopTick);

src/useGameStatus/useGameStatus.ts

@@ -165,6 +165,10 @@ export function useGameStatus(onGameLoopTick?: (deltaTime: number, letters: Fall
     onGameLoopTickRef.current = callback;
   }, []);
 
+  const setGameMode = useCallback((mode: GameMode) => {
+    gameModeRef.current = mode;
+  }, []);
+
   const addCorrect = useCallback(() => {
     setScore(prev => prev + 1);
     setCorrect(prev => prev + 1);
@@ -189,6 +193,7 @@ export function useGameStatus(onGameLoopTick?: (deltaTime: number, letters: Fall
     shipExplosionTime,
     updatePlayerX,
     setGameLoopCallback,
+    setGameMode,
     addCorrect,
     addMissed,
     addDeath,