Added Game Over Screen

lib/main.dart

@@ -15,12 +15,11 @@ class MyApp extends StatelessWidget {
 
   final int gridSize = 8;
 
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Bubble-Twist',
-      debugShowCheckedModeBanner: false, // This removes the debug banner
+      debugShowCheckedModeBanner: false,
       theme: ThemeData(
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
@@ -33,15 +32,6 @@ class MyApp extends StatelessWidget {
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key, required this.title, required this.gridSize});
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
   final String title;
   final int gridSize;
 
@@ -55,6 +45,7 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
   int _score = 0;
   int _time = 0;
   StoneLocation? sl1;
+  bool _isGameOver = false;
 
   @override
   void initState() {
@@ -77,7 +68,11 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
         ],
       ),
       body: Center(
-        child: game.running ? _buildGameGrid() : _buildStartButton(),
+        child: _isGameOver
+            ? _buildGameOverMessage()
+            : game.running
+                ? _buildGameGrid()
+                : _buildStartButton(),
       ),
     );
   }
@@ -93,6 +88,31 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
     );
   }
 
+  Widget _buildGameOverMessage() {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        const Text(
+          'Game Over',
+          style: TextStyle(fontSize: 32, fontWeight: FontWeight.bold),
+        ),
+        const SizedBox(height: 20),
+        Text(
+          'Final Score: $_score',
+          style: const TextStyle(fontSize: 24),
+        ),
+        const SizedBox(height: 20),
+        ElevatedButton(
+          onPressed: () {
+            _isGameOver = false;
+            game.start();
+          },
+          child: const Text('Restart'),
+        ),
+      ],
+    );
+  }
+
   Widget _buildGameGrid() {
     return Column(
       children: [
@@ -171,7 +191,6 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
   }
 
   Color _getColorForStone(Stone? stone) {
-    // Beispielhafte Farben basierend auf dem Stein.
     switch (stone?.getStoneColor()) {
       case StoneColors.red:
         return Colors.red;
@@ -190,7 +209,9 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
 
   @override
   void gameStopped() {
-    // TODO: implement gameStopped
+    setState(() {
+      _isGameOver = true;
+    });
   }
 
   @override
@@ -201,7 +222,6 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
   @override
   void updateStones() {
     setState(() {
-      // _grid aktualisieren
       for (int row = 0; row < widget.gridSize; row++) {
         for (int col = 0; col < widget.gridSize; col++) {
           _grid[row][col] = game.getStone(StoneLocation(row: row, column: col));