rendering update

lib/classic.dart

@@ -23,8 +23,8 @@ class _ClassicGameState extends State<ClassicGame> {
     TTCState.empty,
     TTCState.empty,
   ];
-  bool ended = false;
-  TTCState? winner;
+  TTCState get winner => Util.checkWin(data);
+  bool get ended => winner != TTCState.empty;
 
   String get turnText => switch (turn) {
         TTCState.empty => "",
@@ -32,13 +32,7 @@ class _ClassicGameState extends State<ClassicGame> {
         TTCState.o => "O",
       };
 
-  void _nextTurn() {
-    turn = switch (turn) {
-      TTCState.x => TTCState.o,
-      TTCState.o => TTCState.x,
-      _ => TTCState.x
-    };
-  }
+  void _nextTurn() => turn = Util.nextTurn(turn);
 
   Widget _invalidChoiceAlert(TTCState existingValue) {
     return Dialog(
@@ -52,7 +46,7 @@ class _ClassicGameState extends State<ClassicGame> {
               "INVALID CHOICE",
               style: TextStyle(fontWeight: FontWeight.bold),
             ),
-            Text("${existingValue.name.toUpperCase()} already claimed that"),
+            Text("${Util.stateText(existingValue)} already claimed that"),
             ElevatedButton(
                 onPressed: () => Navigator.pop(context),
                 child: const Text("Ok")),
@@ -80,10 +74,6 @@ class _ClassicGameState extends State<ClassicGame> {
 
     setState(() {
       data[index] = turn;
-      winner = Util.checkWin(data);
-      if (winner != null && winner != TTCState.empty) {
-        ended = true;
-      }
       _nextTurn();
     });
   }
@@ -103,7 +93,7 @@ class _ClassicGameState extends State<ClassicGame> {
                     "GAME OVER",
                     style: TextStyle(fontWeight: FontWeight.bold),
                   ),
-                  Text("${winner?.name.toUpperCase()} has already won"),
+                  Text("${Util.stateText(winner)} has already won"),
                   ElevatedButton(
                       onPressed: () => Navigator.pop(context),
                       child: const Text("Ok")),
@@ -122,7 +112,7 @@ class _ClassicGameState extends State<ClassicGame> {
         const Spacer(flex: 5),
         Center(
             child: Text(
-          !ended ? "$turnText's turn" : "${winner?.name.toUpperCase()} wins",
+          !ended ? "$turnText's turn" : "${Util.stateText(winner)} wins",
           style: const TextStyle(fontSize: 30, fontWeight: FontWeight.bold),
         )),
         const Spacer(flex: 1),