flutter: 重构 showTips()

src/ui/flutter/lib/widgets/game_page.dart

@@ -63,23 +63,20 @@ class _GamePageState extends State<GamePage> {
   void showTips() {
     final winner = Game.shared.position.winner;
 
-    switch (winner) {
+    Map<String, String> colorWinStrings = {
-      case Color.nobody:
+      Color.black: S.of(context).blackWin,
-        if (Game.shared.position.phase == Phase.placing) {
+      Color.white: S.of(context).whiteWin,
-          changeStatus(S.of(context).tipPlace);
+      Color.draw: S.of(context).draw
-        } else if (Game.shared.position.phase == Phase.moving) {
+    };
-          changeStatus(S.of(context).tipMove);
+
-        }
+    if (winner == Color.nobody) {
-        break;
+      if (Game.shared.position.phase == Phase.placing) {
-      case Color.black:
+        changeStatus(S.of(context).tipPlace);
-        changeStatus(S.of(context).blackWin);
+      } else if (Game.shared.position.phase == Phase.moving) {
-        break;
+        changeStatus(S.of(context).tipMove);
-      case Color.white:
+      }
-        changeStatus(S.of(context).whiteWin);
+    } else {
-        break;
+      changeStatus(colorWinStrings[winner]);
-      case Color.draw:
-        changeStatus(S.of(context).draw);
-        break;
     }
 
     showGameResult(winner);