Do Widgets tutorial (#1)

src/tutFun.dart

@@ -0,0 +1,17 @@
+library;
+
+import 'package:flutter/material.dart';
+import 'game.dart';
+
+Color tutTileColor(HitType t) {
+    if (t == HitType.hit) {
+        return Colors.green;
+    }
+    if (t == HitType.partial) {
+        return Colors.yellow;
+    }
+    if (t == HitType.miss) {
+        return Colors.grey;
+    }
+    return Colors.white;
+}