Improve manage snake size

fastlane/metadata/android/en-US/changelogs/21.txt

+Improve snake length management.

fastlane/metadata/android/fr-FR/changelogs/21.txt

+Amélioration de la gestion de la longueur du serpent.

lib/cubit/activity/activity_cubit.dart

@@ -107,8 +107,13 @@ class ActivityCubit extends HydratedCubit<ActivityState> {
     refresh();
   }
 
-  void moveSnake([bool enlarge = false]) {
-    state.currentActivity.moveSnake(enlarge);
+  void moveSnake() {
+    state.currentActivity.moveSnake();
+    refresh();
+  }
+
+  void updateSnakeSize(int delta) {
+    state.currentActivity.updateSnakeSize(delta);
     refresh();
   }
 

lib/models/activity/activity.dart

@@ -168,7 +168,14 @@ class Activity {
     return true;
   }
 
-  void moveSnake([bool enlarge = false]) {
+  void updateSnakeSize(int delta) {
+    snake.size += delta;
+    if (snake.size < 3) {
+      snake.size = 3;
+    }
+  }
+
+  void moveSnake() {
     if (!canMove()) {
       printlog('boom');
       isFinished = true;
@@ -182,7 +189,7 @@ class Activity {
     snake.cells.add(head);
 
     // Drop tail
-    if (!enlarge) {
+    while (snake.cells.length > snake.size) {
       snake.cells.removeAt(0);
     }
 

lib/models/activity/snake.dart

@@ -8,15 +8,18 @@ enum SnakeDirection { top, left, bottom, right }
 class Snake {
   // Snake's cells: last in list is head
   SnakeCells cells;
+  int size;
   SnakeDirection direction;
 
   Snake({
     required this.cells,
+    required this.size,
     required this.direction,
   });
 
   factory Snake.create(ActivitySettings activitySettings) {
-    // Default init snake size: 3
+    // Default init snake size
+    const int initialLength = 3;
 
     // ~ center cell:
     final int middleColumn = activitySettings.boardSize ~/ 2;
@@ -24,12 +27,11 @@ class Snake {
 
     SnakeCells cells = [
       CellLocation.go(middleRow, middleColumn),
-      CellLocation.go(middleRow, middleColumn),
-      CellLocation.go(middleRow, middleColumn),
     ];
 
     return Snake(
       cells: cells,
+      size: initialLength,
       direction: SnakeDirection.right,
     );
   }
@@ -44,6 +46,7 @@ class Snake {
   Map<String, dynamic>? toJson() {
     return <String, dynamic>{
       'cells': cells,
+      'size': size,
       'direction': direction.toString(),
     };
   }

lib/ui/game/game_top.dart

 import 'package:flutter/material.dart';
+import 'package:flutter_custom_toolbox/flutter_toolbox.dart';
+
+import 'package:snake/cubit/activity/activity_cubit.dart';
+import 'package:snake/models/activity/activity.dart';
 
 class GameTopWidget extends StatelessWidget {
   const GameTopWidget({super.key});
 
   @override
   Widget build(BuildContext context) {
+    return BlocBuilder<ActivityCubit, ActivityState>(
+      builder: (BuildContext context, ActivityState activityState) {
+        final Activity currentActivity = activityState.currentActivity;
+
         return Table(
-      children: const [
+          children: [
             TableRow(
               children: [
                 Column(
                   children: [
-                Text('xxx'),
+                    Text('size: ${currentActivity.snake.size}'),
                   ],
                 ),
                 Column(
@@ -23,5 +31,7 @@ class GameTopWidget extends StatelessWidget {
             ),
           ],
         );
+      },
+    );
   }
 }

lib/ui/widgets/game/controller_bar.dart

@@ -14,26 +14,33 @@ class ControllerBar extends StatelessWidget {
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
           crossAxisAlignment: CrossAxisAlignment.center,
           children: [
-            StyledButton(
+            StyledButton.text(
+              caption: '<',
               color: Colors.orange,
               onPressed: () {
                 BlocProvider.of<ActivityCubit>(context).turnLeft();
               },
-              child: Text('<'),
             ),
-            StyledButton(
+            StyledButton.text(
+              caption: '-',
+              color: Colors.green,
+              onPressed: () {
+                BlocProvider.of<ActivityCubit>(context).updateSnakeSize(-1);
+              },
+            ),
+            StyledButton.text(
+              caption: '+',
               color: Colors.red,
               onPressed: () {
-                BlocProvider.of<ActivityCubit>(context).moveSnake(true);
+                BlocProvider.of<ActivityCubit>(context).updateSnakeSize(1);
               },
-              child: Text('+'),
             ),
-            StyledButton(
+            StyledButton.text(
+              caption: '>',
               color: Colors.orange,
               onPressed: () {
                 BlocProvider.of<ActivityCubit>(context).turnRight();
               },
-              child: Text('>'),
             ),
           ],
         );

pubspec.yaml

@@ -3,7 +3,7 @@ description: snake game
 
 publish_to: "none"
 
-version: 0.5.0+20
+version: 0.5.1+21
 
 environment:
   sdk: "^3.0.0"