Add very basic keyboard support

game/lib/game/game.dart

@@ -1,8 +1,8 @@
-import 'dart:ui';
-
 import 'package:flame/extensions.dart';
 import 'package:flame/game.dart';
 import 'package:flame/input.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
 
 import 'analytics.dart';
 import 'audio.dart';
@@ -25,7 +25,7 @@ import 'scoreboard.dart';
 import 'spawner.dart';
 import 'util.dart';
 
-class MyGame extends FlameGame with TapDetector {
+class MyGame extends FlameGame with TapDetector, KeyboardEvents {
   static Spawner planetSpawner = Spawner(0.12);
 
   // Setup by the flutter components to allow this game instance
@@ -220,13 +220,39 @@ class MyGame extends FlameGame with TapDetector {
 
   @override
   void onTapDown(TapDownInfo details) {
-    if (player.regularJetpack) {
-      player.hoverStart();
-    }
+    actionDown();
   }
 
   @override
   void onTapUp(TapUpInfo details) {
+    actionUp();
+  }
+
+  @override
+  KeyEventResult onKeyEvent(
+    RawKeyEvent event,
+    Set<LogicalKeyboardKey> keysPressed,
+  ) {
+    if (event.logicalKey == LogicalKeyboardKey.space) {
+      if (event is RawKeyDownEvent) {
+        actionDown();
+        return KeyEventResult.handled;
+      } else if (event is RawKeyUpEvent) {
+        actionUp();
+        return KeyEventResult.handled;
+      }
+    }
+
+    return super.onKeyEvent(event, keysPressed);
+  }
+
+  void actionDown() {
+    if (player.regularJetpack) {
+      player.hoverStart();
+    } else if (!player.jetpack) {
+      gravity *= -1;
+    }
+
     if (sleeping) {
       return;
     }
@@ -237,14 +263,14 @@ class MyGame extends FlameGame with TapDetector {
         return;
       }
     }
-    super.onTapUp(details);
     if (showTutorial == 0) {
       showTutorial = -1; // if the player jumps don't show the tutorial
     }
+  }
+
+  void actionUp() {
     if (player.jetpack) {
       player.boost();
-    } else {
-      gravity *= -1;
     }
   }
 

game/lib/screens/game_screen.dart

@@ -28,6 +28,8 @@ class _GameScreenState extends State<GameScreen> {
   bool _showGameOver = false;
   bool _adLoading = false;
 
+  final gameFocusNode = FocusNode();
+
   @override
   void initState() {
     super.initState();
@@ -50,6 +52,8 @@ class _GameScreenState extends State<GameScreen> {
       _playSection = false;
       _playing = true;
     });
+
+    gameFocusNode.requestFocus();
   }
 
   void handleExtraLife() async {
@@ -74,7 +78,7 @@ class _GameScreenState extends State<GameScreen> {
 
     final children = <Widget>[];
 
-    children.add(GameWidget(game: game));
+    children.add(GameWidget(game: game, focusNode: gameFocusNode));
 
     if (_showGameOver) {
       children.add(

game/lib/widgets/game_over.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 
 import 'button.dart';
 import 'gr_container.dart';
@@ -36,7 +37,7 @@ class _Line extends StatelessWidget {
   }
 }
 
-class GameOverContainer extends StatelessWidget {
+class GameOverContainer extends StatefulWidget {
   static const WIDTH = 350.0;
   static const HEIGHT = 320.0;
 
@@ -56,31 +57,57 @@ class GameOverContainer extends StatelessWidget {
     required this.extraLife,
   });
 
+  @override
+  State<GameOverContainer> createState() => _GameOverContainerState();
+}
+
+class _GameOverContainerState extends State<GameOverContainer> {
+  late final keyboardListenerFocusNode = FocusNode();
+
+  @override
+  void initState() {
+    keyboardListenerFocusNode.requestFocus();
+    super.initState();
+  }
+
   @override
   Widget build(BuildContext context) {
-    return GRContainer(
-      width: WIDTH,
-      height: HEIGHT,
-      child: Column(
-        mainAxisAlignment: MainAxisAlignment.center,
-        children: [
-          Label(
-            label: 'Game Over',
-            fontSize: 36,
-            fontColor: PaletteColors.blues.dark,
-          ),
-          const SizedBox(height: 20),
-          _Line('Gems', '$gems'),
-          _Line('Distance', '$distance'),
-          const SizedBox(height: 20),
-          if (showExtraLifeButton)
-            PrimaryButton(
-              label: 'Extra life (ad)',
-              onPress: extraLife,
+    return KeyboardListener(
+      focusNode: keyboardListenerFocusNode,
+      autofocus: true,
+      onKeyEvent: (keyEvent) {
+        if (keyEvent is KeyDownEvent &&
+            keyEvent.logicalKey == LogicalKeyboardKey.space) {
+          widget.playAgain();
+        }
+      },
+      child: GRContainer(
+        width: GameOverContainer.WIDTH,
+        height: GameOverContainer.HEIGHT,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Label(
+              label: 'Game Over',
+              fontSize: 36,
+              fontColor: PaletteColors.blues.dark,
             ),
-          PrimaryButton(label: 'Play again', onPress: playAgain),
-          SecondaryButton(label: 'Back to menu', onPress: goToMainMenu),
-        ],
+            const SizedBox(height: 20),
+            _Line('Gems', '${widget.gems}'),
+            _Line('Distance', '${widget.distance}'),
+            const SizedBox(height: 20),
+            if (widget.showExtraLifeButton)
+              PrimaryButton(
+                label: 'Extra life (ad)',
+                onPress: widget.extraLife,
+              ),
+            PrimaryButton(label: 'Play again', onPress: widget.playAgain),
+            SecondaryButton(
+              label: 'Back to menu',
+              onPress: widget.goToMainMenu,
+            ),
+          ],
+        ),
       ),
     );
   }