fix: loading screen

lib/assets_manager/cubit/assets_manager_cubit.dart

@@ -31,8 +31,12 @@ class AssetsManagerCubit extends Cubit<AssetsManagerState> {
       ),
     );
     final all = state.loadables.map((loadable) async {
+      try {
         await loadable;
         emit(state.copyWith(loaded: [...state.loaded, loadable]));
+      } catch (error, stackTrace) {
+        emit(state.copyWith(error: '$error'));
+      }
     }).toList();
     await Future.wait(all);
   }

lib/assets_manager/cubit/assets_manager_state.dart

@@ -8,6 +8,7 @@ class AssetsManagerState extends Equatable {
   const AssetsManagerState({
     required this.loadables,
     required this.loaded,
+    this.error,
   });
 
   /// {@macro assets_manager_state}
@@ -20,22 +21,26 @@ class AssetsManagerState extends Equatable {
   /// List of loaded futures
   final List<Future> loaded;
 
+  final String? error;
+
   /// Returns a value between 0 and 1 to indicate the loading progress
   double get progress =>
       loadables.isEmpty ? 0 : loaded.length / loadables.length;
 
   /// Only returns false if all the assets have been loaded
-  bool get isLoading => progress != 1;
+  bool get isLoading => progress != 1 && error == null;
 
   /// Returns a copy of this instance with the given parameters
   /// updated
   AssetsManagerState copyWith({
     List<Future>? loadables,
     List<Future>? loaded,
+    String? error,
   }) {
     return AssetsManagerState(
       loadables: loadables ?? this.loadables,
       loaded: loaded ?? this.loaded,
+      error: error ?? this.error,
     );
   }
 

lib/assets_manager/views/assets_loading_page.dart

@@ -17,6 +17,8 @@ class AssetsLoadingPage extends StatelessWidget {
   Widget build(BuildContext context) {
     final l10n = context.l10n;
     final headline1 = Theme.of(context).textTheme.headline1;
+    return BlocBuilder<AssetsManagerCubit, AssetsManagerState>(
+      builder: (context, state) {
         return Container(
           decoration: const CrtBackground(),
           child: Center(
@@ -35,15 +37,18 @@ class AssetsLoadingPage extends StatelessWidget {
                 const SizedBox(height: 40),
                 FractionallySizedBox(
                   widthFactor: 0.8,
-              child: BlocBuilder<AssetsManagerCubit, AssetsManagerState>(
+                  child: PinballLoadingIndicator(value: state.progress),
-                builder: (context, state) {
-                  return PinballLoadingIndicator(value: state.progress);
-                },
                 ),
+                if (state.error != null)
+                  Text(
+                    state.error!,
+                    style: Theme.of(context).textTheme.headline4,
                   ),
               ],
             ),
           ),
         );
+      },
+    );
   }
 }

lib/game/pinball_game.dart

@@ -111,7 +111,7 @@ class PinballGame extends PinballForge2DGame
                 children: [
                   ZCanvasComponent(
                     children: [
-                      if (!platformHelper.isMobile) ArcadeBackground(),
+                      ArcadeBackground(),
                       BoardBackgroundSpriteComponent(),
                       Boundaries(),
                       Backbox(