Add runtime networking APIs

lib/runtime/game/flame_lua_game.dart

@@ -12,6 +12,7 @@ import '../events/runtime_event_dispatcher.dart';
 import '../lifecycle/runtime_session.dart';
 import '../models/game_diff.dart';
 import '../models/runtime_event.dart';
+import '../network/runtime_network_manager.dart';
 import '../packages/game_package.dart';
 import '../packages/game_package_activation_controller.dart';
 import '../packages/game_package_repository.dart';
@@ -20,6 +21,7 @@ import '../protocol/runtime_protocol.dart';
 import '../rendering/render_tree_controller.dart';
 import '../display/runtime_viewport.dart';
 import '../resources/game_resource_manager.dart';
+import '../scripting/runtime_script_services.dart';
 import '../scripting/script_engine.dart';
 import 'runtime_locale.dart';
 import 'runtime_options.dart';
@@ -66,6 +68,7 @@ class FlameLuaGame extends FlameGame with PanDetector, ScrollDetector {
   late final RuntimeAudioManager _audio;
   late final RenderTreeController _renderTree;
   late final PositionComponent _viewportRoot;
+  RuntimeNetworkManager? _network;
   RuntimeViewportConfig? _viewportConfig;
   late final CommandExecutor _commands;
   RuntimeSession? _session;
@@ -102,6 +105,11 @@ class FlameLuaGame extends FlameGame with PanDetector, ScrollDetector {
     _session = session;
 
     try {
+      final network = RuntimeNetworkManager(
+        eventSink: _emitEvent,
+        diagnostics: diagnostics,
+      );
+      _network = network;
       final activation =
           await PackageActivationController(
             repository: _packageRepository,
@@ -111,6 +119,7 @@ class FlameLuaGame extends FlameGame with PanDetector, ScrollDetector {
             resourceManagerFactory: _createResourceManager,
             audioManagerFactory: _createAudioManager,
             scriptEngineFactory: _scriptEngineFactory,
+            scriptServices: RuntimeScriptServices(network: network),
             store: StablePackageStore(runtimeOptions: runtimeOptions),
             assetFallback: AssetGamePackageRepository(
               runtimeOptions: runtimeOptions,
@@ -159,6 +168,8 @@ class FlameLuaGame extends FlameGame with PanDetector, ScrollDetector {
       _runtimeInitialized = true;
       _applyDiff(activation.initialDiff);
     } catch (error) {
+      _network?.dispose();
+      _network = null;
       session.dispose();
       loadError = error.toString();
       diagnostics.record(
@@ -336,6 +347,8 @@ class FlameLuaGame extends FlameGame with PanDetector, ScrollDetector {
     _events?.dispose();
     if (_runtimeInitialized) {
       _commands.dispose();
+      _network?.dispose();
+      _network = null;
       _renderTree.clear();
       _audio.dispose();
       _resources.dispose();