Small ResourceManager refactor, add ResourceSaver<T>.

TestGame/TestGame.cs

@@ -5,6 +5,8 @@ using DaggerFramework.Rendering;
 using DaggerFramework.Audio;
 using DaggerFramework.Resources;
 using DaggerFramework.SceneGraph;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 
 public class TestGame : Game
@@ -17,6 +19,8 @@ public class TestGame : Game
         _audioBackend = new FmodAudioBackend();
         _inputHandler = new RaylibInputHandler();
 
+        _resourceManager.AddResourceSaverAssociation(new SerializedSceneSaver());
+
         _renderer.CreateAndInitialize(new WindowSettings()
         {
             Title = "Test Game",
@@ -29,7 +33,13 @@ public class TestGame : Game
 
         _audioBackend.Initialize();
 
-        _scene = new Scene(_renderer, _inputHandler, _audioBackend, _resourceManager);
+        _scene = new Scene(new SceneSettings()
+        {
+            Renderer = _renderer,
+            AudioBackend = _audioBackend,
+            InputHandler = _inputHandler,
+            ResourceManager = _resourceManager
+        });
 
         _uiLayer = new UiLayer();
         _worldLayer = new EntityLayer();
@@ -71,6 +81,13 @@ public class TestGame : Game
 
         _scene.AddLayer("UI", _uiLayer!);
 
+        SerializedScene serializedScene;
+
+        if (_scene!.TrySerialize(out serializedScene))
+        {
+            _resourceManager.TrySave(Path.Combine(_resourceManager.ResourceRoot, "main.scene"), in serializedScene);
+        }
+
         _scene.Start();
     }