Get rendering somewhat working

engine/src/engine/engine.rs

@@ -176,33 +176,18 @@ impl Engine {
             gui_handler: GuiHandler::new(create_info.gui_info, &context)?,
         };
 
-        context
-            .render_core_mut()
-            .add_render_routine::<GuiHandlerRenderer>(10_000_000);
-
-        world.resources.insert(gui_handler);
-
-        // default keyboard navigation
-        let mut direction_mapping = HashMap::new();
-        // direction_mapping.insert(Keycode::A, GuiDirection::Left);
-        // direction_mapping.insert(Keycode::D, GuiDirection::Right);
-        // direction_mapping.insert(Keycode::W, GuiDirection::Up);
-        // direction_mapping.insert(Keycode::S, GuiDirection::Down);
-        direction_mapping.insert(Keycode::Left, GuiDirection::Left);
-        direction_mapping.insert(Keycode::Right, GuiDirection::Right);
-        direction_mapping.insert(Keycode::Up, GuiDirection::Up);
-        direction_mapping.insert(Keycode::Down, GuiDirection::Down);
-
         let engine = Engine {
             asset_manager,
 
             resource_base_path: create_info.resource_base_path,
         };
 
-        world.resources.insert(InputMap { direction_mapping });
+        context
+            .render_core_mut()
+            .add_render_routine::<GuiHandlerRenderer>(10_000_000);
+        context.render_core_mut().add_render_routine::<Scene>(100);
+
         world.resources.insert(context);
-        world.resources.insert(engine);
-        world.resources.insert(engine_settings);
 
         let scene = Scene::new(
             create_info.rasterizer_info,
@@ -211,6 +196,18 @@ impl Engine {
             world,
         )?;
 
+        // default keyboard navigation
+        let mut direction_mapping = HashMap::new();
+        direction_mapping.insert(Keycode::Left, GuiDirection::Left);
+        direction_mapping.insert(Keycode::Right, GuiDirection::Right);
+        direction_mapping.insert(Keycode::Up, GuiDirection::Up);
+        direction_mapping.insert(Keycode::Down, GuiDirection::Down);
+
+        world.resources.insert(gui_handler);
+        world.resources.insert(InputMap { direction_mapping });
+
+        world.resources.insert(engine);
+        world.resources.insert(engine_settings);
         world.resources.insert(scene);
 
         world.add_system(Self::main_system::<T>);

presentation/src/renderbackend.rs

@@ -49,6 +49,52 @@ impl Default for VRTransformations {
     }
 }
 
+struct SceneHandle {
+    type_id: TypeId,
+    priority: u32,
+
+    render: Box<
+        dyn FnMut(
+                &mut CommandBufferRecorder<'_>,
+                &TargetMode<Vec<Arc<Image>>>,
+                &TargetMode<usize>,
+                &mut World,
+            ) -> Result<()>
+            + Send
+            + Sync
+            + 'static,
+    >,
+
+    resize: Box<
+        dyn FnMut(f32, f32, &TargetMode<Vec<Arc<Image>>>, &mut World) -> Result<()>
+            + Send
+            + Sync
+            + 'static,
+    >,
+}
+
+impl SceneHandle {
+    fn new<T: TScene>(priority: u32) -> Self {
+        Self {
+            type_id: TypeId::of::<T>(),
+            priority,
+            render: Box::new(|recorder, images, indices, world| {
+                world
+                    .resources
+                    .get_mut_unchecked::<T>()
+                    .process(recorder, images, indices, world)
+            }),
+
+            resize: Box::new(|width, height, images, world| {
+                world
+                    .resources
+                    .get_mut_unchecked::<T>()
+                    .resize(width, height, images)
+            }),
+        }
+    }
+}
+
 pub struct RenderBackend {
     device: Arc<Device>,
     queue: Arc<Mutex<Queue>>,
@@ -61,7 +107,7 @@ pub struct RenderBackend {
 
     command_buffer: Arc<CommandBuffer>,
 
-    render_routines: Vec<(u32, TypeId)>,
+    render_routines: Vec<SceneHandle>,
 }
 
 impl RenderBackend {
@@ -169,17 +215,13 @@ impl RenderBackend {
         // make a call to the connected scenes
         self.render_routines
             .iter_mut()
-            .try_for_each(|(_, type_id)| -> Result<()> {
-                let scene: &mut dyn TScene = world.resources.get_mut_by_type_id_untyped(*type_id);
-
-                scene.process(
+            .try_for_each(|scene_handle| {
+                (scene_handle.render)(
                     &mut buffer_recorder,
                     &*self.swapchain_images.lock().unwrap(),
                     &image_indices,
                     world,
-                )?;
-
-                Ok(())
+                )
             })?;
 
         Ok(&self.command_buffer)
@@ -205,10 +247,8 @@ impl RenderBackend {
 
         self.render_routines
             .iter_mut()
-            .try_for_each(|(_, type_id)| -> Result<()> {
-                let scene: &mut dyn TScene = world.resources.get_mut_by_type_id_untyped(*type_id);
-
-                scene.resize(width as f32, height as f32, &images)
+            .try_for_each(|scene_handle| {
+                (scene_handle.resize)(width as f32, height as f32, &images, world)
             })?;
 
         Ok(())
@@ -216,15 +256,16 @@ impl RenderBackend {
 
     /// lower priority means it is more important
     pub fn add_render_routine<T: TScene>(&mut self, priority: u32) {
-        self.render_routines.push((priority, TypeId::of::<T>()));
-        self.render_routines.sort_by_key(|(p, _)| *p);
+        self.render_routines.push(SceneHandle::new::<T>(priority));
+        self.render_routines
+            .sort_by_key(|scene_handle| scene_handle.priority);
     }
 
     pub fn remove_render_routine<T: TScene>(&mut self) {
-        if let Some(&(index, _)) = self
+        if let Some(index) = self
             .render_routines
             .iter()
-            .find(|(_, type_id)| *type_id == TypeId::of::<T>())
+            .position(|scene_handle| scene_handle.type_id == TypeId::of::<T>())
         {
             self.render_routines.remove(index as usize);
         }

skybox/src/lib.rs

@@ -52,3 +52,24 @@ impl SkyBox {
         Ok(Self { cube_map })
     }
 }
+
+impl TScene for SkyBox {
+    fn process(
+        &mut self,
+        buffer_recorder: &mut CommandBufferRecorder<'_>,
+        images: &TargetMode<Vec<Arc<Image>>>,
+        indices: &TargetMode<usize>,
+        world: &World,
+    ) -> Result<()> {
+        todo!()
+    }
+
+    fn resize(
+        &mut self,
+        window_width: f32,
+        window_height: f32,
+        images: &TargetMode<Vec<Arc<Image>>>,
+    ) -> Result<()> {
+        todo!()
+    }
+}