app: Move render_pass into scene

src/core/scene/mod.rs

@@ -0,0 +1,24 @@
+use std::{error::Error, sync::Arc};
+
+use egui_winit_vulkano::Gui;
+use vulkano::{image::view::ImageView, sync::GpuFuture};
+
+mod context;
+pub use context::SceneContext;
+
+mod manager;
+pub use manager::SceneManager;
+
+pub trait Scene {
+    fn loaded(&self) -> bool;
+    fn load(&mut self, scene_context: &SceneContext);
+    fn update(&mut self, scene_context: &SceneContext);
+    fn render(
+        &mut self,
+        image_view: &Arc<ImageView>,
+        acquire_future: Box<dyn GpuFuture>,
+        scene_context: &SceneContext,
+        gui: &mut Gui,
+    ) -> Result<Box<dyn GpuFuture>, Box<dyn Error>>;
+    fn unload(&mut self);
+}