Push break job work [not work]

src/core/scene.rs

@@ -0,0 +1,29 @@
+use vulkano_util::renderer::VulkanoWindowRenderer;
+
+use super::{input::InputState, render::vulkan_context::VulkanContext, timer::Timer};
+
+pub trait Scene {
+    fn load(&mut self, app: &mut App);
+    fn update(&mut self, app: &mut App);
+    fn render(&self);
+    fn unload(&mut self);
+}
+
+pub struct SceneManager {
+    current_scene: Option<Box<dyn Scene>>,
+}
+
+impl SceneManager {
+    pub fn new() -> Self {
+        Self {
+            current_scene: None,
+        }
+    }
+
+    pub fn load_scene(&mut self, scene: Box<dyn Scene>) {
+        if let Some(current_scene) = self.current_scene.as_mut() {
+            current_scene.unload();
+        }
+        self.current_scene = Some(scene);
+    }
+}