feat(app): added the prefab interface to the app struct

crates/comet_app/src/app.rs

@@ -1,22 +1,23 @@
+use comet_colors::{Color as ColorTrait, LinearRgba};
+use comet_ecs::{
+    Camera2D, Color, Component, Entity, Render2D, Scene, Text, Transform2D, Transform3D,
+};
+use comet_input::keyboard::Key;
+use comet_log::*;
+use comet_renderer::renderer::Renderer;
 use std::any::{type_name, Any, TypeId};
 use std::sync::Arc;
-use comet_ecs::{Camera2D, Color, Component, Entity, Render2D, Scene, Text, Transform2D, Transform3D};
+use winit::dpi::LogicalSize;
 use winit::{
     event::*,
     event_loop::EventLoop,
     window::{Icon, Window},
 };
-use comet_colors::{Color as ColorTrait, LinearRgba};
-use comet_log::*;
-use winit::dpi::LogicalSize;
 use winit_input_helper::WinitInputHelper as InputManager;
-use comet_input::keyboard::Key;
-use comet_renderer::renderer::Renderer;
-use comet_structs::ComponentSet;
 
 pub enum ApplicationType {
     App2D,
-	App3D
+    App3D,
 }
 
 pub struct App {
@@ -30,7 +31,7 @@ pub struct App {
     game_state: Option<Box<dyn Any>>,
     scene: Scene,
     fullscreen: bool,
-	should_quit: bool
+    should_quit: bool,
 }
 
 impl App {
@@ -46,7 +47,7 @@ impl App {
             game_state: None,
             scene: Scene::new(),
             fullscreen: false,
-			should_quit: false
+            should_quit: false,
         }
     }
 
@@ -83,7 +84,7 @@ impl App {
                 self.scene.register_component::<Render2D>();
                 self.scene.register_component::<Camera2D>();
                 self.scene.register_component::<Text>();
-			},
+            }
             ApplicationType::App3D => {
                 info!("Creating 3D app!");
                 self.scene.register_component::<Transform3D>()
@@ -189,6 +190,18 @@ impl App {
         self.scene.has::<C>(entity_id)
     }
 
+    pub fn register_prefab(&mut self, name: &str, factory: comet_ecs::PrefabFactory) {
+        self.scene.register_prefab(name, factory)
+    }
+
+    pub fn spawn_prefab(&mut self, name: &str) -> Option<usize> {
+        self.scene.spawn_prefab(name)
+    }
+
+    pub fn has_prefab(&self, name: &str) -> bool {
+        self.scene.has_prefab(name)
+    }
+
     pub fn quit(&mut self) {
         self.should_quit = true;
     }
@@ -206,9 +219,13 @@ impl App {
         self.update_timer = 1.0 / update_rate as f32;
     }
 
-	fn create_window(app_title: String, app_icon: &Option<Icon>, window_size: &Option<LogicalSize<u32>>, event_loop: &EventLoop<()>) -> Window {
-		let winit_window = winit::window::WindowBuilder::new()
-			.with_title(app_title);
+    fn create_window(
+        app_title: String,
+        app_icon: &Option<Icon>,
+        window_size: &Option<LogicalSize<u32>>,
+        event_loop: &EventLoop<()>,
+    ) -> Window {
+        let winit_window = winit::window::WindowBuilder::new().with_title(app_title);
 
         let winit_window = if let Some(icon) = app_icon.clone() {
             winit_window.with_window_icon(Some(icon))
@@ -225,12 +242,21 @@ impl App {
         winit_window.build(event_loop).unwrap()
     }
 
-	pub fn run<R: Renderer>(mut self, setup: fn(&mut App, &mut R), update: fn(&mut App, &mut R, f32)) {
+    pub fn run<R: Renderer>(
+        mut self,
+        setup: fn(&mut App, &mut R),
+        update: fn(&mut App, &mut R, f32),
+    ) {
         info!("Starting up {}!", self.title);
 
         pollster::block_on(async {
             let event_loop = EventLoop::new().unwrap();
-			let window = Arc::new(Self::create_window(self.title.clone(), &self.icon, &self.size ,&event_loop));
+            let window = Arc::new(Self::create_window(
+                self.title.clone(),
+                &self.icon,
+                &self.size,
+                &event_loop,
+            ));
             let mut renderer = R::new(window.clone(), self.clear_color.clone());
             info!("Renderer created! ({})", type_name::<R>());
 
@@ -240,7 +266,8 @@ impl App {
             let mut time_stack = 0.0;
 
             info!("Starting event loop!");
-			event_loop.run(|event, elwt| {
+            event_loop
+                .run(|event, elwt| {
                     self.delta_time = renderer.update();
 
                     if self.should_quit {
@@ -259,8 +286,10 @@ impl App {
                     }
 
                     match event {
-					Event::WindowEvent { ref event, window_id} => {
-						match event {
+                        Event::WindowEvent {
+                            ref event,
+                            window_id,
+                        } => match event {
                             WindowEvent::CloseRequested {} => elwt.exit(),
                             WindowEvent::Resized(physical_size) => {
                                 renderer.resize(*physical_size);
@@ -268,16 +297,16 @@ impl App {
                             WindowEvent::RedrawRequested => {
                                 window.request_redraw();
                                 match renderer.render() {
-									Ok(_) => {},
-									Err(e) => error!("Error rendering: {}", e)
+                                    Ok(_) => {}
+                                    Err(e) => error!("Error rendering: {}", e),
                                 }
                             }
                             _ => {}
-						}
-					}
+                        },
                         _ => {}
                     }
-			}).unwrap()
+                })
+                .unwrap()
         });
 
         info!("Shutting down {}!", self.title);