start moving slimed project to app+core+support context/state model

examples/slimed/src/entities/mod.rs

@@ -385,8 +385,8 @@ pub struct Pickuper;
 
 pub fn init_everything(context: &mut Game, map_file: &Path, min_spawn_time: f32, max_spawn_time: f32, max_slimes: usize) {
     init_entities(&mut context.core.entities);
-    init_component_system(&mut context.component_systems);
-    init_events(&mut context.event_listeners);
+    init_component_system(&mut context.support.component_systems);
+    init_events(&mut context.support.event_listeners);
     context.core.event_publisher.clear();
 
     context.core.tilemap = TileMap::load_from(map_file).unwrap();

examples/slimed/src/main.rs

@@ -54,12 +54,16 @@ pub struct Core {
     pub sprite_render_list: Vec<(EntityId, Vector2, BlitMethod)>,
 }
 
-pub struct Game {
-    pub core: Core,
+pub struct Support {
     pub component_systems: ComponentSystems<Core, Core>,
     pub event_listeners: EventListeners<Event, Core>,
 }
 
+pub struct Game {
+    pub core: Core,
+    pub support: Support,
+}
+
 impl Game {
     pub fn new(mut system: System) -> Result<Self> {
         let palette = load_palette(Path::new("./assets/db16.pal"))?;
@@ -136,14 +140,16 @@ impl Game {
                 sparkles_animation_def,
                 sprite_render_list: Vec::with_capacity(1024),
             },
-            component_systems,
-            event_listeners,
+            support: Support {
+                component_systems,
+                event_listeners,
+            },
         })
     }
 
     pub fn do_events(&mut self) {
-        self.event_listeners.take_queue_from(&mut self.core.event_publisher);
-        self.event_listeners.dispatch_queue(&mut self.core);
+        self.support.event_listeners.take_queue_from(&mut self.core.event_publisher);
+        self.support.event_listeners.dispatch_queue(&mut self.core);
     }
 
     pub fn update_frame_delta(&mut self, last_ticks: u64) -> u64 {

examples/slimed/src/states.rs

@@ -46,14 +46,14 @@ impl AppState<Game> for MainMenuState {
         }
 
         context.do_events();
-        context.component_systems.update(&mut context.core);
+        context.support.component_systems.update(&mut context.core);
 
         None
     }
 
     fn render(&mut self, state: State, context: &mut Game) {
         context.core.tilemap.draw(&mut context.core.system.video, &context.core.tiles, 0, 0);
-        context.component_systems.render(&mut context.core);
+        context.support.component_systems.render(&mut context.core);
 
         let x = 32;
         let y = 160;
@@ -155,7 +155,7 @@ impl AppState<Game> for GamePlayState {
         }
 
         context.do_events();
-        context.component_systems.update(&mut context.core);
+        context.support.component_systems.update(&mut context.core);
 
         None
     }
@@ -164,7 +164,7 @@ impl AppState<Game> for GamePlayState {
         if let Some((_, camera)) = context.core.entities.components::<Camera>().single() {
             context.core.tilemap.draw(&mut context.core.system.video, &context.core.tiles, camera.x, camera.y);
         }
-        context.component_systems.render(&mut context.core);
+        context.support.component_systems.render(&mut context.core);
 
         if self.in_menu {
             let x = 32;