sprites: Bulk-initialize all known sprites

src/sprites.rs

@@ -25,6 +25,12 @@ impl Sprite {
             .register_image_on_handle(image, &image_handle)
             .expect("ImageHandle was registered twice - this should not happen");
     }
+
+    pub async fn load_and_register_all(renderer: &mut resources::Rendering) {
+        for sprite in &[Sprite::Player] {
+            sprite.load_and_register(renderer).await;
+        }
+    }
 }
 
 impl Into<resources::ImageHandle> for Sprite {

src/states/level_loading.rs

@@ -60,9 +60,7 @@ impl gamestate::State for LevelLoadingState {
             .await
             .unwrap();
 
-            sprites::Sprite::Player
-                .load_and_register(&mut rendering)
-                .await;
+            sprites::Sprite::load_and_register_all(&mut rendering).await;
 
             handle.do_transition(gamestate::Transition::replace(states::InGameState::new(
                 level,