Merge pull request #26 from mgi388/refs-25

Tidy cache when StandardMaterial assets are removed

src/plugin.rs

@@ -86,6 +86,7 @@ impl Plugin for SpritesheetAnimationPlugin {
                         sprite3d::setup_rendering,
                         sprite3d::sync_when_sprites_change,
                         sprite3d::sync_when_atlases_change,
+                        sprite3d::remove_dropped_standard_materials,
                     )
                         .in_set(Sprite3dSystemSet)
                         .after(AnimationSystemSet),

src/systems/sprite3d.rs

@@ -383,3 +383,14 @@ fn get_or_create_mesh(
         mesh_handle
     })
 }
+
+pub(crate) fn remove_dropped_standard_materials(
+    mut cache: ResMut<Cache>,
+    mut standard_material_events: EventReader<AssetEvent<StandardMaterial>>,
+) {
+    for event in standard_material_events.read() {
+        if let AssetEvent::Removed { id } = event {
+            cache.materials.retain(|_, handle| handle.id() != *id);
+        }
+    }
+}