diff options
Diffstat (limited to 'ecs/src/component/storage.rs')
-rw-r--r-- | ecs/src/component/storage.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/ecs/src/component/storage.rs b/ecs/src/component/storage.rs index 76e1a7e..05ede9b 100644 --- a/ecs/src/component/storage.rs +++ b/ecs/src/component/storage.rs @@ -174,6 +174,36 @@ impl Storage Some(()) } + pub fn remove_components_from_entity( + &mut self, + entity_uid: EntityUid, + component_ids: impl IntoIterator<Item = ComponentId>, + ) -> Option<()> + { + let archetype_id = self.entity_archetype_lookup.get(&entity_uid)?; + + let archetype_index = + self.find_archetype_index_with_entity(*archetype_id, entity_uid)?; + + let archetype = self.archetypes.get_mut(archetype_index)?; + + let entity = archetype.take_entity(entity_uid)?; + + let component_ids_set = component_ids.into_iter().collect::<HashSet<_>>(); + + self.push_entity( + entity_uid, + entity + .components + .into_iter() + .map(|component| component.component.into_inner()) + .filter(|component| !component_ids_set.contains(&component.id())) + .collect(), + ); + + Some(()) + } + fn populate_matching_archetype_lookup_entries( &mut self, comp_ids_set: &HashSet<ComponentId>, |