diff options
Diffstat (limited to 'ecs')
-rw-r--r-- | ecs/src/query.rs | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/ecs/src/query.rs b/ecs/src/query.rs index 253398d..f3318bd 100644 --- a/ecs/src/query.rs +++ b/ecs/src/query.rs @@ -8,7 +8,11 @@ use crate::component::storage::{ EntityIter, Storage as ComponentStorage, }; -use crate::component::{Component, Sequence as ComponentSequence}; +use crate::component::{ + Component, + Metadata as ComponentMetadata, + Sequence as ComponentSequence, +}; use crate::lock::{ReadGuard, WriteGuard}; use crate::query::options::Options; use crate::system::{ @@ -78,6 +82,38 @@ where } } + /// Iterates over the entities matching this query and has the provided extra + /// component. + #[must_use] + pub fn iter_with_extra_comps( + &'world self, + extra_components: impl IntoIterator<Item = ComponentMetadata>, + ) -> ComponentIter<'world, Comps, QueryEntityIter<'world>> + { + #[cfg(feature = "debug")] + tracing::debug!( + "Searching for {} + extra components", + std::any::type_name::<Comps>() + ); + + #[allow(clippy::map_flatten)] + ComponentIter { + world: self.world, + entities: self + .component_storage + .find_entities( + Comps::metadata() + .into_iter() + .chain(extra_components) + .collect::<Vec<_>>(), + ) + .map(Archetype::entities as ComponentIterMapFn) + .flatten() + .filter(|entity| OptionsT::entity_filter(entity.components())), + comps_pd: PhantomData, + } + } + /// Returns the UID of the entity at the given query iteration index. #[must_use] pub fn get_entity_uid(&self, entity_index: usize) -> Option<Uid> |