diff options
| -rw-r--r-- | engine-ecs/src/lib.rs | 7 | ||||
| -rw-r--r-- | engine-ecs/src/sole.rs | 7 |
2 files changed, 12 insertions, 2 deletions
diff --git a/engine-ecs/src/lib.rs b/engine-ecs/src/lib.rs index da221cb..f9e8143 100644 --- a/engine-ecs/src/lib.rs +++ b/engine-ecs/src/lib.rs @@ -253,6 +253,7 @@ impl World [ sole.into_parts(), EntityName { name: name.into() }.into_parts(), + crate::sole::Is.into_parts(), ], &ComponentAddingFlags { allow_soles: true }, ); @@ -682,7 +683,11 @@ impl World Self::add_entity_components( sole_parts.id, - [sole_parts, EntityName { name: name.into() }.into_parts()], + [ + sole_parts, + EntityName { name: name.into() }.into_parts(), + crate::sole::Is.into_parts(), + ], &mut self.data.component_storage, &EventSubmitter::new(&self.data.new_events), &ComponentAddingFlags { allow_soles: true }, diff --git a/engine-ecs/src/sole.rs b/engine-ecs/src/sole.rs index 9168414..cf5283b 100644 --- a/engine-ecs/src/sole.rs +++ b/engine-ecs/src/sole.rs @@ -7,7 +7,7 @@ use crate::component::{ WithAssociatedId as ComponentWithAssociatedId, }; use crate::system::{Metadata as SystemMetadata, Param as SystemParam}; -use crate::World; +use crate::{Component, World}; /// A component which has a single instance in the [`World`]. pub trait Sole: Any + IntoComponentParts + ComponentWithAssociatedId @@ -20,6 +20,11 @@ pub trait Sole: Any + IntoComponentParts + ComponentWithAssociatedId fn name(&self) -> &'static str; } +/// Marker component for the entities of soles. +#[derive(Debug, Component)] +#[non_exhaustive] +pub struct Is; + /// Holds a reference to a singleton component. #[derive(Debug)] pub struct Single<'world, SoleT: Sole> |