feat(engine-ecs): rename system::SystemComponent to Function and make it public

2 files changed, 9 insertions, 7 deletions

diff --git a/engine-ecs/src/lib.rs b/engine-ecs/src/lib.rs
index 188ca7a..da221cb 100644
--- a/engine-ecs/src/lib.rs
+++ b/engine-ecs/src/lib.rs
@@ -60,10 +60,10 @@ use crate::sole::{Single, Sole};
 use crate::system::observer::Observer;
 use crate::system::{
     Callbacks,
+    Function as SystemFunction,
     Metadata as SystemMetadata,
     Param as SystemParam,
     System,
-    SystemComponent,
 };
 use crate::uid::Uid;
 
@@ -272,7 +272,7 @@ impl World
 
         self.create_ent(
             ent_id,
-            [SystemComponent { system }.into_parts()].into_iter().chain(
+            [SystemFunction { system }.into_parts()].into_iter().chain(
                 ObserverT::observed_events()
                     .into_iter()
                     .map(IntoComponentParts::into_parts),
@@ -291,7 +291,7 @@ impl World
     {
         let (type_erased_system, mut system_callbacks) = system.finish();
 
-        let system_ent_id = self.spawn((SystemComponent { system: type_erased_system },));
+        let system_ent_id = self.spawn((SystemFunction { system: type_erased_system },));
 
         system_callbacks.on_created(self, SystemMetadata { ent_id: system_ent_id });
 
@@ -491,7 +491,7 @@ impl World
             .into_iter()
             .filter_map(|phase_has_system| phase_has_system.get_target_ent())
         {
-            let Some(system) = system_entity.get::<SystemComponent>() else {
+            let Some(system) = system_entity.get::<SystemFunction>() else {
                 cold_path();
                 continue;
             };
@@ -895,10 +895,10 @@ impl World
     {
         assert!(event_id.is_pair());
 
-        let query = Query::<(&SystemComponent,)>::from_flexible_query(
+        let query = Query::<(&SystemFunction,)>::from_flexible_query(
             self.flexible_query(
                 QueryTerms::<QUERY_MAX_TERM_CNT>::builder()
-                    .present([SystemComponent::id(), event_id])
+                    .present([SystemFunction::id(), event_id])
                     .build(),
             ),
         );
diff --git a/engine-ecs/src/system.rs b/engine-ecs/src/system.rs
index e0eac57..b79f20c 100644
--- a/engine-ecs/src/system.rs
+++ b/engine-ecs/src/system.rs
@@ -163,8 +163,10 @@ impl Callbacks for NoCallbacks
     fn on_created(&mut self, _world: &mut World, _metadata: Metadata) {}
 }
 
+/// System & observer function component. Intentionally not runnable outside of this
+/// crate.
 #[derive(Debug, Component)]
-pub(crate) struct SystemComponent
+pub struct Function
 {
     pub(crate) system: TypeErased,
 }