feat(ecs): add creating static entities

1 files changed, 20 insertions, 5 deletions

diff --git a/ecs/src/lib.rs b/ecs/src/lib.rs
index 3c517dd..6725d81 100644
--- a/ecs/src/lib.rs
+++ b/ecs/src/lib.rs
@@ -11,7 +11,7 @@ use std::sync::Arc;
 use crate::actions::Action;
 use crate::component::storage::Storage as ComponentStorage;
 use crate::component::{Component, Id as ComponentId, Sequence as ComponentSequence};
-use crate::entity::Uid as EntityUid;
+use crate::entity::{Uid as EntityUid, CREATE_STATIC_ENTITIES};
 use crate::event::component::{
     create_added_id as create_component_added_event_id,
     create_removed_id as create_component_removed_event_id,
@@ -42,6 +42,9 @@ pub mod system;
 pub mod tuple;
 pub mod type_name;
 
+#[doc(hidden)]
+pub mod private;
+
 mod archetype;
 mod util;
 
@@ -75,7 +78,6 @@ impl World
     ///
     /// # Panics
     /// Will panic if mutable internal lock cannot be acquired.
-    #[cfg_attr(feature = "debug", tracing::instrument(skip_all))]
     pub fn create_entity<Comps>(&mut self, components: Comps) -> EntityUid
     where
         Comps: ComponentSequence + TupleReduce<TypeTransformComponentsToAddedEvents>,
@@ -83,6 +85,17 @@ impl World
     {
         let entity_uid = EntityUid::new_unique();
 
+        self.create_entity_with_uid(components, entity_uid);
+
+        entity_uid
+    }
+
+    #[cfg_attr(feature = "debug", tracing::instrument(skip_all))]
+    pub fn create_entity_with_uid<Comps>(&self, components: Comps, entity_uid: EntityUid)
+    where
+        Comps: ComponentSequence + TupleReduce<TypeTransformComponentsToAddedEvents>,
+        Comps::Out: EventSequence,
+    {
         #[allow(unused_variables)]
         if let Err(err) = self
             .data
@@ -94,14 +107,12 @@ impl World
             #[cfg(feature = "debug")]
             tracing::error!("Failed to create entity: {err}");
 
-            return entity_uid;
+            return;
         };
 
         for component_added_event_id in <Comps::Out as EventSequence>::ids().iter() {
             self.emit_event_by_id(*component_added_event_id);
         }
-
-        entity_uid
     }
 
     /// Adds a globally shared singleton value.
@@ -279,6 +290,10 @@ impl World
     /// Will panic if a internal lock cannot be acquired.
     pub fn event_loop<EventSeq: EventSequence>(&self)
     {
+        for create_static_entity in CREATE_STATIC_ENTITIES {
+            create_static_entity(self);
+        }
+
         self.emit(StartEvent);
 
         let event_seq = EventSeq::ids();