feat(ecs): add action to despawn entity

1 files changed, 11 insertions, 0 deletions

diff --git a/ecs/src/component.rs b/ecs/src/component.rs
index 0f64695..5da510a 100644
--- a/ecs/src/component.rs
+++ b/ecs/src/component.rs
@@ -5,6 +5,7 @@ use seq_macro::seq;
 
 use crate::event::component::{
     Added as ComponentAddedEvent,
+    Kind as ComponentEventKind,
     Removed as ComponentRemovedEvent,
 };
 use crate::lock::{ReadGuard, WriteGuard};
@@ -40,6 +41,9 @@ pub trait Component: SystemInput + Any + TypeName
     /// The ID of the component `self`. Returns the same value as [`Component::id`].
     fn self_id(&self) -> Uid;
 
+    /// Returns the component UID of a component event for this component.
+    fn get_event_uid(&self, event_kind: ComponentEventKind) -> Uid;
+
     #[doc(hidden)]
     fn as_any_mut(&mut self) -> &mut dyn Any;
 
@@ -115,6 +119,13 @@ where
         Self::id()
     }
 
+    fn get_event_uid(&self, event_kind: ComponentEventKind) -> Uid
+    {
+        match event_kind {
+            ComponentEventKind::Removed => ComponentRemovedEvent::<Self>::id(),
+        }
+    }
+
     fn as_any_mut(&mut self) -> &mut dyn Any
     {
         self