From 142b97381b3c6fc2e823884f55a05897cc27a9e1 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Fri, 26 Sep 2025 13:41:24 +0200
Subject: refactor(ecs): make ObserveIter return EventMatch struct

---
 ecs/src/system/observer.rs | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

(limited to 'ecs/src/system/observer.rs')

diff --git a/ecs/src/system/observer.rs b/ecs/src/system/observer.rs
index 1496d40..b7d84be 100644
--- a/ecs/src/system/observer.rs
+++ b/ecs/src/system/observer.rs
@@ -94,7 +94,7 @@ impl<ObservedT: Observed> Observe<'_, ObservedT>
 impl<'a, ObservedT: Observed> IntoIterator for &'a Observe<'_, ObservedT>
 {
     type IntoIter = ObserveIter<'a>;
-    type Item = EntityHandle<'a>;
+    type Item = <Self::IntoIter as Iterator>::Item;
 
     fn into_iter(self) -> Self::IntoIter
     {
@@ -110,13 +110,37 @@ pub struct ObserveIter<'observe>
 
 impl<'observe> Iterator for ObserveIter<'observe>
 {
-    type Item = EntityHandle<'observe>;
+    type Item = EventMatch<'observe>;
 
     fn next(&mut self) -> Option<Self::Item>
     {
-        let target = *self.inner.next()?;
+        let match_id = *self.inner.next()?;
 
-        self.world.get_entity(target)
+        Some(EventMatch { world: self.world, id: match_id })
+    }
+}
+
+/// A event match.
+#[derive(Debug)]
+pub struct EventMatch<'world>
+{
+    world: &'world World,
+    id: Uid,
+}
+
+impl<'world> EventMatch<'world>
+{
+    #[must_use]
+    pub fn id(&self) -> Uid
+    {
+        self.id
+    }
+
+    /// Attempts to get the entity with the id of this match.
+    #[must_use]
+    pub fn get_entity(&self) -> Option<EntityHandle<'world>>
+    {
+        self.world.get_entity(self.id)
     }
 }
 
-- 
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