refactor(engine): use observer trait renamed observer reg fn

1 files changed, 4 insertions, 5 deletions

diff --git a/engine/src/lib.rs b/engine/src/lib.rs
index 660f5d5..a18cebb 100644
--- a/engine/src/lib.rs
+++ b/engine/src/lib.rs
@@ -3,10 +3,10 @@
 
 use ecs::component::Sequence as ComponentSequence;
 use ecs::extension::Extension;
-use ecs::pair::Pair;
 use ecs::phase::PRE_UPDATE as PRE_UPDATE_PHASE;
 use ecs::sole::Sole;
 use ecs::system::initializable::Initializable;
+use ecs::system::observer::Observer;
 use ecs::system::{Into, System};
 use ecs::uid::Uid;
 use ecs::{SoleAlreadyExistsError, World};
@@ -94,13 +94,12 @@ impl Engine
         self.world.register_system(phase_euid, system);
     }
 
-    pub fn register_observer_system<'this, SystemImpl>(
+    pub fn register_observer<'this, SystemImpl>(
         &'this mut self,
-        system: impl System<'this, SystemImpl>,
-        event: Pair<Uid, Uid>,
+        observer: impl Observer<'this, SystemImpl>,
     )
     {
-        self.world.register_observer_system(system, event);
+        self.world.register_observer(observer);
     }
 
     /// Adds a globally shared singleton value.