ecs work

src/scene/scenetree.h

@@ -82,4 +82,20 @@ void sceneTreeChildRemoveAll(const ecsid_t parent);
  * @param child The ID of the child scene item to check.
  * @return True if the child is in the parent's children, false otherwise.
  */
-bool_t sceneTreeChildInTree(const ecsid_t parent, const ecsid_t child);
+bool_t sceneTreeChildInTree(const ecsid_t parent, const ecsid_t child);
+
+/**
+ * Callback for when an entity is added to the ECS.
+ * This will initialize the scene tree data for the entity.
+ * 
+ * @param id The ID of the entity being added.
+ */
+void sceneTreeEntityAdded(const ecsid_t id);
+
+/**
+ * Callback for when an entity is removed from the ECS.
+ * This will clean up any scene tree data associated with the entity.
+ * 
+ * @param id The ID of the entity being removed.
+ */
+void sceneTreeEntityRemoved(const ecsid_t id);