feat: add Activateable in Lightkeeper

destrum/include/destrum/Scene/Scene.h

@@ -64,6 +64,7 @@ public:
     [[nodiscard]] const std::vector<std::shared_ptr<GameObject>>& GetObjects() const {
         return m_objects;
     }
+    [[nodiscard]] GameObject* FindGameObject(ObjectId id) const;
 
     void SetRegisterBindings(std::function<void()> registerBindings) {
         m_registerBindings = std::move(registerBindings);

destrum/src/Scene/Scene.cpp

@@ -205,6 +205,20 @@ CameraComponent* Scene::GetCurrentCamera() const {
     return cameras.empty() ? nullptr : cameras.front();
 }
 
+GameObject* Scene::FindGameObject(ObjectId id) const {
+    if (id == InvalidObjectId) {
+        return nullptr;
+    }
+    for (const auto* objects : {&m_objects, &m_pendingAdditions}) {
+        for (const auto& object : *objects) {
+            if (object != nullptr && !object->IsBeingDestroyed() && object->GetId() == id) {
+                return object.get();
+            }
+        }
+    }
+    return nullptr;
+}
+
 std::vector<CameraComponent*> Scene::GetCameras() const {
     std::vector<CameraComponent*> cameras;
     for (const auto& object : m_objects) {