feat: add ObjectRef for scene loading to not rely on runtime id's

lightkeeper/include/components/InteractableButton.h

@@ -6,7 +6,7 @@
 #include <cstddef>
 #include <vector>
 
-#include <destrum/ObjectModel/ObjectId.h>
+#include <destrum/ObjectModel/ObjectRef.h>
 
 class InteractableButton final : public Interactable {
 public:
@@ -19,6 +19,7 @@ public:
 
     nlohmann::json Serialize() const override;
     void Deserialize(const nlohmann::json& data) override;
+    void ResolveReferences(const ObjectMap& objects) override;
     void ImGuiInspector() override;
 
     [[nodiscard]] std::size_t GetColorIndex() const { return m_ColorIndex; }
@@ -29,7 +30,7 @@ public:
     // Every Activatable on a target object is activated when the button is pressed
     void AddTarget(const GameObject& target);
     void RemoveTarget(ObjectId target);
-    [[nodiscard]] const std::vector<ObjectId>& GetTargets() const { return m_Targets; }
+    [[nodiscard]] const std::vector<ObjectRef>& GetTargets() const { return m_Targets; }
 
 private:
     void ApplyColor();
@@ -39,7 +40,7 @@ private:
     std::size_t m_ColorIndex{0};
     int m_PressCount{0};
     bool m_CycleColors{true};
-    std::vector<ObjectId> m_Targets;
+    std::vector<ObjectRef> m_Targets;
 };
 
 #endif // LIGHTKEEPER_INTERACTABLEBUTTON_H