diff --git a/SakuraCore/src/Layer.h b/SakuraCore/src/Layer.h
index f310fa3..8dd616e 100644
--- a/SakuraCore/src/Layer.h
+++ b/SakuraCore/src/Layer.h
@@ -14,6 +14,9 @@ public:
     virtual void OnAttach() {}
     virtual void OnDetach() {}
     virtual void OnImGuiRender() {}
+    virtual void TransitionTo() {}
+    virtual void Suspend() {}
+    virtual void Activate() {}
 
     const std::string &GetName() const { return m_LayerName; }