1 files changed, 6 insertions, 0 deletions
diff --git a/src/states/simulation_state.h b/src/states/simulation_state.h
index 4bb1c1b..68788e8 100644
--- a/src/states/simulation_state.h
+++ b/src/states/simulation_state.h
@@ -3,6 +3,8 @@
 #include "core/state.h"
 #include "core/event.h"
 #include "core/log.h"
+#include "engine/engine.h"
+#include <vector>
 
 namespace Donut
 {
@@ -18,5 +20,9 @@ namespace Donut
         void on_render()                override;
         void on_im_ui_render()            override;
         void on_event(Event& event)     override;
+    
+    private:
+        Engine m_engine;
+        bool   m_initialized = false;
     };
 };