diff -r 66171ce586cc -r 9c259fb4d405 qmlfrontend/gameview.h
--- a/qmlfrontend/gameview.h	Sun Jan 07 09:48:26 2018 +0100
+++ b/qmlfrontend/gameview.h	Wed Jan 10 23:49:47 2018 +0100
@@ -47,6 +47,8 @@
     quint32 m_delta;
     GameViewRenderer* m_renderer;
     bool m_windowChanged;
+    qint32 m_centerX;
+    qint32 m_centerY;
 };
 
 #endif // GAMEVIEW_H