Index: nsts.h
===================================================================
--- Consts.h	(revision 76d19a8d3b210e2ee4ffc4c47c9549323cde153d)
+++ 	(revision )
@@ -1,1 +1,0 @@
-#define GAME_VERSION "0.01.000"
Index: consts.hpp
===================================================================
--- consts.hpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
+++ consts.hpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
@@ -0,0 +1,12 @@
+#ifndef _RTWO_CONSTS_H
+#define _RTWO_CONSTS_H
+
+#define GAME_VERSION "0.01.000"
+
+#define RTWO_SUCCESS true
+#define RTWO_ERROR false
+
+// TODO: Would prefer to use enums, but couldn't find a great way to use them in bitmasks
+constexpr unsigned char GUI_FLAGS_WINDOW_FULLSCREEN { 1 << 0 };
+
+#endif // _RTWO_CONSTS_H
Index: crash-logger.cpp
===================================================================
--- crash-logger.cpp	(revision 76d19a8d3b210e2ee4ffc4c47c9549323cde153d)
+++ crash-logger.cpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
@@ -9,5 +9,5 @@
 
 #include "Compiler.h"
-#include "Consts.h"
+#include "consts.hpp"
 
 // TODO: Double-check which includes are necessary
Index: game-gui-glfw.cpp
===================================================================
--- game-gui-glfw.cpp	(revision 76d19a8d3b210e2ee4ffc4c47c9549323cde153d)
+++ game-gui-glfw.cpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
@@ -1,3 +1,5 @@
 #include "game-gui-glfw.hpp"
+
+#include "consts.hpp"
 
 string GameGui_GLFW::s_errorMessage;
Index: game-gui-sdl.cpp
===================================================================
--- game-gui-sdl.cpp	(revision 76d19a8d3b210e2ee4ffc4c47c9549323cde153d)
+++ game-gui-sdl.cpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
@@ -1,3 +1,5 @@
 #include "game-gui-sdl.hpp"
+
+#include "consts.hpp"
 
 string GameGui_SDL::s_errorMessage;
Index: game-gui.hpp
===================================================================
--- game-gui.hpp	(revision 76d19a8d3b210e2ee4ffc4c47c9549323cde153d)
+++ game-gui.hpp	(revision 9546928bda27527ff2aad641e13319e7b7f05095)
@@ -1,4 +1,7 @@
 #ifndef _GAME_GUI_H
 #define _GAME_GUI_H
+
+#include <string>
+#include <vector>
 
 #ifdef GAMEGUI_INCLUDE_VULKAN
@@ -6,11 +9,7 @@
 #endif
 
-#include <string>
-#include <vector>
+#include "consts.hpp"
 
 using namespace std;
-
-#define RTWO_SUCCESS true
-#define RTWO_ERROR false
 
 class GameGui {