void BackToFront();
void FadeToFront();
void ClearWindow();
+void DrawTextF(int, int, int, char *, ...);
+void DrawTextFCentered(int, int, char *, ...);
void DrawText(int, int, char *, int, int);
void DrawTextExt(Drawable, GC, int, int, char *, int, int);
void DrawAllPlayers(void);
void DrawLevel(void);
void DrawMiniLevel(int, int);
void DrawMicroLevel(int, int);
-BOOL Request(char *, unsigned int);
+boolean Request(char *, unsigned int);
unsigned int OpenDoor(unsigned int);
unsigned int CloseDoor(unsigned int);
unsigned int GetDoorState(void);