int DrawGLScene(StereoSide side);
void playdialoguescenesound();
int findClosestPlayer();
-void Loadlevel(int which);
-void Loadlevel(const std::string& name, bool tutorial = false);
+bool LoadLevel(int which);
+bool LoadLevel(const std::string& name, bool tutorial = false);
void Tick();
void TickOnce();
void TickOnceAfter();