fix options menu when in arcade input style

stepmania/src/ScreenOptions.cpp

@@ -458,6 +458,10 @@ void ScreenOptions::MenuBack( PlayerNumber pn )
 	m_Wipe.CloseWipingLeft( SM_GoToPrevScreen );
 }
 
+void ScreenOptions::StartGoToNextState()
+{
+	this->SendScreenMessage( SM_TweenOffScreen, 0 );
+}
 
 void ScreenOptions::MenuStart( PlayerNumber pn )
 {

stepmania/src/ScreenOptions.h

@@ -66,8 +66,10 @@ protected:
 	void UpdateEnabledDisabled();
 	virtual void OnChange();
 
-	void MenuBack( PlayerNumber pn );
+	virtual void MenuBack( PlayerNumber pn );
-	void MenuStart( PlayerNumber pn );
+	virtual void MenuStart( PlayerNumber pn );
+
+	void StartGoToNextState();
 
 	virtual void GoToNextState() = 0;
 	virtual void GoToPrevState() = 0;

stepmania/src/ScreenOptionsMenu.cpp

@@ -72,6 +72,12 @@ ScreenOptionsMenu::ScreenOptionsMenu() :
 	SOUNDMAN->PlayMusic( THEME->GetPathTo("Sounds","options menu music") );
 }
 
+/* We depend on the SM options navigation for this screen, not arcade. */
+void ScreenOptionsMenu::MenuStart( PlayerNumber pn )
+{
+	StartGoToNextState();
+}
+
 void ScreenOptionsMenu::ImportOptions()
 {
 }

stepmania/src/ScreenOptionsMenu.h

@@ -23,6 +23,9 @@ class ScreenOptionsMenu : public ScreenOptions
 public:
 	ScreenOptionsMenu();
 
+protected:
+	void MenuStart( PlayerNumber pn );
+
 private:
 	void ImportOptions();
 	void ExportOptions();