turns out these bindings don't work so well.

Docs/Changelog_sm-ssc.txt

@@ -17,8 +17,6 @@ sm-ssc v1.2 | 201012xx
 --------
 * SM5SVN r28586: Only unload fonts if not used by the next screen. [shakesoda]
 * [ScreenSelectMaster] Fix DoSwitchAnyways to actually work again.
-* [Screen] Added SetNextScreenName(string) and SetPrevScreenName(string)
-  Lua bindings. [freem]
 * [ScreenInstallOverlay] Installs won't jump to SelMusic on Gameplay or System
   Menus (e.g. Edit Mode) anymore on download completion. [freem]
 

src/Screen.cpp

@@ -84,7 +84,6 @@ void Screen::BeginScreen()
 	/* Screens set these when they determine their next screen dynamically. Reset them
 	 * here, so a reused screen doesn't inherit these from the last time it was used. */
 	m_sNextScreen = RString();
-	m_sPrevScreen = RString();
 
 	m_fLockInputSecs = 0;
 
@@ -108,33 +107,28 @@ void Screen::Update( float fDeltaTime )
 	
 	m_fLockInputSecs = max( 0, m_fLockInputSecs-fDeltaTime );
 
-	/*
+	/* We need to ensure two things:
-	 * We need to ensure two things:
 	 * 1. Messages must be sent in the order of delay. If two messages are sent
-	 *    simultaneously, one with a .001 delay and another with a .002 delay, the
+	 *    simultaneously, one with a .001 delay and another with a .002 delay,
-	 *    .001 delay message must be sent first.
+	 *    the .001 delay message must be sent first.
 	 * 2. Messages to be delivered simultaneously must be sent in the order queued.
 	 * 
-	 * Sort by time to ensure #1; use a stable sort to ensure #2.
+	 * Sort by time to ensure #1; use a stable sort to ensure #2. */
-	 */
 	stable_sort(m_QueuedMessages.begin(), m_QueuedMessages.end(), SortMessagesByDelayRemaining);
 
-	/* Update the times of queued ScreenMessages. */
+	// Update the times of queued ScreenMessages.
 	for( unsigned i=0; i<m_QueuedMessages.size(); i++ )
 	{
 		/* Hack:
-		 *
 		 * If we simply subtract time and then send messages, we have a problem.
 		 * Messages are queued to arrive at specific times, and those times line
 		 * up with things like tweens finishing. If we send the message at the
 		 * exact time given, then it'll be on the same cycle that would be rendering
-		 * the last frame of a tween (such as an object going off the screen).  However,
+		 * the last frame of a tween (such as an object going off the screen).
-		 * when we send the message, we're likely to set up a new screen, which
+		 * However, when we send the message, we're likely to set up a new screen,
-		 * causes everything to stop in place; this results in actors occasionally
+		 * which causes everything to stop in place; this results in actors
-		 * not quite finishing their tweens.
+		 * occasionally not quite finishing their tweens.
-		 *
+		 * Let's delay all messages that have a non-zero time an extra frame. */
-		 * Let's delay all messages that have a non-zero time an extra frame. 
-		 */
 		if( m_QueuedMessages[i].fDelayRemaining > 0.0001f )
 		{
 			m_QueuedMessages[i].fDelayRemaining -= fDeltaTime;
@@ -155,7 +149,7 @@ void Screen::Update( float fDeltaTime )
 		if( m_QueuedMessages[i].fDelayRemaining > 0.0f )
 			continue; /* not yet */
 
-		/* Remove the message from the list. */
+		// Remove the message from the list.
 		const ScreenMessage SM = m_QueuedMessages[i].SM;
 		m_QueuedMessages.erase( m_QueuedMessages.begin()+i );
 		i--;
@@ -244,6 +238,7 @@ void Screen::HandleScreenMessage( const ScreenMessage SM )
 
 RString Screen::GetNextScreenName() const
 {
+	LOG->Trace("[Screen::GetNextScreenName]: m_sNextScreen = %s",m_sNextScreen.c_str());
 	if( !m_sNextScreen.empty() )
 		return m_sNextScreen;
 	return NEXT_SCREEN;
@@ -251,6 +246,7 @@ RString Screen::GetNextScreenName() const
 
 RString Screen::GetPrevScreen() const
 {
+	LOG->Trace("[Screen::GetPrevScreen]: m_sPrevScreen = %s",m_sPrevScreen.c_str());
 	if( !m_sPrevScreen.empty() )
 		return m_sPrevScreen;
 	return PREV_SCREEN;
@@ -286,8 +282,6 @@ class LunaScreen: public Luna<Screen>
 public:
 	static int GetNextScreenName( T* p, lua_State *L ) { lua_pushstring(L, p->GetNextScreenName() ); return 1; }
 	static int GetPrevScreenName( T* p, lua_State *L ) { lua_pushstring(L, p->GetPrevScreen() ); return 1; }
-	static int SetNextScreenName( T* p, lua_State *L ) { p->SetNextScreen(SArg(1)); return 0; }
-	static int SetPrevScreenName( T* p, lua_State *L ) { p->SetPrevScreen(SArg(1)); return 0; }
 	static int lockinput( T* p, lua_State *L ) { p->SetLockInputSecs(FArg(1)); return 0; }
 	DEFINE_METHOD( GetScreenType,	GetScreenType() )
 
@@ -303,8 +297,6 @@ public:
 	{
 		ADD_METHOD( GetNextScreenName );
 		ADD_METHOD( GetPrevScreenName );
-		ADD_METHOD( SetNextScreenName );
-		ADD_METHOD( SetPrevScreenName );
 		ADD_METHOD( PostScreenMessage );
 		ADD_METHOD( lockinput );
 		ADD_METHOD( GetScreenType );

src/Screen.h

@@ -97,8 +97,6 @@ protected:
 public:
 	RString GetNextScreenName() const;
 	RString GetPrevScreen() const;
-	void SetNextScreen(RString sNextScreen){ m_sNextScreen = sNextScreen; };
-	void SetPrevScreen(RString sPrevScreen){ m_sPrevScreen = sPrevScreen; };
 
 	// let subclass override if they want
 	virtual void MenuUp(	const InputEventPlus &input ) { }