Changed NoteSkinManager to use new error reporting and avoid crashing. Fixed DoChangeTheme to switch to the InitialScreen if the screen doesn't exist in the theme being changed to. Fixed error reporting in MeterDisplay.

src/DifficultyList.cpp

@@ -37,7 +37,11 @@ void StepsDisplayList::LoadFromNode( const XNode* pNode )
 {
 	ActorFrame::LoadFromNode( pNode );
 
-	ASSERT_M( !m_sName.empty(), "StepsDisplayList must have a Name" );
+	if(m_sName.empty())
+	{
+		LuaHelpers::ReportScriptError("StepsDisplayList must have a Name");
+		return;
+	}
 
 	ITEMS_SPACING_Y.Load( m_sName, "ItemsSpacingY" );
 	NUM_SHOWN_ITEMS.Load( m_sName, "NumShownItems" );

src/GameLoop.cpp

@@ -145,6 +145,13 @@ namespace
 
 		StepMania::ResetGame();
 		SCREENMAN->ThemeChanged();
+		// Not all themes use the same screen names!  Check whether the new
+		// screen is valid in the new theme before setting it.  Use the
+		// InitialScreen metric if it's not.
+		if(!SCREENMAN->IsScreenNameValid(g_sNewScreen))
+		{
+			g_sNewScreen= THEME->GetMetric("Common", "InitialScreen");
+		}
 		SCREENMAN->SetNewScreen( g_sNewScreen );
 
 		g_sNewTheme = RString();

src/GameState.cpp

@@ -223,7 +223,7 @@ void GameState::ApplyGameCommand( const RString &sCommand, PlayerNumber pn )
 	RString sWhy;
 	if( !m.IsPlayable(&sWhy) )
 	{
-		LuaHelpers::ReportScriptErrorFmt("Can't apply mode \"%s\": %s", sCommand.c_str(), sWhy.c_str());
+		LuaHelpers::ReportScriptErrorFmt("Can't apply GameCommand \"%s\": %s", sCommand.c_str(), sWhy.c_str());
 		return;
 	}
 

src/MeterDisplay.cpp

@@ -35,11 +35,9 @@ void MeterDisplay::LoadFromNode( const XNode* pNode )
 	if( pStream == NULL )
 	{
 		LuaHelpers::ReportScriptErrorFmt("%s: MeterDisplay: missing the \"Stream\" attribute", ActorUtil::GetWhere(pNode).c_str());
+		return;
 	}
-	else
-	{
-		m_sprStream.LoadActorFromNode( pStream, this );
-	}
+	m_sprStream.LoadActorFromNode( pStream, this );
 	m_sprStream->SetName( "Stream" );
 	//LOAD_ALL_COMMANDS( m_sprStream );
 	this->AddChild( m_sprStream );

src/NoteSkinManager.cpp

@@ -112,7 +112,11 @@ void NoteSkinManager::LoadNoteSkinDataRecursive( const RString &sNoteSkinName_,
 	while(1)
 	{
 		++iDepth;
-		ASSERT_M( iDepth < 20, "Circular NoteSkin fallback references detected." );
+		if(iDepth >= 20)
+		{
+			LuaHelpers::ReportScriptError("Circular NoteSkin fallback references detected.", "NOTESKIN_ERROR");
+			return;
+		}
 
 		RString sDir = SpecialFiles::NOTESKINS_DIR + m_pCurGame->m_szName + "/" + sNoteSkinName + "/";
 		if( !FILEMAN->IsADirectory(sDir) )
@@ -120,8 +124,9 @@ void NoteSkinManager::LoadNoteSkinDataRecursive( const RString &sNoteSkinName_,
 			sDir = GLOBAL_BASE_DIR + sNoteSkinName + "/";
 			if( !FILEMAN->IsADirectory(sDir) )
 			{
-				LOG->Trace( "NoteSkin \"%s\" references skin \"%s\" that is not present",
-					data_out.sName.c_str(), sNoteSkinName.c_str() );
+				LuaHelpers::ReportScriptError("NoteSkin \"" + data_out.sName +
+					"\" references skin \"" + sNoteSkinName + "\" that is not present",
+					"NOTESKIN_ERROR");
 				return;
 			}
 		}
@@ -234,7 +239,11 @@ void NoteSkinManager::GetAllNoteSkinNamesForGame( const Game *pGame, vector<RStr
 
 RString NoteSkinManager::GetMetric( const RString &sButtonName, const RString &sValue )
 {
-	ASSERT( !m_sCurrentNoteSkin.empty() );
+	if(m_sCurrentNoteSkin.empty())
+	{
+		LuaHelpers::ReportScriptError("NOTESKIN:GetMetric: No noteskin currently set.", "NOTESKIN_ERROR");
+		return "";
+	}
 	RString sNoteSkinName = m_sCurrentNoteSkin;
 	sNoteSkinName.MakeLower();
 	map<RString,NoteSkinData>::const_iterator it = g_mapNameToData.find(sNoteSkinName);
@@ -245,8 +254,12 @@ RString NoteSkinManager::GetMetric( const RString &sButtonName, const RString &s
 	if( data.metrics.GetValue( sButtonName, sValue, sReturn ) )
 		return sReturn;
 	if( !data.metrics.GetValue( "NoteDisplay", sValue, sReturn ) )
-		RageException::Throw( "Could not read metric \"%s::%s\" or \"NoteDisplay::%s\" in \"%s\".",
-				      sButtonName.c_str(), sValue.c_str(), sValue.c_str(), sNoteSkinName.c_str() );
+	{
+		LuaHelpers::ReportScriptError("Could not read metric \"" + sButtonName +
+			"::" + sValue + "\" or \"NoteDisplay::" + sValue + "\" in \"" +
+			sNoteSkinName + "\".", "NOTESKIN_ERROR");
+		return "";
+	}
 	return sReturn;
 }
 
@@ -320,15 +333,18 @@ RString NoteSkinManager::GetPath( const RString &sButtonName, const RString &sEl
 			sButtonName.c_str(), sElement.c_str(), 
 			sPaths.c_str() );
 
-		if( Dialog::AbortRetryIgnore(message) == Dialog::retry )
+		switch(LuaHelpers::ReportScriptError(message, "NOTESKIN_ERROR", true))
 		{
-			FOREACH_CONST( RString, data.vsDirSearchOrder, dir )
-				FILEMAN->FlushDirCache( *dir );
-			g_PathCache.clear();
-			return GetPath( sButtonName, sElement );
+			case Dialog::retry:
+				FOREACH_CONST(RString, data.vsDirSearchOrder, dir)
+					FILEMAN->FlushDirCache(*dir);
+				g_PathCache.clear();
+				return GetPath(sButtonName, sElement);
+			case Dialog::abort:
+				RageException::Throw("%s", message.c_str());
+			case Dialog::ignore:
+				return "";
 		}
-		
-		RageException::Throw( "%s", message.c_str() ); 
 	}
 
 	int iLevel = 0;
@@ -355,15 +371,18 @@ RString NoteSkinManager::GetPath( const RString &sButtonName, const RString &sEl
 					"Verify that this redirect is correct.",
 					sPath.c_str(), sNewFileName.c_str());
 
-			if( Dialog::AbortRetryIgnore(message) == Dialog::retry )
+			switch(LuaHelpers::ReportScriptError(message, "NOTESKIN_ERROR", true))
 			{
-				FOREACH_CONST( RString, data.vsDirSearchOrder, dir )
-					FILEMAN->FlushDirCache( *dir );
-				g_PathCache.clear();
-				return GetPath( sButtonName, sElement );
+				case Dialog::retry:
+					FOREACH_CONST(RString, data.vsDirSearchOrder, dir)
+						FILEMAN->FlushDirCache(*dir);
+					g_PathCache.clear();
+					return GetPath(sButtonName, sElement);
+				case Dialog::abort:
+					RageException::Throw("%s", message.c_str());
+				case Dialog::ignore:
+					return "";
 			}
-
-			RageException::Throw( "%s", message.c_str() ); 
 		}
 		
 		sPath = sRealPath;
@@ -376,7 +395,11 @@ RString NoteSkinManager::GetPath( const RString &sButtonName, const RString &sEl
 bool NoteSkinManager::PushActorTemplate( Lua *L, const RString &sButton, const RString &sElement, bool bSpriteOnly )
 {
 	map<RString,NoteSkinData>::const_iterator iter = g_mapNameToData.find( m_sCurrentNoteSkin );
-	ASSERT( iter != g_mapNameToData.end() );
+	if(iter == g_mapNameToData.end())
+	{
+		LuaHelpers::ReportScriptError("No current noteskin set!", "NOTESKIN_ERROR");
+		return false;
+	}
 	const NoteSkinData &data = iter->second;
 
 	LuaThreadVariable varPlayer( "Player", LuaReference::Create(m_PlayerNumber) );
@@ -385,7 +408,11 @@ bool NoteSkinManager::PushActorTemplate( Lua *L, const RString &sButton, const R
 	LuaThreadVariable varElement( "Element", sElement );
 	LuaThreadVariable varSpriteOnly( "SpriteOnly", LuaReference::Create(bSpriteOnly) );
 
-	ASSERT( !data.m_Loader.IsNil() );
+	if(data.m_Loader.IsNil())
+	{
+		LuaHelpers::ReportScriptError("No loader for noteskin!", "NOTESKIN_ERROR");
+		return false;
+	}
 	data.m_Loader.PushSelf( L );
 	lua_remove( L, -2 );
 	lua_getfield( L, -1, "Load" );
@@ -437,7 +464,7 @@ RString NoteSkinManager::GetPathFromDirAndFile( const RString &sDir, const RStri
 	if( matches.size() > 1 )
 	{
 		RString sError = "Multiple files match '"+sDir+sFileName+"'.  Please remove all but one of these files.";
-		Dialog::OK( sError );
+		LuaHelpers::ReportScriptError(sError, "NOTESKIN_ERROR");
 	}
 	
 	return matches[0];
@@ -469,7 +496,12 @@ public:
 	static int x ## ForNoteSkin( T* p, lua_State *L ) \
 	{ \
 		const RString sOldNoteSkin = p->GetCurrentNoteSkin(); \
-		p->SetCurrentNoteSkin( SArg(n+1) ); \
+		RString nsname= SArg(n+1); \
+		if(!p->DoesNoteSkinExist(nsname)) \
+		{ \
+			luaL_error(L, "Noteskin \"%s\" does not exist.", nsname.c_str()); \
+		} \
+		p->SetCurrentNoteSkin( nsname ); \
 		x( p, L ); \
 		p->SetCurrentNoteSkin( sOldNoteSkin ); \
 		return 1; \

src/ScreenManager.cpp

@@ -722,6 +722,11 @@ void ScreenManager::LoadDelayedScreen()
 {
 	RString sScreenName = m_sDelayedScreen;
 	m_sDelayedScreen = "";
+	if(!IsScreenNameValid(sScreenName))
+	{
+		LuaHelpers::ReportScriptError("Tried to go to invalid screen: " + sScreenName, "INVALID_SCREEN");
+		return;
+	}
 
 	// Pop the top screen, if any.
 	ScreenMessage SM = PopTopScreenInternal();