Check MakeActor rvs for NULL

src/ActorUtil.cpp

@@ -201,6 +201,8 @@ bool ActorUtil::LoadTableFromStackShowErrors( Lua *L )
 	return true;
 }
 
+// NOTE: This function can return NULL if the actor should not be displayed.
+// Callers should be aware of this and handle it appropriately.
 Actor* ActorUtil::MakeActor( const RString &sPath_, Actor *pParentActor )
 {
 	RString sPath( sPath_ );

src/BGAnimationLayer.cpp

@@ -520,6 +520,8 @@ void BGAnimationLayer::LoadFromNode( const XNode* pNode )
 			for( unsigned i=0; i<NumSprites; i++ )
 			{
 				Actor* pSprite = ActorUtil::MakeActor( sFile, this );
+				if( pSprite == NULL )
+					continue;
 				this->AddChild( pSprite );
 				pSprite->SetTextureWrapping( true );		// gets rid of some "cracks"
 				pSprite->SetZoom( randomf(fZoomMin,fZoomMax) );

src/Background.cpp

@@ -373,7 +373,8 @@ bool BackgroundImpl::Layer::CreateBackground( const Song *pSong, const Backgroun
 
 	Actor *pActor = ActorUtil::MakeActor( sEffectFile );
 
-	ASSERT( pActor != NULL );
+	if( pActor == NULL )
+		pActor = new Actor;
 	m_BGAnimations[bd] = pActor;
 
 	for( unsigned i=0; i<vsResolvedRef.size(); i++ )

src/ComboGraph.cpp

@@ -26,22 +26,35 @@ void ComboGraph::Load( RString sMetricsGroup )
 	Actor *pActor = NULL;
 
 	m_pBacking = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"Backing") );
-	m_pBacking->ZoomToWidth( BODY_WIDTH );
-	this->AddChild( m_pBacking );
+	if( m_pBacking != NULL )
+	{
+		m_pBacking->ZoomToWidth( BODY_WIDTH );
+		this->AddChild( m_pBacking );
+	}
 
 	m_pNormalCombo = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"NormalCombo") );
-	m_pNormalCombo->ZoomToWidth( BODY_WIDTH );
-	this->AddChild( m_pNormalCombo );
+	if( m_pNormalCombo != NULL )
+	{
+		m_pNormalCombo->ZoomToWidth( BODY_WIDTH );
+		this->AddChild( m_pNormalCombo );
+	}
 
 	m_pMaxCombo = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"MaxCombo") );
-	m_pMaxCombo->ZoomToWidth( BODY_WIDTH );
-	this->AddChild( m_pMaxCombo );
+	if( m_pMaxCombo != NULL )
+	{
+		m_pMaxCombo->ZoomToWidth( BODY_WIDTH );
+		this->AddChild( m_pMaxCombo );
+	}
 
 	pActor = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"ComboNumber") );
-	m_pComboNumber = dynamic_cast<BitmapText *>( pActor );
-	if( m_pComboNumber == NULL )
-		RageException::Throw( "ComboGraph: \"sMetricsGroup\" \"ComboNumber\" must be a BitmapText" );
-	this->AddChild( m_pComboNumber );
+	if( pActor != NULL )
+	{
+		m_pComboNumber = dynamic_cast<BitmapText *>( pActor );
+		if( m_pComboNumber != NULL )
+			this->AddChild( m_pComboNumber );
+		else
+			LOG->Warn( "ComboGraph: \"sMetricsGroup\" \"ComboNumber\" must be a BitmapText" );
+	}
 }	
 
 void ComboGraph::Set( const StageStats &s, const PlayerStageStats &pss )

src/Foreground.cpp

@@ -45,6 +45,8 @@ void Foreground::LoadFromSong( const Song *pSong )
 		{
 			bga.m_bga = ActorUtil::MakeActor( pSong->GetSongDir() + sBGName, this );
 		}
+		if( bga.m_bga == NULL )
+			continue;
 		bga.m_bga->SetName( sBGName );
 		bga.m_bga->PlayCommand( "Init" );
 		bga.m_fStartBeat = change.m_fStartBeat;

src/OptionRow.cpp

@@ -107,7 +107,10 @@ void OptionRowType::Load( const RString &sMetricsGroup, Actor *pParent )
 	m_textTitle.SetName( "Title" );
 	ActorUtil::LoadAllCommandsAndSetXY( m_textTitle, sMetricsGroup );
 
-	m_sprFrame.Load( ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"Frame"), pParent ) );
+	Actor *pActor = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"Frame"), pParent );
+	if( pActor == NULL )
+		pActor = new Actor;
+	m_sprFrame.Load( pActor );
 	m_sprFrame->SetName( "Frame" );
 	ActorUtil::LoadAllCommandsAndSetXY( m_sprFrame, sMetricsGroup );
 

src/ScreenHighScores.cpp

@@ -187,7 +187,8 @@ void ScoreScroller::Load( RString sMetricsGroup )
 	for( int i=0; i<iNumCopies; ++i )
 	{
 		Actor *pActor = ActorUtil::MakeActor( THEME->GetPathG(sMetricsGroup,"ScrollerItem") );
-		this->AddChild( pActor );
+		if( pActor != NULL )
+			this->AddChild( pActor );
 	}
 
 	DynamicActorScroller::SetTransformFromReference( THEME->GetMetricR(sMetricsGroup,"ScrollerItemTransformFunction") );

src/ScreenManager.cpp

@@ -584,8 +584,11 @@ void ScreenManager::PrepareScreen( const RString &sScreenName )
 		{
 			LOG->Trace( "Loading screen background \"%s\"", sNewBGA.c_str() );
 			Actor *pActor = ActorUtil::MakeActor( sNewBGA );
-			pActor->SetName( sNewBGA );
-			g_vPreparedBackgrounds.push_back( pActor );
+			if( pActor != NULL )
+			{
+				pActor->SetName( sNewBGA );
+				g_vPreparedBackgrounds.push_back( pActor );
+			}
 		}
 	}