cleanups

stepmania/src/ComboGraph.cpp

@@ -83,7 +83,7 @@ void ComboGraph::Load( const StageStats &s, const PlayerStageStats &pss )
 		if( !bIsMax )
 			continue;
 
-		BitmapText *pText = dynamic_cast<BitmapText*>( m_pMaxComboText->Copy() ); // XXX Copy should be covariant
+		BitmapText *pText = m_pMaxComboText->Copy();
 
 		const float fStart = SCALE( combo.fStartSecond, fFirstSecond, fLastSecond, 0.0f, 1.0f );
 		const float fSize = SCALE( combo.fSizeSeconds, 0, fLastSecond-fFirstSecond, 0.0f, 1.0f );

stepmania/src/ScreenTextEntry.cpp

@@ -325,7 +325,7 @@ void ScreenTextEntryVisual::Init()
 			for( int x=0; x<KEYS_PER_ROW; ++x )
 			{
 				BitmapText *&pbt = m_ptextKeys[r][x];
-				pbt = dynamic_cast<BitmapText *>( text.Copy() ); // XXX: Copy() should be covariant
+				pbt = text.Copy();
 				this->AddChild( pbt );
 
 				RString s = g_szKeys[r][x];

stepmania/src/WheelBase.cpp

@@ -60,8 +60,7 @@ void WheelBase::Load( RString sType )
 	ActorUtil::LoadAllCommands( *pTempl, m_sName );
 	for( int i=0; i<NUM_WHEEL_ITEMS; i++ )
 	{
-		Actor *pActor = pTempl->Copy();
-		WheelItemBase *pItem = dynamic_cast<WheelItemBase *>( pActor ); // XXX: ugly cast
+		WheelItemBase *pItem = pTempl->Copy();
 		DEBUG_ASSERT( pItem );
 		m_WheelBaseItems.push_back( pItem );
 	}