add SSMaster::WrapScroller and ScrollerFastCatchup

stepmania/Themes/default/metrics.ini

@@ -2994,6 +2994,8 @@ NumIconParts=0
 NumCursorParts=0
 NumPreviewParts=0
 ShowScroller=0
+WrapScroller=0
+ScrollerFastCatchup=0
 # All on page 1 by default.
 NumChoicesOnPage1=999
 SharedPreviewAndCursor=1
@@ -3285,6 +3287,8 @@ NumIconParts=0
 NumCursorParts=0
 NumPreviewParts=0
 ShowScroller=0
+WrapScroller=0
+ScrollerFastCatchup=0
 # All on page 1 by default.
 NumChoicesOnPage1=999
 SharedPreviewAndCursor=1

stepmania/src/ActorScroller.cpp

@@ -127,11 +127,13 @@ void ActorScroller::Load2(
 void ActorScroller::Load3(
 	float fSecondsPerItem, 
 	float fNumItemsToDraw, 
+	bool bFastCatchup,
 	const CString &sExprTransform
 	)
 {
 	m_fSecondsPerItem = fSecondsPerItem;
 	m_fNumItemsToDraw = fNumItemsToDraw;
+	m_bFastCatchup = bFastCatchup;
 	m_exprTransform.SetFromExpression( sExprTransform );
 	m_fQuantizePixels = 0;
 	m_bLoaded = true;
@@ -230,7 +232,17 @@ void ActorScroller::Update( float fDeltaTime )
 
 	float fOldItemAtTop = m_fCurrentItem;
 	if( m_fSecondsPerItem > 0 )
-		fapproach( m_fCurrentItem, m_fDestinationItem, fDeltaTime/m_fSecondsPerItem );
+	{
+		float fApproachSpeed = fDeltaTime/m_fSecondsPerItem;
+		if( m_bFastCatchup )
+		{
+			float fDistanceToMove = fabsf(m_fCurrentItem - m_fDestinationItem);
+			if( fDistanceToMove > 1 )
+				fApproachSpeed *= fDistanceToMove*fDistanceToMove;
+		}
+
+		fapproach( m_fCurrentItem, m_fDestinationItem, fApproachSpeed );
+	}
 
 	// if items changed, then pause
 	if( (int)fOldItemAtTop != (int)m_fCurrentItem )
@@ -294,8 +306,6 @@ void ActorScroller::DrawPrimitives()
 
 	bool bDelayedDraw = m_bDrawByZPosition && !m_bLoop;
 	vector<Actor*> subs;
-	if( bDelayedDraw )
-		subs = m_SubActors;
 
 	for( int iItem=(int)truncf(ceilf(fFirstItemToDraw)); iItem<=fLastItemToDraw; iItem++ )
 	{

stepmania/src/ActorScroller.h

@@ -47,6 +47,7 @@ public:
 	void Load3(
 		float fSecondsPerItem, 
 		float fNumItemsToDraw, 
+		bool bFastCatchup,
 		const CString &sExprTransform );
 
 	virtual void Update( float fDelta );
@@ -56,6 +57,7 @@ public:
 	
 	void SetDestinationItem( float fItemIndex )				{ m_fDestinationItem = fItemIndex; }
 	void SetCurrentAndDestinationItem( float fItemIndex )	{ m_fCurrentItem = m_fDestinationItem = fItemIndex; }
+	float GetCurrentItem()									{ return m_fCurrentItem; }
 	float GetDestinationItem()								{ return m_fDestinationItem; }
 	void SetPauseCountdownSeconds( float fSecs )			{ m_fPauseCountdownSeconds = fSecs; }
 
@@ -76,6 +78,7 @@ protected:
 	float	m_fSecondsPauseBetweenItems;
 	float	m_fNumItemsToDraw;
 	bool	m_bLoop; 
+	bool	m_bFastCatchup; 
 	float	m_fPauseCountdownSeconds;
 	float	m_fQuantizePixels;
 

stepmania/src/ScreenSelectMaster.cpp

@@ -38,6 +38,8 @@ ScreenSelectMaster::ScreenSelectMaster( CString sClassName ) : ScreenSelect( sCl
 	SLEEP_AFTER_TWEEN_OFF_SECONDS(m_sName,"SleepAfterTweenOffSeconds"),
 	OPTION_ORDER(m_sName,OPTION_ORDER_NAME,NUM_MENU_DIRS),
 	WRAP_CURSOR(m_sName,"WrapCursor"),
+	WRAP_SCROLLER(m_sName,"WrapScroller"),
+	SCROLLER_FAST_CATCHUP(m_sName,"ScrollerFastCatchup"),
 	ALLOW_REPEATING_INPUT(m_sName,"AllowRepeatingInput"),
 	SHOW_SCROLLER(m_sName,"ShowScroller"),
 	SCROLLER_SECONDS_PER_ITEM(m_sName,"ScrollerSecondsPerItem"),
@@ -101,6 +103,7 @@ void ScreenSelectMaster::Init()
 			m_Scroller[0].Load3( 
 				SCROLLER_SECONDS_PER_ITEM, 
 				SCROLLER_NUM_ITEMS_TO_DRAW,
+				SCROLLER_FAST_CATCHUP,
 				SCROLLER_TRANSFORM 
 				);
 			m_Scroller[0].SetName( "Scroller" );
@@ -122,6 +125,7 @@ void ScreenSelectMaster::Init()
 				m_Scroller[p].Load3(
 					SCROLLER_SECONDS_PER_ITEM, 
 					SCROLLER_NUM_ITEMS_TO_DRAW,
+					SCROLLER_FAST_CATCHUP,
 					SCROLLER_TRANSFORM 
 					);
 				m_Scroller[p].SetName( ssprintf("ScrollerP%d",p+1) );
@@ -384,7 +388,7 @@ bool ScreenSelectMaster::Move( PlayerNumber pn, MenuDir dir )
 	}
 	while( !m_aGameCommands[iSwitchToIndex].IsPlayable() );
 
-	return ChangeSelection( pn, iSwitchToIndex );
+	return ChangeSelection( pn, dir, iSwitchToIndex );
 }
 
 void ScreenSelectMaster::MenuLeft( PlayerNumber pn, const InputEventType type )
@@ -518,7 +522,7 @@ bool ScreenSelectMaster::ChangePage( int iNewChoice )
 	return true;
 }
 
-bool ScreenSelectMaster::ChangeSelection( PlayerNumber pn, int iNewChoice )
+bool ScreenSelectMaster::ChangeSelection( PlayerNumber pn, MenuDir dir, int iNewChoice )
 {
 	if( iNewChoice == m_iChoice[pn] )
 		return false; // already there
@@ -583,6 +587,23 @@ bool ScreenSelectMaster::ChangeSelection( PlayerNumber pn, int iNewChoice )
 
 		if( SHOW_SCROLLER )
 		{
+			if( WRAP_SCROLLER )
+			{
+				// HACK: We can't tell from the option orders whether or not we wrapped.
+				// For now, assume that the order is increasing left to right.
+				int iPressedDir = (dir == MENU_DIR_LEFT) ? -1 : +1;
+				int iActualDir = (iOldChoice < iNewChoice) ? +1 : -1;
+
+				if( iPressedDir != iActualDir )	// wrapped
+				{
+					ActorScroller &scroller = SHARED_PREVIEW_AND_CURSOR ? m_Scroller[0] : m_Scroller[p];
+					float fItem = scroller.GetCurrentItem();
+					int iNumChoices = m_aGameCommands.size();
+					fItem += iActualDir * iNumChoices;
+					scroller.SetCurrentAndDestinationItem( fItem );
+				}
+			}
+
 			if( SHARED_PREVIEW_AND_CURSOR )
 				m_Scroller[0].SetDestinationItem( (float)iNewChoice );
 			else

stepmania/src/ScreenSelectMaster.h

@@ -52,6 +52,8 @@ protected:
 	ThemeMetric<float>		SLEEP_AFTER_TWEEN_OFF_SECONDS;
 	ThemeMetric1D<CString>	OPTION_ORDER;
 	ThemeMetric<bool>		WRAP_CURSOR;
+	ThemeMetric<bool>		WRAP_SCROLLER;
+	ThemeMetric<bool>		SCROLLER_FAST_CATCHUP;
 	ThemeMetric<bool>		ALLOW_REPEATING_INPUT;
 	ThemeMetric<bool>		SHOW_SCROLLER;
 	ThemeMetric<float>		SCROLLER_SECONDS_PER_ITEM;
@@ -67,7 +69,7 @@ protected:
 
 	bool Move( PlayerNumber pn, MenuDir dir );
 	bool ChangePage( int iNewChoice );
-	bool ChangeSelection( PlayerNumber pn, int iNewChoice );
+	bool ChangeSelection( PlayerNumber pn, MenuDir dir, int iNewChoice );
 	float DoMenuStart( PlayerNumber pn );
 
 	float GetCursorX( PlayerNumber pn, int iPartIndex );