Use NoteFieldPositioning.

ArrowGetXPos should probably be XOffset, now.

stepmania/src/NoteField.cpp

@@ -24,6 +24,7 @@
 #include <math.h>
 #include "ThemeManager.h"
 #include "RageDisplay.h"
+#include "NoteFieldPositioning.h"
 
 
 const float HOLD_NOTE_BITS_PER_BEAT	= 6;
@@ -335,6 +336,8 @@ void NoteField::DrawPrimitives()
 
 	for( int c=0; c<GetNumTracks(); c++ )	// for each arrow column
 	{
+		GAMESTATE->m_Position[m_PlayerNumber]->BeginDrawTrack(c);
+
 		/////////////////////////////////
 		// Draw all HoldNotes in this column (so that they appear under the tap notes)
 		/////////////////////////////////
@@ -400,6 +403,8 @@ void NoteField::DrawPrimitives()
 
 			m_NoteDisplay[c].DrawTap( c, NoteRowToBeat(i), bHoldNoteBeginsOnThisBeat, bIsInSelectionRange ? fSelectedRangeGlow : m_fPercentFadeToFail );
 		}
+
+		GAMESTATE->m_Position[m_PlayerNumber]->EndDrawTrack(c);
 	}
 
 }