send NoteUpcoming messages to receptors

stepmania/src/NoteField.cpp

@@ -871,6 +871,7 @@ void NoteField::DrawPrimitives()
 		//
 		// Draw all TapNotes in this column
 		//
+		bool bAnyUpcomingInThisCol = false;
 
 		// draw notes from furthest to closest
 
@@ -924,7 +925,12 @@ void NoteField::DrawPrimitives()
 			bool bUseAdditionColoring = bIsAddition || bIsHopoPossible;
 			NoteDisplayCols *displayCols = tn.pn == PLAYER_INVALID ? m_pCurDisplay : m_pDisplays[tn.pn];
 			displayCols->display[c].DrawTap( tn, c, NoteRowToBeat(i), bHoldNoteBeginsOnThisBeat, bUseAdditionColoring, bIsInSelectionRange ? fSelectedRangeGlow : m_fPercentFadeToFail, m_fYReverseOffsetPixels, iDrawDistanceAfterTargetsPixels, iDrawDistanceBeforeTargetsPixels, FADE_BEFORE_TARGETS_PERCENT );
+			
+			bool bNoteIsUpcoming = NoteRowToBeat(i) > GAMESTATE->m_fSongBeat;
+			bAnyUpcomingInThisCol |= bNoteIsUpcoming;
 		}
+
+		cur->m_ReceptorArrowRow.SetNoteUpcoming( c, bAnyUpcomingInThisCol );
 	}
 
 	cur->m_GhostArrowRow.Draw();

stepmania/src/ReceptorArrowRow.cpp

@@ -94,6 +94,12 @@ void ReceptorArrowRow::SetPressed( int iCol )
 	m_ReceptorArrow[iCol]->SetPressed();
 }
 
+void ReceptorArrowRow::SetNoteUpcoming( int iCol, bool b )
+{
+	m_ReceptorArrow[iCol]->PlayCommand(b?"ShowNoteUpcoming":"HideNoteUpcoming");
+}
+
+
 /*
  * (c) 2001-2003 Chris Danford
  * All rights reserved.

stepmania/src/ReceptorArrowRow.h

@@ -21,6 +21,7 @@ public:
 
 	void Step( int iCol, TapNoteScore score );
 	void SetPressed( int iCol );
+	void SetNoteUpcoming( int iCol, bool b );
 	
 	void SetFadeToFailPercent( float fFadeToFailPercent ) { m_fFadeToFailPercent = fFadeToFailPercent; }