- added a SECF_SILENTMOVE flag.

Since Eternity got this it's a good candidate for a potential Super-Boom standard, and it's also useful for silencing a sector temporarily without removing the sound sequence.

src/p_ceiling.cpp

@@ -90,6 +90,7 @@ void DCeiling::Serialize (FArchive &arc)
 
 void DCeiling::PlayCeilingSound ()
 {
+	if (m_Sector->Flags & SECF_SILENTMOVE) return;
 	if (m_Sector->seqType >= 0)
 	{
 		SN_StartSequence (m_Sector, CHAN_CEILING, m_Sector->seqType, SEQ_PLATFORM, 0, false);

src/p_doors.cpp

@@ -250,6 +250,8 @@ void DDoor::DoorSound(bool raise, DSeqNode *curseq) const
 
 	choice = !raise;
 
+	if (m_Sector->Flags & SECF_SILENTMOVE) return;
+
 	if (m_Speed >= FRACUNIT*8)
 	{
 		choice += 2;

src/p_floor.cpp

@@ -55,6 +55,8 @@ inline FArchive &operator<< (FArchive &arc, DFloor::EFloor &type)
 
 static void StartFloorSound (sector_t *sec)
 {
+	if (sec->Flags & SECF_SILENTMOVE) return;
+
 	if (sec->seqType >= 0)
 	{
 		SN_StartSequence (sec, CHAN_FLOOR, sec->seqType, SEQ_PLATFORM, 0);

src/p_pillar.cpp

@@ -198,6 +198,8 @@ DPillar::DPillar (sector_t *sector, EPillar type, fixed_t speed,
 		m_FloorSpeed = Scale (speed, floordist, ceilingdist);
 	}
 
+	if (!(m_Sector->Flags & SECF_SILENTMOVE))
+	{
 		if (sector->seqType >= 0)
 		{
 			SN_StartSequence(sector, CHAN_FLOOR, sector->seqType, SEQ_PLATFORM, 0);
@@ -211,6 +213,7 @@ DPillar::DPillar (sector_t *sector, EPillar type, fixed_t speed,
 			SN_StartSequence(sector, CHAN_FLOOR, "Floor", 0);
 		}
 	}
+}
 
 bool EV_DoPillar (DPillar::EPillar type, line_t *line, int tag,
 				  fixed_t speed, fixed_t height, fixed_t height2, int crush, bool hexencrush)

src/p_plats.cpp

@@ -72,6 +72,8 @@ void DPlat::Serialize (FArchive &arc)
 
 void DPlat::PlayPlatSound (const char *sound)
 {
+	if (m_Sector->Flags & SECF_SILENTMOVE) return;
+
 	if (m_Sector->seqType >= 0)
 	{
 		SN_StartSequence (m_Sector, CHAN_FLOOR, m_Sector->seqType, SEQ_PLATFORM, 0);

src/r_defs.h

@@ -357,6 +357,7 @@ enum
 	SECF_NORESPAWN		= 8,	// players can not respawn in this sector
 	SECF_FRICTION		= 16,	// sector has friction enabled
 	SECF_PUSH			= 32,	// pushers enabled
+	SECF_SILENTMOVE		= 64,	// Sector movement makes mo sound (Eternity got this so this may be useful for an extended cross-port standard.) 
 
 
 	SECF_WASSECRET		= 1 << 30,	// a secret that was discovered