From b0db5d9b169b858a7b0a5ef265474c36a29afd00 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Wed, 6 Jan 2016 02:16:33 +0100
Subject: [PATCH] - 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 |  1 +
 src/p_doors.cpp   |  2 ++
 src/p_floor.cpp   |  2 ++
 src/p_pillar.cpp  | 23 +++++++++++++----------
 src/p_plats.cpp   |  2 ++
 src/r_defs.h      |  1 +
 6 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/src/p_ceiling.cpp b/src/p_ceiling.cpp
index 7efef80a5..37cf91b47 100644
--- a/src/p_ceiling.cpp
+++ b/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);
diff --git a/src/p_doors.cpp b/src/p_doors.cpp
index 49ed20f46..f01f2beeb 100644
--- a/src/p_doors.cpp
+++ b/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;
diff --git a/src/p_floor.cpp b/src/p_floor.cpp
index 42372888b..e9febae66 100644
--- a/src/p_floor.cpp
+++ b/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);
diff --git a/src/p_pillar.cpp b/src/p_pillar.cpp
index 884218bee..b1cae3af9 100644
--- a/src/p_pillar.cpp
+++ b/src/p_pillar.cpp
@@ -198,17 +198,20 @@ DPillar::DPillar (sector_t *sector, EPillar type, fixed_t speed,
 		m_FloorSpeed = Scale (speed, floordist, ceilingdist);
 	}
 
-	if (sector->seqType >= 0)
+	if (!(m_Sector->Flags & SECF_SILENTMOVE))
 	{
-		SN_StartSequence (sector, CHAN_FLOOR, sector->seqType, SEQ_PLATFORM, 0);
-	}
-	else if (sector->SeqName != NAME_None)
-	{
-		SN_StartSequence (sector, CHAN_FLOOR, sector->SeqName, 0);
-	}
-	else
-	{
-		SN_StartSequence (sector, CHAN_FLOOR, "Floor", 0);
+		if (sector->seqType >= 0)
+		{
+			SN_StartSequence(sector, CHAN_FLOOR, sector->seqType, SEQ_PLATFORM, 0);
+		}
+		else if (sector->SeqName != NAME_None)
+		{
+			SN_StartSequence(sector, CHAN_FLOOR, sector->SeqName, 0);
+		}
+		else
+		{
+			SN_StartSequence(sector, CHAN_FLOOR, "Floor", 0);
+		}
 	}
 }
 
diff --git a/src/p_plats.cpp b/src/p_plats.cpp
index eecf521ee..280eb415c 100644
--- a/src/p_plats.cpp
+++ b/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);
diff --git a/src/r_defs.h b/src/r_defs.h
index d5321a0c3..3a024831c 100644
--- a/src/r_defs.h
+++ b/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