From 93931704087c35316a3ab39e514fe7cef5b3bee4 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sat, 20 Aug 2022 09:25:05 +0200
Subject: [PATCH] - new utilities for SO floatification.

---
 source/games/sw/src/game.h     |  6 ++++++
 source/games/sw/src/sector.cpp | 12 ++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/source/games/sw/src/game.h b/source/games/sw/src/game.h
index 25d2a54ec..42c4e7033 100644
--- a/source/games/sw/src/game.h
+++ b/source/games/sw/src/game.h
@@ -1597,6 +1597,7 @@ double Distance(const DVector2& pos1, const DVector2& pos2)
 
 int NewStateGroup(DSWActor* actor, STATE* SpriteGroup[]);
 void SectorMidPoint(sectortype* sect, int *xmid, int *ymid, int *zmid);
+DVector3 SectorMidPoint(sectortype* sectp);
 void SpawnUser(DSWActor* actor, short id, STATE* state);
 
 short ActorFindTrack(DSWActor* actor, int8_t player_dir, int track_type, int *track_point_num, int *track_dir);
@@ -1640,6 +1641,11 @@ inline void PlaySound(int num, const vec3_t &pos, int flags, int channel = 8, EC
 {
 	_PlaySound(num, nullptr, nullptr, &pos, flags, channel, sndflags);
 }
+inline void PlaySound(int num, const DVector3& pos, int flags, int channel = 8, EChanFlags sndflags = CHANF_NONE)
+{
+    vec3_t ppos = { int(pos.X * worldtoint), int(pos.Y * worldtoint), int(pos.Z * zworldtoint) };
+    _PlaySound(num, nullptr, nullptr, &ppos, flags, channel, sndflags);
+}
 
 int _PlayerSound(int num, PLAYER* pp);
 inline int PlayerSound(int num, int flags, PLAYER* pp) { return _PlayerSound(num, pp); }
diff --git a/source/games/sw/src/sector.cpp b/source/games/sw/src/sector.cpp
index 34873c073..ebe50494d 100644
--- a/source/games/sw/src/sector.cpp
+++ b/source/games/sw/src/sector.cpp
@@ -604,6 +604,18 @@ void SectorMidPoint(sectortype* sectp, int *xmid, int *ymid, int *zmid)
     *zmid = (sectp->int_floorz() + sectp->int_ceilingz()) >> 1;
 }
 
+DVector3 SectorMidPoint(sectortype* sectp)
+{
+    DVector3 sum(0,0,0);
+
+    for (auto& wal : wallsofsector(sectp))
+    {
+        sum += wal.pos;
+    }
+    sum /= sectp->wallnum;
+    sum.Z = (sectp->floorz + sectp->ceilingz) * 0.5;
+    return sum;
+}
 
 void DoSpringBoard(PLAYER* pp)
 {