- SW/Exhumed fixed sound relinking on actor destruction.

This still passed the sprites instead of the actors. Moved the relinking code to DCoreActor::Destroy because it is the same for all games.
Also did a little bit of sound cleanup to ensure the sound backend does not hold stale actor pointers.

source/core/actorlist.cpp

@@ -35,6 +35,7 @@
 #include "build.h"
 #include "coreactor.h"
 #include "gamefuncs.h"
+#include "raze_sound.h"
 
 // Doubly linked ring list of Actors
 
@@ -367,6 +368,21 @@ DCoreActor* InsertActor(PClass* type, sectortype* sector, int stat, bool tail)
 
 void DCoreActor::OnDestroy()
 {
+	FVector3 pos = GetSoundPos(&spr.pos);
+	soundEngine->RelinkSound(SOURCE_Actor, this, nullptr, &pos);
+
+	// also scan all other sounds if they have this actor as source. If so, null the source and stop looped sounds.
+	soundEngine->EnumerateChannels([=](FSoundChan* chan)
+		{
+			if (chan->Source == this)
+			{
+				if (chan->ChanFlags & CHANF_LOOP) soundEngine->StopChannel(chan);
+				else chan->Source = nullptr;
+			}
+			return 0;
+		});
+
+
 	if(link_stat == INT_MAX) return;
 
 	int stat = link_stat;

source/core/raze_sound.cpp

@@ -258,6 +258,17 @@ else
 		// Add a small delay so that eviction only runs once the game is up and runnnig.
 		soundEngine->SetRestartTime(I_GetTime() + 2);
 	}
+	// Check if there's actor sounds without an actor. This can happen if a savegame is badly timed with a freshly destroyed actor.
+	soundEngine->EnumerateChannels([](FSoundChan* chan)
+		{
+			auto eng = static_cast<RazeSoundEngine*>(soundEngine);
+			if (eng->SourceIsActor(chan) && chan->Source == nullptr)
+			{
+				eng->StopChannel(chan);
+			}
+			return 0;
+		});
+
 	GSnd->Sync(false);
 	GSnd->UpdateSounds();
 }

source/games/blood/src/db.cpp

@@ -50,10 +50,6 @@ DBloodActor* InsertSprite(sectortype* pSector, int nStat)
 
 int DeleteSprite(DBloodActor* actor)
 {
-    auto sp = &actor->s();
-    FVector3 pos = GetSoundPos(&actor->s().pos);
-    soundEngine->RelinkSound(SOURCE_Actor, actor, nullptr, &pos);
-
 #ifdef NOONE_EXTENSIONS
     for (auto& ctrl : gPlayerCtrl) if (ctrl.qavScene.initiator == actor) ctrl.qavScene.initiator = nullptr;
 #endif

source/games/duke/src/actors.cpp

@@ -76,8 +76,7 @@ void deletesprite(DDukeActor *const actor)
 {
 	if (actor->s->picnum == MUSICANDSFX && actor->temp_data[0] == 1)
 		S_StopSound(actor->s->lotag, actor);
-	else
-		S_RelinkActorSound(actor, nullptr);
+
 	actor->Destroy();
 }
 

source/games/duke/src/sounds.cpp

@@ -553,12 +553,6 @@ int S_PlayActorSound(int soundNum, DDukeActor* actor, int channel, EChanFlags fl
 		S_PlaySound3D(soundNum, actor, &actor->s->pos, channel, flags));
 }
 
-void S_RelinkActorSound(DDukeActor* from, DDukeActor* to)
-{
-	FVector3 pos = GetSoundPos(&from->s->pos);
-	soundEngine->RelinkSound(SOURCE_Actor, from, to, &pos);
-}
-
 void S_StopSound(int sndNum, DDukeActor* actor, int channel)
 {
 	sndNum = GetReplacementSound(sndNum);

source/games/duke/src/sounds.h

@@ -42,7 +42,6 @@ void S_WorldTourMappingsForOldSounds();
 int S_PlaySound(int num, int channel = CHAN_AUTO, EChanFlags flags = 0, float vol =0.8f);
 int S_PlaySound3D(int num, DDukeActor* spriteNum, const vec3_t* pos, int channel = CHAN_AUTO, EChanFlags flags = 0);
 int S_PlayActorSound(int soundNum, DDukeActor* spriteNum, int channel = CHAN_AUTO, EChanFlags flags = 0);
-void S_RelinkActorSound(DDukeActor* from, DDukeActor* to);
 void S_MenuSound(void);
 
 void S_StopSound(int sndNum, DDukeActor* spr = nullptr, int flags = -1);

source/games/exhumed/src/exhumed.cpp

@@ -532,9 +532,6 @@ void DeleteActor(DExhumedActor* actor)
         return;
     }
 
-    FVector3 pos = GetSoundPos(&actor->s().pos);
-    soundEngine->RelinkSound(SOURCE_Actor, &actor->s(), nullptr, &pos);
-
     if (actor == bestTarget) {
         bestTarget = nullptr;
     }

source/games/sw/src/sprite.cpp

@@ -765,9 +765,6 @@ void KillActor(DSWActor* actor)
         actor->clearUser();
     }
 
-    FVector3 pos = GetSoundPos(&actor->s().pos);
-    soundEngine->RelinkSound(SOURCE_Actor, &actor->s(), nullptr, &pos);
-
     // shred your garbage
     sp->clear();
     actor->Destroy();