- added mapSpawned member to DDukeActor

Duke uses the owner a lot to check if an actor was spawned at map start or in-game, but that depends a lot on stale pointers being maintained, which our garbage collected system does not allow. So this field now serves as a more reliable stand-in for these cases.
No actual changes yet.

source/games/duke/src/premap_d.cpp

@@ -259,6 +259,7 @@ void cacheit_d(void)
 //---------------------------------------------------------------------------
 void spriteinit_d(DDukeActor* actor, TArray<DDukeActor*>& actors)
 {
+	actor->mapSpawned = true;
 	bool res = initspriteforspawn(actor);
 	if (res) spawninit_d(nullptr, actor, &actors);
 }

source/games/duke/src/premap_r.cpp

@@ -399,6 +399,7 @@ void cacheit_r(void)
 
 void spriteinit_r(DDukeActor* actor, TArray<DDukeActor*>& actors)
 {
+	actor->mapSpawned = true;
 	bool res = initspriteforspawn(actor);
 	if (res) spawninit_r(nullptr, actor, &actors);
 }

source/games/duke/src/savegame.cpp

@@ -270,6 +270,7 @@ void DDukeActor::Serialize(FSerializer& arc)
 		("actorstayput", actorstayput)
 		("basepicnum", basepicnum)
 		("timetosleep", timetosleep)
+		("mapspawned", mapSpawned)
 		("floorz", floorz)
 		("ceilingz", ceilingz)
 		("lastvx", ovel.X)

source/games/duke/src/types.h

@@ -47,6 +47,7 @@ public:
 	short attackertype, hitextra;
 	short tempval, basepicnum;
 	unsigned short timetosleep;
+	bool mapSpawned;
 	DVector2 ovel;
 	DAngle hitang;
 	double floorz, ceilingz;

source/games/duke/src/vmexports.cpp

@@ -224,6 +224,7 @@ DEFINE_FIELD(DDukeActor, hitextra)
 DEFINE_FIELD(DDukeActor, movflag)
 DEFINE_FIELD(DDukeActor, tempval)
 DEFINE_FIELD(DDukeActor, timetosleep)
+DEFINE_FIELD(DDukeActor, mapSpawned)
 DEFINE_FIELD(DDukeActor, floorz)
 DEFINE_FIELD(DDukeActor, ceilingz)
 DEFINE_FIELD(DDukeActor, saved_ammo)

wadsrc/static/zscript/games/duke/dukeactor.zs

@@ -125,6 +125,7 @@ class DukeActor : CoreActor native
 	native int16 /*attackertype, hitang,*/ hitextra, movflag;
 	native int16 tempval; /*, dispicnum;*/
 	native int16 timetosleep;
+	native bool mapSpawned;
 	native double floorz, ceilingz;
 	native int saved_ammo;
 	native int palvals;