- Added per-actor teleport fog modifications.

- New properties include TeleFogSourceType and TeleFogDestType.
- TeleFogSourceType is the fog left behind where the actor teleported away from.
- TeleFogDestType is the fog the actor sees when it arrives at its destination.
- Added A_SetTeleFog(<oldpos>,<newpos>) -- oldpos sets TeleFogSourceType, newpos sets TeleFogDestType.

src/actor.h

@@ -983,6 +983,8 @@ public:
 
 	FNameNoInit PainType;
 	FNameNoInit DeathType;
+	FNameNoInit TeleFogSourceType;
+	FNameNoInit TeleFogDestType;
 
 	FState *SpawnState;
 	FState *SeeState;

src/p_mobj.cpp

@@ -2680,18 +2680,10 @@ void P_NightmareRespawn (AActor *mobj)
 	mo->PrevZ = z;		// Do not interpolate Z position if we changed it since spawning.
 
 	// spawn a teleport fog at old spot because of removal of the body?
-	mo = Spawn ("TeleportFog", mobj->x, mobj->y, mobj->z, ALLOW_REPLACE);
-	if (mo != NULL)
-	{
-		mo->z += TELEFOGHEIGHT;
-	}
+	P_SpawnTeleportFog(mobj, mobj->x, mobj->y, mobj->z + TELEFOGHEIGHT, true);
 
 	// spawn a teleport fog at the new spot
-	mo = Spawn ("TeleportFog", x, y, z, ALLOW_REPLACE);
-	if (mo != NULL)
-	{
-		mo->z += TELEFOGHEIGHT;
-	}
+	P_SpawnTeleportFog(mobj, x, y, z + TELEFOGHEIGHT, false);
 
 	// remove the old monster
 	mobj->Destroy ();

src/p_spec.h

@@ -903,6 +903,7 @@ bool EV_DoChange (line_t *line, EChange changetype, int tag);
 //
 // P_TELEPT
 //
+void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool beforeTele = true, bool replace = true, bool setTarget = false); //Spawns teleport fog. Pass the actor to pluck TeleFogFromType and TeleFogToType. 'from' determines if this is the fog to spawn at the old position (true) or new (false).
 bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, angle_t angle, bool useFog, bool sourceFog, bool keepOrientation, bool haltVelocity = true, bool keepHeight = false);
 bool EV_Teleport (int tid, int tag, line_t *line, int side, AActor *thing, bool fog, bool sourceFog, bool keepOrientation, bool haltVelocity = true, bool keepHeight = false);
 bool EV_SilentLineTeleport (line_t *line, int side, AActor *thing, int id, INTBOOL reverse);

src/p_teleport.cpp

@@ -74,19 +74,23 @@ void ATeleportFog::PostBeginPlay ()
 //
 //==========================================================================
 
-void P_SpawnTeleportFog(fixed_t x, fixed_t y, fixed_t z, int spawnid)
+void P_SpawnTeleportFog(AActor *mobj, fixed_t x, fixed_t y, fixed_t z, bool beforeTele, bool replace, bool setTarget)
 {
-	const PClass *fog = P_GetSpawnableType(spawnid);
+	AActor *mo;
+	FNameNoInit tf = (beforeTele ? mobj->TeleFogSourceType : mobj->TeleFogDestType);
 
-	if (fog == NULL)
+	if (!tf) //If the actor doesn't have one, initialize the original.
 	{
-		AActor *mo = Spawn ("TeleportFog", x, y, z + TELEFOGHEIGHT, ALLOW_REPLACE);
+		mo = Spawn<ATeleportFog>(x, y, z, (replace ? ALLOW_REPLACE : NO_REPLACE));
 	}
 	else
 	{
-		AActor *mo = Spawn (fog, x, y, z, ALLOW_REPLACE);
-		if (mo != NULL) S_Sound(mo, CHAN_BODY, mo->SeeSound, 1.f, ATTN_NORM);
+		mo = Spawn(tf, x, y, z, (replace ? ALLOW_REPLACE : NO_REPLACE));
 	}
+
+	if (mo != NULL && setTarget)
+		mo->target = mobj;
+
 }
 
 //
@@ -186,8 +190,7 @@ bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, angle_t angle,
 	if (sourceFog && !predicting)
 	{
 		fixed_t fogDelta = thing->flags & MF_MISSILE ? 0 : TELEFOGHEIGHT;
-		AActor *fog = Spawn<ATeleportFog> (oldx, oldy, oldz + fogDelta, ALLOW_REPLACE);
-		fog->target = thing;
+		P_SpawnTeleportFog(thing, oldx, oldy, oldz, true, true, true); //Passes the actor through which then pulls the TeleFog metadate types based on properties.
 	}
 	if (useFog)
 	{
@@ -195,9 +198,8 @@ bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, angle_t angle,
 		{
 			fixed_t fogDelta = thing->flags & MF_MISSILE ? 0 : TELEFOGHEIGHT;
 			an = angle >> ANGLETOFINESHIFT;
-			AActor *fog = Spawn<ATeleportFog>(x + 20 * finecosine[an],
-				y + 20 * finesine[an], thing->z + fogDelta, ALLOW_REPLACE);
-			fog->target = thing;
+			P_SpawnTeleportFog(thing, x + 20 * finecosine[an], y + 20 * finesine[an], thing->z + fogDelta, false, true, true);
+
 		}
 		if (thing->player)
 		{

src/p_things.cpp

@@ -92,7 +92,7 @@ bool P_Thing_Spawn (int tid, AActor *source, int type, angle_t angle, bool fog,
 				mobj->angle = (angle != ANGLE_MAX ? angle : spot->angle);
 				if (fog)
 				{
-					Spawn<ATeleportFog> (spot->x, spot->y, spot->z + TELEFOGHEIGHT, ALLOW_REPLACE);
+					P_SpawnTeleportFog(mobj, spot->x, spot->y, spot->z + TELEFOGHEIGHT, false);
 				}
 				if (mobj->flags & MF_SPECIAL)
 					mobj->flags |= MF_DROPPED;	// Don't respawn
@@ -130,8 +130,8 @@ bool P_MoveThing(AActor *source, fixed_t x, fixed_t y, fixed_t z, bool fog)
 	{
 		if (fog)
 		{
-			Spawn<ATeleportFog> (x, y, z + TELEFOGHEIGHT, ALLOW_REPLACE);
-			Spawn<ATeleportFog> (oldx, oldy, oldz + TELEFOGHEIGHT, ALLOW_REPLACE);
+			P_SpawnTeleportFog(source, x, y, z);
+			P_SpawnTeleportFog(source, oldx, oldy, oldz, false);
 		}
 		source->PrevX = x;
 		source->PrevY = y;

src/thingdef/thingdef_codeptr.cpp

@@ -2938,9 +2938,10 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Respawn)
 {
 	ACTION_PARAM_START(1);
 	ACTION_PARAM_INT(flags, 0);
-
 	bool oktorespawn = false;
-
+	fixed_t oldx = self->x;
+	fixed_t oldy = self->y;
+	fixed_t oldz = self->z;
 	self->flags |= MF_SOLID;
 	self->height = self->GetDefault()->height;
 	CALL_ACTION(A_RestoreSpecialPosition, self);
@@ -2998,7 +2999,8 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Respawn)
 
 		if (flags & RSF_FOG)
 		{
-			Spawn<ATeleportFog> (self->x, self->y, self->z + TELEFOGHEIGHT, ALLOW_REPLACE);
+			P_SpawnTeleportFog(self, oldx, oldy, oldz, true);
+			P_SpawnTeleportFog(self, self->x, self->y, self->z, false);
 		}
 		if (self->CountsAsKill())
 		{
@@ -5377,3 +5379,24 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Remove)
 	}
 }
 
+//===========================================================================
+//
+// A_SetTeleFog
+//
+// Sets the teleport fog(s) for the calling actor.
+// Takes a name of the classes for te source and destination. 
+//===========================================================================
+
+DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SetTeleFog)
+{
+	ACTION_PARAM_START(2);
+	ACTION_PARAM_NAME(oldpos, 0);
+	ACTION_PARAM_NAME(newpos, 1);
+
+	if (oldpos)
+		self->TeleFogSourceType = oldpos;
+	if (newpos)
+		self->TeleFogDestType = newpos;
+}
+
+

src/thingdef/thingdef_properties.cpp

@@ -1416,6 +1416,26 @@ DEFINE_PROPERTY(stamina, I, Actor)
 	defaults->stamina = i;
 }
 
+//==========================================================================
+//
+//==========================================================================
+DEFINE_PROPERTY(telefogsourcetype, S, Actor)
+{
+	PROP_STRING_PARM(str, 0);
+	if (!stricmp(str, "TeleportFog")) defaults->TeleFogSourceType = NAME_None;
+	else defaults->TeleFogSourceType = str;
+}
+
+//==========================================================================
+//
+//==========================================================================
+DEFINE_PROPERTY(telefogdesttype, S, Actor)
+{
+	PROP_STRING_PARM(str, 0);
+	if (!stricmp(str, "TeleportFog")) defaults->TeleFogDestType = NAME_None;
+	else defaults->TeleFogDestType = str;
+}
+
 //==========================================================================
 //
 // Special inventory properties

wadsrc/static/actors/actor.txt

@@ -317,6 +317,7 @@ ACTOR Actor native //: Thinker
 	action native A_GiveToSiblings(class<Inventory> itemtype, int amount = 0);
 	action native A_TakeFromChildren(class<Inventory> itemtype, int amount = 0);
 	action native A_TakeFromSiblings(class<Inventory> itemtype, int amount = 0);
+	action native A_SetTeleFog(name oldpos, name newpos);
 
 	action native A_CheckSightOrRange(float distance, state label);
 	action native A_CheckRange(float distance, state label);