diff --git a/src/fragglescript/t_func.cpp b/src/fragglescript/t_func.cpp
index 0587414018..9461145209 100644
--- a/src/fragglescript/t_func.cpp
+++ b/src/fragglescript/t_func.cpp
@@ -3367,7 +3367,7 @@ void FParser::SF_RadiusAttack()
 
 		if (spot && source)
 		{
-			P_RadiusAttack(spot, source, damage, damage, NAME_None, true);
+			P_RadiusAttack(spot, source, damage, damage, NAME_None, RADF_HURTSOURCE);
 		}
 	}
 }
diff --git a/src/g_doom/a_archvile.cpp b/src/g_doom/a_archvile.cpp
index 53e0ea2022..2bd65b7a09 100644
--- a/src/g_doom/a_archvile.cpp
+++ b/src/g_doom/a_archvile.cpp
@@ -136,7 +136,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_VileAttack)
 						 target->y - FixedMul (24*FRACUNIT, finesine[an]),
 						 target->z);
 		
-		P_RadiusAttack (fire, self, blastdmg, blastrad, dmgtype, false);
+		P_RadiusAttack (fire, self, blastdmg, blastrad, dmgtype, 0);
 	}
 	target->velz = Scale(thrust, 1000, target->Mass);
 }
diff --git a/src/g_doom/a_fatso.cpp b/src/g_doom/a_fatso.cpp
index 2a824a0729..066e60468c 100644
--- a/src/g_doom/a_fatso.cpp
+++ b/src/g_doom/a_fatso.cpp
@@ -141,7 +141,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Mushroom)
 	if (n == 0) n = self->Damage; // GetMissileDamage (0, 1);
 	if (spawntype == NULL) spawntype = PClass::FindClass("FatShot");
 
-	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, !(flags & MSF_DontHurt));
+	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, (flags & MSF_DontHurt) ? 0 : RADF_HURTSOURCE);
 	P_CheckSplash(self, 128<<FRACBITS);
 
 	// Now launch mushroom cloud
diff --git a/src/g_heretic/a_hereticartifacts.cpp b/src/g_heretic/a_hereticartifacts.cpp
index c7d941b87e..1c9df572ca 100644
--- a/src/g_heretic/a_hereticartifacts.cpp
+++ b/src/g_heretic/a_hereticartifacts.cpp
@@ -50,7 +50,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_TimeBomb)
 	self->z += 32*FRACUNIT;
 	self->RenderStyle = STYLE_Add;
 	self->alpha = FRACUNIT;
-	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, true);
+	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, RADF_HURTSOURCE);
 	P_CheckSplash(self, 128<<FRACBITS);
 }
 
diff --git a/src/g_heretic/a_hereticmisc.cpp b/src/g_heretic/a_hereticmisc.cpp
index 972d2dc7f8..a8d4fcb8f9 100644
--- a/src/g_heretic/a_hereticmisc.cpp
+++ b/src/g_heretic/a_hereticmisc.cpp
@@ -198,7 +198,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_VolcBallImpact)
 		self->z += 28*FRACUNIT;
 		//self->velz = 3*FRACUNIT;
 	}
-	P_RadiusAttack (self, self->target, 25, 25, NAME_Fire, true);
+	P_RadiusAttack (self, self->target, 25, 25, NAME_Fire, RADF_HURTSOURCE);
 	for (i = 0; i < 4; i++)
 	{
 		tiny = Spawn("VolcanoTBlast", self->x, self->y, self->z, ALLOW_REPLACE);
diff --git a/src/g_hexen/a_flechette.cpp b/src/g_hexen/a_flechette.cpp
index 97f98f1df8..5c28b83586 100644
--- a/src/g_hexen/a_flechette.cpp
+++ b/src/g_hexen/a_flechette.cpp
@@ -420,7 +420,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_PoisonBagDamage)
 {
 	int bobIndex;
 	
-	P_RadiusAttack (self, self->target, 4, 40, self->DamageType, true);
+	P_RadiusAttack (self, self->target, 4, 40, self->DamageType, RADF_HURTSOURCE);
 	bobIndex = self->special2;
 	self->z += finesine[bobIndex << BOBTOFINESHIFT] >> 1;
 	self->special2 = (bobIndex + 1) & 63;
diff --git a/src/g_strife/a_strifestuff.cpp b/src/g_strife/a_strifestuff.cpp
index 41e21f755f..d51b618b70 100644
--- a/src/g_strife/a_strifestuff.cpp
+++ b/src/g_strife/a_strifestuff.cpp
@@ -683,7 +683,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_DropFire)
 {
 	AActor *drop = Spawn("FireDroplet", self->x, self->y, self->z + 24*FRACUNIT, ALLOW_REPLACE);
 	drop->velz = -FRACUNIT;
-	P_RadiusAttack (self, self, 64, 64, NAME_Fire, false);
+	P_RadiusAttack (self, self, 64, 64, NAME_Fire, 0);
 }
 
 DEFINE_ACTION_FUNCTION(AActor, A_CrispyPlayer)
diff --git a/src/g_strife/a_strifeweapons.cpp b/src/g_strife/a_strifeweapons.cpp
index 596e91e078..8fa71304b5 100644
--- a/src/g_strife/a_strifeweapons.cpp
+++ b/src/g_strife/a_strifeweapons.cpp
@@ -567,7 +567,7 @@ int APhosphorousFire::DoSpecialDamage (AActor *target, int damage, FName damaget
 
 DEFINE_ACTION_FUNCTION(AActor, A_BurnArea)
 {
-	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, true);
+	P_RadiusAttack (self, self->target, 128, 128, self->DamageType, RADF_HURTSOURCE);
 }
 
 DEFINE_ACTION_FUNCTION(AActor, A_Burnination)
diff --git a/src/g_strife/a_thingstoblowup.cpp b/src/g_strife/a_thingstoblowup.cpp
index 9727bccd1b..7d2c1ceee8 100644
--- a/src/g_strife/a_thingstoblowup.cpp
+++ b/src/g_strife/a_thingstoblowup.cpp
@@ -69,7 +69,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_ExtraLightOff)
 
 DEFINE_ACTION_FUNCTION(AActor, A_Explode512)
 {
-	P_RadiusAttack (self, self->target, 512, 512, NAME_None, true);
+	P_RadiusAttack (self, self->target, 512, 512, NAME_None, RADF_HURTSOURCE);
 	if (self->target != NULL && self->target->player != NULL)
 	{
 		self->target->player->extralight = 5;
diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index 3494792e63..a0367123ae 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -3161,7 +3161,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Die)
 DEFINE_ACTION_FUNCTION(AActor, A_Detonate)
 {
 	int damage = self->GetMissileDamage (0, 1);
-	P_RadiusAttack (self, self->target, damage, damage, self->DamageType, true);
+	P_RadiusAttack (self, self->target, damage, damage, self->DamageType, RADF_HURTSOURCE);
 	P_CheckSplash(self, damage<<FRACBITS);
 }
 
diff --git a/src/p_local.h b/src/p_local.h
index 205ec15c34..4c57ef099c 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -479,8 +479,15 @@ void	P_PlaySpawnSound(AActor *missile, AActor *spawner);
 void	P_AimCamera (AActor *t1, fixed_t &x, fixed_t &y, fixed_t &z, sector_t *&sec);
 
 // [RH] Means of death
+enum
+{
+	RADF_HURTSOURCE = 1,
+	RADF_NOIMPACTDAMAGE = 2,
+	RADF_SOURCEISSPOT = 4,
+	RADF_NODAMAGE = 8,
+};
 void	P_RadiusAttack (AActor *spot, AActor *source, int damage, int distance, 
-						FName damageType, bool hurtSelf, bool dodamage=true, int fulldamagedistance=0, bool noimpactdamage=false);
+						FName damageType, int flags, int fulldamagedistance=0);
 
 void	P_DelSector_List();
 void	P_DelSeclist(msecnode_t *);							// phares 3/16/98
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 0bf6e645fb..830c7b9d81 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4442,7 +4442,7 @@ CUSTOM_CVAR (Float, splashfactor, 1.f, CVAR_SERVERINFO)
 //==========================================================================
 
 void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int bombdistance, FName bombmod,
-	bool DamageSource, bool bombdodamage, int fulldamagedistance, bool noimpactdamage)
+	int flags, int fulldamagedistance)
 {
 	if (bombdistance <= 0)
 		return;
@@ -4456,6 +4456,11 @@ void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int b
 	FBlockThingsIterator it(FBoundingBox(bombspot->x, bombspot->y, bombdistance<<FRACBITS));
 	AActor *thing;
 
+	if (flags & RADF_SOURCEISSPOT)
+	{ // The source is actually the same as the spot, even if that wasn't what we receized.
+		bombsource = bombspot;
+	}
+
 	while ((thing = it.Next()))
 	{
 		// Vulnerable actors can be damaged by radius attacks even if not shootable
@@ -4468,7 +4473,7 @@ void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int b
 		if (thing->flags3 & MF3_NORADIUSDMG && !(bombspot->flags4 & MF4_FORCERADIUSDMG))
 			continue;
 
-		if (!DamageSource && (thing == bombsource || thing == bombspot))
+		if (!(flags & RADF_HURTSOURCE) && (thing == bombsource || thing == bombspot))
 		{ // don't damage the source of the explosion
 			continue;
 		}
@@ -4488,7 +4493,7 @@ void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int b
 		// them far too "active." BossBrains also use the old code
 		// because some user levels require they have a height of 16,
 		// which can make them near impossible to hit with the new code.
-		if (!bombdodamage || !((bombspot->flags5 | thing->flags5) & MF5_OLDRADIUSDMG))
+		if ((flags & RADF_NODAMAGE) || !((bombspot->flags5 | thing->flags5) & MF5_OLDRADIUSDMG))
 		{
 			// [RH] New code. The bounding box only covers the
 			// height of the thing and not the height of the map.
@@ -4547,14 +4552,17 @@ void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int b
 				double thrust;
 				int damage = (int)points;
 
-				if (bombdodamage) P_DamageMobj (thing, bombspot, bombsource, damage, bombmod);
-				else if (thing->player == NULL && !noimpactdamage) thing->flags2 |= MF2_BLASTED;
+				if (!(flags & RADF_NODAMAGE))
+					P_DamageMobj (thing, bombspot, bombsource, damage, bombmod);
+				else if (thing->player == NULL && !(flags & RADF_NOIMPACTDAMAGE))
+					thing->flags2 |= MF2_BLASTED;
 
 				if (!(thing->flags & MF_ICECORPSE))
 				{
-					if (bombdodamage && !(bombspot->flags3 & MF3_BLOODLESSIMPACT)) P_TraceBleed (damage, thing, bombspot);
+					if (!(flags & RADF_NODAMAGE) && !(bombspot->flags3 & MF3_BLOODLESSIMPACT))
+						P_TraceBleed (damage, thing, bombspot);
 
-					if (!bombdodamage || !(bombspot->flags2 & MF2_NODMGTHRUST))
+					if (!(flags & RADF_NODAMAGE) || !(bombspot->flags2 & MF2_NODMGTHRUST))
 					{
 						if (bombsource == NULL || !(bombsource->flags2 & MF2_NODMGTHRUST))
 						{
@@ -4575,7 +4583,7 @@ void P_RadiusAttack (AActor *bombspot, AActor *bombsource, int bombdamage, int b
 							angle_t ang = R_PointToAngle2 (bombspot->x, bombspot->y, thing->x, thing->y) >> ANGLETOFINESHIFT;
 							thing->velx += fixed_t (finecosine[ang] * thrust);
 							thing->vely += fixed_t (finesine[ang] * thrust);
-							if (bombdodamage)
+							if (!(flags & RADF_NODAMAGE))
 								thing->velz += (fixed_t)velz;	// this really doesn't work well
 						}
 					}
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index 372622ccf4..8fe1b24caa 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -727,12 +727,18 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfArmorType)
 //
 //==========================================================================
 
+enum
+{
+	XF_HURTSOURCE = 1,
+	XF_NOTMISSILE = 4,
+};
+
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 {
 	ACTION_PARAM_START(8);
 	ACTION_PARAM_INT(damage, 0);
 	ACTION_PARAM_INT(distance, 1);
-	ACTION_PARAM_BOOL(hurtSource, 2);
+	ACTION_PARAM_INT(flags, 2);
 	ACTION_PARAM_BOOL(alert, 3);
 	ACTION_PARAM_INT(fulldmgdistance, 4);
 	ACTION_PARAM_INT(nails, 5);
@@ -743,7 +749,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 	{
 		damage = self->GetClass()->Meta.GetMetaInt (ACMETA_ExplosionDamage, 128);
 		distance = self->GetClass()->Meta.GetMetaInt (ACMETA_ExplosionRadius, damage);
-		hurtSource = !self->GetClass()->Meta.GetMetaInt (ACMETA_DontHurtShooter);
+		flags = !self->GetClass()->Meta.GetMetaInt (ACMETA_DontHurtShooter);
 		alert = false;
 	}
 	else
@@ -766,7 +772,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 		}
 	}
 
-	P_RadiusAttack (self, self->target, damage, distance, self->DamageType, hurtSource, true, fulldmgdistance);
+	P_RadiusAttack (self, self->target, damage, distance, self->DamageType, flags, fulldmgdistance);
 	P_CheckSplash(self, distance<<FRACBITS);
 	if (alert && self->target != NULL && self->target->player != NULL)
 	{
@@ -775,43 +781,41 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 	}
 }
 
-enum
-{
-	RTF_AFFECTSOURCE = 1,
-	RTF_NOIMPACTDAMAGE = 2,
-};
-
 //==========================================================================
 //
 // A_RadiusThrust
 //
 //==========================================================================
 
+enum
+{
+	RTF_AFFECTSOURCE = 1,
+	RTF_NOIMPACTDAMAGE = 2,
+	RTF_NOTMISSILE = 4,
+};
+
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_RadiusThrust)
 {
 	ACTION_PARAM_START(3);
 	ACTION_PARAM_INT(force, 0);
 	ACTION_PARAM_INT(distance, 1);
-	ACTION_PARAM_INT(thrustFlags, 2);
+	ACTION_PARAM_INT(flags, 2);
 	ACTION_PARAM_INT(fullthrustdistance, 3);
 
-	bool affectSource = !!(thrustFlags & RTF_AFFECTSOURCE);
-	bool noimpactdamage = !!(thrustFlags & RTF_NOIMPACTDAMAGE);
-
 	bool sourcenothrust = false;
 
 	if (force <= 0) force = 128;
 	if (distance <= 0) distance = force;
 
 	// Temporarily negate MF2_NODMGTHRUST on the shooter, since it renders this function useless.
-	if (self->target != NULL && self->target->flags2 & MF2_NODMGTHRUST)
+	if (!(flags & RTF_NOTMISSILE) && self->target != NULL && self->target->flags2 & MF2_NODMGTHRUST)
 	{
 		sourcenothrust = true;
 		self->target->flags2 &= ~MF2_NODMGTHRUST;
 	}
 	int sourceflags2 = self->target != NULL ? self->target->flags2 : 0;
 
-	P_RadiusAttack (self, self->target, force, distance, self->DamageType, affectSource, false, fullthrustdistance, noimpactdamage);
+	P_RadiusAttack (self, self->target, force, distance, self->DamageType, flags | RADF_NODAMAGE, fullthrustdistance);
 	P_CheckSplash(self, distance << FRACBITS);
 
 	if (sourcenothrust)
diff --git a/wadsrc/static/actors/actor.txt b/wadsrc/static/actors/actor.txt
index 6e40b6628d..6bad67ceb7 100644
--- a/wadsrc/static/actors/actor.txt
+++ b/wadsrc/static/actors/actor.txt
@@ -253,8 +253,8 @@ ACTOR Actor native //: Thinker
 	action native A_CustomComboAttack(class<Actor> missiletype, float spawnheight, int damage, sound meleesound = "", name damagetype = "none", bool bleed = true);
 	action native A_Burst(class<Actor> chunktype);
 	action native A_Blast(int flags = 0, int strength = 255, int radius = 255, float speed = 20, class<Actor> blasteffect = "BlastEffect", sound blastsound = "BlastRadius");
-	action native A_RadiusThrust(int force = 128, int distance = -1, bool affectsource = true, int fullthrustdistance = 0);
-	action native A_Explode(int damage = -1, int distance = -1, bool hurtsource = true, bool alert = false, int fulldamagedistance = 0, int nails = 0, int naildamage = 10, class<Actor> pufftype = "BulletPuff");
+	action native A_RadiusThrust(int force = 128, int distance = -1, int flags = RTF_AFFECTSOURCE, int fullthrustdistance = 0);
+	action native A_Explode(int damage = -1, int distance = -1, int flags = XF_HURTSOURCE, bool alert = false, int fulldamagedistance = 0, int nails = 0, int naildamage = 10, class<Actor> pufftype = "BulletPuff");
 	action native A_Stop();
 	action native A_Respawn(int flags = 1);
 	action native A_BarrelDestroy();
diff --git a/wadsrc/static/actors/constants.txt b/wadsrc/static/actors/constants.txt
index 3551cc9b13..7616643081 100644
--- a/wadsrc/static/actors/constants.txt
+++ b/wadsrc/static/actors/constants.txt
@@ -124,9 +124,14 @@ const int MSF_Standard = 0;
 const int MSF_Classic = 1;
 const int MSF_DontHurt = 2;
 
+// Flags for A_Explode
+const int XF_HURTSOURCE = 1;
+const int XF_NOTMISSILE = 4;
+
 // Flags for A_RadiusThrust
 const int RTF_AFFECTSOURCE = 1;
 const int RTF_NOIMPACTDAMAGE = 2;
+const int RTF_NOTMISSILE = 4;
 
 // Flags for A_Blast
 const int BF_USEAMMO = 1;