diff --git a/source/core/coreactor.h b/source/core/coreactor.h
index fd2e1745d..b44387d30 100644
--- a/source/core/coreactor.h
+++ b/source/core/coreactor.h
@@ -77,11 +77,6 @@ public:
 		return { int(spr.pos.X * worldtoint), int(spr.pos.Y * worldtoint), int(spr.pos.Z * zworldtoint) };
 	}
 
-	void set_int_z(int z)
-	{
-		spr.pos.Z = z * zinttoworld;
-	}
-
 	void add_int_z(int z)
 	{
 		spr.pos.Z += z * zinttoworld;
diff --git a/source/core/maptypes.h b/source/core/maptypes.h
index 42adf60ce..c7c51b5db 100644
--- a/source/core/maptypes.h
+++ b/source/core/maptypes.h
@@ -526,10 +526,6 @@ struct tspritetype : public spritetypebase
 	{
 		pos.Z += x * zinttoworld;
 	}
-	void set_int_z(int x)
-	{
-		pos.Z = x * zinttoworld;
-	}
 };
 
 class tspriteArray
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index e78b87296..280ce3a43 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -690,7 +690,7 @@ static void shootrpg(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int atw
 {
 	auto sect = actor->sector();
 	double vel, zvel;
-	int l, scount;
+	int scount;
 
 	if (actor->spr.extra >= 0) actor->spr.shade = -96;
 
@@ -767,23 +767,23 @@ static void shootrpg(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int atw
 	{
 		if (actor->spr.picnum == BOSS3)
 		{
-			DVector2 offset(ang.Sin() * 4, ang.Cos() * -4);
+			DVector2 spawnofs(ang.Sin() * 4, ang.Cos() * -4);
 			DAngle aoffs = DAngle22_5 / 32.;
 
 			if ((krand() & 1) != 0)
 			{
-				offset = -offset;
+				spawnofs = -spawnofs;
 				aoffs = -aoffs;
 			}
 
 			if (isWorldTour()) // Twentieth Anniversary World Tour
 			{
 				float siz = actor->spr.yrepeat / 80.0f;
-				offset *= siz;
+				spawnofs *= siz;
 				aoffs *= siz;
 			}
 
-			spawned->spr.pos += offset;
+			spawned->spr.pos += spawnofs;
 			spawned->spr.angle += aoffs;
 
 			spawned->spr.xrepeat = 42;
@@ -791,16 +791,16 @@ static void shootrpg(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int atw
 		}
 		else if (actor->spr.picnum == BOSS2)
 		{
-			DVector2 offset(ang.Sin() * (1024. / 56.), ang.Cos() * -(1024. / 56.));
+			DVector2 spawnofs(ang.Sin() * (1024. / 56.), ang.Cos() * -(1024. / 56.));
 			DAngle aoffs = DAngle22_5 / 16. - DAngle45 + randomAngle(90);
 
 			if (isWorldTour()) { // Twentieth Anniversary World Tour
 				double siz = actor->spr.yrepeat / 70.;
-				offset *= siz;
+				spawnofs *= siz;
 				aoffs *= siz;
 			}
 
-			spawned->spr.pos += offset;
+			spawned->spr.pos += spawnofs;
 			spawned->spr.angle += aoffs;
 
 			spawned->spr.xrepeat = 24;
@@ -821,13 +821,13 @@ static void shootrpg(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int atw
 
 		if (ps[p].hbomb_hold_delay)
 		{
-			DVector2 offset(-ang.Sin()* (1024. / 644.), ang.Cos() * (1024. / 644.));
-			spawned->spr.pos += offset;
+			DVector2 spawnofs(-ang.Sin()* (1024. / 644.), ang.Cos() * (1024. / 644.));
+			spawned->spr.pos += spawnofs;
 		}
 		else
 		{
-			DVector2 offset(ang.Sin()* 4, ang.Cos() * -4);
-			spawned->spr.pos += offset;
+			DVector2 spawnofs(ang.Sin()* 4, ang.Cos() * -4);
+			spawned->spr.pos += spawnofs;
 		}
 		spawned->spr.xrepeat >>= 1;
 		spawned->spr.yrepeat >>= 1;
@@ -1076,8 +1076,7 @@ static void shootshrinker(DDukeActor* actor, int p, int sx, int sy, int sz, int
 
 void shoot_d(DDukeActor* actor, int atwith)
 {
-	int l, j;
-	int sx, sy, sz, sa, p, vel, zvel, x, dal;
+	int sx, sy, sz, sa, p, zvel;
 	if (actor->isPlayer())
 	{
 		p = actor->PlayerIndex();
diff --git a/source/games/duke/src/spawn.cpp b/source/games/duke/src/spawn.cpp
index 4878c39a4..1a357f7e2 100644
--- a/source/games/duke/src/spawn.cpp
+++ b/source/games/duke/src/spawn.cpp
@@ -1068,8 +1068,8 @@ void lotsofglass(DDukeActor *actor, walltype* wal, int n)
 			z = sect->floorz - krandf(abs(sect->ceilingz - sect->floorz));
 			if (fabs(z) > 32)
 				z = actor->spr.pos.Z - 32 + krandf(64);
-			DAngle a = actor->spr.angle - DAngle180;
-			CreateActor(actor->sector(), DVector3(pos, z), TILE_GLASSPIECES + (j % 3), -32, 36, 36, a.Buildang(), 32 + (krand() & 63), -(krand() & 1023), actor, 5);
+			DAngle angl = actor->spr.angle - DAngle180;
+			CreateActor(actor->sector(), DVector3(pos, z), TILE_GLASSPIECES + (j % 3), -32, 36, 36, angl.Buildang(), 32 + (krand() & 63), -(krand() & 1023), actor, 5);
 		}
 	}
 }