diff --git a/source/build/include/build.h b/source/build/include/build.h
index 9ff83de6c..d1723f35f 100644
--- a/source/build/include/build.h
+++ b/source/build/include/build.h
@@ -454,6 +454,10 @@ inline int32_t ksqrt(uint64_t num)
 }
 
 int32_t   getangle(int32_t xvect, int32_t yvect);
+inline int32_t   getangle(const vec2_t& vec)
+{
+    return getangle(vec.x, vec.y);
+}
 
 inline constexpr uint32_t uhypsq(int32_t const dx, int32_t const dy)
 {
diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index 2a4534a2f..020449590 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -1299,8 +1299,7 @@ void bounce(DDukeActor* actor)
 
 	auto sectp = s->sector();
 
-	auto delta = sectp->firstWall()->delta();
-	int daang = getangle(delta.x, delta.y);
+	int daang = getangle(sectp->firstWall()->delta());
 
 	int k, l;
 	if (s->z < (actor->floorz + actor->ceilingz) >> 1)
@@ -1513,8 +1512,7 @@ bool queball(DDukeActor *actor, int pocket, int queball, int stripeball)
 
 		if (j == kHitWall)
 		{
-			auto delta = coll.wall()->delta();
-			int k = getangle(delta.x, delta.y);
+			int k = getangle(coll.wall()->delta());
 			s->ang = ((k << 1) - s->ang) & 2047;
 		}
 		else if (j == kHitSprite)
diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index c68db427d..a8576e842 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -1657,8 +1657,7 @@ static bool weaponhitwall(DDukeActor *proj, walltype* wal, const vec3_t &oldpos)
 		(!isWorldTour() || s->picnum != FIREBALL) &&
 		(wal->overpicnum == MIRROR || wal->picnum == MIRROR))
 	{
-		auto delta = wal->delta();
-		int k = getangle(delta.x, delta.y);
+		int k = getangle(wal->delta());
 		s->ang = ((k << 1) - s->ang) & 2047;
 		proj->SetOwner(proj);
 		spawn(proj, TRANSPORTERSTAR);
@@ -1677,8 +1676,7 @@ static bool weaponhitwall(DDukeActor *proj, walltype* wal, const vec3_t &oldpos)
 				s->yvel--;
 			}
 
-			auto delta = wal->delta();
-			int k = getangle(delta.x, delta.y);
+			int k = getangle(wal->delta());
 			s->ang = ((k << 1) - s->ang) & 2047;
 			return true;
 		}
@@ -2917,8 +2915,7 @@ static void heavyhbomb(DDukeActor *actor)
 		auto wal = coll.wall();
 		fi.checkhitwall(actor, wal, s->x, s->y, s->z, s->picnum);
 
-		auto delta = wal->delta();
-		int k = getangle(delta.x, delta.y);
+		int k = getangle(wal->delta());
 
 		s->ang = ((k << 1) - s->ang) & 2047;
 		s->xvel >>= 1;
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index e9c09ac2d..c3d7e088f 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -1215,8 +1215,7 @@ static bool weaponhitwall(DDukeActor *proj, walltype* wal, const vec3_t& oldpos)
 
 	if (s->picnum != RPG && (!isRRRA() || s->picnum != RPG2) && s->picnum != FREEZEBLAST && s->picnum != SPIT && s->picnum != SHRINKSPARK && (wal->overpicnum == MIRROR || wal->picnum == MIRROR))
 	{
-		auto delta = wal->delta();
-		int k = getangle(delta.x, delta.y);
+		int k = getangle(wal->delta());
 		s->ang = ((k << 1) - s->ang) & 2047;
 		proj->SetOwner(proj);
 		spawn(proj, TRANSPORTERSTAR);
@@ -1239,8 +1238,7 @@ static bool weaponhitwall(DDukeActor *proj, walltype* wal, const vec3_t& oldpos)
 				s->yvel--;
 			}
 
-			auto delta = wal->delta();
-			int k = getangle(delta.x, delta.y);
+			int k = getangle(wal->delta());
 			s->ang = ((k << 1) - s->ang) & 2047;
 			return true;
 		}
@@ -1276,8 +1274,7 @@ static bool weaponhitwall(DDukeActor *proj, walltype* wal, const vec3_t& oldpos)
 				s->yvel--;
 			}
 
-			auto delta = wal->delta();
-			int k = getangle(delta.x, delta.y);
+			int k = getangle(wal->delta());
 			s->ang = ((k << 1) - s->ang) & 2047;
 			return true;
 		}
@@ -2625,8 +2622,7 @@ static void heavyhbomb(DDukeActor *actor)
 		auto wal = coll.wall();
 		fi.checkhitwall(actor, wal, s->x, s->y, s->z, s->picnum);
 
-		auto delta = wal->delta();
-		int k = getangle(delta.x, delta.y);
+		int k = getangle(wal->delta());
 
 		if (s->picnum == CHEERBOMB)
 		{
@@ -2768,9 +2764,7 @@ static int henstand(DDukeActor *actor)
 		{
 			if (coll.type == kHitWall)
 			{
-				auto wal = coll.wall();
-				auto delta = wal->delta();
-				int k = getangle(delta.x, delta.y);
+				int k = getangle(coll.wall()->delta());
 				s->ang = ((k << 1) - s->ang) & 2047;
 			}
 			else if (coll.type == kHitSprite)
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 1427ce44a..a83a0e84c 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -2388,8 +2388,7 @@ void onMotorcycleMove(int snum, walltype* wal)
 	auto p = &ps[snum];
 	auto pact = p->GetActor();
 	auto s = pact->s;
-	auto delta = wal->delta();
-	int angleDelta = abs(p->angle.ang.asbuild() - getangle(delta.x, delta.y));
+	int angleDelta = abs(p->angle.ang.asbuild() - getangle(wal->delta()));
 	int damageAmount;
 
 	p->angle.addadjustment(p->MotoSpeed / (krand() & 1 ? -2 : 2));
@@ -2444,7 +2443,7 @@ void onBoatMove(int snum, int psectlotag, walltype* wal)
 	auto p = &ps[snum];
 	auto pact = p->GetActor();
 	auto delta = wal->delta();
-	int angleDelta = abs(p->angle.ang.asbuild() - getangle(delta.x, delta.y));
+	int angleDelta = abs(p->angle.ang.asbuild() - getangle(wal->delta()));
 
 	p->angle.addadjustment(p->MotoSpeed / (krand() & 1 ? -4 : 4));