diff --git a/source/core/rendering/scene/hw_walls.cpp b/source/core/rendering/scene/hw_walls.cpp
index 40e1c2b6f..4d3a0ae86 100644
--- a/source/core/rendering/scene/hw_walls.cpp
+++ b/source/core/rendering/scene/hw_walls.cpp
@@ -62,7 +62,7 @@ static walltype* IsOnWall(tspritetype* tspr, int height, DVector2& outpos)
 	{
 		// Intentionally include two sided walls. Even on them the sprite should be projected onto the wall for better results.
 		auto d = wal.delta();
-		auto deltaang = absangle(VecToAngle(d), tspr->angle);
+		auto deltaang = absangle(d.Angle(), tspr->angle);
 		const DAngle maxangdelta = DAngle360 / 1024;
 
 		// angle of the sprite must either be the wall's normal or the negative wall's normal to be aligned.
diff --git a/source/games/blood/src/ai.cpp b/source/games/blood/src/ai.cpp
index 376b44f84..0f3623ccc 100644
--- a/source/games/blood/src/ai.cpp
+++ b/source/games/blood/src/ai.cpp
@@ -1505,7 +1505,7 @@ void aiThinkTarget(DBloodActor* actor)
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
 
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvec));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvec.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				aiSetTarget(actor, pPlayer->actor);
@@ -1549,7 +1549,7 @@ void aiLookForTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvec));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvec.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				aiSetTarget(actor, pPlayer->actor);
diff --git a/source/games/blood/src/aibat.cpp b/source/games/blood/src/aibat.cpp
index 2f827613a..7704ff86d 100644
--- a/source/games/blood/src/aibat.cpp
+++ b/source/games/blood/src/aibat.cpp
@@ -107,7 +107,7 @@ static void batThinkTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvec));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvec.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				aiSetTarget(actor, pPlayer->actor);
@@ -136,7 +136,7 @@ static void batThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.X;
-	auto nAngle = VecToAngle(dvec);
+	auto nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -156,7 +156,7 @@ static void batThinkPonder(DBloodActor* actor)
 	if (!actor->ValidateTarget(__FUNCTION__)) return;
 	auto pTarget = actor->GetTarget();
 	auto dvec = pTarget->spr.pos.XY() - actor->spr.pos.XY();
-	aiChooseDirection(actor, VecToAngle(dvec));
+	aiChooseDirection(actor, dvec.Angle());
 	if (pTarget->xspr.health == 0)
 	{
 		aiNewState(actor, &batSearch);
@@ -165,7 +165,7 @@ static void batThinkPonder(DBloodActor* actor)
 	double nDist = dvec.Length();
 	if (nDist <= pDudeInfo->SeeDist())
 	{
-		DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvec));
+		DAngle nDeltaAngle = absangle(actor->spr.angle, dvec.Angle());
 		double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 		double height2 = (getDudeInfo(pTarget->spr.type)->eyeHeight * pTarget->spr.yrepeat) * REPEAT_SCALE;
 		double top, bottom;
@@ -245,7 +245,7 @@ static void batThinkChase(DBloodActor* actor)
 	auto pTarget = actor->GetTarget();
 	auto dvec = pTarget->spr.pos.XY() - actor->spr.pos.XY();
 
-	aiChooseDirection(actor, VecToAngle(dvec));
+	aiChooseDirection(actor, dvec.Angle());
 	if (pTarget->xspr.health == 0)
 	{
 		aiNewState(actor, &batSearch);
diff --git a/source/games/blood/src/aibeast.cpp b/source/games/blood/src/aibeast.cpp
index 2d6716d07..71da4ef30 100644
--- a/source/games/blood/src/aibeast.cpp
+++ b/source/games/blood/src/aibeast.cpp
@@ -176,7 +176,7 @@ static void beastThinkGoto(DBloodActor* actor)
 	auto pXSector = pSector->hasX() ? &pSector->xs() : nullptr;
 
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	auto nAngle = VecToAngle(dvec);
+	auto nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -208,7 +208,7 @@ static void beastThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dv = target->spr.pos.XY() - actor->spr.pos.XY();
-	aiChooseDirection(actor, VecToAngle(dv));
+	aiChooseDirection(actor, dv.Angle());
 
 	auto pSector = actor->sector();
 	auto pXSector = pSector->hasX() ? &pSector->xs() : nullptr;
@@ -232,7 +232,7 @@ static void beastThinkChase(DBloodActor* actor)
 	double nDist = dv.Length();
 	if (nDist <= pDudeInfo->SeeDist())
 	{
-		DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dv));
+		DAngle nDeltaAngle = absangle(actor->spr.angle, dv.Angle());
 		double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 		if (cansee(target->spr.pos, target->sector(), actor->spr.pos.plusZ(-height), actor->sector()))
 		{
@@ -325,7 +325,7 @@ static void beastThinkSwimGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	auto nAngle = VecToAngle(dvec);
+	auto nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -346,7 +346,7 @@ static void beastThinkSwimChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 
 	aiChooseDirection(actor, nAngle);
diff --git a/source/games/blood/src/aiboneel.cpp b/source/games/blood/src/aiboneel.cpp
index 887b73687..2364bcf25 100644
--- a/source/games/blood/src/aiboneel.cpp
+++ b/source/games/blood/src/aiboneel.cpp
@@ -118,7 +118,7 @@ static void eelThinkTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvect));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvect.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				pDudeExtraE->thinkTime = 0;
@@ -149,7 +149,7 @@ static void eelThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	auto nAngle = VecToAngle(dvec);
+	auto nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -169,7 +169,7 @@ static void eelThinkPonder(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
@@ -259,7 +259,7 @@ static void eelThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aiburn.cpp b/source/games/blood/src/aiburn.cpp
index e55e673a6..fa524c8f8 100644
--- a/source/games/blood/src/aiburn.cpp
+++ b/source/games/blood/src/aiburn.cpp
@@ -85,7 +85,7 @@ static void burnThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -157,7 +157,7 @@ static void burnThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 
 	aiChooseDirection(actor, nAngle);
diff --git a/source/games/blood/src/aicaleb.cpp b/source/games/blood/src/aicaleb.cpp
index ca7e1bb7d..2731feda8 100644
--- a/source/games/blood/src/aicaleb.cpp
+++ b/source/games/blood/src/aicaleb.cpp
@@ -94,7 +94,7 @@ static void calebThinkGoto(DBloodActor* actor)
 	auto pXSector = pSector->hasX() ? &pSector->xs() : nullptr;
 
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -125,7 +125,7 @@ static void calebThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 
@@ -213,7 +213,7 @@ static void calebThinkSwimGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -233,7 +233,7 @@ static void calebThinkSwimChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 
diff --git a/source/games/blood/src/aicerber.cpp b/source/games/blood/src/aicerber.cpp
index 7938674f7..a16792b8a 100644
--- a/source/games/blood/src/aicerber.cpp
+++ b/source/games/blood/src/aicerber.cpp
@@ -249,7 +249,7 @@ static void cerberusThinkTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvect));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvect.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				pDudeExtraE->thinkTime = 0;
@@ -277,7 +277,7 @@ static void cerberusThinkGoto(DBloodActor* actor)
 	}
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -320,7 +320,7 @@ static void cerberusThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 
diff --git a/source/games/blood/src/aicult.cpp b/source/games/blood/src/aicult.cpp
index 26a3555d5..ac4107b33 100644
--- a/source/games/blood/src/aicult.cpp
+++ b/source/games/blood/src/aicult.cpp
@@ -185,7 +185,7 @@ static void cultThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 320 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -226,7 +226,7 @@ static void cultThinkChase(DBloodActor* actor)
 
 	auto dvec = target->spr.pos - actor->spr.pos;
 	double nDist = dvec.XY().Length();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	aiChooseDirection(actor, nAngle);
 
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aigarg.cpp b/source/games/blood/src/aigarg.cpp
index fecf70bdb..349d55038 100644
--- a/source/games/blood/src/aigarg.cpp
+++ b/source/games/blood/src/aigarg.cpp
@@ -205,7 +205,7 @@ static void gargThinkTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvect));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvect.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				pDudeExtraE->thinkTime = 0;
@@ -239,7 +239,7 @@ static void gargThinkGoto(DBloodActor* actor)
 	}
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
diff --git a/source/games/blood/src/aighost.cpp b/source/games/blood/src/aighost.cpp
index 62a81c646..bfc514c24 100644
--- a/source/games/blood/src/aighost.cpp
+++ b/source/games/blood/src/aighost.cpp
@@ -186,7 +186,7 @@ static void ghostThinkTarget(DBloodActor* actor)
 			double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 			if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 				continue;
-			DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvect));
+			DAngle nDeltaAngle = absangle(actor->spr.angle, dvect.Angle());
 			if (nDist < pDudeInfo->SeeDist() && nDeltaAngle <= pDudeInfo->Periphery())
 			{
 				pDudeExtraE->thinkTime = 0;
@@ -219,7 +219,7 @@ static void ghostThinkGoto(DBloodActor* actor)
 	}
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
diff --git a/source/games/blood/src/aigilbst.cpp b/source/games/blood/src/aigilbst.cpp
index 07b87634b..7030f2ce8 100644
--- a/source/games/blood/src/aigilbst.cpp
+++ b/source/games/blood/src/aigilbst.cpp
@@ -84,7 +84,7 @@ static void gillThinkGoto(DBloodActor* actor)
 	auto pXSector = pSector->hasX() ? &pSector->xs() : nullptr;
 
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -115,7 +115,7 @@ static void gillThinkChase(DBloodActor* actor)
 	if (!actor->ValidateTarget(__FUNCTION__)) return;
 	auto target = actor->GetTarget();
 	auto dv = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dv);
+	DAngle nAngle = dv.Angle();
 	aiChooseDirection(actor, nAngle);
 	if (actor->xspr.health == 0)
 	{
@@ -197,7 +197,7 @@ static void gillThinkSwimGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -217,7 +217,7 @@ static void gillThinkSwimChase(DBloodActor* actor)
 	if (!actor->ValidateTarget(__FUNCTION__)) return;
 	auto target = actor->GetTarget();
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	
diff --git a/source/games/blood/src/aihand.cpp b/source/games/blood/src/aihand.cpp
index 07dda7476..0adfc4db7 100644
--- a/source/games/blood/src/aihand.cpp
+++ b/source/games/blood/src/aihand.cpp
@@ -67,7 +67,7 @@ static void handThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -88,7 +88,7 @@ static void handThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aihound.cpp b/source/games/blood/src/aihound.cpp
index e9fb32521..1dc3897e3 100644
--- a/source/games/blood/src/aihound.cpp
+++ b/source/games/blood/src/aihound.cpp
@@ -76,7 +76,7 @@ static void houndThinkGoto(DBloodActor* actor)
 
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -99,7 +99,7 @@ static void houndThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aiinnoc.cpp b/source/games/blood/src/aiinnoc.cpp
index 03730b64b..21a96bb6b 100644
--- a/source/games/blood/src/aiinnoc.cpp
+++ b/source/games/blood/src/aiinnoc.cpp
@@ -51,7 +51,7 @@ static void innocThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -72,7 +72,7 @@ static void innocThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aipod.cpp b/source/games/blood/src/aipod.cpp
index 551c0d175..62f99b19b 100644
--- a/source/games/blood/src/aipod.cpp
+++ b/source/games/blood/src/aipod.cpp
@@ -137,7 +137,7 @@ static void aiPodMove(DBloodActor* actor)
 
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -179,7 +179,7 @@ static void aiPodChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0) {
diff --git a/source/games/blood/src/airat.cpp b/source/games/blood/src/airat.cpp
index dc38cf2d9..07ff65f27 100644
--- a/source/games/blood/src/airat.cpp
+++ b/source/games/blood/src/airat.cpp
@@ -64,7 +64,7 @@ static void ratThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -84,7 +84,7 @@ static void ratThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aispid.cpp b/source/games/blood/src/aispid.cpp
index a537c4def..e81a7c2eb 100644
--- a/source/games/blood/src/aispid.cpp
+++ b/source/games/blood/src/aispid.cpp
@@ -137,7 +137,7 @@ void SpidBirthSeqCallback(int, DBloodActor* actor)
 	auto target = actor->GetTarget();
 	DUDEEXTRA_STATS* pDudeExtraE = &actor->dudeExtra.stats;
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 
 	DBloodActor* spawned = nullptr;
@@ -172,7 +172,7 @@ static void spidThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -192,7 +192,7 @@ static void spidThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aitchern.cpp b/source/games/blood/src/aitchern.cpp
index cd8805b68..fb0dbb11a 100644
--- a/source/games/blood/src/aitchern.cpp
+++ b/source/games/blood/src/aitchern.cpp
@@ -204,7 +204,7 @@ static void sub_725A4(DBloodActor* actor)
 			auto ppos = pPlayer->actor->spr.pos;
 			auto dvect = ppos.XY() - actor->spr.pos;
 			auto pSector = pPlayer->actor->sector();
-			DAngle nAngle = VecToAngle(dvect);
+			DAngle nAngle = dvect.Angle();
 			double nDist = dvect.Length();
 
 			if (nDist > pDudeInfo->SeeDist() && nDist > pDudeInfo->HearDist())
@@ -240,7 +240,7 @@ static void sub_72850(DBloodActor* actor)
 	}
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -264,7 +264,7 @@ static void tchernobogThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
diff --git a/source/games/blood/src/aiunicult.cpp b/source/games/blood/src/aiunicult.cpp
index d5f636934..6c7f5d31b 100644
--- a/source/games/blood/src/aiunicult.cpp
+++ b/source/games/blood/src/aiunicult.cpp
@@ -419,7 +419,7 @@ static void unicultThinkGoto(DBloodActor* actor)
 	}
 
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 
@@ -480,7 +480,7 @@ static void unicultThinkChase(DBloodActor* actor)
 	// check target
 	auto dv = target->spr.pos.XY() - actor->spr.pos.XY();
 	double dist = max(dv.Length(), 1 / 256.);
-	DAngle nAngle = VecToAngle(dv);
+	DAngle nAngle = dv.Angle();
 
 	// quick hack to prevent spinning around or changing attacker's sprite angle on high movement speeds
 	// when attacking the target. It happens because vanilla function takes in account x and y velocity, 
diff --git a/source/games/blood/src/aizomba.cpp b/source/games/blood/src/aizomba.cpp
index a4aff2bae..56529a2e0 100644
--- a/source/games/blood/src/aizomba.cpp
+++ b/source/games/blood/src/aizomba.cpp
@@ -91,7 +91,7 @@ static void zombaThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 51.3125 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -112,7 +112,7 @@ static void zombaThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 
@@ -164,7 +164,7 @@ static void zombaThinkPonder(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dvec = target->spr.pos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
@@ -222,7 +222,7 @@ static void myThinkTarget(DBloodActor* actor)
 		double height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) * REPEAT_SCALE;
 		if (!cansee(ppos, pSector, actor->spr.pos.plusZ(-height), actor->sector()))
 			continue;
-		DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dvect));
+		DAngle nDeltaAngle = absangle(actor->spr.angle, dvect.Angle());
 		if (nDist < pDudeInfo->SeeDist() && abs(nDeltaAngle) <= pDudeInfo->Periphery())
 		{
 			aiSetTarget(actor, pPlayer->actor);
diff --git a/source/games/blood/src/aizombf.cpp b/source/games/blood/src/aizombf.cpp
index 0b3f83eed..078266d8b 100644
--- a/source/games/blood/src/aizombf.cpp
+++ b/source/games/blood/src/aizombf.cpp
@@ -91,7 +91,7 @@ static void zombfThinkGoto(DBloodActor* actor)
 	assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
 	DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
 	auto dvec = actor->xspr.TargetPos.XY() - actor->spr.pos.XY();
-	DAngle nAngle = VecToAngle(dvec);
+	DAngle nAngle = dvec.Angle();
 	double nDist = dvec.Length();
 	aiChooseDirection(actor, nAngle);
 	if (nDist < 32 && absangle(actor->spr.angle, nAngle) < pDudeInfo->Periphery())
@@ -112,7 +112,7 @@ static void zombfThinkChase(DBloodActor* actor)
 	auto target = actor->GetTarget();
 
 	auto dv = target->spr.pos - actor->spr.pos;
-	auto nAngle = VecToAngle(dv);
+	auto nAngle = dv.Angle();
 	aiChooseDirection(actor, nAngle);
 	if (target->xspr.health == 0)
 	{
diff --git a/source/games/blood/src/nnexts.cpp b/source/games/blood/src/nnexts.cpp
index 672cf1bec..33f6ea2b6 100644
--- a/source/games/blood/src/nnexts.cpp
+++ b/source/games/blood/src/nnexts.cpp
@@ -3261,7 +3261,7 @@ void useTeleportTarget(DBloodActor* sourceactor, DBloodActor* actor)
 		if (sourceactor->xspr.data3 & kModernTypeFlag2)
 		{
 			auto velv = actor->vel.XY();
-			auto pt = rotatepoint(actor->spr.pos.XY(), velv, sourceactor->spr.angle - VecToAngle(velv));
+			auto pt = rotatepoint(actor->spr.pos.XY(), velv, sourceactor->spr.angle - velv.Angle());
 			actor->vel.XY() = pt;
 
 		}
@@ -4448,7 +4448,7 @@ bool condCheckDude(DBloodActor* aCond, int cmpOp, bool PUSH)
 			var = cansee(objActor->spr.pos, objActor->sector(), targ->spr.pos.plusZ(-height), targ->sector());
 			if (cond == 4 && var > 0)
 			{
-				DAngle absang = absangle(VecToAngle(delta), objActor->spr.angle);
+				DAngle absang = absangle(delta.Angle(), objActor->spr.angle);
 				var = absang < (arg1 <= 0 ? pInfo->Periphery() : min(mapangle(arg1), DAngle360));
 			}
 			break;
@@ -8366,7 +8366,7 @@ bool readyForCrit(DBloodActor* hunter, DBloodActor* victim)
 	if (dvect.Length() >= (437.5 / max(gGameOptions.nDifficulty >> 1, 1)))
 		return false;
 
-	return absangle(victim->spr.angle, VecToAngle(dvect)) <= DAngle45;
+	return absangle(victim->spr.angle, dvect.Angle()) <= DAngle45;
 }
 
 //---------------------------------------------------------------------------
@@ -8560,7 +8560,7 @@ DBloodActor* aiPatrolSearchTargets(DBloodActor* actor)
 			if (seeDistf)
 			{
 				DAngle periphery = max(pDudeInfo->Periphery(), DAngle60);
-				DAngle nDeltaAngle = absangle(actor->spr.angle, VecToAngle(dv));
+				DAngle nDeltaAngle = absangle(actor->spr.angle, dv.Angle());
 				if ((itCanSee = (!blind && nDistf < seeDistf && nDeltaAngle < periphery)) == true)
 				{
 					int base = 100 + ((20 * gGameOptions.nDifficulty) - (nDeltaAngle.Buildang() / 5));
diff --git a/source/games/blood/src/weapon.cpp b/source/games/blood/src/weapon.cpp
index f23120b70..ea667fb36 100644
--- a/source/games/blood/src/weapon.cpp
+++ b/source/games/blood/src/weapon.cpp
@@ -527,7 +527,7 @@ void UpdateAimVector(PLAYER* pPlayer)
 				if (lpos.Z - zRange > bottom || lpos.Z + zRange < top)
 					continue;
 
-				DAngle angle = VecToAngle(dv);
+				DAngle angle = dv.Angle();
 				DAngle deltaangle = absangle(angle, plActor->spr.angle);
 				if (deltaangle > DAngle::fromBuild(pWeaponTrack->thingAngle))
 					continue;
diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index 3507685b8..bb97cd7d7 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -1285,7 +1285,7 @@ void bounce(DDukeActor* actor)
 
 	actor->vel.Z = vect.Z;
 	actor->vel.X = vect.XY().Length();
-	actor->spr.angle = VecToAngle(vect);
+	actor->spr.angle = vect.Angle();
 }
 
 //---------------------------------------------------------------------------
diff --git a/source/games/exhumed/src/move.cpp b/source/games/exhumed/src/move.cpp
index 518505d65..fcdf1751a 100644
--- a/source/games/exhumed/src/move.cpp
+++ b/source/games/exhumed/src/move.cpp
@@ -604,7 +604,7 @@ double PlotCourseToSprite(DExhumedActor* pActor1, DExhumedActor* pActor2)
         return -1;
 	
 	auto vect = pActor2->spr.pos.XY() - pActor1->spr.pos.XY();
-	pActor1->spr.angle = VecToAngle(vect);
+	pActor1->spr.angle = vect.Angle();
 	return vect.Length();
 
 }
@@ -769,7 +769,7 @@ void MoveSector(sectortype* pSector, DAngle nAngle, DVector2& nVel)
     if (nAngle < nullAngle)
     {
         nVect = nVel;
-        nAngle = VecToAngle(nVect);
+        nAngle = nVect.Angle();
     }
     else
     {
@@ -1002,7 +1002,7 @@ Collision AngleChase(DExhumedActor* pActor, DExhumedActor* pActor2, int threshol
     {
         double nHeight = GetActorHeight(pActor2) / 2;
 		auto vect = pActor2->spr.pos.XY() - pActor->spr.pos.XY();
-        DAngle nMyAngle = VecToAngle(vect);
+        DAngle nMyAngle = vect.Angle();
         double nSqrt = vect.Length();
         DAngle nPitch = VecToAngle(nSqrt, (pActor2->spr.pos.Z - nHeight - pActor->spr.pos.Z) / 16.);
 
diff --git a/source/games/exhumed/src/player.cpp b/source/games/exhumed/src/player.cpp
index 5b6250805..aad34d81a 100644
--- a/source/games/exhumed/src/player.cpp
+++ b/source/games/exhumed/src/player.cpp
@@ -857,7 +857,7 @@ bool CheckMovingBlocks(int nPlayer, Collision& nMove, DVector3& spr_pos, sectort
                     PlayerList[nPlayer].pPlayerPushSect = sect;
 
                     DVector2 vel = sPlayerInput[nPlayer].vel;
-                    auto nMyAngle = VecToAngle(vel).Normalized360();
+                    auto nMyAngle = vel.Angle().Normalized360();
 
                     setsectinterpolate(sect);
                     MoveSector(sect, nMyAngle, vel);
diff --git a/source/games/exhumed/src/queen.cpp b/source/games/exhumed/src/queen.cpp
index 20add8ca2..84484ea05 100644
--- a/source/games/exhumed/src/queen.cpp
+++ b/source/games/exhumed/src/queen.cpp
@@ -334,7 +334,7 @@ Collision QueenAngleChase(DExhumedActor* pActor, DExhumedActor* pActor2, int thr
         double edx = ((pActor2->spr.pos.Z - nTileY) - pActor->spr.pos.Z);
         double nSqrt = vect.Length();
 
-        DAngle nMyAngle = VecToAngle(vect);
+        DAngle nMyAngle = vect.Angle();
         DAngle nPitch = VecToAngle(nSqrt * 16, edx);
         DAngle nAngDelta = deltaangle(pActor->spr.angle, nMyAngle);
 
diff --git a/source/games/exhumed/src/runlist.cpp b/source/games/exhumed/src/runlist.cpp
index 011f2d641..ef3ae6cf6 100644
--- a/source/games/exhumed/src/runlist.cpp
+++ b/source/games/exhumed/src/runlist.cpp
@@ -1783,7 +1783,7 @@ int runlist_CheckRadialDamage(DExhumedActor* pActor)
             }
             else if (edi > 20)
             {
-                auto nAngle = VecToAngle(pos);
+                auto nAngle = pos.Angle();
 				pActor->vel.XY() += nAngle.ToVector() * edi * 128;
 
                 pActor->vel.Z = (- edi * 24) / 256.;
diff --git a/source/games/sw/src/ripper.cpp b/source/games/sw/src/ripper.cpp
index 223e7b33a..520f83e1d 100644
--- a/source/games/sw/src/ripper.cpp
+++ b/source/games/sw/src/ripper.cpp
@@ -1079,7 +1079,7 @@ int DoRipperBeginJumpAttack(DSWActor* actor)
     if (coll.type != kHitNone)
 		actor->spr.angle += RandomAngle(DAngle45) + DAngle180 - DAngle22_5;
     else
-		actor->spr.angle = VecToAngle(vec) + RandomAngle(DAngle45) - DAngle22_5;
+		actor->spr.angle = vec.Angle() + RandomAngle(DAngle45) - DAngle22_5;
 
     DoActorSetSpeed(actor, FAST_SPEED);
 
diff --git a/source/games/sw/src/ripper2.cpp b/source/games/sw/src/ripper2.cpp
index ed0867854..af5312bb1 100644
--- a/source/games/sw/src/ripper2.cpp
+++ b/source/games/sw/src/ripper2.cpp
@@ -1086,7 +1086,7 @@ int DoRipper2BeginJumpAttack(DSWActor* actor)
 	if (coll.type != kHitNone)
 		actor->spr.angle += RandomAngle(DAngle45) + DAngle180 - DAngle22_5;
 	else
-		actor->spr.angle = VecToAngle(vec);
+		actor->spr.angle = vec.Angle();
 
     DoActorSetSpeed(actor, FAST_SPEED);
 
diff --git a/source/games/sw/src/rooms.cpp b/source/games/sw/src/rooms.cpp
index 1aeccb7d1..c4970cdbc 100644
--- a/source/games/sw/src/rooms.cpp
+++ b/source/games/sw/src/rooms.cpp
@@ -275,7 +275,7 @@ bool FAFcansee(const DVector3& start, sectortype* sects, const DVector3& end, se
 
     // get angle
     DVector3 diff = end - start;
-    DAngle ang = VecToAngle(diff);
+    DAngle ang = diff.Angle();
     DVector3 vect; 
     vect.XY() = ang.ToVector() * 1024;
     double dist = diff.XY().Length();
diff --git a/source/games/sw/src/weapon.cpp b/source/games/sw/src/weapon.cpp
index 27af21171..2d7c4a1b9 100644
--- a/source/games/sw/src/weapon.cpp
+++ b/source/games/sw/src/weapon.cpp
@@ -12839,7 +12839,7 @@ int WeaponAutoAim(DSWActor* actor, DSWActor* mislActor, DAngle ang, bool test)
         hitActor->user.Flags |= (SPR_ATTACKED);
 
         auto delta = hitActor->spr.pos.XY() - mislActor->spr.pos.XY();
-        mislActor->spr.angle = VecToAngle(delta);
+        mislActor->spr.angle = delta.Angle();
         double dist = delta.Length();
 
         if (dist != 0)
@@ -12935,7 +12935,7 @@ DSWActor* AimHitscanToTarget(DSWActor* actor, double *z, DAngle *ang, double z_r
     hitActor->user.Flags |= (SPR_ATTACKED);
 
     auto delta = hitActor->spr.pos.XY() - actor->spr.pos.XY();
-    *ang = VecToAngle(delta);
+    *ang = delta.Angle();
 
     // find the distance to the target
     double dist = delta.Length();
@@ -13022,7 +13022,7 @@ DSWActor* WeaponAutoAimHitscan(DSWActor* actor, double *z, DAngle *ang, bool tes
 void WeaponHitscanShootFeet(DSWActor* actor, DSWActor* hitActor, double *zvect)
 {
     auto delta = hitActor->spr.pos.XY() - actor->spr.pos.XY();
-    DAngle ang = VecToAngle(delta);
+    DAngle ang = delta.Angle();
 
     // find the distance to the target
     double dist = delta.Length();