From 782fb08209712d7fb16a962adf92542e73d8293e Mon Sep 17 00:00:00 2001
From: Mitchell Richters <mjr4077au@gmail.com>
Date: Sat, 27 Aug 2022 22:00:58 +1000
Subject: [PATCH] - SW: Make better use of some TAngle backend utilities.

---
 source/games/sw/src/draw.cpp   | 2 +-
 source/games/sw/src/player.cpp | 2 +-
 source/games/sw/src/track.cpp  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/source/games/sw/src/draw.cpp b/source/games/sw/src/draw.cpp
index d4da336fa..1b1302784 100644
--- a/source/games/sw/src/draw.cpp
+++ b/source/games/sw/src/draw.cpp
@@ -1101,7 +1101,7 @@ void CameraView(PLAYER* pp, int *tx, int *ty, int *tz, sectortype** tsect, DAngl
         while (auto actor = it.Next())
         {
             ang = VecToAngle(*tx - actor->int_pos().X, *ty - actor->int_pos().Y);
-            ang_test = (DAngle::fromBuild(actor->int_ang()) - ang).Normalized180() < DAngle::fromBuild(actor->spr.lotag);
+            ang_test = deltaangle(ang, DAngle::fromBuild(actor->int_ang())) < DAngle::fromBuild(actor->spr.lotag);
 
             FAFcansee_test =
                 (FAFcansee(actor->int_pos().X, actor->int_pos().Y, actor->int_pos().Z, actor->sector(), *tx, *ty, *tz, pp->cursector) ||
diff --git a/source/games/sw/src/player.cpp b/source/games/sw/src/player.cpp
index ca670820d..8d84807cb 100644
--- a/source/games/sw/src/player.cpp
+++ b/source/games/sw/src/player.cpp
@@ -1551,7 +1551,7 @@ void DoPlayerTurnTurret(PLAYER* pp, float avel)
 
         if (sop->limit_ang_center >= nullAngle)
         {
-            diff = (new_ang - sop->limit_ang_center).Normalized180();
+            diff = deltaangle(sop->limit_ang_center, new_ang);
 
             if (abs(diff) >= sop->limit_ang_delta)
             {
diff --git a/source/games/sw/src/track.cpp b/source/games/sw/src/track.cpp
index a66c547f4..d2c3929b8 100644
--- a/source/games/sw/src/track.cpp
+++ b/source/games/sw/src/track.cpp
@@ -2801,7 +2801,7 @@ void DoAutoTurretObject(SECTOR_OBJECT* sop)
 
         if (sop->limit_ang_center >= nullAngle)
         {
-            diff = (DAngle::fromBuild(sop->ang) - sop->limit_ang_center).Normalized180();
+            diff = deltaangle(sop->limit_ang_center, DAngle::fromBuild(sop->ang));
 
             if (abs(diff) >= sop->limit_ang_delta)
             {