diff --git a/source/sw/src/game.h b/source/sw/src/game.h
index 6e9b815e4..bffb576cc 100644
--- a/source/sw/src/game.h
+++ b/source/sw/src/game.h
@@ -2164,6 +2164,7 @@ void SetBorder(PLAYERp pp, int);
 void SetFragBar(PLAYERp pp);
 int Distance(int x1, int y1, int x2, int y2);
 short GetDeltaAngle(short, short);
+fix16_t GetDeltaQ16Angle(fix16_t, fix16_t);
 
 int SetActorRotation(short SpriteNum,int,int);
 int NewStateGroup(short SpriteNum, STATEp SpriteGroup[]);
diff --git a/source/sw/src/player.cpp b/source/sw/src/player.cpp
index aac32f886..7ec50d68d 100644
--- a/source/sw/src/player.cpp
+++ b/source/sw/src/player.cpp
@@ -1153,6 +1153,25 @@ GetDeltaAngle(short ang1, short ang2)
 
 }
 
+fix16_t
+GetDeltaQ16Angle(fix16_t ang1, fix16_t ang2)
+{
+    // Look at the smaller angle if > 1024 (180 degrees)
+    if (fix16_abs(ang1 - ang2) > fix16_from_int(1024))
+    {
+        if (ang1 <= fix16_from_int(1024))
+            ang1 += fix16_from_int(2048);
+
+        if (ang2 <= fix16_from_int(1024))
+            ang2 += fix16_from_int(2048);
+    }
+
+    //if (ang1 - ang2 == -fix16_from_int(1024))
+    //    return(fix16_from_int(1024));
+
+    return ang1 - ang2;
+}
+
 TARGET_SORT TargetSort[MAX_TARGET_SORT];
 unsigned TargetSortCount;