From 655b5fa33e3f0047ec5e23f840a75bf8c1179a4c Mon Sep 17 00:00:00 2001
From: Marco Cawthorne <marco@vera-visions.com>
Date: Wed, 18 Jan 2023 19:01:56 -0800
Subject: [PATCH] NSEntity: add method IsFacing() which should make some common
 sneakish tasks easier.

---
 src/shared/NSEntity.h  | 3 +++
 src/shared/NSEntity.qc | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/src/shared/NSEntity.h b/src/shared/NSEntity.h
index 4da538e3..9e903b3d 100644
--- a/src/shared/NSEntity.h
+++ b/src/shared/NSEntity.h
@@ -351,6 +351,9 @@ public:
 		of any entity class that you want to support think functions in.
 		This saves you the effort of writing your own routines and methods. */
 	nonvirtual void HandleThink(void);
+
+	/** Returns either true or false depending on if this entity is facing the entity in question. */
+	nonvirtual bool IsFacing(entity);
 };
 
 #ifdef CLIENT
diff --git a/src/shared/NSEntity.qc b/src/shared/NSEntity.qc
index 1c5ef141..1bc2f231 100644
--- a/src/shared/NSEntity.qc
+++ b/src/shared/NSEntity.qc
@@ -892,6 +892,13 @@ void NSEntity::HandleThink( void ) {
 	}
 }
 
+bool NSEntity::IsFacing(entity target)
+{
+	vector vecDiff = normalize(target.origin - origin);
+	makevectors(angles);
+	return ((vecDiff * v_forward) > 0 ) ? true : false;
+}
+
 #ifdef CLIENT
 void
 NSEntity_ReadEntity(bool new)