From f49f90906c76f4581b1caa225ee841fd60b1c04d Mon Sep 17 00:00:00 2001
From: Tiger Wang <ziwei.tiger@outlook.com>
Date: Tue, 21 Apr 2020 23:16:28 +0100
Subject: Reduced packet spam when entities idle

* Try not to send look packets when nothing's changed.
---
 src/Mobs/Monster.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/Mobs/Monster.cpp')

diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index 75bda197f..1c3b3a45e 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -490,14 +490,22 @@ void cMonster::CalcLeashActions(std::chrono::milliseconds a_Dt)
 void cMonster::SetPitchAndYawFromDestination(bool a_IsFollowingPath)
 {
 	Vector3d BodyDistance;
-	if (!a_IsFollowingPath && (GetTarget() != nullptr))
+	if (!a_IsFollowingPath)
 	{
+		if (GetTarget() == nullptr)
+		{
+			// Avoid dirtying head position when nothing will change
+			// Thus avoids creating unnecessary network traffic
+			return;
+		}
+
 		BodyDistance = GetTarget()->GetPosition() - GetPosition();
 	}
 	else
 	{
 		BodyDistance = m_NextWayPointPosition - GetPosition();
 	}
+
 	double BodyRotation, BodyPitch;
 	BodyDistance.Normalize();
 	VectorToEuler(BodyDistance.x, BodyDistance.y, BodyDistance.z, BodyRotation, BodyPitch);
-- 
cgit v1.2.3