From f97dced4a785b0be20c607963987e56d10ffae4d Mon Sep 17 00:00:00 2001
From: Azaezel <quillus@hotmail.com>
Date: Fri, 17 Jul 2015 03:34:22 -0500
Subject: [PATCH] followobject position caching re-use the position of an
 object we're following (within reason) so we're not constantly regenning a
 path.

---
 Engine/source/T3D/aiPlayer.cpp | 4 ++++
 Engine/source/T3D/aiPlayer.h   | 1 +
 2 files changed, 5 insertions(+)

diff --git a/Engine/source/T3D/aiPlayer.cpp b/Engine/source/T3D/aiPlayer.cpp
index 630d4619c..19f04ff19 100644
--- a/Engine/source/T3D/aiPlayer.cpp
+++ b/Engine/source/T3D/aiPlayer.cpp
@@ -831,11 +831,15 @@ void AIPlayer::followObject(SceneObject *obj, F32 radius)
    if(!isServerObject())
       return;
 
+   if ((mFollowData.lastPos - obj->getPosition()).len()<mMoveTolerance)
+      return;
+
    if(setPathDestination(obj->getPosition()))
    {
       clearCover();
       mFollowData.object = obj;
       mFollowData.radius = radius;
+      mFollowData.lastPos = obj->getPosition();
    }
 }
 
diff --git a/Engine/source/T3D/aiPlayer.h b/Engine/source/T3D/aiPlayer.h
index cff90d549..11996e87d 100644
--- a/Engine/source/T3D/aiPlayer.h
+++ b/Engine/source/T3D/aiPlayer.h
@@ -122,6 +122,7 @@ private:
       SimObjectPtr<SceneObject> object;
       /// Distance at whcih to follow.
       F32 radius;
+      Point3F lastPos;
       /// Default constructor.
       FollowData() : object(NULL)
       {