From 941bf02e31239d576ed6c35f8d1bdc9fc2e92db4 Mon Sep 17 00:00:00 2001
From: hondacrx <prelude_20032002@yahoo.com>
Date: Thu, 23 Jul 2020 18:23:01 -0400
Subject: [PATCH] Fixed a potential crash when resuming a
 SplineChainMovementGenerator.

Port From (https://github.com/TrinityCore/TrinityCore/commit/8eaf00a11f5276bf56d023a8bce11fc881466eec)
---
 .../Game/Movement/Generators/SplineChainMovementGenerator.cs  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Source/Game/Movement/Generators/SplineChainMovementGenerator.cs b/Source/Game/Movement/Generators/SplineChainMovementGenerator.cs
index b797df7ee..265763f78 100644
--- a/Source/Game/Movement/Generators/SplineChainMovementGenerator.cs
+++ b/Source/Game/Movement/Generators/SplineChainMovementGenerator.cs
@@ -93,7 +93,9 @@ namespace Game.Movement
                     SendPathSpline(me, span.Slice(_nextFirstWP - 1));
                     Log.outDebug(LogFilter.Movement, "{0}: Resumed spline chain generator from resume state.", me.GetGUID().ToString());
                     ++_nextIndex;
-                    if (_msToNext == 0)
+                    if (_nextIndex >= _chainSize)
+                        _msToNext = 0;
+                    else if (_msToNext == 0)
                         _msToNext = 1;
                     _nextFirstWP = 0;
                 }