From 1dfb1dcf05685d1e874ed51078ddb95c9452e46c Mon Sep 17 00:00:00 2001
From: hondacrx <prelude_20032002@yahoo.com>
Date: Mon, 15 Nov 2021 20:53:37 -0500
Subject: [PATCH] Core/Movement: Speed Limit for Spline

Port From (https://github.com/TrinityCore/TrinityCore/commit/8ff0572ee30db22c81d9131348f5350781f64a4f)
---
 Source/Game/Movement/MoveSplineInit.cs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Source/Game/Movement/MoveSplineInit.cs b/Source/Game/Movement/MoveSplineInit.cs
index 58a496b70..e22cca753 100644
--- a/Source/Game/Movement/MoveSplineInit.cs
+++ b/Source/Game/Movement/MoveSplineInit.cs
@@ -124,6 +124,20 @@ namespace Game.Movement
                 args.velocity = unit.GetSpeed(SelectSpeedType(moveFlagsForSpeed));
             }
 
+            // limit the speed in the same way the client does
+            float speedLimit()
+            {
+                if (args.flags.HasFlag(SplineFlag.Unknown_0x20000000))
+                    return float.MaxValue;
+
+                if (args.flags.HasFlag(SplineFlag.Falling) || args.flags.HasFlag(SplineFlag.Catmullrom) || args.flags.HasFlag(SplineFlag.Flying) || args.flags.HasFlag(SplineFlag.Parabolic))
+                    return 50.0f;
+
+                return Math.Max(28.0f, unit.GetSpeed(UnitMoveType.Run) * 4.0f);
+            };
+
+            args.velocity = Math.Min(args.velocity, speedLimit());
+
             if (!args.Validate(unit))
                 return 0;