From 96aa70e304b455064e4f4ae413202a94ee25e15a Mon Sep 17 00:00:00 2001
From: metalgearsloth <comedian_vs_clown@hotmail.com>
Date: Sat, 13 Nov 2021 14:40:27 +1100
Subject: [PATCH] Avoid unnecessary parent worldrot resolve for kinematic
 movement

---
 Content.Shared/Movement/SharedMoverController.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Content.Shared/Movement/SharedMoverController.cs b/Content.Shared/Movement/SharedMoverController.cs
index 735d5ff559..13e71a3f9f 100644
--- a/Content.Shared/Movement/SharedMoverController.cs
+++ b/Content.Shared/Movement/SharedMoverController.cs
@@ -68,17 +68,18 @@ namespace Content.Shared.Movement
             var (walkDir, sprintDir) = mover.VelocityDir;
 
             var transform = mover.Owner.Transform;
+            var parentRotation = transform.Parent!.WorldRotation;
 
             // Regular movement.
             // Target velocity.
             var total = walkDir * mover.CurrentWalkSpeed + sprintDir * mover.CurrentSprintSpeed;
 
-            var worldTotal = _relativeMovement ? transform.Parent!.WorldRotation.RotateVec(total) : total;
+            var worldTotal = _relativeMovement ? parentRotation.RotateVec(total) : total;
 
             if (transform.GridID == GridId.Invalid)
                 worldTotal = mover.LastGridAngle.RotateVec(worldTotal);
             else
-                mover.LastGridAngle = transform.Parent!.WorldRotation;
+                mover.LastGridAngle = parentRotation;
 
             if (worldTotal != Vector2.Zero)
                 transform.WorldRotation = worldTotal.GetDir().ToAngle();