Fix a bunch of mover bugs (#9999)

* Fix a bunch of mover bugs

Just regressions from random things

* Fix vehicle movement I guess

Content.Client/Physics/Controllers/MoverController.cs

@@ -24,8 +24,6 @@ namespace Content.Client.Physics.Controllers
             {
                 if (relayMover.RelayEntity != null)
                     HandleClientsideMovement(relayMover.RelayEntity.Value, frameTime);
-
-                return;
             }
 
             HandleClientsideMovement(player, frameTime);
@@ -34,13 +32,26 @@ namespace Content.Client.Physics.Controllers
         private void HandleClientsideMovement(EntityUid player, float frameTime)
         {
             if (!TryComp(player, out InputMoverComponent? mover) ||
-                !TryComp(player, out TransformComponent? xform)) return;
+                !TryComp(player, out TransformComponent? xform))
+            {
+                return;
+            }
 
             PhysicsComponent? body = null;
+            TransformComponent? xformMover = xform;
 
             if (mover.ToParent && HasComp<RelayInputMoverComponent>(xform.ParentUid))
             {
-                if (!TryComp(xform.ParentUid, out body)) return;
+                if (!TryComp(xform.ParentUid, out body) ||
+                    !TryComp(xform.ParentUid, out xformMover))
+                {
+                    return;
+                }
+
+                if (TryComp<InputMoverComponent>(xform.ParentUid, out var parentMover))
+                {
+                    mover.LastGridAngle = parentMover.LastGridAngle;
+                }
             }
             else if (!TryComp(player, out body))
             {
@@ -84,7 +95,7 @@ namespace Content.Client.Physics.Controllers
             }
 
             // Server-side should just be handled on its own so we'll just do this shizznit
-            HandleMobMovement(mover, body, xform, frameTime);
+            HandleMobMovement(mover, body, xformMover, frameTime);
         }
 
         protected override Filter GetSoundPlayers(EntityUid mover)

Content.Server/Physics/Controllers/MoverController.cs

@@ -36,23 +36,33 @@ namespace Content.Server.Physics.Controllers
 
             foreach (var (mover, xform) in EntityQuery<InputMoverComponent, TransformComponent>(true))
             {
-                if (relayQuery.TryGetComponent(mover.Owner, out var relayed) && relayed != null)
+                if (relayQuery.TryGetComponent(mover.Owner, out var relayed) && relayed.RelayEntity != null)
                 {
                     continue;
                 }
 
                 PhysicsComponent? body = null;
+                TransformComponent? xformMover = xform;
 
                 if (mover.ToParent && relayQuery.HasComponent(xform.ParentUid))
                 {
-                    if (!bodyQuery.TryGetComponent(xform.ParentUid, out body)) continue;
+                    if (!bodyQuery.TryGetComponent(xform.ParentUid, out body) ||
+                        !TryComp(xform.ParentUid, out xformMover))
+                    {
+                        continue;
+                    }
+
+                    if (TryComp<InputMoverComponent>(xform.ParentUid, out var parentMover))
+                    {
+                        mover.LastGridAngle = parentMover.LastGridAngle;
+                    }
                 }
                 else if (!bodyQuery.TryGetComponent(mover.Owner, out body))
                 {
                     continue;
                 }
 
-                HandleMobMovement(mover, body, xform, frameTime);
+                HandleMobMovement(mover, body, xformMover, frameTime);
             }
 
             HandleShuttleMovement(frameTime);

Content.Shared/Movement/Systems/SharedJetpackSystem.cs

@@ -114,7 +114,8 @@ public abstract class SharedJetpackSystem : EntitySystem
 
     private void OnJetpackToggle(EntityUid uid, JetpackComponent component, ToggleJetpackEvent args)
     {
-        if (args.Handled) return;
+        if (args.Handled)
+            return;
 
         if (TryComp<TransformComponent>(uid, out var xform) && !CanEnableOnGrid(xform.GridUid))
         {
@@ -130,8 +131,7 @@ public abstract class SharedJetpackSystem : EntitySystem
     private bool CanEnableOnGrid(EntityUid? gridUid)
     {
         return gridUid == null ||
-               (TryComp<GravityComponent>(gridUid, out var gravity) &&
+               (!HasComp<GravityComponent>(gridUid));
-                !gravity.Enabled);
     }
 
     private void OnJetpackGetAction(EntityUid uid, JetpackComponent component, GetItemActionsEvent args)

Content.Shared/Movement/Systems/SharedMoverController.cs

@@ -114,7 +114,8 @@ namespace Content.Shared.Movement.Systems
             }
 
             UsedMobMovement[mover.Owner] = true;
-            var weightless = _gravity.IsWeightless(mover.Owner, physicsComponent, xform);
+            // Specifically don't use mover.Owner because that may be different to the actual physics body being moved.
+            var weightless = _gravity.IsWeightless(physicsComponent.Owner, physicsComponent, xform);
             var (walkDir, sprintDir) = GetVelocityInput(mover);
             var touching = false;