Move rotate event subscription from NodeContainerComponent to NodeContainerSystem (#2506)

Content.Server/GameObjects/Components/NodeContainer/NodeContainerComponent.cs

@@ -1,9 +1,6 @@
 using System.Collections.Generic;
-using System.Linq;
 using Content.Server.GameObjects.Components.NodeContainer.Nodes;
 using Robust.Shared.GameObjects;
-using Robust.Shared.GameObjects.Components.Transform;
-using Robust.Shared.Maths;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
 
@@ -34,8 +31,6 @@ namespace Content.Server.GameObjects.Components.NodeContainer
             {
                 node.Initialize(Owner);
             }
-
-            Owner.EntityManager.EventBus.SubscribeEvent<RotateEvent>(EventSource.Local, this, RotateEvent);
         }
 
         protected override void Startup()
@@ -55,16 +50,5 @@ namespace Content.Server.GameObjects.Components.NodeContainer
             }
             base.OnRemove();
         }
-
-        private void RotateEvent(RotateEvent ev)
-        {
-            if (ev.Sender != Owner || ev.NewRotation == ev.OldRotation)
-                return;
-
-            foreach (var rotatableNode in Nodes.OfType<IRotatableNode>())
-            {
-                rotatableNode.RotateEvent(ev);
-            }
-        }
     }
 }

Content.Server/GameObjects/EntitySystems/NodeContainerSystem.cs

@@ -0,0 +1,45 @@
+using System.Linq;
+using Content.Server.GameObjects.Components.NodeContainer;
+using Content.Server.GameObjects.Components.NodeContainer.Nodes;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects.Components.Transform;
+using Robust.Shared.GameObjects.Systems;
+
+namespace Content.Server.GameObjects.EntitySystems
+{
+    [UsedImplicitly]
+    public class NodeContainerSystem : EntitySystem
+    {
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            SubscribeLocalEvent<RotateEvent>(RotateEvent);
+        }
+
+        public override void Shutdown()
+        {
+            base.Shutdown();
+
+            UnsubscribeLocalEvent<RotateEvent>();
+        }
+
+        private void RotateEvent(RotateEvent ev)
+        {
+            if (!ev.Sender.TryGetComponent(out NodeContainerComponent container))
+            {
+                return;
+            }
+
+            if (ev.NewRotation == ev.OldRotation)
+            {
+                return;
+            }
+
+            foreach (var rotatableNode in container.Nodes.OfType<IRotatableNode>())
+            {
+                rotatableNode.RotateEvent(ev);
+            }
+        }
+    }
+}