ArrivalsProtect update

Content.Server/Backmen/Arrivals/ArrivalsProtectSystem.cs

@@ -101,7 +101,7 @@ private void OnBuildAttemptEvent(BuildAttemptEvent ev)
             return;
         }
 
-        if (HasComp<ArrivalsProtectGridComponent>(grid.Value))
+        if (ArrivalsProtectGridQuery.HasComp(grid.Value))
         {
             ev.Cancel();
         }

Content.Shared/Backmen/Arrivals/FlatPackUserAttemptUseEvent.cs

@@ -0,0 +1,13 @@
+using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.Backmen.Arrivals;
+
+[ByRefEvent]
+public struct FlatPackUserAttemptUseEvent(EntityUid user, EntProtoId? itemToSpawn, EntityCoordinates coords)
+{
+    public readonly EntityUid User = user;
+    public readonly EntProtoId? ItemToSpawn = itemToSpawn;
+    public readonly EntityCoordinates Coords = coords;
+    public bool Cancelled = false;
+}

Content.Shared/Backmen/Arrivals/SharedArrivalsProtectSystem.cs

@@ -4,13 +4,22 @@ namespace Content.Shared.Backmen.Arrivals;
 
 public abstract class SharedArrivalsProtectSystem : EntitySystem
 {
+    protected EntityQuery<ArrivalsProtectGridComponent> ArrivalsProtectGridQuery;
     public override void Initialize()
     {
         base.Initialize();
 
         SubscribeLocalEvent<ToolUserAttemptUseEvent>(OnTryUse);
+        SubscribeLocalEvent<ArrivalsProtectGridComponent, FlatPackUserAttemptUseEvent>(OnTryUnpack);
+        ArrivalsProtectGridQuery = GetEntityQuery<ArrivalsProtectGridComponent>();
     }
 
+    private void OnTryUnpack(Entity<ArrivalsProtectGridComponent> ent, ref FlatPackUserAttemptUseEvent args)
+    {
+        args.Cancelled = true;
+    }
+
+
     private void OnTryUse(ref ToolUserAttemptUseEvent msg)
     {
         if (msg.Target == null)
@@ -21,7 +30,7 @@ private void OnTryUse(ref ToolUserAttemptUseEvent msg)
 
         var pos = Transform(msg.Target!.Value);
 
-        if (pos.GridUid == null || !HasComp<ArrivalsProtectGridComponent>(pos.GridUid))
+        if (pos.GridUid == null || !ArrivalsProtectGridQuery.HasComp(pos.GridUid))
         {
             return;
         }

Content.Shared/Construction/SharedFlatpackSystem.cs

@@ -90,6 +90,27 @@ private void OnFlatpackInteractUsing(Entity<FlatpackComponent> ent, ref Interact
             return;
         }
 
+        // start-backmen: protection system
+        var ev = new Backmen.Arrivals.FlatPackUserAttemptUseEvent(args.User, comp.Entity, coords);
+        if (xform.GridUid is { } gridUid)
+        {
+            RaiseLocalEvent(gridUid, ref ev);
+            if (ev.Cancelled)
+            {
+                if (_net.IsServer)
+                    _popup.PopupEntity(Loc.GetString("flatpack-unpack-grid-error"), uid, args.User);
+                return;
+            }
+            RaiseLocalEvent(args.User, ref ev);
+            if (ev.Cancelled)
+            {
+                if (_net.IsServer)
+                    _popup.PopupEntity(Loc.GetString("flatpack-unpack-user-error"), uid, args.User);
+                return;
+            }
+        }
+        // end-backmen: protection system
+
         if (_net.IsServer)
         {
             var spawn = Spawn(comp.Entity, _map.GridTileToLocal(grid, gridComp, buildPos));

Resources/Locale/ru-RU/construction/components/flatpack.ftl

@@ -9,3 +9,7 @@ flatpacker-ui-cost-label = Стоимость запаковки
 flatpacker-ui-no-board-label = Отсутствует машинная плата!
 flatpacker-ui-insert-board = Для начала вставьте машинную плату.
 flatpacker-ui-pack-button = Упаковать
+
+# backmen
+flatpack-unpack-grid-error = Данная зона запрещает распаковывать предметы!
+flatpack-unpack-user-error = Данная зона запрещает Вам распаковывать предметы!