Disable the removel of gravity generator and anchors while they are on

Content.Server/Gravity/GravityGeneratorSystem.cs

@@ -1,7 +1,11 @@
 using Content.Server.Emp; // Frontier: Upstream - #28984
+using Content.Server.Popups;
 using Content.Server.Power.Components;
 using Content.Server.Power.EntitySystems;
+using Content.Shared.Construction.Components; // Frontier
 using Content.Shared.Gravity;
+using Content.Shared.Tools.Components; // Frontier
+using Content.Shared.Popups; // Frontier
 
 namespace Content.Server.Gravity;
 
@@ -10,6 +14,8 @@ public sealed class GravityGeneratorSystem : EntitySystem
     [Dependency] private readonly GravitySystem _gravitySystem = default!;
     [Dependency] private readonly SharedPointLightSystem _lights = default!;
 
+    [Dependency] private readonly PopupSystem _popupSystem = default!; // Frontier
+
     public override void Initialize()
     {
         base.Initialize();
@@ -18,6 +24,8 @@ public override void Initialize()
         SubscribeLocalEvent<GravityGeneratorComponent, ChargedMachineActivatedEvent>(OnActivated);
         SubscribeLocalEvent<GravityGeneratorComponent, ChargedMachineDeactivatedEvent>(OnDeactivated);
         // SubscribeLocalEvent<GravityGeneratorComponent, EmpPulseEvent>(OnEmpPulse); // Frontier: Upstream - #28984
+        SubscribeLocalEvent<GravityGeneratorComponent, UnanchorAttemptEvent>(OnUnanchorAttempt); // Frontier
+        SubscribeLocalEvent<GravityGeneratorComponent, ToolUseAttemptEvent>(OnToolUseAttempt); // Frontier
     }
 
     public override void Update(float frameTime)
@@ -59,6 +67,48 @@ private void OnDeactivated(Entity<GravityGeneratorComponent> ent, ref ChargedMac
         }
     }
 
+    /// <summary>
+    /// Frontier: Prevent unanchoring when anchor is active
+    /// </summary>
+    private void OnUnanchorAttempt(Entity<GravityGeneratorComponent> ent, ref UnanchorAttemptEvent args)
+    {
+        if (!ent.Comp.GravityActive)
+            return;
+
+        _popupSystem.PopupEntity(
+            Loc.GetString("gravity-generator-unanchoring-failed"),
+            ent,
+            args.User,
+            PopupType.Medium);
+
+        args.Cancel();
+    }
+
+    /// <summary>
+    /// Frontier: Prevent disassembly when anchor is active
+    /// </summary>
+    private void OnToolUseAttempt(Entity<GravityGeneratorComponent> ent, ref ToolUseAttemptEvent args)
+    {
+        if (!ent.Comp.GravityActive)
+            return;
+
+        foreach (var quality in args.Qualities)
+        {
+            // prevent reconstruct
+            if (quality == "Prying")
+            {
+                _popupSystem.PopupEntity(
+                    Loc.GetString("gravity-generator-unanchoring-failed"),
+                     ent,
+                     args.User,
+                     PopupType.Medium);
+
+                args.Cancel();
+                return;
+            }
+        }
+    }
+
     private void OnParentChanged(EntityUid uid, GravityGeneratorComponent component, ref EntParentChangedMessage args)
     {
         if (component.GravityActive && TryComp(args.OldParent, out GravityComponent? gravity))

Content.Server/Shuttles/Systems/StationAnchorSystem.cs

@@ -1,8 +1,9 @@
-using Content.Server.Popups;
+using Content.Server.Popups;
 using Content.Server.Power.EntitySystems;
 using Content.Server.Shuttles.Components;
 using Content.Shared.Construction.Components;
 using Content.Shared.Popups;
+using Content.Shared.Tools.Components; // Frontier
 
 namespace Content.Server.Shuttles.Systems;
 
@@ -21,6 +22,8 @@ public override void Initialize()
         SubscribeLocalEvent<StationAnchorComponent, ChargedMachineDeactivatedEvent>(OnDeactivated);
 
         SubscribeLocalEvent<StationAnchorComponent, MapInitEvent>(OnMapInit);
+
+        SubscribeLocalEvent<StationAnchorComponent, ToolUseAttemptEvent>(OnToolUseAttempt); // Frontier
     }
 
     private void OnMapInit(Entity<StationAnchorComponent> ent, ref MapInitEvent args)
@@ -58,6 +61,31 @@ private void OnUnanchorAttempt(Entity<StationAnchorComponent> ent, ref UnanchorA
         args.Cancel();
     }
 
+    /// <summary>
+    /// Frontier: Prevent disassembly when anchor is active
+    /// </summary>
+    private void OnToolUseAttempt(Entity<StationAnchorComponent> ent, ref ToolUseAttemptEvent args)
+    {
+        if (!ent.Comp.SwitchedOn)
+            return;
+
+        foreach (var quality in args.Qualities)
+        {
+            // prevent reconstruct
+            if (quality == "Prying")
+            {
+                _popupSystem.PopupEntity(
+                    Loc.GetString("station-anchor-unanchoring-failed"),
+                     ent,
+                     args.User,
+                     PopupType.Medium);
+
+                args.Cancel();
+                return;
+            }
+        }
+    }
+
     private void OnAnchorStationChange(Entity<StationAnchorComponent> ent, ref AnchorStateChangedEvent args)
     {
         if (!args.Anchored)

Resources/Locale/en-US/_NF/gravity/gravity-generator-component.ftl

@@ -0,0 +1,3 @@
+### Gravity Generator
+
+gravity-generator-unanchoring-failed = Can't unanchor an active gravity generator