Allow all door access in Suspicion mode (#1817)

* Add AccessTypes, let RuleSuspicion change it

* Fix enum description

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

* Move check to CanOpen()

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Content.Server/GameObjects/Components/Doors/ServerDoorComponent.cs

@@ -6,6 +6,7 @@ using Content.Server.GameObjects.Components.Access;
 using Content.Server.GameObjects.Components.Atmos;
 using Content.Server.GameObjects.Components.GUI;
 using Content.Server.GameObjects.Components.Mobs;
+using Content.Server.GameObjects.EntitySystems;
 using Content.Shared.Damage;
 using Content.Shared.GameObjects.Components.Body;
 using Content.Shared.GameObjects.Components.Damage;
@@ -134,22 +135,42 @@ namespace Content.Server.GameObjects.Components.Doors
         public bool CanOpen(IEntity user)
         {
             if (!CanOpen()) return false;
-            if (!Owner.TryGetComponent(out AccessReader? accessReader))
+
+            if (!Owner.TryGetComponent<AccessReader>(out var accessReader))
             {
                 return true;
             }
 
-            return accessReader.IsAllowed(user);
+            var doorSystem = EntitySystem.Get<DoorSystem>();
+            var isAirlockExternal = HasAccessType("External");
+
+            return doorSystem.AccessType switch
+            {
+                DoorSystem.AccessTypes.AllowAll => true,
+                DoorSystem.AccessTypes.AllowAllIdExternal => isAirlockExternal ? accessReader.IsAllowed(user) : true,
+                DoorSystem.AccessTypes.AllowAllNoExternal => !isAirlockExternal,
+                _ => accessReader.IsAllowed(user)
+            };
+        }
+
+        /// <summary>
+        /// Returns whether a door has a certain access type. For example, maintenance doors will have access type
+        /// "Maintenance" in their AccessReader.
+        /// </summary>
+        private bool HasAccessType(string accesType)
+        {
+            if(Owner.TryGetComponent<AccessReader>(out var accessReader))
+            {
+                return accessReader.AccessLists.Any(list => list.Contains(accesType));
+            }
+
+            return true;
         }
 
         public void TryOpen(IEntity user)
         {
-            if (!CanOpen(user))
+            if (CanOpen(user))
             {
-                Deny();
-                return;
-            }
-
                 Open();
 
                 if (user.TryGetComponent(out HandsComponent? hands) && hands.Count == 0)
@@ -158,6 +179,11 @@ namespace Content.Server.GameObjects.Components.Doors
                                                                    AudioParams.Default.WithVolume(-2));
                 }
             }
+            else
+            {
+                Deny();
+            }
+        }
 
         public void Open()
         {

Content.Server/GameObjects/EntitySystems/DoorSystem.cs

@@ -1,10 +1,44 @@
 using Content.Server.GameObjects.Components.Doors;
+using JetBrains.Annotations;
 using Robust.Shared.GameObjects.Systems;
 
 namespace Content.Server.GameObjects.EntitySystems
 {
+    [UsedImplicitly]
     class DoorSystem : EntitySystem
     {
+        /// <summary>
+        ///     Determines the base access behavior of all doors on the station.
+        /// </summary>
+        public AccessTypes AccessType { get; set; }
+
+        /// <summary>
+        /// How door access should be handled.
+        /// </summary>
+        public enum AccessTypes
+        {
+            /// <summary> ID based door access. </summary>
+            Id,
+            /// <summary>
+            /// Allows everyone to open doors, except external which airlocks are still handled with ID's
+            /// </summary>
+            AllowAllIdExternal,
+            /// <summary>
+            /// Allows everyone to open doors, except external airlocks which are never allowed, even if the user has
+            /// ID access.
+            /// </summary>
+            AllowAllNoExternal,
+            /// <summary> Allows everyone to open all doors. </summary>
+            AllowAll
+        }
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            AccessType = AccessTypes.Id;
+        }
+
         /// <inheritdoc />
         public override void Update(float frameTime)
         {

Content.Server/GameTicking/GameRules/RuleSuspicion.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Threading;
 using Content.Server.GameObjects.Components.Suspicion;
+using Content.Server.GameObjects.EntitySystems;
 using Content.Server.Interfaces.Chat;
 using Content.Server.Interfaces.GameTicking;
-using Content.Server.Mobs;
 using Content.Server.Mobs.Roles;
 using Content.Server.Players;
 using Content.Shared.GameObjects.Components.Damage;
@@ -38,6 +38,8 @@ namespace Content.Server.GameTicking.GameRules
             EntitySystem.Get<AudioSystem>().PlayGlobal("/Audio/Misc/tatoralert.ogg", AudioParams.Default,
                 (session) => session.ContentData().Mind?.HasRole<SuspicionTraitorRole>() ?? false);
 
+            EntitySystem.Get<DoorSystem>().AccessType = DoorSystem.AccessTypes.AllowAllNoExternal;
+
             Timer.SpawnRepeating(DeadCheckDelay, _checkWinConditions, _checkTimerCancel.Token);
         }
 
@@ -45,6 +47,8 @@ namespace Content.Server.GameTicking.GameRules
         {
             base.Removed();
 
+            EntitySystem.Get<DoorSystem>().AccessType = DoorSystem.AccessTypes.Id;
+
             _checkTimerCancel.Cancel();
         }