Some work

Content.Client/GameObjects/Components/Doors/AirlockVisualizer.cs

@@ -2,6 +2,7 @@
 using Content.Client.GameObjects.Components.Wires;
 using Content.Shared.Audio;
 using Content.Shared.GameObjects.Components.Doors;
+using JetBrains.Annotations;
 using Robust.Client.Animations;
 using Robust.Client.GameObjects;
 using Robust.Client.GameObjects.Components.Animations;
@@ -12,6 +13,7 @@ using YamlDotNet.RepresentationModel;
 
 namespace Content.Client.GameObjects.Components.Doors
 {
+    [UsedImplicitly]
     public class AirlockVisualizer : AppearanceVisualizer
     {
         private const string AnimationKey = "airlock_animation";
@@ -24,11 +26,17 @@ namespace Content.Client.GameObjects.Components.Doors
         {
             base.LoadData(node);
 
+            var delay = 0.8f;
+
             var openSound = node.GetNode("open_sound").AsString();
             var closeSound = node.GetNode("close_sound").AsString();
             var denySound = node.GetNode("deny_sound").AsString();
+            if (node.TryGetNode("animation_time", out var yamlNode))
+            {
+                delay = yamlNode.AsFloat();
+            }
 
-            CloseAnimation = new Animation {Length = TimeSpan.FromSeconds(0.8f)};
+            CloseAnimation = new Animation {Length = TimeSpan.FromSeconds(delay)};
             {
                 var flick = new AnimationTrackSpriteFlick();
                 CloseAnimation.AnimationTracks.Add(flick);
@@ -50,7 +58,7 @@ namespace Content.Client.GameObjects.Components.Doors
                 sound.KeyFrames.Add(new AnimationTrackPlaySound.KeyFrame(closeSound, 0));
             }
 
-            OpenAnimation = new Animation {Length = TimeSpan.FromSeconds(0.8f)};
+            OpenAnimation = new Animation {Length = TimeSpan.FromSeconds(delay)};
             {
                 var flick = new AnimationTrackSpriteFlick();
                 OpenAnimation.AnimationTracks.Add(flick);

Content.Server/Atmos/IGridAtmosphereComponent.cs

@@ -45,6 +45,12 @@ namespace Content.Server.Atmos
         /// </summary>
         void FixVacuum(MapIndices indices);
 
+        /// <summary>
+        ///     Revalidates indices immediately.
+        /// </summary>
+        /// <param name="indices"></param>
+        void Revalidate(MapIndices indices);
+
         /// <summary>
         ///     Adds an active tile so it becomes processed every update until it becomes inactive.
         ///     Also makes the tile excited.

Content.Server/Atmos/TileAtmosphere.cs

@@ -1051,6 +1051,25 @@ namespace Content.Server.Atmos
         private void ConsiderFirelocks(TileAtmosphere other)
         {
             // TODO ATMOS firelocks!
+            var reconsiderAdjacent = false;
+
+            foreach (var entity in GridIndices.GetEntitiesInTile(GridIndex))
+            {
+                if (!entity.TryGetComponent(out FirelockComponent firelock)) continue;
+                reconsiderAdjacent |= firelock.EmergencyPressureStop();
+            }
+
+            foreach (var entity in other.GridIndices.GetEntitiesInTile(other.GridIndex))
+            {
+                if (!entity.TryGetComponent(out FirelockComponent firelock)) continue;
+                reconsiderAdjacent |= firelock.EmergencyPressureStop();
+            }
+
+            if (reconsiderAdjacent)
+            {
+                UpdateAdjacent();
+                other.UpdateAdjacent();
+            }
         }
 
         private void React()

Content.Server/GameObjects/Components/Atmos/AirtightComponent.cs

@@ -28,7 +28,7 @@ namespace Content.Server.GameObjects.Components.Atmos
             set
             {
                 _airBlocked = value;
-                EntitySystem.Get<AtmosphereSystem>().GetGridAtmosphere(Owner.Transform.GridID)?.Invalidate(_snapGrid.Position);
+                EntitySystem.Get<AtmosphereSystem>().GetGridAtmosphere(Owner.Transform.GridID)?.Revalidate(_snapGrid.Position);
             }
         }
 

Content.Server/GameObjects/Components/Atmos/FirelockComponent.cs

@@ -0,0 +1,85 @@
+using System.Threading.Tasks;
+using Content.Server.GameObjects.Components.Doors;
+using Content.Server.GameObjects.Components.Interactable;
+using Content.Shared.GameObjects.Components.Doors;
+using Content.Shared.GameObjects.Components.Interactable;
+using Content.Shared.Interfaces.GameObjects.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Components;
+using Robust.Shared.Interfaces.GameObjects;
+
+namespace Content.Server.GameObjects.Components.Atmos
+{
+    [RegisterComponent]
+    public class FirelockComponent : ServerDoorComponent, IInteractUsing, IActivate, ICollideBehavior
+    {
+        public override string Name => "Firelock";
+
+        public override void Initialize()
+        {
+            base.Initialize();
+        }
+
+        public void CollideWith(IEntity collidedWith)
+        {
+            // We do nothing.
+        }
+
+        public void Activate(ActivateEventArgs eventArgs)
+        {
+            // We do nothing.
+        }
+
+        protected override void Startup()
+        {
+            base.Startup();
+
+            var airtightComponent = Owner.EnsureComponent<AirtightComponent>();
+            var collidableComponent = Owner.GetComponent<ICollidableComponent>();
+
+            Safety = false;
+            airtightComponent.AirBlocked = false;
+            collidableComponent.Hard = false;
+
+            if (Occludes && Owner.TryGetComponent(out OccluderComponent occluder))
+            {
+                occluder.Enabled = false;
+            }
+
+            State = DoorState.Open;
+            SetAppearance(DoorVisualState.Open);
+        }
+
+        public bool EmergencyPressureStop()
+        {
+            var closed = State == DoorState.Open && Close();
+
+            if(closed)
+                Owner.GetComponent<AirtightComponent>().AirBlocked = true;
+
+            return closed;
+        }
+
+        public override void Deny()
+        {
+        }
+
+        public override bool CanClose(IEntity user) => true;
+        public override bool CanOpen(IEntity user) => true;
+
+        public async Task<bool> InteractUsing(InteractUsingEventArgs eventArgs)
+        {
+            if (!eventArgs.Using.TryGetComponent<ToolComponent>(out var tool))
+                return false;
+
+            if (!await tool.UseTool(eventArgs.User, Owner, 3f, ToolQuality.Prying)) return false;
+
+            if (State == DoorState.Closed)
+                Open();
+            else if (State == DoorState.Open)
+                Close();
+
+            return true;
+        }
+    }
+}

Content.Server/GameObjects/Components/Atmos/GridAtmosphereComponent.cs

@@ -146,6 +146,16 @@ namespace Content.Server.GameObjects.Components.Atmos
         private void Revalidate()
         {
             foreach (var indices in _invalidatedCoords.ToArray())
+            {
+                Revalidate(indices);
+            }
+
+            _invalidatedCoords.Clear();
+        }
+
+        /// <inheritdoc />
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void Revalidate(MapIndices indices)
         {
             var tile = GetTile(indices);
             AddActiveTile(tile);
@@ -193,9 +203,6 @@ namespace Content.Server.GameObjects.Components.Atmos
             }
         }
 
-            _invalidatedCoords.Clear();
-        }
-
         /// <inheritdoc />
         public void FixVacuum(MapIndices indices)
         {

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

@@ -61,6 +61,8 @@ namespace Content.Server.GameObjects.Components.Doors
 
         [ViewVariables] private bool _occludes;
 
+        public bool Occludes => _occludes;
+
         public override void ExposeData(ObjectSerializer serializer)
         {
             base.ExposeData(serializer);
@@ -133,7 +135,7 @@ namespace Content.Server.GameObjects.Components.Doors
             }
         }
 
-        private void SetAppearance(DoorVisualState state)
+        protected void SetAppearance(DoorVisualState state)
         {
             if (_appearance != null || Owner.TryGetComponent(out _appearance))
                 _appearance.SetData(DoorVisuals.VisualState, state);
@@ -144,7 +146,7 @@ namespace Content.Server.GameObjects.Components.Doors
             return true;
         }
 
-        public bool CanOpen(IEntity user)
+        public virtual bool CanOpen(IEntity user)
         {
             if (!CanOpen()) return false;
             if (!Owner.TryGetComponent(out AccessReader accessReader))
@@ -205,7 +207,7 @@ namespace Content.Server.GameObjects.Components.Doors
             return true;
         }
 
-        public bool CanClose(IEntity user)
+        public virtual bool CanClose(IEntity user)
         {
             if (!CanClose()) return false;
             if (!Owner.TryGetComponent(out AccessReader accessReader))

Content.Shared/Maps/TurfHelpers.cs

@@ -1,5 +1,7 @@
 #nullable enable
 using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
 using Content.Shared.Physics;
 using Robust.Shared.Interfaces.GameObjects;
 using Robust.Shared.Interfaces.Map;
@@ -62,6 +64,7 @@ namespace Content.Shared.Maps
         /// <summary>
         ///     Helper that returns all entities in a turf.
         /// </summary>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static IEnumerable<IEntity> GetEntitiesInTile(this TileRef turf, bool approximate = false)
         {
             var entityManager = IoCManager.Resolve<IEntityManager>();
@@ -69,6 +72,32 @@ namespace Content.Shared.Maps
             return entityManager.GetEntitiesIntersecting(turf.MapIndex, GetWorldTileBox(turf), approximate);
         }
 
+        /// <summary>
+        ///     Helper that returns all entities in a turf.
+        /// </summary>
+        public static IEnumerable<IEntity> GetEntitiesInTile(this GridCoordinates coordinates, bool approximate = false)
+        {
+            var turf = coordinates.GetTileRef();
+
+            if (turf == null)
+                return Enumerable.Empty<IEntity>();
+
+            return GetEntitiesInTile(turf.Value);
+        }
+
+        /// <summary>
+        ///     Helper that returns all entities in a turf.
+        /// </summary>
+        public static IEnumerable<IEntity> GetEntitiesInTile(this MapIndices indices, GridId gridId, bool approximate = false)
+        {
+            var turf = indices.GetTileRef(gridId);
+
+            if (turf == null)
+                return Enumerable.Empty<IEntity>();
+
+            return GetEntitiesInTile(turf.Value);
+        }
+
         /// <summary>
         /// Checks if a turf has something dense on it.
         /// </summary>

Resources/Prototypes/Entities/Constructible/Doors/airlock_base.yml

@@ -54,7 +54,6 @@
       type: WiresBoundUserInterface
   - type: Airtight
     fixVacuum: true
-    adjacentAtmosphere: true
   - type: Occluder
   - type: SnapGrid
     offset: Center

Resources/Prototypes/Entities/Constructible/Doors/firelock.yml

@@ -0,0 +1,74 @@
+- type: entity
+  id: Firelock
+  name: firelock
+  description: Apply crowbar.
+  components:
+    - type: Clickable
+    - type: InteractionOutline
+    - type: Sprite
+      netsync: false
+      drawdepth: Mobs # They're on the same layer as mobs, perspective.
+      sprite: Constructible/Structures/Doors/firelock.rsi
+      layers:
+        - state: closed
+          map: ["enum.DoorVisualLayers.Base"]
+        - state: closed_unlit
+          shader: unshaded
+          map: ["enum.DoorVisualLayers.BaseUnlit"]
+        - state: bolted
+          shader: unshaded
+          map: ["enum.DoorVisualLayers.BaseBolted"]
+        - state: panel_open
+          map: ["enum.WiresVisualLayers.MaintenancePanel"]
+    - type: Icon
+      sprite: Constructible/Structures/Doors/firelock.rsi
+      state: closed
+    - type: Collidable
+      shapes:
+        - !type:PhysShapeAabb
+          bounds: "-0.49,-0.49,0.49,0.49" # don't want this colliding with walls or they won't close
+          mask:
+            - MobImpassable
+          layer:
+            - Opaque
+            - Impassable
+            - MobImpassable
+            - VaultImpassable
+            - SmallImpassable
+    - type: Firelock
+    - type: Appearance
+      visuals:
+        - type: AirlockVisualizer
+          open_sound: /Audio/Machines/airlock_open.ogg
+          close_sound: /Audio/Machines/airlock_close.ogg
+          deny_sound: /Audio/Machines/airlock_deny.ogg
+          animation_time: 0.6
+        - type: WiresVisualizer
+    - type: Wires
+      BoardName: "Firelock Control"
+      LayoutId: Firelock
+    - type: UserInterface
+      interfaces:
+        - key: enum.WiresUiKey.Key
+          type: WiresBoundUserInterface
+    - type: Airtight
+      fixVacuum: true
+    - type: Occluder
+    - type: SnapGrid
+      offset: Center
+  placement:
+    mode: SnapgridCenter
+
+- type: entity
+  id: FirelockGlass
+  parent: Firelock
+  name: glass firelock
+  components:
+    - type: Firelock
+      occludes: false
+    - type: Occluder
+      enabled: false
+    - type: Sprite
+      sprite: Constructible/Structures/Doors/firelock_glass.rsi
+    - type: Icon
+      sprite: Constructible/Structures/Doors/firelock_glass.rsi

Resources/Textures/Constructible/Structures/Doors/firelock.rsi/meta.json

@@ -0,0 +1,170 @@
+{
+    "version": 1,
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "license": "CC-BY-SA 3.0",
+    "copyright": "Taken from https://github.com/tgstation/tgstation at 04e43d8c1d5097fdb697addd4395fb849dd341bd",
+    "states": [
+        {
+            "name": "closed",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "closing",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "deny",
+            "directions": 1,
+            "delays": [
+                [
+                    0.1,
+                    0.1,
+                    0.1
+                ]
+            ]
+        },
+        {
+            "name": "frame1",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "frame2",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "frame3",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "frame4",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "locked",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "opening",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "panel_closing",
+            "directions": 1,
+            "delays": [
+                [
+                    0.1,
+                    0.1,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.27
+                ]
+            ]
+        },
+        {
+            "name": "panel_open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "panel_opening",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "welded",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "welded_open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        }
+    ]
+}

Resources/Textures/Constructible/Structures/Doors/firelock_glass.rsi/meta.json

@@ -0,0 +1,134 @@
+{
+    "version": 1,
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "license": "CC-BY-SA 3.0",
+    "copyright": "Taken from https://github.com/tgstation/tgstation at 04e43d8c1d5097fdb697addd4395fb849dd341bd",
+    "states": [
+        {
+            "name": "closed",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "closing",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "deny",
+            "directions": 1,
+            "delays": [
+                [
+                    0.1,
+                    0.1,
+                    0.1
+                ]
+            ]
+        },
+        {
+            "name": "locked",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "opening",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "panel_closing",
+            "directions": 1,
+            "delays": [
+                [
+                    0.1,
+                    0.1,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.27
+                ]
+            ]
+        },
+        {
+            "name": "panel_open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "panel_opening",
+            "directions": 1,
+            "delays": [
+                [
+                    0.2,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.07,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "welded",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        },
+        {
+            "name": "welded_open",
+            "directions": 1,
+            "delays": [
+                [
+                    1.0
+                ]
+            ]
+        }
+    ]
+}

SpaceStation14.sln.DotSettings

@@ -51,6 +51,7 @@
     <s:String x:Key="/Default/FilterSettingsManager/CoverageFilterXml/@EntryValue">&lt;data&gt;&lt;IncludeFilters /&gt;&lt;ExcludeFilters&gt;&lt;Filter ModuleMask="Lidgren.Network" ModuleVersionMask="*" ClassMask="*" FunctionMask="*" IsEnabled="True" /&gt;&lt;/ExcludeFilters&gt;&lt;/data&gt;</s:String>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Collidable/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Cooldowns/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Firelock/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=firelocks/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=diminishingly/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=flashable/@EntryIndexedValue">True</s:Boolean>