Mirror 26441: Fix atmos NaN error

Content.Server/Atmos/Components/AirtightComponent.cs

@@ -9,27 +9,53 @@ public sealed partial class AirtightComponent : Component
     {
         public (EntityUid Grid, Vector2i Tile) LastPosition { get; set; }
 
+        /// <summary>
+        /// The directions in which this entity should block airflow, relative to its own reference frame.
+        /// </summary>
         [DataField("airBlockedDirection", customTypeSerializer: typeof(FlagSerializer<AtmosDirectionFlags>))]
         public int InitialAirBlockedDirection { get; set; } = (int) AtmosDirection.All;
 
+        /// <summary>
+        /// The directions in which the entity is currently blocking airflow, relative to the grid that the entity is on.
+        /// I.e., this is a variant of <see cref="InitialAirBlockedDirection"/> that takes into account the entity's
+        /// current rotation.
+        /// </summary>
         [ViewVariables]
         public int CurrentAirBlockedDirection;
 
-        [DataField("airBlocked")]
+        /// <summary>
+        /// Whether the airtight entity is currently blocking airflow.
+        /// </summary>
+        [DataField]
         public bool AirBlocked { get; set; } = true;
 
-        [DataField("fixVacuum")]
+        /// <summary>
+        /// If true, entities on this tile will attempt to draw air from surrounding tiles when they become unblocked
+        /// and currently have no air. This is generally only required when <see cref="NoAirWhenFullyAirBlocked"/> is
+        /// true, or if the entity is likely to occupy the same tile as another no-air airtight entity.
+        /// </summary>
+        [DataField]
         public bool FixVacuum { get; set; } = true;
+        // I think fixvacuum exists to ensure that repeatedly closing/opening air-blocking doors doesn't end up
+        // depressurizing a room. However it can also effectively be used as a means of generating gasses for free
+        // TODO ATMOS Mass conservation. Make it actually push/pull air from adjacent tiles instead of destroying & creating,
 
+
+        // TODO ATMOS Do we need these two fields?
         [DataField("rotateAirBlocked")]
         public bool RotateAirBlocked { get; set; } = true;
 
+        // TODO ATMOS remove this? What is this even for??
         [DataField("fixAirBlockedDirectionInitialize")]
         public bool FixAirBlockedDirectionInitialize { get; set; } = true;
 
-        [DataField("noAirWhenFullyAirBlocked")]
+        /// <summary>
+        /// If true, then the tile that this entity is on will have no air at all if all directions are blocked.
+        /// </summary>
+        [DataField]
         public bool NoAirWhenFullyAirBlocked { get; set; } = true;
 
+        /// <inheritdoc cref="CurrentAirBlockedDirection"/>
         [Access(Other = AccessPermissions.ReadWriteExecute)]
         public AtmosDirection AirBlockedDirection => (AtmosDirection)CurrentAirBlockedDirection;
     }

Content.Server/Atmos/EntitySystems/AirtightSystem.cs

@@ -85,8 +85,6 @@ private void OnAirtightMoved(Entity<AirtightComponent> airtight, ref MoveEvent e
         private bool AirtightMove(Entity<AirtightComponent> ent, ref MoveEvent ev)
         {
             var (owner, airtight) = ent;
-            if (!airtight.RotateAirBlocked || airtight.InitialAirBlockedDirection == (int)AtmosDirection.Invalid)
-                return false;
 
             airtight.CurrentAirBlockedDirection = (int) Rotate((AtmosDirection)airtight.InitialAirBlockedDirection, ev.NewRotation);
             var pos = airtight.LastPosition;

Content.Server/Atmos/EntitySystems/AtmosphereSystem.GridAtmosphere.cs

@@ -399,10 +399,7 @@ private void GridIsHotspotActive(EntityUid uid, GridAtmosphereComponent componen
         args.Handled = true;
     }
 
-    private void GridFixTileVacuum(
-        Entity<GridAtmosphereComponent, GasTileOverlayComponent, MapGridComponent, TransformComponent> ent,
-        TileAtmosphere tile,
-        float volume)
+    private void GridFixTileVacuum(TileAtmosphere tile)
     {
         DebugTools.AssertNotNull(tile.Air);
         DebugTools.Assert(tile.Air?.Immutable == false );
@@ -416,6 +413,9 @@ private void GridFixTileVacuum(
                 count++;
         }
 
+        if (count == 0)
+            return;
+
         var ratio = 1f / count;
         var totalTemperature = 0f;
 

Content.Server/Atmos/EntitySystems/AtmosphereSystem.Processing.cs

@@ -272,7 +272,7 @@ private void UpdateTileAir(
             tile.Air = new GasMixture(volume){Temperature = Atmospherics.T20C};
 
             if (data.FixVacuum)
-                GridFixTileVacuum(ent, tile, volume);
+                GridFixTileVacuum(tile);
         }
 
         private void QueueRunTiles(

Content.Server/Atmos/EntitySystems/AtmosphereSystem.Utils.cs

@@ -78,12 +78,13 @@ private AirtightData GetAirtightData(EntityUid uid, MapGridComponent grid, Vecto
             if (!_airtightQuery.TryGetComponent(ent, out var airtight))
                 continue;
 
+            fixVacuum |= airtight.FixVacuum;
+
             if(!airtight.AirBlocked)
                 continue;
 
             blockedDirs |= airtight.AirBlockedDirection;
             noAirWhenBlocked |= airtight.NoAirWhenFullyAirBlocked;
-            fixVacuum |= airtight.FixVacuum;
 
             if (blockedDirs == AtmosDirection.All && noAirWhenBlocked && fixVacuum)
                 break;

Content.Server/Atmos/GasMixture.cs

@@ -62,9 +62,9 @@ public float Temperature
             get => _temperature;
             set
             {
-                DebugTools.Assert(!float.IsNaN(_temperature));
-                if (Immutable) return;
-                _temperature = MathF.Min(MathF.Max(value, Atmospherics.TCMB), Atmospherics.Tmax);
+                DebugTools.Assert(!float.IsNaN(value));
+                if (!Immutable)
+                    _temperature = MathF.Min(MathF.Max(value, Atmospherics.TCMB), Atmospherics.Tmax);
             }
         }
 
@@ -91,6 +91,7 @@ public GasMixture(float[] moles, float temp, float volume = Atmospherics.CellVol
             if (volume < 0)
                 volume = 0;
 
+            DebugTools.Assert(!float.IsNaN(temp));
             _temperature = temp;
             Moles = moles;
             Volume = volume;

Content.Server/Atmos/TileAtmosphere.cs

@@ -28,6 +28,9 @@ public sealed class TileAtmosphere : IGasMixtureHolder
         [ViewVariables]
         public TileAtmosphere? PressureSpecificTarget { get; set; }
 
+        /// <summary>
+        /// This is either the pressure difference, or the quantity of moles transferred if monstermos is enabled.
+        /// </summary>
         [ViewVariables]
         public float PressureDifference { get; set; }
 

Resources/Prototypes/Entities/Structures/Doors/Airlocks/base_structureairlocks.yml

@@ -104,7 +104,6 @@
     - key: enum.WiresUiKey.Key
       type: WiresBoundUserInterface
   - type: Airtight
-    fixVacuum: true
     noAirWhenFullyAirBlocked: false
   - type: RadiationBlocker
     resistance: 3

Resources/Prototypes/Entities/Structures/Doors/Airlocks/highsec.yml

@@ -1,105 +1,104 @@
-- type: entity
-  id: HighSecDoor
-  parent: BaseStructure
-  name: high security door
-  description: Keeps the bad out and keeps the good in.
-  placement:
-    mode: SnapgridCenter
-  components:
-  - type: InteractionOutline
-  - type: Sprite
-    sprite: Structures/Doors/Airlocks/highsec/highsec.rsi
-    layers:
-    - state: closed
-      map: ["enum.DoorVisualLayers.Base"]
-    - state: closed_unlit
-      shader: unshaded
-      map: ["enum.DoorVisualLayers.BaseUnlit"]
-    - state: welded
-      map: ["enum.WeldableLayers.BaseWelded"]
-    - state: bolted_unlit
-      shader: unshaded
-      map: ["enum.DoorVisualLayers.BaseBolted"]
-    - state: emergency_unlit
-      map: ["enum.DoorVisualLayers.BaseEmergencyAccess"]
-      shader: unshaded
-    - state: panel_open
-      map: ["enum.WiresVisualLayers.MaintenancePanel"]
-  - type: AnimationPlayer
-  - type: Physics
-  - type: Fixtures
-    fixtures:
-      fix1:
-        shape:
-          !type:PhysShapeAabb
-          bounds: "-0.49,-0.49,0.49,0.49" # don't want this colliding with walls or they won't close
-        density: 100
-        mask:
-        - FullTileMask
-        layer:
-        - WallLayer
-  - type: ContainerFill
-    containers:
-      board: [ DoorElectronics ]
-  - type: ContainerContainer
-    containers:
-      board: !type:Container
-  - type: Door
-    crushDamage:
-      types:
-        Blunt: 50
-    openSound:
-      path: /Audio/Machines/airlock_open.ogg
-    closeSound:
-      path: /Audio/Machines/airlock_close.ogg
-    denySound:
-      path: /Audio/Machines/airlock_deny.ogg
-  - type: Weldable
-    time: 10
-  - type: Airlock
-  - type: NavMapDoor
-  - type: DoorBolt
-  - type: AccessReader
-  - type: Appearance
-  - type: WiresVisuals
-  - type: ApcPowerReceiver
-    powerLoad: 20
-  - type: ExtensionCableReceiver
-  - type: Electrified
-    enabled: false
-    usesApcPower: true
-  - type: WiresPanel
-  - type: WiresPanelSecurity
-    securityLevel: maxSecurity
-  - type: Wires
-    boardName: wires-board-name-highsec
-    layoutId: HighSec
-    alwaysRandomize: true
-  - type: UserInterface
-    interfaces:
-    - key: enum.WiresUiKey.Key
-      type: WiresBoundUserInterface
-  - type: Airtight
-    fixVacuum: true
-  - type: Occluder
-  - type: Damageable
-    damageContainer: StructuralInorganic
-    damageModifierSet: StrongMetallic
-  - type: Destructible
-    thresholds:
-    - trigger:
-        !type:DamageTrigger
-        damage: 1500
-      behaviors:
-      - !type:DoActsBehavior
-        acts: ["Destruction"]
-  - type: IconSmooth
-    key: walls
-    mode: NoSprite
-  - type: Construction
-    graph: Airlock
-    node: highSecDoor
-  - type: Tag
-    tags:
-      - HighSecDoor
-      # This tag is used to nagivate the Airlock construction graph. It's needed because this construction graph is shared between Airlock, AirlockGlass, and HighSecDoor
+- type: entity
+  id: HighSecDoor
+  parent: BaseStructure
+  name: high security door
+  description: Keeps the bad out and keeps the good in.
+  placement:
+    mode: SnapgridCenter
+  components:
+  - type: InteractionOutline
+  - type: Sprite
+    sprite: Structures/Doors/Airlocks/highsec/highsec.rsi
+    layers:
+    - state: closed
+      map: ["enum.DoorVisualLayers.Base"]
+    - state: closed_unlit
+      shader: unshaded
+      map: ["enum.DoorVisualLayers.BaseUnlit"]
+    - state: welded
+      map: ["enum.WeldableLayers.BaseWelded"]
+    - state: bolted_unlit
+      shader: unshaded
+      map: ["enum.DoorVisualLayers.BaseBolted"]
+    - state: emergency_unlit
+      map: ["enum.DoorVisualLayers.BaseEmergencyAccess"]
+      shader: unshaded
+    - state: panel_open
+      map: ["enum.WiresVisualLayers.MaintenancePanel"]
+  - type: AnimationPlayer
+  - type: Physics
+  - type: Fixtures
+    fixtures:
+      fix1:
+        shape:
+          !type:PhysShapeAabb
+          bounds: "-0.49,-0.49,0.49,0.49" # don't want this colliding with walls or they won't close
+        density: 100
+        mask:
+        - FullTileMask
+        layer:
+        - WallLayer
+  - type: ContainerFill
+    containers:
+      board: [ DoorElectronics ]
+  - type: ContainerContainer
+    containers:
+      board: !type:Container
+  - type: Door
+    crushDamage:
+      types:
+        Blunt: 50
+    openSound:
+      path: /Audio/Machines/airlock_open.ogg
+    closeSound:
+      path: /Audio/Machines/airlock_close.ogg
+    denySound:
+      path: /Audio/Machines/airlock_deny.ogg
+  - type: Weldable
+    time: 10
+  - type: Airlock
+  - type: NavMapDoor
+  - type: DoorBolt
+  - type: AccessReader
+  - type: Appearance
+  - type: WiresVisuals
+  - type: ApcPowerReceiver
+    powerLoad: 20
+  - type: ExtensionCableReceiver
+  - type: Electrified
+    enabled: false
+    usesApcPower: true
+  - type: WiresPanel
+  - type: WiresPanelSecurity
+    securityLevel: maxSecurity
+  - type: Wires
+    boardName: wires-board-name-highsec
+    layoutId: HighSec
+    alwaysRandomize: true
+  - type: UserInterface
+    interfaces:
+    - key: enum.WiresUiKey.Key
+      type: WiresBoundUserInterface
+  - type: Airtight
+  - type: Occluder
+  - type: Damageable
+    damageContainer: StructuralInorganic
+    damageModifierSet: StrongMetallic
+  - type: Destructible
+    thresholds:
+    - trigger:
+        !type:DamageTrigger
+        damage: 1500
+      behaviors:
+      - !type:DoActsBehavior
+        acts: ["Destruction"]
+  - type: IconSmooth
+    key: walls
+    mode: NoSprite
+  - type: Construction
+    graph: Airlock
+    node: highSecDoor
+  - type: Tag
+    tags:
+      - HighSecDoor
+      # This tag is used to nagivate the Airlock construction graph. It's needed because this construction graph is shared between Airlock, AirlockGlass, and HighSecDoor

Resources/Prototypes/Entities/Structures/Doors/Airlocks/shuttle.yml

@@ -57,7 +57,6 @@
     denySound:
       path: /Audio/Machines/airlock_deny.ogg
   - type: Airtight
-    fixVacuum: true
     noAirWhenFullyAirBlocked: false
   - type: Tag
     tags:

Resources/Prototypes/Entities/Structures/Doors/Firelocks/firelock.yml

@@ -93,7 +93,6 @@
     - type: Physics
       canCollide: false
     - type: Airtight
-      fixVacuum: true
       airBlocked: false
       noAirWhenFullyAirBlocked: true
     - type: RadiationBlocker
@@ -158,7 +157,6 @@
       sprite: Structures/Doors/edge_door_hazard.rsi
       snapCardinals: false
     - type: Airtight
-      fixVacuum: true
       airBlocked: false
       noAirWhenFullyAirBlocked: false
       airBlockedDirection:

Resources/Prototypes/Entities/Structures/Doors/MaterialDoors/material_doors.yml

@@ -40,7 +40,6 @@
       path: /Audio/Effects/stonedoor_openclose.ogg
   - type: Appearance
   - type: Airtight
-    fixVacuum: true
   - type: Damageable
     damageContainer: Inorganic
     damageModifierSet: Metallic