Gas pipe sensors

Content.Server/Atmos/Monitor/Components/AtmosMonitorComponent.cs

@@ -48,7 +48,9 @@ public sealed partial class AtmosMonitorComponent : Component
     [DataField("gasThresholds")]
     public Dictionary<Gas, AtmosAlarmThreshold>? GasThresholds;
 
-    // Stores a reference to the gas on the tile this is on.
+    /// <summary>
+    /// Stores a reference to the gas on the tile this entity is on (or the pipe network it monitors; see <see cref="MonitorsPipeNet"/>).
+    /// </summary>
     [ViewVariables]
     public GasMixture? TileGas;
 
@@ -65,4 +67,19 @@ public sealed partial class AtmosMonitorComponent : Component
     /// </summary>
     [DataField("registeredDevices")]
     public HashSet<string> RegisteredDevices = new();
+
+    /// <summary>
+    /// Specifies whether this device monitors its own internal pipe network rather than the surrounding atmosphere.
+    /// </summary>
+    /// <remarks>
+    /// If 'true', the entity will require a NodeContainerComponent with one or more PipeNodes to function.
+    /// </remarks>
+    [DataField]
+    public bool MonitorsPipeNet = false;
+
+    /// <summary>
+    /// Specifies the name of the pipe node that this device is monitoring.
+    /// </summary>
+    [DataField]
+    public string NodeNameMonitoredPipe = "monitored";
 }

Content.Server/Atmos/Monitor/Systems/AtmosMonitoringSystem.cs

@@ -4,6 +4,8 @@
 using Content.Server.Atmos.Piping.EntitySystems;
 using Content.Server.DeviceNetwork;
 using Content.Server.DeviceNetwork.Systems;
+using Content.Server.NodeContainer;
+using Content.Server.NodeContainer.Nodes;
 using Content.Server.Power.Components;
 using Content.Server.Power.EntitySystems;
 using Content.Shared.Atmos;
@@ -56,8 +58,15 @@ private void OnAtmosDeviceLeaveAtmosphere(EntityUid uid, AtmosMonitorComponent a
 
     private void OnAtmosDeviceEnterAtmosphere(EntityUid uid, AtmosMonitorComponent atmosMonitor, ref AtmosDeviceEnabledEvent args)
     {
+        if (atmosMonitor.MonitorsPipeNet)
+        {
+            atmosMonitor.TileGas = GetGasPipeAirMixture(uid, atmosMonitor);
+            return;
+        }
+
         atmosMonitor.TileGas = _atmosphereSystem.GetContainingMixture(uid, true);
     }
+
     private void OnMapInit(EntityUid uid, AtmosMonitorComponent component, MapInitEvent args)
     {
         if (component.TemperatureThresholdId != null)
@@ -206,7 +215,7 @@ private void OnAtmosUpdate(EntityUid uid, AtmosMonitorComponent component, ref A
         if (!this.IsPowered(uid, EntityManager))
             return;
 
-        if (args.Grid  == null)
+        if (args.Grid == null)
             return;
 
         // if we're not monitoring atmos, don't bother
@@ -215,9 +224,27 @@ private void OnAtmosUpdate(EntityUid uid, AtmosMonitorComponent component, ref A
             && component.GasThresholds == null)
             return;
 
+        // If monitoring a pipe network, get its most recent gas mixture
+        if (component.MonitorsPipeNet)
+            component.TileGas = GetGasPipeAirMixture(uid, component);
+
         UpdateState(uid, component.TileGas, component);
     }
 
+    private GasMixture? GetGasPipeAirMixture(EntityUid uid, AtmosMonitorComponent component)
+    {
+        if (!TryComp<NodeContainerComponent>(uid, out var nodeContainer))
+            return null;
+
+        if (nodeContainer.Nodes.TryGetValue(component.NodeNameMonitoredPipe, out var node) &&
+            node is PipeNode { } pipeNode)
+        {
+            return pipeNode.Air;
+        }
+
+        return null;
+    }
+
     // Update checks the current air if it exceeds thresholds of
     // any kind.
     //

Content.Shared/Atmos/Components/GasPipeSensorComponent.cs

@@ -0,0 +1,6 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Atmos.Components;
+
+[RegisterComponent, NetworkedComponent]
+public sealed partial class GasPipeSensorComponent : Component;

Resources/Prototypes/Entities/Structures/Specific/Atmospherics/gas_pipe_sensor.yml

@@ -0,0 +1,117 @@
+- type: entity
+  parent: GasPipeBase
+  id: GasPipeSensorAssembly
+  name: gas pipe sensor assembly
+  description: When assembled, this device will report on the characteristics of the gas in the attached pipe network. 
+  components:
+  - type: Sprite
+    sprite: Structures/Specific/Atmospherics/gas_pipe_sensor.rsi
+    drawdepth: BelowFloor
+    layers:
+    - sprite: Structures/Piping/Atmospherics/pipe.rsi
+      map: [ "enum.PipeVisualLayers.Pipe" ]
+      state: pipeStraight
+    - map: ["base"]
+      state: base
+    - map: [ "enum.ConstructionVisuals.Layer" ]
+      state: cavity 
+  - type: Appearance
+  - type: GenericVisualizer
+    visuals:
+      enum.ConstructionVisuals.Key:
+        enum.ConstructionVisuals.Layer:
+          assembly: { state: cavity }
+          wiredAssembly: { state: wires }
+  - type: Construction
+    graph: GasPipeSensor
+    node: assembly
+  - type: NodeContainer
+    nodes:
+      monitored:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: Longitudinal
+  - type: Tag
+    tags:
+      - Unstackable
+
+- type: entity
+  parent: [AirSensorBase, GasPipeSensorAssembly]
+  id: GasPipeSensor
+  name: gas pipe sensor
+  description: Reports on the status of the gas in the attached pipe network. 
+  placement:
+    mode: SnapgridCenter
+  components:
+  - type: Sprite
+    sprite: Structures/Specific/Atmospherics/gas_pipe_sensor.rsi
+    drawdepth: BelowFloor
+    layers:
+    - sprite: Structures/Piping/Atmospherics/pipe.rsi
+      map: [ "enum.PipeVisualLayers.Pipe" ]
+      state: pipeStraight
+    - map: ["base"]
+      state: base
+    - map: [ "enum.ConstructionVisuals.Layer" ]
+      state: blank
+    - map: [ "enum.PowerDeviceVisualLayers.Powered" ]
+      state: lights       
+  - type: Appearance
+  - type: GenericVisualizer
+    visuals:
+      enum.ConstructionVisuals.Key:
+        enum.ConstructionVisuals.Layer:
+          wiredSensor: { state: wires_connected }
+          sensor: { state: blank }
+      enum.PowerDeviceVisuals.Powered:
+        enum.PowerDeviceVisualLayers.Powered:
+          False: { state: blank, shader: shaded }
+          True: { state: lights, shader: unshaded }
+  - type: GasPipeSensor
+  - type: AtmosMonitor
+    monitorsPipeNet: true
+  - type: ApcPowerReceiver
+  - type: ExtensionCableReceiver
+  - type: Construction
+    graph: GasPipeSensor
+    node: sensor  
+
+- type: entity
+  parent: GasPipeSensor 
+  id: GasPipeSensorDistribution 
+  suffix: Distribution
+  components:
+  - type: Label
+    currentLabel: Distribution loop
+
+- type: entity
+  parent: GasPipeSensor 
+  id: GasPipeSensorWaste  
+  suffix: Waste
+  components:
+  - type: Label
+    currentLabel: Waste loop
+
+- type: entity
+  parent: GasPipeSensor 
+  id: GasPipeSensorMixedAir 
+  suffix: Mixed air
+  components:
+  - type: Label
+    currentLabel: Mixed air
+
+- type: entity
+  parent: GasPipeSensor 
+  id: GasPipeSensorTEGHot
+  suffix: TEG hot
+  components:
+  - type: Label
+    currentLabel: TEG hot loop
+
+- type: entity
+  parent: GasPipeSensor  
+  id: GasPipeSensorTEGCold
+  suffix: TEG cold
+  components:
+  - type: Label
+    currentLabel: TEG cold loop

Resources/Prototypes/Recipes/Construction/Graphs/utilities/gas_pipe_sensor.yml

@@ -0,0 +1,100 @@
+- type: constructionGraph
+  id: GasPipeSensor
+  start: start
+  graph:
+    - node: start
+      edges:
+        - to: assembly
+          steps:
+            - material: Steel
+              amount: 2
+              doAfter: 1
+
+    - node: assembly
+      entity: GasPipeSensorAssembly
+      actions:
+      - !type:AppearanceChange {}
+      edges:
+        - to: start
+          completed:
+            - !type:SpawnPrototype
+              prototype: SheetSteel1
+              amount: 2
+            - !type:DeleteEntity {}
+          conditions:
+            - !type:EntityAnchored
+              anchored: false
+          steps:
+            - tool: Screwing
+              doAfter: 2
+
+        - to: wiredAssembly
+          conditions:
+            - !type:EntityAnchored {}
+          steps:
+            - material: Cable
+              amount: 2
+              doAfter: 1
+
+    - node: wiredAssembly
+      actions:
+      - !type:AppearanceChange {}
+      edges:
+        - to: assembly
+          completed:
+            - !type:GivePrototype
+              prototype: CableApcStack1
+              amount: 2
+          conditions:
+            - !type:EntityAnchored
+              anchored: false
+          steps:
+            - tool: Cutting
+              doAfter: 1
+
+        - to: sensor
+          completed:
+            - !type:SetAnchor
+              value: false
+          conditions:
+          - !type:EntityAnchored {}
+          steps:
+            - tool: Screwing
+              doAfter: 2
+
+    - node: wiredSensor
+      actions:
+      - !type:AppearanceChange {}
+      edges:
+        - to: assembly
+          completed:
+            - !type:GivePrototype
+              prototype: CableApcStack1
+              amount: 2
+          conditions:
+            - !type:EntityAnchored
+              anchored: false
+          steps:
+            - tool: Cutting
+              doAfter: 1
+
+        - to: sensor
+          conditions:
+          - !type:EntityAnchored {}
+          steps:
+            - tool: Screwing
+              doAfter: 2
+
+    - node: sensor   
+      entity: GasPipeSensor
+      actions:
+        - !type:AppearanceChange {}
+        - !type:SetAnchor {}
+      edges:
+        - to: wiredSensor
+          conditions:
+            - !type:EntityAnchored
+              anchored: false
+          steps:
+            - tool: Screwing
+              doAfter: 2

Resources/Prototypes/Recipes/Construction/utilities.yml

@@ -366,6 +366,21 @@
   objectType: Structure
   canRotate: true
 
+- type: construction
+  name: gas pipe sensor
+  id: GasPipeSensor
+  graph: GasPipeSensor
+  startNode: start
+  targetNode: sensor
+  category: construction-category-structures
+  description: Reports on the status of the gas within the attached pipe network. 
+  icon:
+    sprite: Structures/Specific/Atmospherics/gas_pipe_sensor.rsi
+    state: icon
+  placementMode: SnapgridCenter
+  objectType: Structure
+  canRotate: true
+
 # ATMOS PIPES
 - type: construction
   name: gas pipe half

Resources/Textures/Structures/Specific/Atmospherics/gas_pipe_sensor.rsi/meta.json

@@ -0,0 +1,38 @@
+{
+    "version": 1,
+    "license": "CC0-1.0",
+    "copyright": "Created by chromiumboy (github) for SS14, based on the digital valve from /tg/",
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [
+        {
+            "name": "icon"
+        },
+		{
+            "name": "base"
+        },
+		{
+            "name": "cavity"
+        },
+		{
+            "name": "wires"
+        },
+		{
+            "name": "wires_connected"
+        },
+		{
+            "name": "blank"
+        },
+        {
+            "name": "lights",
+            "delays": [
+                [
+                    1.0,
+                    0.25
+                ]
+            ]
+        }
+    ]
+}