PipeHeaterComponent (#3443)

* PipeHeaterComponent

Heater rsi

Heater prototype

* Client ignore

Content.Server/GameObjects/Components/Atmos/Piping/PipeHeaterComponent.cs

@@ -0,0 +1,66 @@
+#nullable enable
+using Content.Server.GameObjects.Components.NodeContainer;
+using Content.Server.GameObjects.Components.NodeContainer.Nodes;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Log;
+using Robust.Shared.ViewVariables;
+using System.Linq;
+
+namespace Content.Server.GameObjects.Components.Atmos.Piping
+{
+    /// <summary>
+    ///     Placeholder component for adjusting the temperature of gas in pipes.
+    /// </summary>
+    [RegisterComponent]
+    public class PipeHeaterComponent : Component
+    {
+        public override string Name => "PipeHeater";
+
+        [ViewVariables]
+        private PipeNode? _heaterPipe;
+
+        [ViewVariables(VVAccess.ReadWrite)]
+        private float TargetTemperature { get; set; }
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            Owner.EnsureComponentWarn<PipeNetDeviceComponent>();
+            SetPipe();
+        }
+
+        public override void HandleMessage(ComponentMessage message, IComponent? component)
+        {
+            base.HandleMessage(message, component);
+            switch (message)
+            {
+                case PipeNetUpdateMessage:
+                    Update();
+                    break;
+            }
+        }
+
+        public void Update()
+        {
+            if (_heaterPipe == null)
+                return;
+
+            _heaterPipe.Air.Temperature = TargetTemperature;
+        }
+
+        private void SetPipe()
+        {
+            if (!Owner.TryGetComponent<NodeContainerComponent>(out var container))
+            {
+                Logger.Error($"{nameof(PipeHeaterComponent)} on {Owner?.Prototype?.ID}, Uid {Owner?.Uid} did not have a {nameof(NodeContainerComponent)}.");
+                return;
+            }
+            _heaterPipe = container.Nodes.OfType<PipeNode>().FirstOrDefault();
+            if (_heaterPipe == null)
+            {
+                Logger.Error($"{nameof(PipeHeaterComponent)} on {Owner?.Prototype?.ID}, Uid {Owner?.Uid} could not find compatible {nameof(PipeNode)}s on its {nameof(NodeContainerComponent)}.");
+                return;
+            }
+        }
+    }
+}