add signal valve (#14830)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Server/Atmos/Piping/Binary/EntitySystems/SignalControlledValveSystem.cs

@@ -0,0 +1,43 @@
+using Content.Server.Atmos.Piping.Binary.Components;
+using Content.Server.MachineLinking.Events;
+using Content.Server.MachineLinking.System;
+
+namespace Content.Server.Atmos.Piping.Binary.EntitySystems;
+
+public sealed class SignalControlledValveSystem : EntitySystem
+{
+    [Dependency] private readonly SignalLinkerSystem _signal = default!;
+    [Dependency] private readonly GasValveSystem _valve = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<SignalControlledValveComponent, ComponentInit>(OnInit);
+        SubscribeLocalEvent<SignalControlledValveComponent, SignalReceivedEvent>(OnSignalReceived);
+    }
+
+    private void OnInit(EntityUid uid, SignalControlledValveComponent comp, ComponentInit args)
+    {
+        _signal.EnsureReceiverPorts(uid, comp.OpenPort, comp.ClosePort, comp.TogglePort);
+    }
+
+    private void OnSignalReceived(EntityUid uid, SignalControlledValveComponent comp, SignalReceivedEvent args)
+    {
+        if (!TryComp<GasValveComponent>(uid, out var valve))
+            return;
+
+        if (args.Port == comp.OpenPort)
+        {
+            _valve.Set(uid, valve, true);
+        }
+        else if (args.Port == comp.ClosePort)
+        {
+            _valve.Set(uid, valve, false);
+        }
+        else if (args.Port == comp.TogglePort)
+        {
+            _valve.Toggle(uid, valve);
+        }
+    }
+}