Add emp artifact effect (#14493)

Content.Server/Xenoarchaeology/XenoArtifacts/Effects/Systems/EmpArtifactSystem.cs

@@ -0,0 +1,21 @@
+using Content.Server.Emp;
+using Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Components;
+using Content.Server.Xenoarchaeology.XenoArtifacts.Events;
+
+namespace Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Systems;
+
+public sealed class EmpArtifactSystem : EntitySystem
+{
+    [Dependency] private readonly EmpSystem _emp = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        SubscribeLocalEvent<EmpArtifactComponent, ArtifactActivatedEvent>(OnActivate);
+    }
+
+    private void OnActivate(EntityUid uid, EmpArtifactComponent component, ArtifactActivatedEvent args)
+    {
+        _emp.EmpPulse(Transform(uid).MapPosition, component.Range, component.EnergyConsumption);
+    }
+}