Add emp artifact effect (#14493)

Content.Server/Emp/EmpSystem.cs

@@ -30,7 +30,7 @@ public sealed class EmpSystem : EntitySystem
 
     private void HandleEmpTrigger(EntityUid uid, EmpOnTriggerComponent comp, TriggerEvent args)
     {
-        EmpPulse(Transform(uid).Coordinates.ToMap(EntityManager), comp.Range, comp.EnergyConsumption);
+        EmpPulse(Transform(uid).MapPosition, comp.Range, comp.EnergyConsumption);
         args.Handled = true;
     }
 }

Content.Server/Xenoarchaeology/XenoArtifacts/Effects/Components/EmpArtifactComponent.cs

@@ -0,0 +1,17 @@
+using Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Systems;
+
+namespace Content.Server.Xenoarchaeology.XenoArtifacts.Effects.Components;
+
+/// <summary>
+/// Artifact that EMP
+/// </summary>
+[RegisterComponent]
+[Access(typeof(EmpArtifactSystem))]
+public sealed class EmpArtifactComponent : Component
+{
+    [DataField("range"), ViewVariables(VVAccess.ReadWrite)]
+    public float Range = 4f;
+
+    [DataField("energyConsumption"), ViewVariables(VVAccess.ReadWrite)]
+    public float EnergyConsumption = 1000000;
+}

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);
+    }
+}

Resources/Prototypes/XenoArch/Effects/normal_effects.yml

@@ -495,3 +495,10 @@
     maxSpawns: 1
     spawns:
     - id: Singularity
+
+- type: artifactEffect
+  id: EffectEmp
+  targetDepth: 3
+  effectHint: artifact-effect-hint-electrical-interference
+  components:
+  - type: EmpArtifact