ninja 2 electric boogaloo (#15534)

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

Content.Shared/Ninja/Components/EmagProviderComponent.cs

@@ -0,0 +1,28 @@
+using Content.Shared.Ninja.Systems;
+using Content.Shared.Tag;
+using Content.Shared.Whitelist;
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Shared.Ninja.Components;
+
+/// <summary>
+/// Component for emagging things on click.
+/// No charges but checks against a whitelist.
+/// </summary>
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+[Access(typeof(EmagProviderSystem))]
+public sealed partial class EmagProviderComponent : Component
+{
+    /// <summary>
+    /// The tag that marks an entity as immune to emagging.
+    /// </summary>
+    [DataField("emagImmuneTag", customTypeSerializer: typeof(PrototypeIdSerializer<TagPrototype>))]
+    public string EmagImmuneTag = "EmagImmune";
+
+    /// <summary>
+    /// Whitelist that entities must be on to work.
+    /// </summary>
+    [DataField("whitelist"), ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
+    public EntityWhitelist? Whitelist = null;
+}