action refactor proper ecs edition (#27422)

Content.Shared/Actions/Components/EntityTargetActionComponent.cs

@@ -0,0 +1,48 @@
+using Content.Shared.Actions;
+using Content.Shared.Whitelist;
+using Robust.Shared.GameStates;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.Actions.Components;
+
+/// <summary>
+/// Used on action entities to define an action that triggers when targeting an entity.
+/// If used with <see cref="WorldTargetActionComponent"/>, the event here can be set to null and <c>Optional</c> should be set.
+/// Then <see cref="WorldActionEvent"> can have <c>TargetEntity</c> optionally set to the client's hovered entity, if it is valid.
+/// Using entity-world targeting like this will always give coords, but doesn't need to have an entity.
+/// </summary>
+/// <remarks>
+/// Requires <see cref="TargetActionComponent"/>.
+/// </remarks>
+[RegisterComponent, NetworkedComponent, Access(typeof(SharedActionsSystem))]
+[EntityCategory("Actions")]
+[AutoGenerateComponentState]
+public sealed partial class EntityTargetActionComponent : Component
+{
+    /// <summary>
+    /// The local-event to raise when this action is performed.
+    /// If this is null entity-world targeting is done as specified on the component doc.
+    /// </summary>
+    [DataField, NonSerialized]
+    public EntityTargetActionEvent? Event;
+
+    /// <summary>
+    /// Determines which entities are valid targets for this action.
+    /// </summary>
+    /// <remarks>No whitelist check when null.</remarks>
+    [DataField, AutoNetworkedField]
+    public EntityWhitelist? Whitelist;
+
+    /// <summary>
+    /// Determines which entities cannot be valid targets for this action, even if matching the whitelist.
+    /// </summary>
+    /// <remarks>No blacklist check when null.</remarks>
+    [DataField, AutoNetworkedField]
+    public EntityWhitelist? Blacklist;
+
+    /// <summary>
+    /// Whether this action considers the user as a valid target entity when using this action.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public bool CanTargetSelf = true;
+}