Give some of the most common interaction events EntityUid properties

Content.Shared/Interaction/BeforeInteract.cs

@@ -15,16 +15,31 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that triggered the interaction.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that the user used to interact.
         /// </summary>
         public IEntity Used { get; }
 
+        /// <summary>
+        ///     Entity that the user used to interact.
+        /// </summary>
+        public EntityUid UsedUid => Used.Uid;
+
         /// <summary>
         ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
         /// </summary>
         public IEntity? Target { get; }
 
+        /// <summary>
+        ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
+        /// </summary>
+        public EntityUid? TargetUid => Target?.Uid;
+
         /// <summary>
         ///     Location that the user clicked outside of their interaction range.
         /// </summary>

Content.Shared/Interaction/IActivate.cs

@@ -45,11 +45,21 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that activated the target world entity.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that was activated in the world.
         /// </summary>
         public IEntity Target { get; }
 
+        /// <summary>
+        ///     Entity that was activated in the world.
+        /// </summary>
+        public EntityUid TargetUid => Target.Uid;
+
         public ActivateInWorldEvent(IEntity user, IEntity target)
         {
             User = user;

Content.Shared/Interaction/IAfterInteract.cs

@@ -56,16 +56,31 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that triggered the interaction.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that the user used to interact.
         /// </summary>
         public IEntity Used { get; }
 
+        /// <summary>
+        ///     Entity that the user used to interact.
+        /// </summary>
+        public EntityUid UsedUid => Used.Uid;
+
         /// <summary>
         ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
         /// </summary>
         public IEntity? Target { get; }
 
+        /// <summary>
+        ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
+        /// </summary>
+        public EntityUid? TargetUid => Target?.Uid;
+
         /// <summary>
         ///     Location that the user clicked outside of their interaction range.
         /// </summary>

Content.Shared/Interaction/IDropped.cs

@@ -39,11 +39,21 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that dropped the item.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Item that was dropped.
         /// </summary>
         public IEntity Dropped { get; }
 
+        /// <summary>
+        ///     Item that was dropped.
+        /// </summary>
+        public EntityUid DroppedUid => Dropped.Uid;
+
         /// <summary>
         ///     If the item was dropped intentionally.
         /// </summary>

Content.Shared/Interaction/IInteractHand.cs

@@ -42,11 +42,21 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that triggered the interaction.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that was interacted on.
         /// </summary>
         public IEntity Target { get; }
 
+        /// <summary>
+        ///     Entity that was interacted on.
+        /// </summary>
+        public EntityUid TargetUid => Target.Uid;
+
         public InteractHandEvent(IEntity user, IEntity target)
         {
             User = user;

Content.Shared/Interaction/IInteractUsing.cs

@@ -55,16 +55,31 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that triggered the interaction.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that the user used to interact.
         /// </summary>
         public IEntity Used { get; }
 
+        /// <summary>
+        ///     Entity that the user used to interact.
+        /// </summary>
+        public EntityUid UsedUid => Used.Uid;
+
         /// <summary>
         ///     Entity that was interacted on.
         /// </summary>
         public IEntity Target { get; }
 
+        /// <summary>
+        ///     Entity that was interacted on.
+        /// </summary>
+        public EntityUid TargetUid => Target.Uid;
+
         /// <summary>
         ///     The original location that was clicked by the user.
         /// </summary>

Content.Shared/Interaction/IRangedInteract.cs

@@ -46,16 +46,31 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity that triggered the interaction.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Entity that the user used to interact.
         /// </summary>
         public IEntity Used { get; }
 
+        /// <summary>
+        ///     Entity that the user used to interact.
+        /// </summary>
+        public EntityUid UsedUid => Used.Uid;
+
         /// <summary>
         ///     Entity that was interacted on.
         /// </summary>
         public IEntity Target { get; }
 
+        /// <summary>
+        ///     Entity that was interacted on.
+        /// </summary>
+        public EntityUid TargetUid => Target.Uid;
+
         /// <summary>
         ///     Location that the user clicked outside of their interaction range.
         /// </summary>

Content.Shared/Interaction/IUse.cs

@@ -41,11 +41,21 @@ namespace Content.Shared.Interaction
         /// </summary>
         public IEntity User { get; }
 
+        /// <summary>
+        ///     Entity holding the item in their hand.
+        /// </summary>
+        public EntityUid UserUid => User.Uid;
+
         /// <summary>
         ///     Item that was used.
         /// </summary>
         public IEntity Used { get; }
 
+        /// <summary>
+        ///     Item that was used.
+        /// </summary>
+        public EntityUid UsedUid => Used.Uid;
+
         public UseInHandEvent(IEntity user, IEntity used)
         {
             User = user;