Add pick random system (#15409)

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

Content.Server/Storage/Components/PickRandomComponent.cs

@@ -0,0 +1,31 @@
+using Content.Server.Storage.EntitySystems;
+using Content.Shared.Whitelist;
+
+namespace Content.Server.Storage.Components;
+
+/// <summary>
+/// Adds a verb to pick a random item from a container.
+/// Only picks items that match the whitelist.
+/// </summary>
+[RegisterComponent]
+[Access(typeof(PickRandomSystem))]
+public sealed class PickRandomComponent : Component
+{
+    /// <summary>
+    /// Whitelist for potential picked items.
+    /// </summary>
+    [DataField("whitelist"), ViewVariables(VVAccess.ReadWrite)]
+    public EntityWhitelist? Whitelist;
+
+    /// <summary>
+    /// Locale id for the pick verb text.
+    /// </summary>
+    [DataField("verbText"), ViewVariables(VVAccess.ReadWrite)]
+    public string VerbText = "comp-pick-random-verb-text";
+
+    /// <summary>
+    /// Locale id for the empty storage message.
+    /// </summary>
+    [DataField("emptyText"), ViewVariables(VVAccess.ReadWrite)]
+    public string EmptyText = "comp-pick-random-empty";
+}