Predict vending machine UI (#33412)

Content.Shared/Advertise/Components/SpeakOnUIClosedComponent.cs

@@ -0,0 +1,38 @@
+using Content.Shared.Advertise.Systems;
+using Content.Shared.Dataset;
+using Robust.Shared.GameStates;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared.Advertise.Components;
+
+/// <summary>
+/// Causes the entity to speak using the Chat system when its ActivatableUI is closed, optionally
+/// requiring that a Flag be set as well.
+/// </summary>
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState, Access(typeof(SharedSpeakOnUIClosedSystem))]
+public sealed partial class SpeakOnUIClosedComponent : Component
+{
+    /// <summary>
+    /// The identifier for the dataset prototype containing messages to be spoken by this entity.
+    /// </summary>
+    [DataField(required: true)]
+    public ProtoId<LocalizedDatasetPrototype> Pack { get; private set; }
+
+    /// <summary>
+    /// Is this component active? If false, no messages will be spoken.
+    /// </summary>
+    [DataField]
+    public bool Enabled = true;
+
+    /// <summary>
+    /// Should messages be spoken only if the <see cref="Flag"/> is set (true), or every time the UI is closed (false)?
+    /// </summary>
+    [DataField]
+    public bool RequireFlag = true;
+
+    /// <summary>
+    /// State variable only used if <see cref="RequireFlag"/> is true. Set with <see cref="SpeakOnUIClosedSystem.TrySetFlag"/>.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public bool Flag;
+}