Replay client (#15001)

Content.Client/Replay/UI/ReplayGhostState.cs

@@ -0,0 +1,40 @@
+using Content.Client.UserInterface.Systems.Actions.Widgets;
+using Content.Client.UserInterface.Systems.Alerts.Widgets;
+using Content.Client.UserInterface.Systems.Ghost.Widgets;
+using Content.Client.UserInterface.Systems.Hotbar.Widgets;
+
+namespace Content.Client.Replay.UI;
+
+/// <summary>
+/// Gameplay state when moving around a replay as a ghost.
+/// </summary>
+public sealed class ReplayGhostState : ReplaySpectateEntityState
+{
+    protected override void Startup()
+    {
+        base.Startup();
+
+        var screen = UserInterfaceManager.ActiveScreen;
+        if (screen == null)
+            return;
+
+        screen.ShowWidget<GhostGui>(false);
+        screen.ShowWidget<ActionsBar>(false);
+        screen.ShowWidget<AlertsUI>(false);
+        screen.ShowWidget<HotbarGui>(false);
+    }
+
+    protected override void Shutdown()
+    {
+        var screen = UserInterfaceManager.ActiveScreen;
+        if (screen != null)
+        {
+            screen.ShowWidget<GhostGui>(true);
+            screen.ShowWidget<ActionsBar>(true);
+            screen.ShowWidget<AlertsUI>(true);
+            screen.ShowWidget<HotbarGui>(true);
+        }
+
+        base.Shutdown();
+    }
+}