upd

Code/UI/ChatHistory.cs

@@ -0,0 +1,13 @@
+using System.Collections.Generic;
+
+namespace Sandbox;
+
+public static class ChatHistory
+{
+	public static List<Chat.Entry> Entries { get; private set; } = new();
+
+	public static void Add(ulong steamid, string author, string message)
+	{
+		Entries.Add(new Chat.Entry(steamid, author, message, 0.0f));
+	}
+}

Code/UI/TeleportMazeButton.cs

@@ -0,0 +1,55 @@
+using Sandbox.Gravity;
+
+namespace Sandbox.UI;
+
+[Icon( "skip_next" )]
+public sealed class TeleportMazeButton : InteractionButton
+{
+	[Property] public Maze Maze { get; set; }
+	[Property] public InteractTeleporter Teleporter { get; set; }
+
+	int maxAttempts = 30;
+
+	public override bool Press( IPressable.Event e )
+	{
+		base.Press( e );
+		if ( Maze.IsValid() )
+		{
+			Maze.RpcRequestMaze();
+		}
+
+		DoTeleport();
+		return true;
+	}
+
+	private async void DoTeleport()
+	{
+		int attempt = 0;
+
+		if ( Maze.IsValid() )
+		{
+			while ( !Maze.IsReady && attempt < maxAttempts )
+			{
+				await Task.Delay( 1000 );
+				attempt++;
+			}
+
+			if ( Maze.IsReady )
+			{
+				// Teleporter.TeleportAll();
+				foreach ( var player in Teleporter.Players )
+				{
+					Teleporter.Teleport( player, Maze.GetRandomCellPosition() );
+				}
+			}
+			else
+			{
+				Log.Warning( "Maze was not ready in time. Teleport aborted." );
+			}
+		}
+		else
+		{
+			Teleporter.TeleportAll();
+		}
+	}
+}