Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Game/Server/MapStatusCache.cs

@@ -0,0 +1,106 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using OpenRA.Network;
+
+namespace OpenRA.Server
+{
+	public interface ILintServerMapPass { void Run(Action<string> emitError, Action<string> emitWarning, ModData modData, MapPreview map, Ruleset mapRules); }
+
+	public class MapStatusCache
+	{
+		readonly Dictionary<MapPreview, Session.MapStatus> cache = [];
+		readonly Action<string, Session.MapStatus> onStatusChanged;
+		readonly bool enableRemoteLinting;
+		readonly ModData modData;
+
+		public MapStatusCache(ModData modData, Action<string, Session.MapStatus> onStatusChanged, bool enableRemoteLinting)
+		{
+			this.modData = modData;
+			this.enableRemoteLinting = enableRemoteLinting;
+			this.onStatusChanged = onStatusChanged;
+		}
+
+		void RunLintTests(MapPreview map, Ruleset rules)
+		{
+			var status = cache[map];
+			var failed = false;
+
+			void OnLintFailure(string message)
+			{
+				Log.Write("server", $"Map {map.Title} failed lint with error: {message}");
+				failed = true;
+			}
+
+			void OnLintWarning(string _) { }
+
+			foreach (var customMapPassType in modData.ObjectCreator.GetTypesImplementing<ILintServerMapPass>())
+			{
+				try
+				{
+					var customMapPass = (ILintServerMapPass)modData.ObjectCreator.CreateBasic(customMapPassType);
+					customMapPass.Run(OnLintFailure, OnLintWarning, modData, map, rules);
+				}
+				catch (Exception e)
+				{
+					OnLintFailure(e.ToString());
+				}
+			}
+
+			status &= ~Session.MapStatus.Validating;
+			status |= failed ? Session.MapStatus.Incompatible : Session.MapStatus.Playable;
+
+			cache[map] = status;
+			onStatusChanged?.Invoke(map.Uid, status);
+		}
+
+		public Session.MapStatus this[MapPreview map]
+		{
+			get
+			{
+				if (cache.TryGetValue(map, out var status))
+					return status;
+
+				Ruleset rules = null;
+				try
+				{
+					rules = map.LoadRuleset();
+
+					// Locally installed maps are assumed to not require linting
+					status = enableRemoteLinting && map.Status != MapStatus.Available ? Session.MapStatus.Validating : Session.MapStatus.Playable;
+					if (map.DefinesUnsafeCustomRules())
+						status |= Session.MapStatus.UnsafeCustomRules;
+				}
+				catch (Exception e)
+				{
+					Log.Write("server", $"Failed to load rules for `{map.Title}` with error: {e.Message}");
+					status = Session.MapStatus.Incompatible;
+				}
+
+				if (map.Players.Players.Count > MapPlayers.MaximumPlayerCount)
+				{
+					Log.Write("server", $"Failed to load `{map.Title}`: Player count exceeds maximum ({map.Players.Players.Count}/{MapPlayers.MaximumPlayerCount}).");
+					status = Session.MapStatus.Incompatible;
+				}
+
+				cache[map] = status;
+
+				if ((status & Session.MapStatus.Validating) != 0)
+					ThreadPool.QueueUserWorkItem(_ => RunLintTests(map, rules));
+
+				return status;
+			}
+		}
+	}
+}