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.Mods.Common/Traits/World/AutoSave.cs

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+#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.Globalization;
+using System.IO;
+using System.Linq;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[YamlNode("AutoSave", shared: true)]
+	public class AutoSaveSettings : SettingsModule
+	{
+		[Desc("Sets the Auto-save frequency, in seconds")]
+		public int AutoSaveInterval = 0;
+
+		[Desc("Sets the AutoSave number of max files to bes saved on the file-system")]
+		public int AutoSaveMaxFileCount = 10;
+	}
+
+	[TraitLocation(SystemActors.World)]
+	[Desc("Add this trait to the world actor to enable auto-save.")]
+	public class AutoSaveInfo : TraitInfo
+	{
+		public override object Create(ActorInitializer init) { return new AutoSave(init.Self, this); }
+	}
+
+	public class AutoSave : ITick
+	{
+		const string AutoSavePattern = "autosave-";
+		const string SaveFileExtension = ".orasav";
+		int ticksUntilAutoSave;
+		int lastSaveInverval;
+		readonly bool isDisabled;
+		readonly AutoSaveSettings autoSaveSettings;
+
+		public AutoSave(Actor self, AutoSaveInfo info)
+		{
+			autoSaveSettings = self.World.GetSettings<AutoSaveSettings>();
+			ticksUntilAutoSave = GetTicksBetweenAutosaves(self);
+			lastSaveInverval = autoSaveSettings.AutoSaveInterval;
+
+			isDisabled = self.World.LobbyInfo.GlobalSettings.Dedicated || self.World.LobbyInfo.NonBotClients.Count() > 1;
+		}
+
+		void ITick.Tick(Actor self)
+		{
+			if (isDisabled || self.World.IsReplay || self.World.IsLoadingGameSave)
+				return;
+
+			if (autoSaveSettings.AutoSaveInterval == 0)
+				return;
+
+			var autoSaveFileLimit = Math.Max(autoSaveSettings.AutoSaveMaxFileCount, 3);
+			if (lastSaveInverval != autoSaveSettings.AutoSaveInterval)
+			{
+				lastSaveInverval = autoSaveSettings.AutoSaveInterval;
+				ticksUntilAutoSave = GetTicksBetweenAutosaves(self);
+			}
+
+			if (--ticksUntilAutoSave > 0)
+				return;
+
+			var oldAutoSaveFiles = GetAutoSaveFiles()
+				.OrderByDescending(f => f.CreationTime)
+				.Skip(autoSaveFileLimit - 1);
+
+			foreach (var oldAutoSaveFile in oldAutoSaveFiles)
+				oldAutoSaveFile.Delete();
+
+			var dateTime = DateTime.UtcNow.ToString("yyyy-MM-ddTHHmmssZ", CultureInfo.InvariantCulture);
+			var fileName = $"{AutoSavePattern}{dateTime}{SaveFileExtension}";
+			self.World.RequestGameSave(fileName);
+			ticksUntilAutoSave = GetTicksBetweenAutosaves(self);
+		}
+
+		static IEnumerable<FileSystemInfo> GetAutoSaveFiles()
+		{
+			var mod = Game.ModData.Manifest;
+
+			var saveFolderPath = Path.Combine(Platform.SupportDir, "Saves", mod.Id, mod.Metadata.Version);
+
+			var autoSaveDirectoryInfo = new DirectoryInfo(saveFolderPath);
+
+			if (!autoSaveDirectoryInfo.Exists)
+				return [];
+
+			return autoSaveDirectoryInfo.EnumerateFiles($"{AutoSavePattern}*{SaveFileExtension}");
+		}
+
+		int GetTicksBetweenAutosaves(Actor self)
+		{
+			return 1000 / self.World.Timestep * autoSaveSettings.AutoSaveInterval;
+		}
+	}
+}