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/Network/Handshake.cs

@@ -0,0 +1,90 @@
+#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.Collections.Generic;
+using System.Linq;
+
+namespace OpenRA.Network
+{
+	public class HandshakeRequest
+	{
+		public string Mod;
+		public string Version;
+		public string AuthToken;
+
+		public static HandshakeRequest Deserialize(string data, string name)
+		{
+			var handshake = new HandshakeRequest();
+			FieldLoader.Load(handshake, MiniYaml.FromString(data, name).First().Value);
+			return handshake;
+		}
+
+		public string Serialize()
+		{
+			var data = new List<MiniYamlNode> { new("Handshake", FieldSaver.Save(this)) };
+			return data.WriteToString();
+		}
+	}
+
+	public class HandshakeResponse
+	{
+		public string Mod;
+		public string Version;
+		public string Password;
+
+		// Default value is hardcoded to 7 so that newer servers
+		// (which define OrdersProtocol > 7) can detect older clients
+		public int OrdersProtocol = 7;
+
+		// For player authentication
+		public string Fingerprint;
+		public string AuthSignature;
+
+		[FieldLoader.Ignore]
+		public Session.Client Client;
+
+		public static HandshakeResponse Deserialize(string data, string name)
+		{
+			var handshake = new HandshakeResponse
+			{
+				Client = new Session.Client()
+			};
+
+			var ys = MiniYaml.FromString(data, name);
+			foreach (var y in ys)
+			{
+				switch (y.Key)
+				{
+					case "Handshake":
+						FieldLoader.Load(handshake, y.Value);
+						break;
+					case "Client":
+						FieldLoader.Load(handshake.Client, y.Value);
+						break;
+				}
+			}
+
+			return handshake;
+		}
+
+		public string Serialize()
+		{
+			var data = new List<MiniYamlNode>
+			{
+				new("Handshake", null,
+					new[] { "Mod", "Version", "Password", "Fingerprint", "AuthSignature", "OrdersProtocol" }.Select(p => FieldSaver.SaveField(this, p)).ToList()),
+				new("Client", FieldSaver.Save(Client))
+			};
+
+			return data.WriteToString();
+		}
+	}
+}