add core scanning system

BizHawk.Emulation/Consoles/Nintendo/NES/Core.cs

@@ -8,6 +8,7 @@ using BizHawk.Emulation.CPUs.M6502;
 
 namespace BizHawk.Emulation.Consoles.Nintendo
 {
+	[CoreVersion("0.0.0.1",FriendlyName="NESHawk")]
 	public partial class NES : IEmulator
 	{
 		//hardware/state

BizHawk.Emulation/Util.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Reflection;
 using System.Diagnostics;
 using System.Collections;
 using System.Collections.Generic;
@@ -41,6 +42,45 @@ namespace BizHawk
 		}
 	}
 
+	[AttributeUsage(AttributeTargets.Class)]
+	public class CoreVersion : Attribute
+	{
+		public CoreVersion(string version)
+		{
+			this.Version = version;
+		}
+
+		public string Version { get; set; }
+		public string FriendlyName { get; set; }
+	}
+
+	public static class Introspection
+	{
+		public class CoreInfo
+		{
+			public string ClassName, Version, FriendlyName;
+		}
+
+		public static List<CoreInfo> GetCoreInfo()
+		{
+			var ret = new List<CoreInfo>();
+			//scan types in this assembly to find ones that implement boards to add them to the list
+			foreach (Type type in Assembly.GetExecutingAssembly().GetTypes())
+			{
+				var attrs = type.GetCustomAttributes(typeof(CoreVersion), true);
+				if (attrs.Length == 0) continue;
+				var cv = (CoreVersion)attrs[0];
+				var ci = new CoreInfo();
+				ci.ClassName = type.Name;
+				ci.FriendlyName = cv.FriendlyName;
+				if (string.IsNullOrEmpty(ci.FriendlyName)) ci.FriendlyName = ci.ClassName;
+				ci.Version = cv.Version;
+				ret.Add(ci);
+			}
+			return ret;
+		}
+	}
+
 	public static class Extensions
 	{
 		public static void CopyTo(this Stream src, Stream dest)

BizHawk.MultiClient/MainForm.cs

@@ -87,6 +87,12 @@ namespace BizHawk.MultiClient
 			Global.CoreInputComm = new CoreInputComm();
 			SyncCoreInputComm();
 
+			Console.WriteLine("Scanning cores:");
+			foreach (var ci in Introspection.GetCoreInfo())
+			{
+				Console.WriteLine("{0} - {1} ({2})", ci.FriendlyName, ci.Version, ci.ClassName);
+			}
+
 			Database.LoadDatabase(PathManager.GetExeDirectoryAbsolute() + "\\gamedb.txt");
 
 			SyncPresentationMode();