BizHawk/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MapperPropAttribute.cs

64 lines
1.5 KiB
C#

using System;
using System.IO;
using System.Linq;
namespace BizHawk.Emulation.Cores.Nintendo.NES
{
[AttributeUsage(AttributeTargets.Field)]
public sealed class MapperPropAttribute : Attribute
{
}
internal static class AutoMapperProps
{
public static void Populate(INesBoard board, NES.NESSyncSettings settings)
{
var fields = board.GetType().GetFields();
foreach (var field in fields)
{
var attrib = field.GetCustomAttributes(typeof(MapperPropAttribute), false).OfType<MapperPropAttribute>().SingleOrDefault();
if (attrib == null)
{
continue;
}
string name = field.Name;
if (!settings.BoardProperties.ContainsKey(name))
{
settings.BoardProperties.Add(name, (string)Convert.ChangeType(field.GetValue(board), typeof(string)));
}
}
}
public static void Apply(INesBoard board)
{
var fields = board.GetType().GetFields();
foreach (var field in fields)
{
var attribs = field.GetCustomAttributes(false);
foreach (var attrib in attribs)
{
if (attrib is MapperPropAttribute)
{
string name = field.Name;
if (board.InitialRegisterValues.TryGetValue(name, out var value))
{
try
{
field.SetValue(board, Convert.ChangeType(value, field.FieldType));
}
catch (Exception e) when (e is InvalidCastException || e is FormatException || e is OverflowException)
{
throw new InvalidDataException("Auto Mapper Properties were in a bad format!", e);
}
}
break;
}
}
}
}
}
}