/// <summary>
/// Enumerates over the DOOM 2 maps.
/// </summary>
/// <param name="wadFile">The IWAD file.</param>
/// <returns>The list of maps.</returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="wadFile" /> is <see langword="null" />.
/// </exception>
/// <exception cref="FormatException">
/// <paramref name="wadFile" /> has an invalid value in <see cref="IWADFile.Format" />.
/// </exception>
public static IEnumerable<IWADFile> EnumerateDOOM2Maps(this IWADFile wadFile)
{
if (wadFile == null)
{
throw new ArgumentNullException("wadFile");
}
if (wadFile.Format != WADFormat.Default)
{
throw new FormatException("wadFile");
}
using (var stream = wadFile.GetStream())
{
ILump mapLump = null;
IList<ILump> lumpsOfMap = null;
foreach (var lump in wadFile.EnumerateLumps())
{
if ((lump.Name ?? string.Empty).ToUpper().Trim().StartsWith("MAP"))
{
if (lumpsOfMap != null)
{
using (var builder = new WADFileBuilder(true))
{
builder.AddRange(lumpsOfMap);
yield return builder.Build(mapLump.Name, WADFormat.Default);
}
}
mapLump = lump;
lumpsOfMap = new List<ILump>();
continue;
}
if (mapLump == null)
{
continue;
}
lumpsOfMap.Add(lump);
}
}
}
/// <summary>
/// Enumerates over the DOOM 2 maps.
/// </summary>
/// <param name="wadFile">The IWAD file.</param>
/// <returns>The list of maps.</returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="wadFile" /> is <see langword="null" />.
/// </exception>
/// <exception cref="FormatException">
/// <paramref name="wadFile" /> has an invalid value in <see cref="IWADFile.Format" />.
/// </exception>
public static IEnumerable <IWADFile> EnumerateDOOM2Maps(this IWADFile wadFile)
{
if (wadFile == null)
{
throw new ArgumentNullException("wadFile");
}
if (wadFile.Format != WADFormat.Default)
{
throw new FormatException("wadFile");
}
using (var stream = wadFile.GetStream())
{
ILump mapLump = null;
IList <ILump> lumpsOfMap = null;
foreach (var lump in wadFile.EnumerateLumps())
{
if ((lump.Name ?? string.Empty).ToUpper().Trim().StartsWith("MAP"))
{
if (lumpsOfMap != null)
{
using (var builder = new WADFileBuilder(true))
{
builder.AddRange(lumpsOfMap);
yield return(builder.Build(mapLump.Name, WADFormat.Default));
}
}
mapLump = lump;
lumpsOfMap = new List <ILump>();
continue;
}
if (mapLump == null)
{
continue;
}
lumpsOfMap.Add(lump);
}
}
}