static uint CreateReferenceHelper(GenericRCOLResource rcol, IResourceKey rk)
{
int i = rcol.ChunkEntries.FindIndex(x => x.TGIBlock.Equals(rk));
if (i < 0)
{
i = rcol.Resources.FindIndex(x => x.Equals(rk));
return(i < 0 ? 0 : (uint)(i + 1) | 0x30000000);
}
else
{
i++;
return(i < rcol.publicChunks ? (uint)i : (uint)i | 0x10000000);
}
}
/// <summary>
/// Return the RCOL block indexed by the given <see cref="ChunkReference"/>.
/// </summary>
/// <param name="rcol">The RCOL resource to inspect.</param>
/// <param name="reference">The <see cref="ChunkReference"/> to look up.</param>
/// <returns>The RCOL block indexed by the given <see cref="ChunkReference"/>.</returns>
/// <exception cref="NotImplementedException">The <paramref name="reference"/> passed
/// does not have a supported <see cref="ReferenceType"/> value.</exception>
/// <remarks>Only <see cref="ReferenceType.Public"/> and <see cref="ReferenceType.Private"/>
/// are "sane" types.</remarks>
public static IRCOLBlock GetBlock(GenericRCOLResource rcol, ChunkReference reference)
{
if (reference.chunkReference == 0)
{
return(null);
}
switch (reference.RefType)
{
case ReferenceType.Public:
return(rcol.ChunkEntries[reference.TGIBlockIndex].RCOLBlock);
case ReferenceType.Private:
return(rcol.ChunkEntries[reference.TGIBlockIndex + rcol.PublicChunks].RCOLBlock);
}
throw new NotImplementedException(String.Format("Reference Type {0} is not supported.", reference.RefType));
}
/// <summary>
/// Determine the <see cref="ChunkReference"/> value for the given <see cref="IResourceKey"/> value.
/// </summary>
/// <param name="rcol">The RCOL resource to inspect.</param>
/// <param name="rk">The <see cref="IResourceKey"/> to encode.</param>
/// <returns>The <see cref="ChunkReference"/> value for the given <see cref="IResourceKey"/> value.</returns>
/// <remarks>Note that the value will be zero (i.e. indicating an invalid entry) if the <paramref name="rk"/>
/// value supplied is not found either in the <see cref="GenericRCOLResource.ChunkEntries"/> or
/// <see cref="GenericRCOLResource.Resources"/> lists.</remarks>
public static ChunkReference CreateReference(GenericRCOLResource rcol, IResourceKey rk)
{
return(new ChunkReference(0, null, CreateReferenceHelper(rcol, rk)));
}
