private void Read(Stream stream)
{
// don't use using{}, we want to maintain the stream open. reader/writers will automatically close the stream when done in an using.
var reader = new EndianReader(stream, EndianFormat.LittleEndian);
stream.Position = 0;
var addresses = new List <uint>();
var sizes = new List <uint>();
var dataContext = new DataSerializationContext(reader);
var deserializer = new TagDeserializer(Version);
Header = deserializer.Deserialize <ResourceCacheHaloOnlineHeader>(dataContext);
reader.SeekTo(Header.ResourceTableOffset);
// read all resource offsets
if (Header.ResourceCount == 0)
{
return;
}
for (var i = 0; i < Header.ResourceCount; i++)
{
var address = reader.ReadUInt32();
if (!addresses.Contains(address) && (address != uint.MaxValue))
{
addresses.Add(address);
}
Resources.Add(new Resource {
Offset = address
});
}
// compute chunk sizes
addresses.Sort((a, b) => a.CompareTo(b));
for (var i = 0; i < addresses.Count - 1; i++)
{
sizes.Add(addresses[i + 1] - addresses[i]);
}
sizes.Add(Header.ResourceTableOffset - addresses.Last());
foreach (var resource in Resources)
{
if (resource.Offset == uint.MaxValue)
{
continue;
}
resource.ChunkSize = sizes[addresses.IndexOf(resource.Offset)];
}
}
public ResourceCacheHaloOnline(CacheVersion version)
{
Version = version;
Resources = new List <Resource>();
Header = new ResourceCacheHaloOnlineHeader
{
ResourceTableOffset = 0x20,
CreationTime = 0x01D0631BCC92931B
};
}
private void CreateEmptyResourceCache(Stream stream)
{
Header = new ResourceCacheHaloOnlineHeader
{
ResourceTableOffset = 0x20,
CreationTime = 0x01D0631BCC92931B
};
stream.Position = 0;
var writer = new EndianWriter(stream, EndianFormat.LittleEndian);
var dataContext = new DataSerializationContext(writer);
var serializer = new TagSerializer(CacheVersion.HaloOnline106708);
serializer.Serialize(dataContext, Header);
stream.Position = 0;
}