/// <summary>Read the resource identifier.</summary>
/// <param name="reader"></param>
/// <param name="version"></param>
/// <param name="type"></param>
public ResourceId(BinaryReader reader, ResourceMapVersion version, ResourceType?type = null)
{
Version = version;
if (version == ResourceMapVersion.Sci0)
{
short a = reader.ReadInt16();
int b = reader.ReadInt32();
if (type.HasValue)
{
throw new InvalidDataException();
}
FullType = (ResourceType)(a >> 11);
Id = a & 2047;
Offset = b & ~(~0 << 26);
Page = (b >> 26) & 63;
if (a == -1 && b == -1)
{
FullType = ResourceType.End;
}
}
else if (version == ResourceMapVersion.Sci1 || version == ResourceMapVersion.Sci2)
{
FullType = type.Value;
Id = reader.ReadUInt16();
int b = reader.ReadInt32();
Offset = b & ~(~0 << 28);
Page = (b >> 28) & 15;
}
else
{
throw new NotImplementedException();
}
}
internal ResourceMap(AssetManager manager, AssetLoader loader)
: base(manager, loader.Name)
{
var reader = loader.Reader;
Path = loader.Name;
FileManager = loader.FileManager;
Version = DetectVersion(loader);
Dictionary <ResourceType, FolderAsset> folders = new Dictionary <ResourceType, FolderAsset>();
using (reader) {
if (Version == ResourceMapVersion.Sci0)
{
// Simple list of entries of type (short typeAndIndex, int offsetAndPage), terminated with a (-1, -1)
while (true)
{
ResourceId id = new ResourceId(reader, Version);
if (id.IsEnd)
{
break;
}
AddResource(id, folders);
}
}
else if (Version == ResourceMapVersion.Sci1)
{
List <KeyValuePair <ResourceType, int> > types = new List <KeyValuePair <ResourceType, int> >();
while (true)
{
ResourceType type = (ResourceType)reader.ReadByte();
int offset = reader.ReadUInt16();
types.Add(new KeyValuePair <ResourceType, int>(type == ResourceType.End ? type : (ResourceType)((int)type & 0x7F), offset));
if (type == ResourceType.End)
{
break;
}
}
for (int typeIndex = 0; typeIndex < types.Count - 1; typeIndex++)
{
ResourceType type = types[typeIndex].Key;
int end = types[typeIndex + 1].Value;
while (reader.BaseStream.Position < end)
{
ResourceId id = new ResourceId(reader, Version, type);
AddResource(id, folders);
}
}
}
else if (Version == ResourceMapVersion.Sci2)
{
List <KeyValuePair <ResourceType, int> > types = new List <KeyValuePair <ResourceType, int> >();
while (true)
{
ResourceType type = (ResourceType)reader.ReadByte();
int offset = reader.ReadUInt16();
types.Add(new KeyValuePair <ResourceType, int>(type, offset));
if (type == ResourceType.End)
{
break;
}
}
Unknowns.ReadInt32s(reader, 1, "Post offsets");
for (int typeIndex = 0; typeIndex < types.Count - 1; typeIndex++)
{
ResourceType type = types[typeIndex].Key;
int offset = types[typeIndex].Value;
int end = types[typeIndex + 1].Value;
if ((end - offset) % 6 != 0)
{
throw new InvalidDataException();
}
int count = (end - offset) / 6;
for (int index = 0; index < count; index++)
{
ResourceId id = new ResourceId(reader, Version, type);
AddResource(id, folders);
}
}
}
else
{
throw new NotImplementedException();
}
}
SortChildrenRecursively();
}
