// Iterate through all ranges of ExDFile under this ExH and execute given iterator function on each of them.
// This does not iterate through language so the language code should be included in the fileNameFormat if applicable!
public void Iterate(SqCache cache, string directoryName, string fileNameFormat, Action <ExDFile> iterator)
{
// Iterate through available ranges.
for (int i = 0; i < Ranges.Length; i++)
{
ExHRange range = Ranges[i];
iterator(new ExDFile(cache.GetFile(directoryName, string.Format(fileNameFormat, range.Start)), this));
Program.ReportProgress(((double)i + 1) / Ranges.Length);
}
}
// Decode ExH from the raw data and create new ExH instance.
public ExHFile(SqFile sqFile)
{
// Read the SqFile raw data.
byte[] data = sqFile.ReadData();
// Quit if no data is available.
if (data == null || data.Length == 0)
{
return;
}
// Some big endian values from fixed offset.
FixedSizeDataLength = ToUInt16(data, 0x6, true);
Variant = ToUInt16(data, 0x10, true);
// Counts for various entries.
ushort columnCount = ToUInt16(data, 0x8, true);
ushort rangeCount = ToUInt16(data, 0xa, true);
ushort langCount = ToUInt16(data, 0xc, true);
// Only care about ExD data table type headers.
if (Variant != 1)
{
return;
}
Columns = new ExHColumn[columnCount];
for (int i = 0; i < columnCount; i++)
{
// Column offsets start after the fixed offset values (0x20).
// Each column offset is 4 bytes long.
int columnOffset = 0x20 + i * 0x4;
Columns[i] = new ExHColumn()
{
Type = ToUInt16(data, columnOffset, true),
Offset = ToUInt16(data, columnOffset + 0x2, true)
};
}
Ranges = new ExHRange[rangeCount];
for (int i = 0; i < rangeCount; i++)
{
// Range offsets start after the column offsets.
// Each range offset is 8 bytes long.
int rangeOffset = (0x20 + columnCount * 0x4) + i * 0x8;
Ranges[i] = new ExHRange()
{
Start = ToInt32(data, rangeOffset, true),
Length = ToInt32(data, rangeOffset + 0x4, true)
};
}
Languages = new ExHLanguage[langCount];
for (int i = 0; i < langCount; i++)
{
// Language offsets start after the range offsets.
// Each language offset is 2 bytes long.
int langOffset = ((0x20 + columnCount * 0x4) + rangeCount * 0x8) + i * 0x2;
Languages[i] = new ExHLanguage()
{
Value = data[langOffset]
};
}
}