// TODO: Try to get rid of this static function
// (needed in order for file to read root chunks without having a parent chunk)
public static Chunk ReadChunk(SRFile file, Chunk parent)
{
ulong offset = file.Position;
uint size = file.ReadU32LE();
TwoCC fourCC = file.ReadTwoCC();
if (!fourCC.IsValid)
{
return(new UnknownChunk(file, parent, offset, (uint)(parent.Offset + parent.Size - offset)));
}
return(new SCUMM3Chunk(file, parent, fourCC.Name, offset, size));
}
private bool CheckChildren()
{
file.Position = Offset + spec.ChildOffset;
uint size = file.ReadU32LE();
if (size >= Offset + Size)
{
return(false);
}
TwoCC twoCC = file.ReadTwoCC();
if (!twoCC.IsValid)
{
return(false);
}
return(true);
}
private bool CheckFormat(SCUMM3File file)
{
foreach (byte enc in ENCRYPTION_VALUES)
{
file.Encryption = enc;
file.Position = 0;
uint size = file.ReadU32LE();
TwoCC twoCC = file.ReadTwoCC();
if (twoCC.IsValid && size <= file.Size)
{
file.FileVersion = SCUMMUtils.DetermineSCUMMVersion(file);
return(true);
}
}
return(false);
}