private static bool SearchAndModify(GameFile file)
{
// It is better not to try to modify it.
if (file.Name == "ARM7.bin")
{
return(false);
}
Console.WriteLine("Searching in {0}", file.Name);
bool found = false;
string[] noParams = new string[0];
// 1.A Check if it's encoded
bool isEncoded;
// Take ARM as compressed always, if the file finally
// it's not compressed the tool will do nothing
bool isArm9 = file is ArmFile;
isEncoded = isArm9;
// If it's an overlay is easy to know when it's compressed
OverlayFile overlay = file as OverlayFile;
if (overlay != null)
{
isEncoded = overlay.IsEncoded;
}
// 1.B Decode if so
if (isEncoded)
{
// Get the original size
long encodedSize = file.Length;
SetEncodingFormat(file, true);
file.Format.Read(); // Get data from file
file.Format.Import(noParams); // Call to the decoding program
file.Format.Write(); // Overwrite data file
file.Format.Dispose();
// Check if the file was decoded
// else, it is not encoded and must not be
// encoded again
// This can happen only with ARM9 file
isEncoded = encodedSize != file.Length;
if (!isEncoded)
{
Console.WriteLine("\tFile {0} is not encoded.", file.Name);
}
}
else
{
// Get a stream to work with and set to the file
// This allow read & write operations
// In the case of decoding this is already done
DataStream stream = new DataStream(new MemoryStream(), 0, 0);
file.Stream.WriteTo(stream);
file.ChangeStream(stream);
}
// 2 While get the end of the file
// 2.A Search next value & Edit the value
int pos = 0;
while (pos != -1)
{
pos = Search(file.Stream, pos);
if (pos != -1)
{
found = true;
pos = Replace(file.Stream, pos);
}
}
// Write if it was decoded return to original state
if (isEncoded)
{
SetEncodingFormat(file, false);
file.Format.Read(); // Get data from file
file.Format.Import(noParams); // Call to encoding program
file.Format.Write(); // Overwrite data file
file.Format.Dispose();
}
return(found);
}