public RawMapData ExtractLevelData(LevelIdentifier level)
{
RawMapData res;
LevelInfo info = GetLevelInfo(level);
rom.Seek(info.DataBaseAddress, SeekOrigin.Begin);
long startPos = rom.Position;
res.RawData = LzCompression.Decompress(rom, info.DataUncompressedSize);
int length = (int)(rom.Position - startPos);
rom.Seek(startPos, SeekOrigin.Begin);
res.CompressedData = (new BinaryReader(rom)).ReadBytes(length);
rom.Seek(info.GraphicalBaseAddress, SeekOrigin.Begin);
startPos = rom.Position;
res.RawGraphical = LzCompression.Decompress(rom, info.GraphicalUncompressedSize);
length = (int)(rom.Position - startPos);
rom.Seek(startPos, SeekOrigin.Begin);
res.CompressedGraphical = (new BinaryReader(rom)).ReadBytes(length);
rom.Seek(info.BackgroundBaseAddress, SeekOrigin.Begin);
startPos = rom.Position;
res.RawBackground = LzCompression.Decompress(rom, info.BackgroundUncompressedSize);
length = (int)(rom.Position - startPos);
rom.Seek(startPos, SeekOrigin.Begin);
res.CompressedBackground = (new BinaryReader(rom)).ReadBytes(length);
rom.Seek(info.MinimapBaseAddress, SeekOrigin.Begin);
res.RawMinimap = (new BinaryReader(rom)).ReadBytes(info.MinimapSize);
return(res);
}
byte[] DecompressWorldData(int w, int offset, int uncompressed_size)
{
if (uncompressed_size == 0)
{
Debug.Assert(offset == 0);
return(null);
}
int addr = world_entries[w].WorldDataBaseAddress + offset;
//Debug.Assert(rom.Position <= addr);
rom.Seek(addr, SeekOrigin.Begin);
return(LzCompression.Decompress(rom, uncompressed_size));
}
int WriteDataWithCompression(LevelIdentifier level, byte[] original_raw, byte[] original_compressed, byte[] new_raw, int baseAddr, int endAddr)
{
rom.Seek(baseAddr, SeekOrigin.Begin);
if (new_raw == null && (endAddr < 0 || baseAddr + original_compressed.Length <= endAddr))
{
rom.Write(original_compressed);
return(original_raw.Length);
}
else if (new_raw == null)
{
new_raw = original_raw;
}
int uncompressed_length_written = LzCompression.Compress(rom, new_raw, endAddr);
if (uncompressed_length_written < new_raw.Length)
{
Console.WriteLine(string.Format("Warning: The new level {0} has been truncated.", level.ToString()));
}
Debug.Assert(uncompressed_length_written <= new_raw.Length);
return(floorToMultiple(uncompressed_length_written, 4));
//return new_raw.Length;
}
