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);
}
private void Awake()
{
if (instance != null && instance != this)
{
Destroy(this.gameObject);
return;
}
else
{
instance = this;
}
DontDestroyOnLoad(transform.gameObject);
levelName = SceneManager.GetActiveScene().name;
}
public LevelInfo GetLevelInfo(LevelIdentifier level)
{
int w = (int)level.world;
int l = level.level;
int base_addr = world_entries[w].WorldDataBaseAddress;
LevelInfo res;
res.DataBaseAddress = base_addr + level_entries[w][l].level_data_offset;
res.DataUncompressedSize = level_entries[w][l].level_uncompressed_size;
res.GraphicalBaseAddress = base_addr + level_entries[w][l].graphical_data_offset;
res.GraphicalUncompressedSize = level_entries[w][l].graphical_uncompressed_size;
res.BackgroundBaseAddress = base_addr + level_entries[w][l].background_data_offset;
res.BackgroundUncompressedSize = level_entries[w][l].background_uncompressed_size;
res.MinimapBaseAddress = base_addr + level_entries[w][l].minimap_data_offset;
res.MinimapSize = level_entries[w][l].minimap_size;
return(res);
}
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;
}
public bool AlterLevelData(LevelIdentifier level, byte[] new_data, byte[] new_graphical, byte[] new_background, byte[] new_minimap, bool relocate)
{
RawMapData original = ExtractLevelData(level);
if (new_data != null && original.RawData.SequenceEqual(new_data))
{
new_data = null;
}
if (new_graphical != null && original.RawGraphical.SequenceEqual(new_graphical))
{
new_graphical = null;
}
if (new_background != null && original.RawBackground.SequenceEqual(new_background))
{
new_background = null;
}
if (new_minimap != null && original.RawMinimap.SequenceEqual(new_minimap))
{
new_minimap = null;
}
if (new_data == null && new_graphical == null && new_background == null && new_minimap == null)
{
return(false);
}
// Write compressed data
int w = (int)level.world;
int l = level.level;
LevelInfo info = GetLevelInfo(level);
int pos0 = relocate ? ceilToMultiple((int)rom.Length, 4) : info.DataBaseAddress;
level_entries[w][l].level_data_offset = pos0 - world_entries[w].WorldDataBaseAddress;
level_entries[w][l].level_uncompressed_size =
WriteDataWithCompression(level, original.RawData, original.CompressedData, new_data, pos0, relocate ? -1 : info.GraphicalBaseAddress);
int pos1 = ceilToMultiple((int)rom.Position, 4);
level_entries[w][l].graphical_data_offset = pos1 - world_entries[w].WorldDataBaseAddress;
level_entries[w][l].graphical_uncompressed_size =
WriteDataWithCompression(level, original.RawGraphical, original.CompressedGraphical, new_graphical, pos1, relocate ? -1 : info.BackgroundBaseAddress);
int pos2 = ceilToMultiple((int)rom.Position, 4);
level_entries[w][l].background_data_offset = pos2 - world_entries[w].WorldDataBaseAddress;
level_entries[w][l].background_uncompressed_size =
WriteDataWithCompression(level, original.RawBackground, original.CompressedBackground, new_background, pos2, relocate ? -1 : info.MinimapBaseAddress);
int pos3 = ceilToMultiple((int)rom.Position, 4);
level_entries[w][l].minimap_data_offset = pos3 - world_entries[w].WorldDataBaseAddress;
byte[] minimap = new_minimap == null ? original.RawMinimap : new_minimap;
int endAddr = (relocate ? pos3 : info.MinimapBaseAddress) + info.MinimapSize;
rom.Seek(pos3, SeekOrigin.Begin);
rom.Write(minimap, Math.Max(0, minimap.Length + pos3 - endAddr), Math.Min(endAddr - pos3, minimap.Length));
// Update LevelEntry structure
rom.Seek(world_entries[w].WorldInfoBaseAddress + Marshal.SizeOf(typeof(WorldInfo)), SeekOrigin.Begin);
BinaryWriter writer = new BinaryWriter(rom);
foreach (LevelEntry entry in level_entries[w])
{
Utils.TypeToByte(writer, entry);
}
return(true);
}