static OsuDb ReadDb(string path)
{
OsuDb db = new OsuDb();
using (var r = new SerializationReader(File.OpenRead(path)))
{
db.OsuVersion = r.ReadInt32();
r.ReadInt32();
r.ReadBoolean();
r.ReadDateTime();
r.ReadString();
db.Beatmaps = new List <BeatmapEntry>();
int length = r.ReadInt32();
for (int i = 0; i < length; i++)
{
int currentIndex = (int)r.BaseStream.Position;
int entryLength = 0;
const int lengthOsuVersion = 20191107;
if (db.OsuVersion < lengthOsuVersion)
{
entryLength = r.ReadInt32();
}
db.Beatmaps.Add(ReadFromReader(r, false, db.OsuVersion));
if (db.OsuVersion < lengthOsuVersion && r.BaseStream.Position != currentIndex + entryLength + 4)
{
Debug.Fail($"Length doesn't match, {r.BaseStream.Position} instead of expected {currentIndex + entryLength + 4}");
}
}
r.ReadByte();
}
return(db);
}
public static BeatmapEntry ReadFromReader(SerializationReader r, bool readLength = true, int version = 20160729)
{
BeatmapEntry e = new BeatmapEntry();
int length = 0;
if (readLength)
{
length = r.ReadInt32();
}
int startPosition = (int)r.BaseStream.Position;
r.ReadString();
r.ReadString();
r.ReadString();
r.ReadString();
r.ReadString();
r.ReadString();
r.ReadString();
e.BeatmapChecksum = r.ReadString();
e.BeatmapFileName = r.ReadString();
r.ReadByte();
r.ReadUInt16();
r.ReadUInt16();
r.ReadUInt16();
r.ReadDateTime();
if (version >= 20140609)
{
r.ReadSingle();
r.ReadSingle();
r.ReadSingle();
r.ReadSingle();
}
else
{
r.ReadByte();
r.ReadByte();
r.ReadByte();
r.ReadByte();
}
r.ReadDouble();
if (version >= 20140609)
{
r.ReadDictionary <Mods, double>();
r.ReadDictionary <Mods, double>();
r.ReadDictionary <Mods, double>();
r.ReadDictionary <Mods, double>();
}
r.ReadInt32();
r.ReadInt32();
r.ReadInt32();
r.ReadSerializableList <TimingPoint>();
r.ReadInt32();
r.ReadInt32();
r.ReadInt32();
r.ReadByte();
r.ReadByte();
r.ReadByte();
r.ReadByte();
r.ReadInt16();
r.ReadSingle();
r.ReadByte();
r.ReadString();
r.ReadString();
r.ReadInt16();
r.ReadString();
r.ReadBoolean();
r.ReadDateTime();
r.ReadBoolean();
e.FolderName = r.ReadString();
r.ReadDateTime();
r.ReadBoolean();
r.ReadBoolean();
r.ReadBoolean();
r.ReadBoolean();
r.ReadBoolean();
if (version < 20140609)
{
r.ReadInt16();
}
r.ReadInt32();
r.ReadByte();
int endPosition = (int)r.BaseStream.Position;
Debug.Assert(!readLength || length == endPosition - startPosition);
return(e);
}