/// <summary>
/// Parses presence.db file.
/// </summary>
/// <param name="stream">Stream containing presence.db data.</param>
/// <returns>A usable <see cref="PresenceDatabase"/>.</returns>
public static PresenceDatabase DecodePresence(Stream stream)
{
PresenceDatabase db = new PresenceDatabase();
using (var r = new SerializationReader(stream))
{
db.OsuVersion = r.ReadInt32();
int playersCount = r.ReadInt32();
for (int i = 0; i < playersCount; i++)
{
Player player = new Player();
player.UserId = r.ReadInt32();
player.Username = r.ReadString();
player.Timezone = r.ReadByte() - 24;
player.CountryCode = r.ReadByte();
byte b = r.ReadByte();
player.Permissions = (Permissions)(b & ~0xe0);
player.Ruleset = (Ruleset)Math.Max(0, Math.Min(3, ((b & 0xe0) >> 5)));
player.Longitude = r.ReadSingle();
player.Latitude = r.ReadSingle();
player.Rank = r.ReadInt32();
player.LastUpdateTime = r.ReadDateTime();
db.Players.Add(player);
}
}
return(db);
}
public static void EncodePresenceDatabase(string path, PresenceDatabase db)
{
using (SerializationWriter writer = new SerializationWriter(new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read)))
{
writer.Write(db.OsuVersion);
writer.Write(db.Players.Count);
foreach (var player in db.Players)
{
writer.Write(player.UserId);
writer.Write(player.Username);
writer.Write((byte)(player.Timezone + 24));
writer.Write(player.CountryCode);
writer.Write((byte)(((byte)player.Permissions & 0x1f) | (((byte)player.Ruleset & 0x7) << 5)));
writer.Write(player.Longitude);
writer.Write(player.Latitude);
writer.Write(player.Rank);
writer.Write(player.LastUpdateTime);
}
}
}
