public static RpDbTableEntry ReadEntry(Stream s, RpDbTable table)
{
//Create object.
RpDbTableEntry entry = new RpDbTableEntry(table, null);
entry.offset = (UInt32)s.Position;
//First, read in the UUID.
UInt32 uuid = ReaderTools.ReadUInt32(s);
entry.uuid = uuid;
//Read in the lengths.
UInt16[] lengths = new UInt16[table.typeOrder.Length];
for (int i = 0; i < table.typeOrder.Length; i++)
{
lengths[i] = ReaderTools.ReadUInt16(s);
}
//Now, read in the data
object obj = Activator.CreateInstance(table.type);
for (int i = 0; i < table.typeOrder.Length; i++)
{
Writer.PropIdPair pair = table.typeOrder[i];
//Skip this if the length is zero. (it's null)
UInt16 length = lengths[i];
if (length != 0)
{
//Read in the data.
byte[] buf = new byte[length];
s.Read(buf, 0, length);
//Todo: Actually get the data from it.
//For now, just read it in as a string
object d = Encoding.UTF8.GetString(buf);
//Now, set it inside the object.
pair.prop.SetValue(obj, d, null);
}
}
//Set the entry's object to this.
entry.data = obj;
//Return the entry.
return(entry);
}
public static RpDbDatabase ReadDatabase(Stream s, Type[] types)
{
//Read "RpDb" at the beginning
char[] intro = ReaderTools.ReadChars(s, 4);
//Read the version.
UInt16 version = ReaderTools.ReadUInt16(s);
//Skip 32 bytes of reserved space.
s.Position += 32;
//Read table count.
UInt16 tableCount = ReaderTools.ReadUInt16(s);
//Create the database object.
RpDbDatabase db = new RpDbDatabase(s);
//Create the tables array in the database.
db.tables = new RpDbTable[tableCount];
//Read the table offsets.
UInt32[] tableOffsets = new UInt32[tableCount];
string[] tableNames = new string[tableCount];
//Read each of the offsets and table names.
for (int i = 0; i < tableCount; i++)
{
tableOffsets[i] = ReaderTools.ReadUInt32(s);
//Read the name for verification.
tableNames[i] = ReaderTools.ReadString(s);
}
//Read each of the tables, starting at the offsets.
UInt32 startingOffset = (UInt32)s.Position;
for (int tableId = 0; tableId < tableCount; tableId++)
{
//Jump to the position offered.
s.Position = startingOffset + tableOffsets[tableId];
db.tables[tableId] = TableReader.ReadTable(s, types, db);
}
//Return the database.
return(db);
}
public static RpDbTable ReadTable(Stream s, Type[] types, RpDbDatabase database)
{
//Read the table name.
string name = ReaderTools.ReadString(s);
//Read the type
string typeName = ReaderTools.ReadString(s);
//Determine the type.
Type t = null;
//Loop through types and find match.
foreach (Type tt in types)
{
if (tt.ToString() == typeName)
{
t = tt;
}
}
//Check if it was found.
if (t == null)
{
throw new Exception("Failed to find type '" + typeName + "'.");
}
//Create the object.
RpDbTable table = new RpDbTable(name, t, database);
//Read the number of entries.
UInt32 entryCount = ReaderTools.ReadUInt32(s);
//Read number of types.
UInt16 typeCount = ReaderTools.ReadUInt16(s);
//Read the type table in. This'll give us the order.
Writer.PropIdPair[] order = new Writer.PropIdPair[typeCount];
for (int i = 0; i < typeCount; i++)
{
//Read in.
UInt16 typeId = ReaderTools.ReadUInt16(s);
ClassAttrib attr = null;
System.Reflection.PropertyInfo chosenProp = null;
//Find this in the object.
foreach (var prop in table.type.GetProperties())
{
//Check the UUID.
ClassAttrib propAttr = Writer.TableWriter.GetUuidFromProperty(prop);
//If there is no UUID, skip this.
if (propAttr == null)
{
continue;
}
//Add this to the order if it matches
if (propAttr.uuid == typeId)
{
attr = propAttr;
chosenProp = prop;
}
}
if (attr != null && chosenProp != null)
{
order[i] = new Writer.PropIdPair(chosenProp, typeId);
}
else
{
Console.WriteLine("No attr found for ID " + typeId.ToString() + ".");
}
}
table.typeOrder = order;
//Now that we know the order of the types, we can read it in.
//Skip 32 bytes of reserved data.
s.Position += 32;
//Read each of the offsets in. Add them to the dict as we go.
for (int i = 0; i < entryCount; i++)
{
//Read offset
UInt32 offset = ReaderTools.ReadUInt32(s);
//Read UUID
UInt32 uuid = ReaderTools.ReadUInt32(s);
//Insert.
table.uuidLookup.Add(uuid, offset);
}
//Now, the data begins. Add the flag.
table.tableDataOffset = s.Position;
//We can now continue to the next table.
return(table);
}