private void WriteValues(StreamHandler Writer, UpdateFields values, ObjectTypeId type)
{
uint nValueUpdates = UpdateFields.GetCount(type, values.Last().Key);
byte nBlocks = (byte)((nValueUpdates + 31) / 32);
BitArray mask = new BitArray(nBlocks * 32);
foreach (int key in values.Keys)
{
mask[key] = true;
}
// Write block count
Writer.WriteByte(nBlocks);
// Write all blocks
int index = 0;
for (byte i = 0; i < nBlocks; ++i)
{
uint block = 0;
uint bit = 1;
for (int j = 0; j < 32; ++j)
{
if (mask[index])
{
block |= bit;
}
++index;
bit <<= 1;
}
Writer.WriteUInt32(block);
}
// Write all values
foreach (uint value in values.Values)
{
Writer.WriteUInt32(value);
}
}