void IMyStorageDataProvider.ReadFrom(ref MyOctreeStorage.ChunkHeader header, Stream stream, ref bool isOldFormat)
{
m_state.Version = stream.ReadUInt32();
if (m_state.Version != CURRENT_VERSION)
{
// Making sure this gets saved in new format and serialized cache holding old format is discarded.
isOldFormat = true;
}
m_state.Generator = stream.ReadInt32();
m_state.Seed = stream.ReadInt32();
m_state.Size = stream.ReadFloat();
if (m_state.Version == VERSION_WITHOUT_PLANETS)
{
m_state.IsPlanet = 0;
}
else
{
m_state.IsPlanet = stream.ReadUInt32();
}
if (m_state.IsPlanet != 0)
{
m_materialAttributes.ReadFrom(stream);
m_shapeAttributes.ReadFrom(stream);
m_hillAttributes.ReadFrom(stream);
m_canyonAttributes.ReadFrom(stream);
MyCompositeShapes.PlanetGenerators[m_state.Generator](ref m_shapeAttributes, ref m_hillAttributes, ref m_canyonAttributes, ref m_materialAttributes, out m_data);
}
else
{
MyCompositeShapes.AsteroidGenerators[m_state.Generator](m_state.Seed, m_state.Size, out m_data);
}
m_state.Version = CURRENT_VERSION;
}