public FoundationCatalogResource(int APIversion, Stream unused, FoundationCatalogResource basis) : this(APIversion, basis.version, basis.foundation, basis.common, basis.wallCatalogIndex, basis.floorCatalogIndex, basis.index3, basis.index4, basis.unknown5, basis.unknown6, basis.shape, basis.list) { materials = new MaterialList(OnResourceChanged, basis.materials); vpxyIndex = basis.vpxyIndex; }