| 34 | { |
| 35 | template < index_t dimension > |
| 36 | class ArrayImpl |
| 37 | { |
| 38 | friend class bitsery::Access; |
| 39 | using CellIndices = typename CellArray< dimension >::CellIndices; |
| 40 | |
| 41 | public: |
| 42 | [[nodiscard]] index_t cell_index( const CellArray< dimension >& array, |
| 43 | const CellIndices& index ) const |
| 44 | { |
| 45 | const auto nb_u = array.nb_cells_in_direction( 0 ); |
| 46 | auto cell_id = index[0] + ( index[1] * nb_u ); |
| 47 | if( dimension == 3 ) |
| 48 | { |
| 49 | cell_id += index[2] * nb_u * array.nb_cells_in_direction( 1 ); |
| 50 | } |
| 51 | return cell_id; |
| 52 | } |
| 53 | |
| 54 | [[nodiscard]] CellIndices cell_indices( |
| 55 | const CellArray< dimension >& array, index_t index ) const |
| 56 | { |
| 57 | OpenGeodeBasicException::check_assertion( index < array.nb_cells(), |
| 58 | "[CellArray::cell_index] Invalid index" ); |
| 59 | CellIndices cell_id; |
| 60 | for( const auto d : LRange{ dimension } ) |
| 61 | { |
| 62 | index_t offset{ 1 }; |
| 63 | for( const auto d2 : LRange{ dimension - d - 1 } ) |
| 64 | { |
| 65 | offset *= array.nb_cells_in_direction( d2 ); |
| 66 | } |
| 67 | const auto value = |
| 68 | static_cast< index_t >( std::floor( index / offset ) ); |
| 69 | cell_id[dimension - d - 1] = value; |
| 70 | index -= value * offset; |
| 71 | } |
| 72 | return cell_id; |
| 73 | } |
| 74 | |
| 75 | private: |
| 76 | template < typename Archive > |
| 77 | void serialize( Archive& serializer ) |
| 78 | { |
| 79 | serializer.ext( *this, |
| 80 | Growable< Archive, ArrayImpl >{ |
| 81 | { []( Archive& /*unused*/, ArrayImpl& /*unused*/ ) {} } } ); |
| 82 | } |
| 83 | }; |
| 84 | } // namespace geode::internal |
nothing calls this directly
no outgoing calls
no test coverage detected