diff options
Diffstat (limited to 'src/World/Generation/ChunkNeighbors.cpp')
| -rw-r--r-- | src/World/Generation/ChunkNeighbors.cpp | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/World/Generation/ChunkNeighbors.cpp b/src/World/Generation/ChunkNeighbors.cpp index f34466e..c3ae5cb 100644 --- a/src/World/Generation/ChunkNeighbors.cpp +++ b/src/World/Generation/ChunkNeighbors.cpp @@ -2,7 +2,28 @@ namespace MC::World::Generation { -Chunk::BlockData get_block_wrapping(const Chunk& chunk, const ChunkNeighbors& neighbors, Vector<3, I32> pos) { +ChunkNeighbors find_chunk_neighbors(ChunkIndex chunk, ChunkRegistry& chunks) { + UInt neighbor_index = 0; + std::array<Chunk*, 8> neighbors{}; + for (I32 x = -1; x <= 1; x++) { + for (I32 y = -1; y <= 1; y++) { + if (x == 0 && y == 0) continue; + + auto& neighbor_data = chunks.get({chunk.x + x, chunk.y + y}); + if (neighbor_data.chunk.has_value()) neighbors[neighbor_index++] = &neighbor_data.chunk.value(); + } + } + + // Layout of neighboring chunks in `neighbors` array: + // (-1; -1) > (-1; 0) > (-1; 1) > (0; -1) + // ( 0; 1) > ( 1; -1) > ( 1; 0) > (1; 1) + return { + neighbors[3], neighbors[6], neighbors[4], neighbors[1], + neighbors[5], neighbors[7], neighbors[2], neighbors[0], + }; +} + +GetBlockWrappingResult get_block_wrapping(const Chunk& chunk, const ChunkNeighbors& neighbors, Vector<3, I32> pos) { const Chunk* chunk_to_ask; auto overflow = [](I32& c, I32 max) -> I8 { @@ -28,7 +49,8 @@ Chunk::BlockData get_block_wrapping(const Chunk& chunk, const ChunkNeighbors& ne else if (zo == -1) { chunk_to_ask = neighbors.north; } else { chunk_to_ask = &chunk; } - return chunk_to_ask->at(pos.x(), pos.y(), pos.z()); + if (!chunk_to_ask) return {false}; + return {true, chunk_to_ask->at(pos.x(), pos.y(), pos.z())}; } } \ No newline at end of file |