add Chunk.encodeV2, decodeV2

src/files/WorldConverter.cpp

@@ -161,7 +161,7 @@ void WorldConverter::upgradeRegion(
 ) const {
     auto path = wfile->getRegions().getRegionFilePath(layer, x, z);
     auto bytes = files::read_bytes_buffer(path);
-    auto buffer = compatibility::convertRegion2to3(bytes, layer);
+    auto buffer = compatibility::convert_region_2to3(bytes, layer);
     files::write_bytes(path, buffer.data(), buffer.size());
 }
 

src/files/compatibility.cpp

@@ -39,7 +39,7 @@ static util::Buffer<ubyte> convert_voxels_1to2(const ubyte* buffer, uint32_t siz
     return util::Buffer<ubyte>(std::move(compressed), outLen);
 }
 
-util::Buffer<ubyte> compatibility::convertRegion2to3(
+util::Buffer<ubyte> compatibility::convert_region_2to3(
     const util::Buffer<ubyte>& src, RegionLayerIndex layer
 ) {
     const size_t REGION_CHUNKS = 1024;

src/files/compatibility.hpp

@@ -9,6 +9,6 @@ namespace compatibility {
     /// @see /doc/specs/region_file_spec.md
     /// @param src region file source content
     /// @return new region file content
-    util::Buffer<ubyte> convertRegion2to3(
+    util::Buffer<ubyte> convert_region_2to3(
         const util::Buffer<ubyte>& src, RegionLayerIndex layer);
 }