mapcrafter naïve patch for new 1.14 chunk format

patch.diff

diff --git a/src/mapcraftercore/mc/chunk.cpp b/src/mapcraftercore/mc/chunk.cpp
index 12f318b..6c78f41 100644
--- a/src/mapcraftercore/mc/chunk.cpp
+++ b/src/mapcraftercore/mc/chunk.cpp
@@ -173,7 +173,7 @@ bool Chunk::readNBT(mc::BlockStateRegistry& block_registry, const char* data, si
                const nbt::TagString& tag = level.findTag<nbt::TagString>("Status");
                // completely generated chunks in fresh 1.13 worlds usually have status 'fullchunk' or 'postprocessed'
                // however, chunks of converted <1.13 worlds don't use these, but the state 'mobs_spawned'
-               if (!(tag.payload == "fullchunk" || tag.payload == "postprocessed" || tag.payload == "mobs_spawned")) {
+               if (!(tag.payload == "fullchunk" || tag.payload == "full" || tag.payload == "postprocessed" || tag.payload == "mobs_spawned")) {
                        return true;
                }
        }
@@ -210,8 +210,6 @@ bool Chunk::readNBT(mc::BlockStateRegistry& block_registry, const char* data, si
                if (!section_tag.hasTag<nbt::TagByte>("Y")
                //              || !section_tag.hasArray<nbt::TagByteArray>("Blocks", 4096)
                //              || !section_tag.hasArray<nbt::TagByteArray>("Data", 2048)
-                               || !section_tag.hasArray<nbt::TagByteArray>("BlockLight", 2048)
-                               || !section_tag.hasArray<nbt::TagByteArray>("SkyLight", 2048)
                                || !section_tag.hasArray<nbt::TagLongArray>("BlockStates")
                                || !section_tag.hasTag<nbt::TagList>("Palette"))
                        continue;
@@ -248,9 +246,6 @@ bool Chunk::readNBT(mc::BlockStateRegistry& block_registry, const char* data, si
                        palette_lookup[i] = block_registry.getBlockID(block);
                }

-               const nbt::TagByteArray& block_light = section_tag.findTag<nbt::TagByteArray>("BlockLight");
-               const nbt::TagByteArray& sky_light = section_tag.findTag<nbt::TagByteArray>("SkyLight");
-
                // create a ChunkSection-object
                ChunkSection section;
                section.y = y.payload;
@@ -273,8 +268,16 @@ bool Chunk::readNBT(mc::BlockStateRegistry& block_registry, const char* data, si
                        continue;
                }

-               std::copy(block_light.payload.begin(), block_light.payload.end(), section.block_light);
-               std::copy(sky_light.payload.begin(), sky_light.payload.end(), section.sky_light);
+               if(section_tag.hasArray<nbt::TagByteArray>("BlockLight", 2048))
+               {
+                 const nbt::TagByteArray& block_light = section_tag.findTag<nbt::TagByteArray>("BlockLight");
+                 std::copy(block_light.payload.begin(), block_light.payload.end(), section.block_light);
+               }
+               if(section_tag.hasArray<nbt::TagByteArray>("SkyLight", 2048))
+               {
+                 const nbt::TagByteArray& sky_light = section_tag.findTag<nbt::TagByteArray>("SkyLight");
+                 std::copy(sky_light.payload.begin(), sky_light.payload.end(), section.sky_light);
+               }

                // add this section to the section list
                section_offsets[section.y] = sections.size();

how do i use this lol

It works well. Thank you :)

@ni5am You're welcome!
Note that this patch is now integrated into the 1.13 branch of Mapcrafter (thanks to @miclav). You should simply switch to that branch instead of applying this patch manually :)