janhouse
9f6b0772f0
Build against the 26.3 dev bundle (26.3.build.151-beta; no stable build
exists yet).
26.3 rewrote the block palette in region files: a default-state block is a
bare string, any other state is {id, properties}, and a list mixing both
wraps the strings as {"": name}. The parser cast every entry to a
compound with Name/Properties, so every chunk saved by 26.3 threw
ClassCastException and the whole region failed to render. Both formats are
read now (a region holds a mix until every chunk is re-saved), and a chunk
that fails to parse is skipped instead of aborting the region.
2.2 KiB
Third-party code
MapSyncer for Xaero's World Map
Everything under src/main/java/com/mapsyncer/ and the two renderer adapters
src/main/java/lv/janhouse/mapsyncer/render/BlockPropertyResolver.java and
PlaceholderBlockGetter.java are taken from
MapSyncer for Xaero's World Map
https://github.com/RuoChennn/MapSyncer-for-XaeroWorldmap
commit 116986ac17d9c18706bbbd9df7851bd365bb67f1 (2026-09-02, v1.0.4 beta)
Copyright (c) RuoChennn and contributors
Licensed under the GNU General Public License v3.0
That project is the reference implementation of the wire protocol this plugin
speaks and of the Xaero region-file writer. This plugin as a whole is therefore
also distributed under the GPL-3.0 (see LICENSE).
Local modifications to the vendored code, kept deliberately small so upstream diffs stay readable:
mca/ChunkMask.java— new: lets a conversion skip chunks nobody has discovered (they become "no data" tiles instead of terrain).mca/convert/io/McaRegionLoader.java,mca/convert/RegionConversionPipeline.java— overloads taking aChunkMask.mca/McaReader.java— imports the plainnet.jpountzLZ4 package that the Paper server already ships (upstream relocates its own copy).mca/ChunkDataParser.java— heightmap bit width uses vanilla'sceillog2(height + 1)(upstream under-counts by one for 256-high dimensions); accepted chunk statuses includeinitialize_light.mca/ChunkSectionParser.java— reads the 26.3 block palette format (bare string entries,{id, properties},{"": name}) alongside the old{Name, Properties}one. Same approach as upstream PR #26.mca/convert/io/McaRegionLoader.java— a chunk that fails to parse is skipped instead of aborting the region.XaeroWriter.java— moved fromcom.mapsyncer.servertocom.mapsyncer.render/BlockPropertyResolver.java,render/PlaceholderBlockGetter.java— package moved; the cache-size constant is inlined.
Everything else in lv.janhouse.mapsyncer is original to this repository.
lz4-java
LZ4-compressed region files are read through the net.jpountz.lz4 classes the
Paper server bundles (at.yawk.lz4:lz4-java, Apache License 2.0). Nothing of
it is redistributed in this jar.