- Infinite/chunked maps: <chunk x y width height> (TMX) and JSON chunks[]
(default 16x16) decode and flatten into the dense layer array, sized to the
chunk union; the map's 0/0 header dimensions fall back to the flattened bounds.
- .world stitching: Tiled.world / Tiled.world_count / Tiled.world_map read a
.world (JSON, reusing Json.parse) and list its member maps at their offsets.
- base64+zstd: a self-contained pure-Ludic Zstandard decompressor
(runtime/native/zstd.ludic, RFC 8878) — the design's "largest single item,
explicitly last". Frame header + raw/RLE/compressed blocks; raw/RLE and
direct-weight Huffman literals; the full FSE sequence path (predefined,
transcribed exactly from zstd's hardcoded tables since they're not rebuildable
from the default distributions; RLE; FSE-described) with repeat offsets and
execution. Decodes the low-entropy GID streams a tilemap produces; a high-
entropy FSE-compressed-Huffman-weights block fails cleanly with -1 rather than
emitting wrong bytes (documented scope).
Proven by library/tiled_p6.ludic (12 assertions): TMX + TMJ chunk flattening,
.world offsets, and a real zstd-compressed tile layer decoding byte-exactly to
its CSV baseline. x test: 97 passed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The curated, version-pinned corpus for the Ludic Tiled reader (design record:
Design: Tiled maps,
issues #67–#74). No single Tiled file covers the format surface, so this is a
subset of the official mapeditor/tiledexamples/ tree plus a few hand-authored files for the gaps the official
examples miss.
Vendored from mapeditor/tiled (examples/)
Fetched from https://raw.githubusercontent.com/mapeditor/tiled/master/examples/.
Tiled's example assets carry their own licenses (see the upstream repo's
per-folder *.license/README); vendored here with attribution for testing only.
a 4×4 orthogonal map whose four layers carry the same GID array in CSV, base64-uncompressed, base64+gzip and base64+zlib — so every encoding path must decode identically. The last tile is GID 1 with the horizontal-flip flag (0x80000001), forcing real GID decode. handmade.tsx also carries a solid bool property and a per-tile <objectgroup> collision shape for P2.
Orkuncakilkaya
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