irrlicht/forgotten_caves
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Drop the chunk palette; chunks are plain u16 tile arrays

Browse Source 
The 64-entry per-chunk palette was a wire-format artifact and capped a chunk
at 64 distinct tiles. A Chunk is now Box<[u16; 1024]> with flags derived from
the id on lookup — the same layout a binary on-disk format would use.

Map path becomes the first CLI argument; assets/map_large is a generated
256×256 stress map (loads in ~0.5 ms release). The snapshot test takes
SNAPSHOT_MAP.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
irrlicht
2026-09-18 23:40:52 +02:00
co-authored by Claude Opus 5
parent 5a055c048d
commit 1d14076468
10 changed files with 317 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files
assets/map_large
+256
View File
@@ -0,0 +1,256 @@
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25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,146,146,146,146,146,25,25,25,25,25,146,25,146,25,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,25,146,146,25,146,146,25,146,25,146,25,25,25,146,75,74,74,75,25,25,25,25,25,25,25,25,146,146,146,146,146,74,74,74,25,75,25,25,25,25,25,146,146,146,146,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,146,25,25,146,146,146,25,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,75,75,75,74,75,74,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,146,146,146,146,25,146,146,146,146,146,146,25,25,75,75,75,75,25,25,146,146,146,146,146,146,146,146,146,146,146,25,25,25,75,75,146,75,25,25,25,25,25,25,25,75,25,25,146,146,25,74,75,75,25,74,74,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,146,25,25,146,146,146,25,25,146,25,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,75,74,75,75,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,25,146,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,74,74,74,75,25,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,25,146,25,74,25,25,74,74,74,74,74,74,75,74,75,74,75,74,74,75,74,75,75,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,146,146,25,146,146,146,146,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,74,74,74,146,25,25,25,25,25,146,25,25,146,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,146,146,25,146,146,25,25,25,25,25,74,146,25,146,25,146,146,146,146,146,146,146,146,146,146,25,146,146,75,75,75,25,25,25,25,74,74,75,74,75,75,74,74,25,75,75,75,74,74,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,146,146,146,25,146,25,146,146,25,146,146,146,146,146,146,146,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,146,146,146,146,146,146,25,146,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,25,146,146,25,25,146,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,25,146,25,25,25,25,25,25,74,74,146,146,25,146,146,146,146,146,146,146,146,146,146,146,146,146,75,25,75,25,25,25,25,74,74,74,74,74,75,74,74,74,75,75,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,146,146,146,146,25,146,146,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,146,146,146,146,146,25,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,74,74,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,74,75,25,25,75,25,25,75,75,74,74,75,75,25,25,25,25,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,25,25,146,25,146,146,25,25,25,25,146,146,146,25,25,25,146,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,146,146,146,25,25,25,25,25,25,25
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25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,75,74,74,74,74,75,74,75,75,146,146,146,75,74,75,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,25,25,25,25,25,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,74,75,74,74,25,146,146,146,146,146
25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,146,25,75,74,74,75,74,74,75,74,75,75,75,25,146,146,146,74,75,75,75,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,75,146,75,146,146,74,146,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,74,74,75,74,74,146,74,75,74,75,75,146,74,25,146,146,74,75,75,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,75,74,25,74,75,75,75,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,25,146,74,75,74,146,75,74,74,146,146,75,74,74,74,146,25,75,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,25,146,25,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,74,75,75,75,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,146,25,146,146,75,74,75,74,74,74,74,74,25,146,75,75,75,74,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,146,146,146,146,146,146,146,25,25,25,146,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,74,74,74,74,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,25,146,146,146,146,25,75,74,75,75,75,75,146,146,146,74,74,75,75,75,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,146,25,25,25,25,25,25,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,74,146,74,146,146,146,146,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,25,146,146,25,146,146,75,75,75,74,75,74,74,75,74,74,75,75,146,75,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,25,146,146,25,25,25,25,25,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,25,75,74,74,146,74,146,146,146,146,25,25,146,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,75,75,74,75,74,75,75,75,75,75,146,25,75,25,25,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,74,74,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,75,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,25,25,25,25,25,146,146,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,75,74,75,75,75,74,146,146,146,146,146,146,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,146,74,75,146,75,75,75,25,146,146,75,25,146,25,25,25,25,74,75,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,74,75,74,74,75,75,75,74,74,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,74,74,74,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,74,74,74,75,75,74,146,146,25,25,25,25,146,25,25
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25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,25,146,146,146,25,146,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,146,146,25,146,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,146,146,146,146,25,146,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,25,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,25,146,25,146,146,146,146,146,146,146,146,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,25,146,146,25,146,146,146,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,25,25,146,146,25,25,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,146,146,146,146,25,146,146,25,25,146,146,146,25,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,146,146,146,146,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,25,146,25,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,25,146,146,25,25,25,146,146,25,146,25,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,25,146,25,146,25,146,146,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,146,146,25,25,25,25,25,25,25,25,146,146,146,146,25,25,25,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,25,25,25,25,146,25,146,146,146,146,146,146,146,146,146,146,146,25,25,25,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,146,146,25,146,25,146,25,25,146,146,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,25,146,146,146,146,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,25,25,25,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,25,146,146,25,146,146,25,146,146,25,25,25,25,25,25,25,25,146,25,146,25,146,146,25,146,146,146,146,25,25,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,146,146,146,25,146,146,146,146,146,146,146,146,146,146,25,146,146,25,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,25,25,25,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,146,146,146,146,146,146,146,25,146,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,25,146,25,25,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,146,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,25,146,146,146,146,25,25,25,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,25,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,25,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,146,146,146,25,25,25,25,25,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,146,146,146,25,146,25,146,25,146,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25
game/src/game.rs
+11 -7
View File
@@ -76,13 +76,16 @@ pub struct Game {
}
impl Game {
pub fn start() -> Self {
pub fn start(map_path: &str) -> Self {
let tileset = Image::from_png("assets/tilesets/overworld.png").to_tileset();
let entity_tileset = Image::from_png("assets/tilesets/entities.png").to_tileset();
let map = TileMap::from_csv("assets/map_test");
println!("loaded map {}×{} ({} tiles)", map.width, map.height, map.tiles.len());
let mut sim = Sim::new(load_world(&map));
let t0 = std::time::Instant::now();
let map = TileMap::from_csv(map_path);
let world = load_world(&map);
println!("loaded {map_path}: {}×{} tiles in {:.1} ms",
map.width, map.height, t0.elapsed().as_secs_f64() * 1e3);
let mut sim = Sim::new(world);
let player_id = sim.world.spawn_entity(0, (0, 0), 100);
let mut game = Game {
@@ -338,7 +341,7 @@ impl Game {
let (ccx, ccy) = sim::world::tile_to_chunk(wx as i16, wy as i16);
let (lx, ly) = sim::world::tile_to_local(wx as i16, wy as i16);
let tile_id = self.sim.world.chunk(ccx, ccy)
.map(|c| c.get_tile(lx, ly).tile_id)
.map(|c| c.get_tile(lx, ly))
.unwrap_or(0);
let px = sx + vx * TILE_PX;
let py = sy + vy * TILE_PX;
@@ -389,13 +392,14 @@ impl Game {
#[cfg(test)]
mod snapshot {
/// Renders the first frame headlessly to the PNG named by `$SNAPSHOT` — a way to
/// eyeball the renderer without a window:
/// eyeball the renderer without a window. `$SNAPSHOT_MAP` picks the map:
/// `SNAPSHOT=/tmp/frame.png cargo test -p game snapshot -- --ignored`
#[test]
#[ignore]
fn dump_frame() {
std::env::set_current_dir("..").unwrap();
let mut g = super::Game::start();
let map = std::env::var("SNAPSHOT_MAP").unwrap_or_else(|_| "assets/map_test".into());
let mut g = super::Game::start(&map);
let input = crate::input::InputState::new();
let mut frame = vec![0u16; 320 * 240];
g.update(&mut frame, 0, &input);
game/src/main.rs
+3 -1
View File
@@ -19,7 +19,9 @@ fn main() {
let input_map = input::InputMap::new();
let mut input_state = input::InputState::new();
let mut last_update = Instant::now();
let mut game = game::Game::start();
// Optional map path: `game assets/map_large`.
let map_path = std::env::args().nth(1).unwrap_or_else(|| "assets/map_test".into());
let mut game = game::Game::start(&map_path);
while !plat.should_close() {
plat.poll_events(Some(Duration::from_millis(20)));
notes/07-map-loader.md
+7 -3
View File
@@ -38,7 +38,7 @@ therefore shows up in the CSV as a large *negative* decimal when read as `i32`.
The loader parses each field as `i64`, reinterprets the low 32 bits as `u32`, and strips the
flip flags with `& 0x1FFF_FFFF`, leaving the bare tile id. **Flip orientation is discarded for
now** — flipped tiles render unflipped. Real flipping would need a flip-aware `blit_tile` plus
the flags carried through the chunk palette; deferred to the camera/sprite pass (09).
a flip flag next to the tile id in the chunk; deferred to the camera/sprite pass (09).
---
@@ -57,8 +57,12 @@ No `firstgid` subtraction: the authored ids already line up with `overworld.png`
## World assembly
`load_world` slices the map into 32×32 chunks via `Chunk::generate`, which builds each chunk's
6-bit palette automatically. The map's top-left tile sits at world (0, 0).
`load_world` slices the map into 32×32 chunks via `Chunk::generate`. A chunk is a plain
`[u16; 1024]` of tile ids; flags are derived from the id on lookup (`map::tile_flags`). That
array is also the natural on-disk layout should chunks ever be streamed from disk (RLE over
the `u16`s would do) — the CSV stays the interchange format for external tooling. The map's
top-left tile sits at world (0, 0). Loading a 256×256 map takes well under a millisecond in
release; the map path is the game's first CLI argument (`game assets/map_large`).
**Edge border:** a 30×30 map only fills part of chunk (0,0) (which spans tiles 0–31). Tiles
inside a loaded chunk but outside the authored map are emitted as an *invisible solid border*
notes/roadmap.md
+4 -2
View File
@@ -24,8 +24,10 @@ crate's `tick`/`set_action` interface is the seam a server could be wrapped arou
- [x] Pixel helpers: `set_pixel`, `extract`, `blit`, `blit_tile` in `game/src/game/pixelhelper.rs`
— signed `i32` offsets, clip against all four framebuffer edges, per-tile opacity mask
- [x] Input system: `GameAction`, `InputMap`, `InputState` in `game/src/input.rs` (over `pbio::Key`)
- [x] World model: `World` of 32×32 palette-compressed `Chunk`s (64-entry `TileDef` palette,
6-bit tile indices), entities indexed per chunk, `entities_in_viewport`
- [x] World model: `World` of 32×32 `Chunk`s (plain `[u16; 1024]` tile ids, flags derived
on lookup — the network-era 64-entry palette is gone), entities indexed per chunk,
`entities_in_viewport`. Map path is the first CLI argument; `assets/map_large` is a
generated 256×256 stress map
- [x] Map loader: Tiled-CSV parser in `sim/src/map.rs` (flip-flag masking, content-derived
dimensions), `load_world` slices it into chunks, invisible solid border at the map rim.
See `notes/07-map-loader.md`
sim/src/chunk.rs
+21 -70
View File
@@ -1,3 +1,4 @@
/// Gameplay properties of a tile, derived from its id (see `map::tile_flags`).
#[derive(Clone, Copy, Default, Debug, PartialEq, Eq)]
pub struct TileFlags(pub u8);
@@ -11,92 +12,42 @@ impl TileFlags {
pub fn liquid(self) -> bool { self.0 & Self::LIQUID != 0 }
}
#[derive(Clone, Copy, Default, Debug, PartialEq, Eq)]
pub struct TileDef { pub tile_id: u16, pub flags: TileFlags }
#[derive(Debug)]
pub struct PaletteFullError;
pub const CHUNK_SIZE: usize = 32;
pub const CHUNK_TILES: usize = CHUNK_SIZE * CHUNK_SIZE;
/// A 32×32 block of tile ids, row-major. This is the whole chunk: flags are derived from
/// the id on lookup, so the in-memory layout is already the plain `u16` array a binary
/// on-disk format would store.
pub struct Chunk {
pub palette: [TileDef; 64],
pub pal_count: u8,
pub tiles: Box<[u8; 1024]>,
pub version: u16,
pub tiles: Box<[u16; CHUNK_TILES]>,
}
impl Chunk {
/// Runtime use: all tiles empty, pal_count=1, version=1.
/// Clients with version=0 will always request this chunk.
/// All tiles id 0 (empty / solid border).
pub fn new() -> Self {
Self {
palette: [TileDef::default(); 64],
pal_count: 1,
tiles: Box::new([0u8; 1024]),
version: 1,
}
Self { tiles: Box::new([0; CHUNK_TILES]) }
}
/// Find existing palette entry or insert a new one.
/// Index 0 is always the null sentinel; this short-circuits for default TileDef.
/// Returns (palette_index, was_new). Does NOT bump version.
fn find_or_insert_raw(&mut self, def: TileDef) -> Result<(u8, bool), PaletteFullError> {
if def == TileDef::default() {
return Ok((0, false));
}
for i in 1..self.pal_count as usize {
if self.palette[i] == def {
return Ok((i as u8, false));
/// World gen path. Calls the closure for every local tile coordinate.
pub fn generate(f: impl Fn(u8, u8) -> u16) -> Self {
let mut chunk = Self::new();
for ly in 0..CHUNK_SIZE {
for lx in 0..CHUNK_SIZE {
chunk.tiles[ly * CHUNK_SIZE + lx] = f(lx as u8, ly as u8);
}
}
if self.pal_count >= 64 {
return Err(PaletteFullError);
}
let idx = self.pal_count;
self.palette[idx as usize] = def;
self.pal_count += 1;
Ok((idx, true))
chunk
}
/// World gen path. Calls the closure for every tile coordinate.
/// version=0 so the first StatePacket causes all clients to request it.
pub fn generate(f: impl Fn(u8, u8) -> TileDef) -> Result<Self, PaletteFullError> {
let mut chunk = Self {
palette: [TileDef::default(); 64],
pal_count: 1,
tiles: Box::new([0u8; 1024]),
version: 0,
};
for ly in 0u8..32 {
for lx in 0u8..32 {
let def = f(lx, ly);
let (idx, _) = chunk.find_or_insert_raw(def)?;
chunk.tiles[ly as usize * 32 + lx as usize] = idx;
}
}
chunk.version = 1;
Ok(chunk)
pub fn set_tile(&mut self, lx: u8, ly: u8, id: u16) {
self.tiles[ly as usize * CHUNK_SIZE + lx as usize] = id;
}
/// Set a tile at local coords. Bumps version if tile index or palette changed.
pub fn set_tile(&mut self, lx: u8, ly: u8, def: TileDef) -> Result<(), PaletteFullError> {
let (idx, was_new) = self.find_or_insert_raw(def)?;
let slot = &mut self.tiles[ly as usize * 32 + lx as usize];
let changed = *slot != idx;
*slot = idx;
if changed || was_new {
self.version = self.version.wrapping_add(1);
if self.version == 0 {
self.version = 1;
}
}
Ok(())
}
pub fn get_tile(&self, lx: u8, ly: u8) -> TileDef {
self.palette[self.tiles[ly as usize * 32 + lx as usize] as usize]
pub fn get_tile(&self, lx: u8, ly: u8) -> u16 {
self.tiles[ly as usize * CHUNK_SIZE + lx as usize]
}
pub fn tile_flags(&self, lx: u8, ly: u8) -> TileFlags {
self.get_tile(lx, ly).flags
crate::map::tile_flags(self.get_tile(lx, ly))
}
}
sim/src/lib.rs
+5 -9
View File
@@ -9,7 +9,7 @@ mod sim;
pub use sim::Sim;
use chunk::{Chunk, TileDef, TileFlags};
use chunk::Chunk;
use map::TileMap;
use world::World;
@@ -99,8 +99,8 @@ pub fn tile_collidable(tile_id: u16) -> bool {
/// Build a world from a loaded tile map. The map's top-left tile sits at world (0, 0); the
/// map is sliced into 32×32 chunks. Tiles inside a loaded chunk but outside the authored map
/// become an invisible solid border (id 0, collidable), so the walkable world edge sits flush
/// with the visible map rim instead of with the larger chunk boundary.
/// get id 0 (solid, see `tile_collidable`), so the walkable world edge sits flush with the
/// visible map rim instead of with the larger chunk boundary.
pub fn load_world(map: &TileMap) -> World {
let mut w = World::new();
let max_cx = (map.width.saturating_sub(1) >> 5) as i16;
@@ -109,12 +109,8 @@ pub fn load_world(map: &TileMap) -> World {
for cx in 0..=max_cx {
let chunk = Chunk::generate(|lx, ly| {
let (wx, wy) = world::local_to_tile(cx, cy, lx, ly);
if wx < 0 || wy < 0 || wx >= map.width as i16 || wy >= map.height as i16 {
return TileDef { tile_id: 0, flags: TileFlags(TileFlags::COLLIDABLE) };
}
let id = map.tile(wx, wy);
TileDef { tile_id: id, flags: map::tile_flags(id) }
}).expect("palette overflow during world gen");
map.tile(wx, wy) // 0 outside the map
});
w.set_chunk(cx, cy, chunk);
}
}
sim/src/map.rs
+3 -3
View File
@@ -64,9 +64,9 @@ impl TileMap {
}
}
/// Gameplay flags for a global tile id. Collision comes from the shared movement
/// vocabulary (`crate::tile_collidable`) so the client can predict it identically;
/// other flags (opaque, …) stay sim-side. Tile ids index into `overworld.tga`.
/// Gameplay flags for a global tile id. Collision comes from the movement vocabulary
/// (`crate::tile_collidable`) so the pathfinder predicts it identically; other flags
/// (opaque, …) will join here. Tile ids index into `overworld.png`.
pub fn tile_flags(tile_id: u16) -> TileFlags {
let mut bits = 0u8;
if crate::tile_collidable(tile_id) {
sim/src/sim.rs
+4 -6
View File
@@ -69,16 +69,14 @@ impl Sim {
#[cfg(test)]
mod tests {
use super::*;
use crate::chunk::{Chunk, TileDef, TileFlags};
use crate::chunk::Chunk;
use crate::player_action;
/// Open floor (id 1) with a single wall tile at (5, 4) — id 146 is collidable in
/// the tile vocabulary.
fn open_world() -> World {
let mut w = World::new();
w.set_chunk(0, 0, Chunk::generate(|lx, ly| {
// A single wall tile at (5, 4).
let flags = if (lx, ly) == (5, 4) { TileFlags::COLLIDABLE } else { 0 };
TileDef { tile_id: 1, flags: TileFlags(flags) }
}).unwrap());
w.set_chunk(0, 0, Chunk::generate(|lx, ly| if (lx, ly) == (5, 4) { 146 } else { 1 }));
w
}
sim/src/world.rs
+3 -3
View File
@@ -1,5 +1,5 @@
use std::collections::HashMap;
use crate::chunk::{Chunk, TileDef, TileFlags, PaletteFullError};
use crate::chunk::{Chunk, TileFlags};
use crate::entity::Entity;
pub fn tile_to_chunk(tx: i16, ty: i16) -> (i16, i16) {
@@ -45,11 +45,11 @@ impl World {
self.chunks.get(&(cx, cy)).map(|c| c.tile_flags(lx, ly))
}
pub fn set_tile(&mut self, wx: i16, wy: i16, def: TileDef) -> Result<(), PaletteFullError> {
pub fn set_tile(&mut self, wx: i16, wy: i16, id: u16) {
let (cx, cy) = tile_to_chunk(wx, wy);
let (lx, ly) = tile_to_local(wx, wy);
let chunk = self.chunks.entry((cx, cy)).or_insert_with(Chunk::new);
chunk.set_tile(lx, ly, def)
chunk.set_tile(lx, ly, id);
}
pub fn spawn_entity(&mut self, type_id: u16, pos: (i16, i16), hp: u16) -> u32 {