tarinai/BUILD_NOTE.txt

tarinai_compact_save_stage4
- Save schema 33 omits standard item amounts and stores only an optional non-standard block base plus per-item differences.
- Relationship targets are sorted and delta-encoded within each Tarinai row.
- World seeds use a canonical 64-bit hexadecimal identity and occupy exactly 8 bytes in the binary save.
- The binary header contains one schema byte; its high bit signals whether a string table follows. Empty string tables and the duplicate snapshot version are omitted.
- Deflate state is folded into the low bit of the frame-length varuint, eliminating the separate compression byte.
- 15-bit text conversion uses arithmetic Unicode range mapping instead of a 32768-character string and reverse Map.
- Previous binary schemas are intentionally unsupported.
- Version: 39.16.18
- CompressionStream and DecompressionStream are drained concurrently to avoid browser backpressure stalls.

- Load confirmation uses the in-game dialog; fan wind is realtime; zunchi tool preview opacity, carried plushie depth, and blanket grass rules were corrected.

- Passive spring: removed time-driven oscillation; force now depends on extension/compression and relative endpoint velocity.
- Signal effects use the exported TarinaiEffect constructor.
- Pressure-switch placement/editor overlays display the configured detection radius.

- v39.16.18: removed redundant physics normalization, dirty-marking, compaction, pickup, and collision bookkeeping; unified one-way-fence and bounce corrections while retaining debug diagnostics and defensive recovery paths.

- Earlier mechanism pass: stronger passive spring, persistent detector ranges, robot-cleaner signal power, and electric shock effect.

- v39.16.17: fixed the undefined bodyFor reference in mechanical one-way-fence contact handling by using the canonical body velocity helper.

- v39.16.16: link rendering no longer depends on midpoint spatial visibility; bounce fences launch Tarinai without shock damage; passive springs are more under-damped and elastic.

- v39.16.16: population chart includes per-bucket births/deaths; rotators accept signed motor speed; champion personality bonuses inherit through descendants; champion-pair mate weighting is moderately reduced.
- v39.16.16: colony population chart records births/deaths, rotators accept negative motor speed, champion personality boosts inherit through descendants, champion-pair mating is slightly reduced, and one-way fence previews/pathfinding honor the passable direction.

- v39.16.16: one-way fences allow Tarinai forward crossing in swept collision; chart legend dots toggle series; wire tools attach to Tarinai/ants; energized living endpoints panic and take damage; selected data reports electrocution.