Build the per-quarter building geometry + tags (absorbs #976's footprint
subdivision into #957 — one coherent walkable-quarter deliverable):
- subdivide_block_footprints: deterministic BSP of each 128x128-tile block into
variable axis-aligned building plots (D-229 fast-path). Lot size + setback
scale with D-220 density (Frontier -> few big lots/wide gaps; Compressed ->
many small lots/shared walls); the D-233 BulkClass roofed-coverage fraction
decides building-vs-interstitial. morphology is wired in for the D-234
waterfront/street layer (needs Layer-1 terrain water-adjacency threaded up).
- assign_all_block_tags: subdivides + tags every non-reserved block's footprints
via the #957 derivation helpers, populating QuarterWorldState.block_tags in the
GenerateSkeleton plan-phase (D-230). Reserved blocks get no standard fill.
- Remove the write-only BlockSkeleton.era String stub - construction era now
lives per-footprint on BuildingPropertyTag.era (typed ConstructionEra).
All integer-deterministic (D-010). 5 new tests. Doors stay Vec::new() (#979).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
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