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jpmschweitzerandClaude Opus 4.7 d418eba8bb feat(simulation): Layer-1 topography pipeline — features, sub-biome, orchestrator (#953 )

Wire the empty-world topography cascade (D-208/209/210):
- generator.rs: add SubBiomeVariant (11 variants, D-210) + sub_biome and
  terrain_modification_cost fields on GeographicAttractor; AttractorType
  is now Copy.
- features.rs (new, D-209): extract the 7 attractor tags from heightmap +
  drainage. Coast/lake derived from the heightmap (D-209/D-223
  reconciliation — markers are names-only now, no polygons). Deterministic
  (sorted seeds, integer keys, bucket-grid thinning); strength-capped at
  MAX_ATTRACTORS preserving type diversity. Shared TerrainAnalysis
  (masks/slope/moisture/percentile) feeds both extraction and sub-biome.
- subbiome.rs (new, D-210): classify sub-biome + terrain_modification_cost
  from elevation/slope/moisture/latitude. Volcanic stays in the enum but
  is not emitted (no heightmap signal).
- layer1.rs (new): run_layer1 orchestrator + attach_feature_names (D-223
  pool names to largest rivers / Alpine peaks).
- attractor_matching constructors updated for the new fields.

76 atlas tests pass; run_layer1 determinism verified.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-23 00:35:39 +02:00

content

refactor(simulation): strip archetype trace + HeritageRoot per cascade (#877 , #878 )

2026-04-22 08:55:48 +02:00

data

chore(db): regen systems.db — names-only atlas pool, empty geometry (D-223 #951 )

2026-05-22 23:29:26 +02:00

sr-voice

fix(engine): offload Gemma to GPU by setting n_gpu_layers=999 (#833 )

2026-04-15 23:11:14 +02:00

src

feat(simulation): Layer-1 topography pipeline — features, sub-biome, orchestrator (#953 )