name: The Settled Reach
# Version scheme: 0.{phase}.{n} — phase = active Development Cascade phase (D-166).
# Phase 4 (deterministic world generation) is active.
# 0.4.1-tagged step canvases carried lake_margin_q's flat absolute-ceiling
# semantics (pre-per-basin-normalization) and were written to real disk
# caches during T-1188 eyeball runs — 0.4.2 forces those entries to miss.
# 0.4.2-tagged Global/Region-rung step canvases sampled the coastline
# position raw (no coast_warp_px) — T-1160 applies the warp at orbital
# sampling, changing orbital-rung canvas bytes (elev_q/temperature_dc/
# moisture_q shift near coasts) — 0.4.3 forces those cached entries to miss.
# 0.4.3-tagged canvases predate the D-255 extent inversion (a rung now fixes
# the canvas EXTENT and the gridunit spacing falls out, rather than the
# reverse). District/Quarter/Block/Chunk kept the same 960x540 cell counts
# through that change, so their cache keys are byte-identical while a District
# canvas now covers 3.6 km of ground instead of 1,966 km — a warm cache would
# silently serve pre-inversion canvases. 0.4.4 forces those entries to miss.
# 0.4.4-tagged GLOBAL canvases are all 2x1 — `serve_step_canvas_request` was
# still zeroing Global's wire extent (a pre-extent-inversion sentinel), so
# every Global request resolved to a two-cell canvas regardless of viewport.
# Those entries were also cached under a key that ignored extent, so they
# answered every later request forever. 0.4.5 forces them to miss.
# 0.4.5-tagged canvases carry pre-T-1237 river courses: one course per D8 HOP
# rather than one per river (build_paths walks whole headwater->mouth rivers
# now). The hop-shaped entries survived that fix because it changed only server
# and client code, never this version — so Ferrath Global replayed 375 fragments
# with a 106 km longest run, all of them below D-261's read-as-a-line floor, and
# drew NOTHING, while a cold cache on the same build produced 73 whole rivers
# with a 1,644 km trunk and drew 18. Diagnosed as T-1239. 0.4.6 forces them to
# miss.
#
# THE PATTERN, now four bumps deep: a change to how a canvas is GENERATED is
# only half the change — the other half is this line. Nothing enforces the
# pairing, so a canvas-generation commit that leaves this version alone ships a
# silent regression that reproduces only on machines with a warm cache. The
# capture harness no longer hides it (tests/run-visual isolates user:// per run,
# T-1239), but a real player's cache is still governed by this number alone.
# 0.4.7 carries NO canvas-generation change — it is the gate that enforces the
# pairing described above, arriving (T-1242). tooling/canvas_sources.py lists the
# paths, tooling/check-canvas-version rejects a push that touches them without
# moving this line, and the registry includes ITSELF so that narrowing it and
# changing a canvas file in one push still demands a bump. That self-inclusion is
# why this bump exists: adding the registry trips its own rule. The version is
# spent rather than special-cased, because "this change is obviously harmless" is
# the reasoning that produced all five regressions above.
# 0.4.8 also carries NO canvas-generation change: a test-only edit to
# composition.rs (its conservation assertion was a tautology) tripped the T-1242
# gate, because that gate is path-based and cannot tell test code from generator
# code. Second no-op bump in two days — the false-positive rate is real, and is
# the price of the ruling that a false negative costs a week. Revisit if it
# becomes noise; do NOT add an override to dodge it.
# 0.4.9 is a REQUIRED bump, not a gate formality (T-1213). The disk cache stores
# the DECODED canvas, and the decode was silently dropping the `relief_q` plane —
# so every 0.4.8-and-earlier entry physically lacks the field, and would keep
# rendering the deep rungs as a flat wash even against a build that reads it.
# This is the first bump in the series where a warm cache is wrong about CONTENT
# rather than merely stale.
version: 0.4.9
repository: settled-reach


description: >
  Top-down life-sim set in an original science fiction universe. Asymmetric
  information and occlusion-based perception from a single-character
  perspective, with a Rimworld-style storyteller. Systems interactions like
  The Sims, combat and visuals like single-character Rimworld, world
  generation inheriting from Dwarf Fortress and NMS, economy inspired by
  X4/EVE. Every system is interactable but ignorable — the world is alive
  for any given run.

setting: >
  The Settled Reach — a network of star systems connected by Founder Gates.
  Neural lattice technology enables soft immortality, forking, and
  re-embodiment.

development: >
  Built outside-in along the six-phase Development Cascade (D-166): wiki
  content and star map, economics layer, planetary maps and atlas,
  deterministic world generation (active), player control and in-world
  rendering, room-level detail.

architecture:
  client: Godot 4 (GDScript)
  server: Rust with bevy_ecs (simulation server)
  transport: subprocess/IPC via TCP with MessagePack serialization
  protocol: length-prefixed MessagePack frames (4-byte big-endian)
  determinism: ChaCha20 seeded RNG, deterministic tick processing

simulation:
  tick_rate: 10 ticks per game-minute
  time_model: 4 day phases (Morning, Afternoon, Evening, Night)
  grid: dual-scale (0.5m simulation tiles, 1m visual tiles)
  visibility: symmetric shadowcasting + forward/peripheral/blind vision cone
  knowledge: per-entity knowledge graphs with confidence decay

content:
  format: YAML with JSON Schema validation
  structure: campaigns/systems/stations/districts hierarchy
  npcs: 10-axis model (7 essential + 3 supporting) with CombatCapability
  dialogue: tagged line pools with 4-layer relational filtering
  population: 30% flat / 50% mundane triangles / 20% intrigue-entangled