feat: constellations preset (seeded asterisms, template-held) - #59
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Add InitMode::Constellation variant, SimConfig::constellation_restamp_floor field, Simulation::constellation_template, build-once layout in new()/reset(), trail pre-seed via max-combine, and extend init_species with constellation_layout param + dispatch arm. Add non-exhaustive arms in runner.rs and explorer.rs.
`effective_init_mode` was calling `InitMode::random(&mut thread_rng())` for Constellation, making every auto-reset and manual restart choose a different init layout. Now that the constellation figure is selected by the seeded sim RNG inside `Simulation::new`, the reset path is fully deterministic. The function becomes a pass-through and the `preset` argument is dropped at the function and all three call sites. Stale doc comments updated accordingly.
Add "constellationstatic" to the PRESETS array in preset_config_snapshot.rs and regenerate tests/golden/preset_configs.txt. The constellation block now reflects init_mode=Constellation (changed from Random), and a new constellationstatic block appears with restamp_floor-discriminated scalars. Fix two clippy field_reassign_with_default errors in constellation test helpers in src/simulation/mod.rs (use struct-init syntax). Full gate: 1017 lib + 56 visual_regression + 19 doc tests, all green.
…tars, retune presets Template values (0..1) are now multiplied by max_brightness at every stamp site (new(), reset(), update()) so the pre-seeded figure renders at full trail-brightness range instead of ~3% white-point. Star sigma tightened to 2.2px; edge peak/sigma reduced to 0.45/0.55 for hairline linework. ConstellationStatic: restamp_floor 1.0, decay 0.92, deposit 0.6, count 2500. Constellation drift: decay 0.95, deposit 1.5, count 5000, floor stays 0.0. Test rewritten to assert held > 1.5 (proves scaling happened) and that drift decays strictly below the static floor after 20 frames.
…t, richer canvas-filling figures - Render: both Constellation + ConstellationStatic switch Braille→Points charset, add IntensityMapping::linear_log_split(10.0), explicitly pin auto_normalize=false - ConstellationStatic sim retune: max_brightness 30→10, deposit_amount 0.6→0.3 (top-level and species[0]), count 2500→2000 - fit_to_grid margin 10%→5% so figures use more of the canvas - Replace 6 figures (drop Cassiopeia/Crux): Orion(10s/11e) Ursa Major(10s/10e) Scorpius(10s/9e) Cygnus(7s/6e) Leo(9s/9e) Gemini(11s/10e) - Update test: both_constellations_render_braille_cosmic → both_constellations_render_points_cosmic (asserts Points/Cosmic/false/lin-log-split) - Regenerate preset_configs.txt golden (constellationstatic block only)
tamirelazar
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Jun 24, 2026
origin/dev advanced past the first merge with the constellations preset. Sole conflict was a both-sides test addition in runner.rs: keep the UI-system Task-15 ambient-mode tests alongside dev's constellation_reset_is_now_stable test.
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Constellations preset
Adds a single
constellationspreset (quick-key2, aliasconstellation) that seeds agents as real star asterisms and holds the figure crisp via a continuous template re-stamp.What it does
src/simulation/constellations.rs: 6 hand-placed canvas-filling asterisms (Orion, Ursa Major, Scorpius, Cygnus, Leo, Gemini), picked via the seeded sim RNG, fit to grid aspect, rasterized to an anti-aliased template (weighted star glows + thin edge lines).Simulation::new/reset()pre-seed the trail map (figure visible at frame 1); a per-frame post-decaymax-combine re-stamp (gated bySimConfig::constellation_restamp_floor) holds it.max_brightness.Pointscharset,Cosmicpalette,linear_log_split(10)intensity mapping, fixed (non-auto) low white-point.effective_init_modemade a deterministic pass-through (removed athread_rng()reset re-roll).Notes
constellationspreset (the earlier drift/static A/B variants were collapsed into this single winner during review).Rng; same seed → identical figure, agent layout, and pre-seeded trail acrossnew()andreset().Tests
constellationsblock).cargo fmt+cargo clippy --all-targets --all-features -D warnings+cargo test(1022 lib + 56 visual_regression + 19 doc, 0 failed).