Implements THE WORLD CONTRACT (TECH.md) in web/js/world/; drop-in for the stub. boot.js now runs this on C's L2_esophagus (3600u, hash cefc4f83), zero console errors. - spline.js: centreline + arclength LUTs + parallel-transport frames + radius law + peristalsis phase + project() + hash(). No three.js import, so qa can run its 14-assertion selfcheck headless. - curviness is solved from a curvature budget, not authored as an amplitude: the pinch guard caught the tube folding through itself on a wide+curvy join (turn radius 9.9 vs tube radius 17.2). C can no longer author a pinch. - peristalsis: global OMEGA, k(s) = OMEGA/flow(s), phase K(s) = integral k ds. A crest therefore travels at exactly the local flow speed, so "surf the crest" == "ride the current". Esophagus wave amp 0.9 -> 1.4 (measured): moves wallRho for Lane B. - tube.js: chunked streaming, seams aligned to biome joins, arenas own their s-span. - arena.js: displaced icosphere shells v0 (three's polyhedron detail is 20*(detail+1)^2, not 20*4^detail — 720 tris was far too coarse); fog sized to the room, since biome fog tuned for 100u corridors renders C's 360u acid sea as a black rectangle. - index.js: prefers assets.texture() over get() (get returns raw JSON a shader can't eat), plus an explicit slug map — D's wall_smallint_a vs biome id small_intestine would miss silently forever under the assets-optional law. Measured (C's real L2 + D's real pack, 1920x1080, renderer.info): 8 draws worst frame (budget 150), 74k tris (500k), no geometry leak across a full sweep, <120ms load, pinch ratio 3.32. fps not claimed — the screenshot pane runs tabs hidden, pausing rAF. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| README.md | ||
GUTS — a fantastic voyage through the alimentary canal
Browser flight-combat game (three.js, zero build step). You pilot ENDO-1, a microscopic probe, mouth → rectum through five anatomically-grounded biomes: ride peristalsis down the esophagus, cross the acid sea of the stomach, thread the villi forest of the small intestine, survive the gas swamps of the colon. Fantastic Voyage × Star Fox × Descent.
- Design: docs/GDD.md · Look: docs/ART_BIBLE.md
- Architecture + contracts: docs/TECH.md
- Asset generation: docs/PIPELINE.md
- How we work (lanes/rounds): docs/PROCESS.md — read this first if you are a lane
- Current round: docs/LANES/ROUND1_INSTRUCTIONS.md
Run it
cd web && python3 -m http.server 8140
# http://localhost:8140 — the game
# http://localhost:8140/?stub=1&dbg=1 — stub world + debug HUD (works from day 0)
No bundler, no npm, no build. ES modules + import map; three.js r175 vendored in web/vendor/
(never CDN — the game must run offline). Before you finish a session: bash tools/qa.sh.
The one-paragraph tech pitch
The whole canal is a spline. World position is (s, θ, ρ) — distance along the canal,
angle and radius in the cross-section. Tube walls are chunked extrusions along
parallel-transport frames; peristalsis and breathing are vertex-shader displacement
(cheap, squishy, everywhere); collision is an analytic radius test (no physics engine).
Caverns (mouth, stomach) switch the same controller to free 6DOF. Look is synthetic
scanner — dark endoscope void, SEM-style monochrome walls with FLUX-generated detail
textures, emissive-coded enemies. Everything is seeded + deterministic, and every asset is
optional at runtime — the game boots and plays asset-free with procedural fallbacks.
Hard laws (all lanes)
- Determinism. No
Math.randomoutsidejs/core/rng.js. Seeded RNG only. qa.sh greps. - Assets are optional. Missing texture/model/audio ⇒ procedural fallback, never a crash.
- Eyeball everything. Visual work isn't done until a screenshot is in
docs/shots/laneX/. - Perf budget: ≤300 draw calls, 60 fps on M-series / mid laptop. Measure via
window.DBG. - Free-first. Local MODELBEAST generation before any paid API; fal.ai is a gated fallback (John's go). See PIPELINE.md.
- Git: stage only your exact paths, commit + push each session, never
git add ..
Deploy
Target: partly.party (static). Not wired yet — when it's time, consult the deploy-map skill
and run ship-check first. Origin: ssh://git@100.71.119.27:222/monster/guts.git.