689c478a7f
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>
18 lines
827 B
JavaScript
18 lines
827 B
JavaScript
// world/_fixture.js (Lane A) — DEV FIXTURE, not shipping content.
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// Lane C owns real levels (js/levels/*.json). This exists so spline.js's headless selfcheck
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// and dev.html can exercise the world before/without C's data: multi-segment, curviness
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// sweep, a biome change, and an arena. Delete the day C's L2 + registry land.
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export const FIXTURE = {
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id: 'A_FIXTURE',
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name: 'Lane A fixture canal',
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seed: 20260716,
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segments: [
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{ biome: 'esophagus', length: 300, radius: { base: 10, wobble: 0.25 }, curviness: 0.55, flow: 14 },
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{ biome: 'esophagus', length: 240, radius: { base: 12, wobble: 0.35 }, curviness: 0.95, flow: 11 },
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{ biome: 'stomach', length: 120, radius: { base: 16, wobble: 0.30 }, curviness: 0.20, flow: 4 },
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],
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arenas: [{ at: 620, radius: 55, biome: 'stomach' }],
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events: [],
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};
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