f9517f14ab
bible.js: band ranges MIRRORED from E's pipeline thresholds (record 8/25/60 · book 5/15/40 · toy 6/20/50) — derived in JS off the price_band labels the packs already carry, NO pack re-emit (charter risk #3 never opens). guideText renders a RANGE ('guide $8–24' / '$60+'), never a verdict — the card never says gem; spotting asking-under-guide is the player's skill. dig.js: parody sleeves roll seeded bands (25/45/22/8) + a 10% gem on collector/grail only, asking strictly under the keeper's own bandLow offer (collector $2–9 vs $12 · grail $5–20 vs $30) — margin by construction; fixed 9-draw stream per item; rare ≡ grail (matches real packs). Real offers carry band off price_band — and real asking always sits INSIDE its band (the band derives FROM the price), so with the §9.1 basis swap every real round trip stays strictly negative: the no-pump gate holds untouched, structurally. open({gone}) omits pulled slots AFTER the draw (R27 pick-then-omit, zero collateral; o.i survives filtering — identity preserved). currentOffers() honest surface for F's gate. sell.js: the §9.1 basis swap EXECUTED exactly as pre-ratified — sellOffer(sellBasis(entry)) = min(bandLow−1, max(1, floor(bandLow·0.5))) when banded; alpha-era entries (no band) keep the pricePaid basis and sell exactly as before. The sell card carries the guide line too.
59 lines
3.4 KiB
JavaScript
59 lines
3.4 KiB
JavaScript
// PROCITY Lane C — bible.js [v7.0-beta wave 1, R32 — THE GUIDE + THE GEM (charter system #3)]
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// The in-game price guide: thriftgod's BIBLE concept as a VALUE BAND per item. The band is the
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// 90s guide book, not an oracle — it names a range ("guide $25–59"), never a verdict. A **gem**
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// is an item ASKING under its band's low edge; spotting one is the player's skill, so nothing in
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// any UI ever says "gem".
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//
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// THE DERIVATION RULING (R32): band NUMBERS mirror Lane E's pipeline thresholds
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// (pipeline/build_stock_pack.py price_band(): record 8/25/60 · book 5/15/40 · toy 6/20/50 —
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// duplicated verbatim in godverse_stock.py, validated by validate_pack.py). We derive ranges in
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// JS from the band LABEL the packs already carry instead of re-baking band data into atlases —
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// so charter risk #3 (a re-emitted pack orphaning owned skus) never opens. If E's thresholds
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// move, this table moves with them in the same commit (the two files name each other).
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//
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// THE STRUCTURAL CONSEQUENCE (why the no-pump law survives the beta, LANE_C_PUB §9.1):
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// real/mint pack items derive `price_band` FROM `price`, so real asking always sits INSIDE its
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// band ⇒ bandLow ≤ asking ⇒ sellOffer(bandLow) ≤ bandLow − 1 < asking: every real round trip
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// stays strictly negative with the basis swapped. Only PARODY stock (proceduralSleeves) rolls a
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// seeded under-band gem — and per-day scarcity (the save's `pulls`) makes each gem profit ONCE.
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// Growth is bounded by finds, not arbitrage loops — charter law #2, made structural.
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//
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// Zero DOM, zero draws, zero fetch, zero storage: a pure table + pure functions. ?classic=1 /
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// ?dig=0 never import a caller, and importing this module alone has no effect at all.
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// kind → band → [low, high]; `high: null` = open-ended (the card renders "$60+").
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// Lows/highs are E's threshold edges: a band [t0, t1) renders as $t0–(t1−1).
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export const BANDS = {
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record: { bargain: [2, 7], standard: [8, 24], collector: [25, 59], grail: [60, null] },
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book: { bargain: [1, 4], standard: [5, 14], collector: [15, 39], grail: [40, null] },
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toy: { bargain: [2, 5], standard: [6, 19], collector: [20, 49], grail: [50, null] },
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};
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export const BAND_ORDER = ['bargain', 'standard', 'collector', 'grail'];
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// bandRange('record','collector') → [25, 59] | null on unknown kind/band (fail-closed: no range,
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// no guide line, no basis swap — never an invented number).
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export function bandRange(kind, band) {
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const k = BANDS[kind];
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const r = k && k[String(band || '').toLowerCase()];
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return r ? [r[0], r[1]] : null;
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}
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// The guide line for a card stamp — "guide $25–59" / "guide $60+" / '' when unknowable.
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export function guideText(kind, band) {
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const r = bandRange(kind, band);
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if (!r) return '';
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return r[1] == null ? `guide $${r[0]}+` : `guide $${r[0]}–${r[1]}`;
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}
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// The sell basis for a collection entry (LANE_C_PUB §9.1, the pre-ratified beta swap): bandLow
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// when the entry carries a band the BIBLE knows, else the alpha basis (pricePaid) — so every
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// alpha-era find (no band field) sells exactly as it did before this round. The sellOffer()
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// CLAMP SHAPE is sell.js's and survives untouched; this function only chooses the number fed in.
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export function sellBasis(entry) {
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if (entry && entry.band) {
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const r = bandRange(entry.type, entry.band);
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if (r) return r[0];
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}
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return entry ? (entry.pricePaid != null ? entry.pricePaid : entry.price) : 0;
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}
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