slaguru666andClaude Opus 5
ad5fd57568
Reading a narrated supporter fight showed it being hit on armR and head. It has wings; it
has never had arms. Three defects, all in the pipeline every published number comes from.
1. It located hits by species, not body plan — simulate.mjs read defender.species where
the game writes spec.bodyPlan ?? spec.species ?? "baseline" into speciesProfile
(build-packs.mjs:294). The barghest, kelpie and church grim were fought on two legs
with arms, and the supporter with no wings, so the fight its tactics call the one the
agents can win could not occur in a measured fight.
2. Armour was one scalar for the whole creature, and the harness's locations had no
armour field. Bare wings, the grounded halving and the vital exemption — R-254 and
R-255 — were invisible to every number. Worn armour was summed the same way, which put
a stab vest on a cleaner's head.
3. Nothing was ever grounded: a wing could be ruined and the creature kept flying.
Fixed in the game's order — locate, then apply what that location carries, every term
imported from rules.mjs. A ruined wing calls groundedPlanFor and the wounds carry across
by severity through remapLocationDamage, the function _preUpdate uses.
A bug of mine no guard would have caught: remapLocationDamage returns { damage, moved,
rescaled } and my first draft passed the whole object where a damage map was expected, so
every wound a creature carried was forgiven the moment it came down. check-lethality would
have passed it — fewer wounds means a longer fight, which reads as a number moving, and
this commit moves numbers. Found by probing a landing by hand.
20 of 47 creatures moved, 18 deadlier and 2 less. The supporter goes 69.3% -> 25.1% wiped,
3.38 -> 2.16 down, second deadliest to fourth: it was being measured as a 30-hit-point
creature in uniform armour 9 that could not be grounded. The small rises elsewhere are the
party's armour no longer covering locations it never protected.
check-focus then caught the page overclaiming, which is what it is for: focus fire still
helps in all 30 but only 28 clear their own noise where 31 of 31 did. The guard was
asserting more than the page needs — the bestiary prints that count from the artifact and
cannot overstate it — so it now checks only what the page asserts outright, and the page
rewrote itself to "in 28 of them".
Both baselines re-recorded. Minor version, not a patch: the published numbers changed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
199 lines
9.2 KiB
Markdown
199 lines
9.2 KiB
Markdown
# THE CUSTODIANS
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*A Basic Roleplaying game of crossings, as a Foundry VTT system.*
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A drab British government agency deals with **crossings**. Reality keeps a record of
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what belongs where, and it can be made to get it wrong. Agents are civil servants:
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they carry warrant cards and cordon tape, they file in triplicate, and the thing that
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makes them dangerous is that they know how the record works.
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The tone is bureaucratic horror. Most cases close with an arrangement rather than a
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fight, and the supernatural is a filing error somebody committed on purpose.
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---
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## Installing
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**In Foundry:** *Game Systems → Install System → Manifest URL*
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```
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https://gitea.timevans.uk/slaguru666/RingBRP/raw/branch/main/system.json
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```
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**Or by hand:** clone this repository into your Foundry data directory as
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`Data/systems/ringbrp`, then restart Foundry.
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```bash
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git clone https://gitea.timevans.uk/slaguru666/RingBRP.git ringbrp
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```
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Requires **Foundry v13+** (verified against v14.364). No modules are required. Dice So
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Nice works if you have it, using your own dice — the system ships no dice skins and does
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not touch anybody's dice settings.
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### Deploying to a remote Foundry server
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The built compendia in `packs/` **are committed on purpose**, so a remote server needs
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nothing but the files:
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```bash
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cd /path/to/foundrydata/Data/systems
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git clone https://gitea.timevans.uk/slaguru666/RingBRP.git ringbrp
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# restart Foundry
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```
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`node_modules/` is *not* committed. You only need it if you intend to rebuild the
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packs or regenerate art on that machine:
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```bash
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npm install # pulls classic-level, used to write the LevelDB packs
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npm run build # rebuilds packs/ from tools/content.mjs
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npm run check # the twelve guards; the build refuses to run if they fail
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```
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To update a deployed server: `git pull` and restart Foundry. If the pull touches
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`packs/`, Foundry must be **stopped** first — LevelDB will not tolerate its files
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changing underneath a running server.
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---
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## What is in the box
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<!-- box:start -->
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|---|---|
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| **Postings** | 25, each with a key characteristic, trained skills, talents and its own kit |
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| **Trades** | 10 ordinary jobs the department recruits from, plus induction |
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| **Catalogue** | 236 items — 123 gear, 62 weapons, 32 armour, 19 vehicles |
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| **Skills / talents** | 62 skills, 19 talents |
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| **Bestiary** | 47 statblocks across folklore, horror and the far side |
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| **Eras** | modern, antique, future, anomalous — the agency is old and never abolishes anything |
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| **Icons** | 292, all generated from `tools/icons.mjs`; no external art |
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| **Starter scenario** | **BLACK PLATFORM**, a six-player action starter, importable as a single Adventure |
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| **Compendia** | pregens, NPCs, skills, weapons, armour, gear, vehicles, powers, tables, rules, the starter |
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| **Rules journal** | 13 pages, generated from `rules.mjs` so the book cannot drift from the code |
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<!-- box:end -->
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---
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## The rules, in brief
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**d100 roll-under**, banding into critical / special / success / failure / fumble.
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96–99 always fail, 00 always fumbles, and every skill has a 1% floor.
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**Reaction Lanes** replace Strike Rank. Initiative is
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`3 × max(⌈DEX/3⌉, ⌈readiness/10⌉)` less carried load, plus a d6, **re-rolled every
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round** — including the first, so the opening round is ordered like every other.
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**Coherence** runs 10 → 0 and measures how well-filed an agent is in reality. It bands
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into Anchored / Loose / Adrift / Unmoored / Displaced, and spending it is how the
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supernatural works.
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**The Quiet Arts** are deliberate misfilings, not spells. They cost Coherence, and
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they **only ever arrive from a crossing that goes wrong**.
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**Defences are graded.** A defence stops a blow of its own quality or worse outright;
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against something better it only reduces it by as many steps as it was outclassed by.
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Only a critical stops a critical.
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**Access is a record.** There is no hacking skill and nothing to break into — see
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below.
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**A weapon's fire mode is a decision.** Slow weapons shoot better and then make you
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work; fast ones offer a second shot at the cost of both; rapid ones fire bursts; beams
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can be held on the target for damage instead of hits. A weapon that cannot fire a
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burst cannot be made to.
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**Sights and lamps apply themselves.** A sight is graded by range band — a telescopic
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sight is a penalty inside ten metres — and a carried lamp buys the dark back to dim,
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never to daylight, and tells everyone where you are. Neither is a thing the player
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selects: both are facts about what is in the pack.
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---
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## Borrowed Authority — the access subsystem
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Deliberately not cyberpunk. Nobody jacks into anything.
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What an agent has is a **named credential** belonging to somebody real, with a
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**scope** of things that person could plausibly do, a **Trust** that erodes as it is
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used, and **red flags** describing how the real owner behaves.
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- **Inside its scope there is no roll.** A facilities contractor opening a plant room
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is not intrusion, it is Tuesday. It costs 1 Trust and it works.
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- **One tier beyond is a stretch** — roll, at −20 for each red flag you break. The
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system is not testing whether you are clever. It is testing whether you are
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behaving like the person whose name is on the record.
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- **Two tiers beyond is impossible at any skill.** No percentage on any sheet gets a
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contractor issuing accounts.
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- A **fumble burns** the credential, and somebody real is going to be asked about it.
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A credential is assembled, not found: up to **three dossier items, each a separate
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scene using a different skill, at most one of them at a keyboard**. Items make the
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credential better, never the roll easier.
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**AI** is a posture on the target rather than an opponent — a *gatekeeper* raises what
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counts as routine, an *analyst* writes a new red flag every time you stretch, an
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*asset* stands in for a dossier item.
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And you may spend **Coherence** to widen a scope, because reality can be made to
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remember that the person always held that duty. It works. It always works. Push a
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credential past what its Trust will carry and your file and theirs converge one step,
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and nothing in this game spends anything to converge them back.
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---
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## Repository layout
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```
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ringbrp.mjs the system: sheets, engine, hooks (~5,500 lines)
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rules.mjs THE SINGLE AUTHORITY for every rule formula
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system.json Foundry manifest
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template.json data model for every Actor and Item type
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templates/ Handlebars sheets
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styles/ one stylesheet
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lang/en.json all user-facing text
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icons/ fonts/ art/ generated art
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packs/ built LevelDB compendia (committed — see Deploying)
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tools/
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content.mjs the catalogue: skills, weapons, armour, gear, vehicles, NPCs
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build-packs.mjs builds packs/ — runs the twelve guards first and refuses on failure
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make-icons.mjs draws all 231 icons
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rules-text.mjs generates the rules journal FROM rules.mjs
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mission.mjs the case generator
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mission-tables.mjs its content tables
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check-rules.mjs guard: no rule may be defined twice
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check-kits.mjs guard: every posting's kit must exist and be usable
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check-lang.mjs guard: no localisation key may be both a value and a branch
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check-lethality.mjs guard: no creature may quietly change what it does to a party
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check-rollable.mjs guard: no clue may hide behind a roll nobody present can make
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docs/REVIEW_LOG.md the design and defect log, R-1 onward
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```
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### The one rule this codebase enforces on itself
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**No rule formula may exist in more than one place.** Everything lives in `rules.mjs`,
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and `tools/check-rules.mjs` fails the build if a formula is restated, if an alias
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stops being identity-equal to what it aliases, if a constant is re-declared as a
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literal, or if an exported rule has no spot-check. The packs used to be built under
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one set of numbers and played under another; this makes that impossible to ship.
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The build runs all twelve guards before it writes anything:
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<!-- guards:start -->
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```
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check-rules: OK — 110 rules, 38 files scanned, 3 aliases + 46 constant sets checked, 395 formulas verified
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check-kits: OK — 25 roles, 10 trades, 218 catalogue items, every kit key resolves, every posting can use what it carries, every loadout distinct
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check-lang: OK — en.json, 1018 keys, no leaf/branch collisions
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check-templates: OK — 19 templates compile
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check-behaviour: OK — 76 behavioural tests
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check-scenarios: OK — 12 scenario files, 79 mechanic tags, every skill named resolves against 62 catalogue entries
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check-rollable: OK — 78 rolls across 12 scenario files, every one reachable at 25% or better by somebody present
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check-creatures: OK — 102 actor specs across 8 sources, every characteristic, skill, kit key, talent, species and style resolves, no duplicate keys
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check-anatomy: OK — 5 body plans, 36 locations, d20 complete in both modes, every location drawn, every kind handled and destructible, 20 plan changes carried 432 wounds with their severity intact, 1 flyer(s) with a survivable landing
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check-lethality: OK — 47 creatures, every one fighting exactly as recorded against the frozen party
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check-focus: OK — focus fire measured against 30 packs, helps in all of them, 28 of them by more than their own noise
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check-bestiary: OK — 47 creatures, the document matches the game
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```
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<!-- guards:end -->
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