No description
Joey Yakimowich-Payne
b2ca2cae23Proves that descriptors using ONLY the 15 pre-existing primitive kinds
continue to parse, validate, apply, and serialize byte-identically even
after Wave 2 extended the PrimitiveKind union from 15 to 22 kinds. This
is the critical backward-compat proof: old saved descriptors in every
user library must keep working indefinitely.
Fixture: packages/chess/src/modifiers/custom/__fixtures__/legacy-descriptor.json
- 15 top-level primitives, one per legacy kind (each represented once)
- 5 nested primitives inside on-turn-start / on-capture / on-damaged /
conditional(then+else) → 20 total nodes, depth 2
- Zero Wave-2 kinds (explicit)
Test: legacy-descriptor.test.ts
- parse: parseCustomModifierDescriptor returns version=1, kind set >= 5,
every kind in legacy set
- validate: validateCustomDescriptor returns {ok: true}
- apply: asserts expected facts on the fixture pawn after
applyCustomDescriptor — HpBonus, DirectionAdditions, CaptureFlags,
ReflectDamagePercent, BlockedMoveTypes, RangeBonus, PromotionOverride,
AuraSpec, and all four hook arrays (OnTurnStartHooks, OnCaptureHooks,
OnDamagedHooks, ConditionalHooks)
- round-trip: JSON.parse(JSON.stringify(descriptor)) deep-equals the
raw fixture JSON
Note: applyCustomDescriptor recursively walks childPrimitives() at
apply time, so nested trigger primitives execute immediately IN
ADDITION to seeding their hook attrs. Expectations reflect this
end-to-end contract (Hp=11 not 10; HpBonus=4 not 2; etc.).
Read approach: fs.readFileSync + import.meta.url (tsconfig lacks
resolveJsonModule).
|
||
|---|---|---|
| .github/workflows | ||
| .sisyphus | ||
| docs | ||
| packages | ||
| scripts | ||
| .gitignore | ||
| eslint.config.js | ||
| lefthook.yml | ||
| LICENSE | ||
| package.json | ||
| playwright.config.ts | ||
| README.md | ||
| tsconfig.base.json | ||
| tsconfig.json | ||
| vitest.workspace.ts | ||
@paratype
A Doorenbos-style Rete II rules engine for TypeScript games, with an authoritative WebSocket chess demo.
Packages
packages/rete— Rete II engine corepackages/chess— Browser chess demo (React + Vite)packages/server— Authoritative Bun WebSocket server
Docs
- SPEC.md — Engine specification
- PHASES.md — Development phases & perf budgets
- RULES.md — Chess rule presets
- PROTOCOL.md — WebSocket message protocol
Getting Started
bun install && bun run check