feat: Dee Sanction challenge/verdict rule-pack

src/dice/rulepacks/dee-sanction.js

@@ -0,0 +1,14 @@
+// The Dee Sanction: roll one Ability die (d4-d12). 3+ = success, 1-2 = Falter.
+export const deeSanction = {
+  id: 'dee-sanction',
+  label: 'Dee Sanction (Challenge/Verdict)',
+  params: [],
+  interpret(results, params = {}) {
+    const value = results[0]?.value ?? 0;
+    const sides = results[0]?.sides ?? 0;
+    return { value, sides, success: value >= 3, falter: value <= 2 };
+  },
+  summary(v) {
+    return v.success ? `${v.value} → success` : `${v.value} → FALTER`;
+  },
+};

src/dice/rulepacks/index.js

@@ -2,8 +2,9 @@ import { yearZero } from './year-zero.js';
 import { cocD100 } from './coc-d100.js';
 import { vanityD6 } from './vanity-d6.js';
 import { panicGlory } from './panic-glory.js';
+import { deeSanction } from './dee-sanction.js';
 
-const packs = new Map([[yearZero.id, yearZero], [cocD100.id, cocD100], [vanityD6.id, vanityD6], [panicGlory.id, panicGlory]]);
+const packs = new Map([[yearZero.id, yearZero], [cocD100.id, cocD100], [vanityD6.id, vanityD6], [panicGlory.id, panicGlory], [deeSanction.id, deeSanction]]);
 
 export function getRulePack(id) { return packs.get(id) || null; }
 export function registerRulePack(pack) { packs.set(pack.id, pack); }

tests/dice/dee-sanction.test.js

@@ -0,0 +1,22 @@
+import { describe, it, expect } from 'vitest';
+import { deeSanction } from '../../src/dice/rulepacks/dee-sanction.js';
+import { getRulePack } from '../../src/dice/rulepacks/index.js';
+
+const die = (sides, value) => [{ sides, value }];
+
+describe('dee-sanction rule-pack', () => {
+  it('treats 3+ as success on any ability die', () => {
+    expect(deeSanction.interpret(die(8, 3)).success).toBe(true);
+    expect(deeSanction.interpret(die(12, 12)).success).toBe(true);
+  });
+  it('treats 1-2 as a Falter', () => {
+    expect(deeSanction.interpret(die(8, 2)).falter).toBe(true);
+    expect(deeSanction.interpret(die(4, 1)).falter).toBe(true);
+    expect(deeSanction.interpret(die(8, 2)).success).toBe(false);
+  });
+  it('summarises and is registered', () => {
+    expect(deeSanction.summary(deeSanction.interpret(die(6, 5)))).toBe('5 → success');
+    expect(deeSanction.summary(deeSanction.interpret(die(6, 2)))).toBe('2 → FALTER');
+    expect(getRulePack('dee-sanction')).toBe(deeSanction);
+  });
+});