NilsBriggen
9647e6b3d6
- Dice notation: exploding (Nd6!) and reroll-below (Nd6r2), capped + tested - Degrees of success / roll-vs-DC (PF2e ±10 + nat 20/1 steps; 5e crit on nat 20/1) - Global roll tray (shared store + RollTray in layout) with animated result + degree - Roll from the character sheet: skills, saves, and attack to-hit/damage are clickable and post to the tray + history (rollAndShow/rollCheck helpers) - Saved roll macros per campaign (persisted) on the Dice page 10 new unit tests (notation explode/reroll, degrees), interactive-dice e2e. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
45 lines
1.5 KiB
TypeScript
45 lines
1.5 KiB
TypeScript
import type { SystemId } from '@/lib/rules';
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export type Degree = 'critical-success' | 'success' | 'failure' | 'critical-failure';
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export const DEGREE_LABEL: Record<Degree, string> = {
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'critical-success': 'Critical Success',
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success: 'Success',
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failure: 'Failure',
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'critical-failure': 'Critical Failure',
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};
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export const DEGREE_COLOR: Record<Degree, string> = {
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'critical-success': 'text-success',
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success: 'text-success',
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failure: 'text-warning',
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'critical-failure': 'text-danger',
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};
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/**
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* Evaluate a d20 result against a DC.
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* - PF2e: ≥DC+10 crit success, ≥DC success, ≤DC-10 crit failure; a natural 20
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* improves the degree one step and a natural 1 worsens it one step.
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* - 5e: success/failure vs DC, with natural 20/1 mapped to critical results.
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*/
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export function degreeOfSuccess(input: {
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total: number;
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dc: number;
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system: SystemId;
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/** the natural face of the d20, if known */
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natural?: number | undefined;
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}): Degree {
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const { total, dc, system, natural } = input;
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if (system === 'pf2e') {
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let step = total >= dc + 10 ? 2 : total >= dc ? 1 : total <= dc - 10 ? -1 : 0;
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if (natural === 20) step += 1;
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else if (natural === 1) step -= 1;
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step = Math.max(-1, Math.min(2, step));
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return step === 2 ? 'critical-success' : step === 1 ? 'success' : step === 0 ? 'failure' : 'critical-failure';
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}
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// 5e
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if (natural === 20) return 'critical-success';
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if (natural === 1) return 'critical-failure';
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return total >= dc ? 'success' : 'failure';
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}
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