@randsum/5e/dist/src/roll5e.js

A flexible, type-safe dice roller for building 5e-compatible applications

import { roll } from '@randsum/dice';
export function roll5e({ modifier, rollingWith }) {
    const rollArg = {
        sides: 20,
        quantity: generateQuantity(rollingWith),
        modifiers: { ...generateModifiers(rollingWith), plus: modifier }
    };
    return roll(rollArg);
}
function generateQuantity(rollingWith) {
    switch (rollingWith) {
        case 'Advantage':
        case 'Disadvantage':
            return 2;
        default:
            return 1;
    }
}
function generateModifiers(rollingWith) {
    switch (rollingWith) {
        case 'Advantage':
            return {
                drop: { lowest: 1 }
            };
        case 'Disadvantage':
            return {
                drop: { highest: 1 }
            };
        default:
            return { drop: {} };
    }
}