svcorelib/src/functions/seededRNG/randomSeed.js

Core library used in the projects of Sv443 and the Sv443 Network. Contains tons of miscellaneous QoL features.

const randRange = require("../randRange");

function generateRandomSeed(digitCount = 10)
{
    let seed = "";

    for(let i = 0; i < digitCount; i++)
        seed += Math.floor(randRange(0, 9)).toString();

    if(seed.startsWith("0"))
    {
        // this is impossible to test reliably since it is dependant on random chance, so it is skipped in the istanbul tests
        /* istanbul ignore next */
        seed = seed.substring(1); // make sure the first item is not 0, so we can parse it as an int without losing the first digit
        /* istanbul ignore next */
        seed = randRange(1, 9).toString() + seed.toString();
    }

    return parseInt(seed);
}

module.exports = generateRandomSeed;