gistfile1.js

function getRandomRepresentation(number, stats) {
    var std = 2;
    // We need 3 games to make stats
    if (stats.length < 5) {
        log("Not enough data to determine random representation", 'debug');
        // We dont have all the data
        // If largestPrimeFactor(number) > 15, avoid tables?
        if (number == 1) {
            // 1 will cause fractions if used for x*y format
            return rand(1,2);
        }
    }
    // (100/(summen af korrektheds procenterne for repræsentationerne)*(korrekthedsprocenten for den give repræsentation man ønsker chancen for))
    // Should rely on user performance
    var chance = rand(1,100);
    var c = 0, tmp = 0;
    log("Rolled chance = " + chance, 'rnd');
    for (var key in stats.stats.reps) {
        if (key == 'total')
            continue;
        tmp = (100/stats.stats.reps.total.correct) * stats.stats.reps[key].correct;
        log("tmp = " + tmp + " with c = " + c + " for rep = " + key, 'rnd');
        if (tmp == 0) {
            return key;
        }
        if (chance <= c + tmp) {
            log("Rep = " + key + " it is", 'rnd');
            return key;
        } else {
            c += tmp;
        }
    };
    // Should never happen
    log("Fallback to random. Had chance = " + chance + " with c = " + c, 'error');
    return rand(1,3);
}