when_projectile_hits()
{
    float damage = calculate_stat(projectile.damageStat);

    if(how_many_times_chained > 0)
    {
        float falloff = calculate_stat_ignore_base(projectile.falloffStat) * (1 / BASE_FALLOFF);
        falloff = 1 / falloff;
        falloff = min(1, falloff);
        falloff = max(0, falloff);
        float nerf_based_on_chains = powf(falloff, how_many_times_chained);
        damage *= nerf_based_on_chains;
    }
}

calculate_stat_ignore_base(Stat stat)
{
    stat.base = 1;
    return calculate_stat(stat);
}