private double ApplyAffinityBonuses(double baseDamage, BattleCharacter defender, SkillEffectAffinities effectAffinities)
    {
        var nonZeroAffinities = effectAffinities.GetNonZeroAffinities();

        if (nonZeroAffinities.Count == 0)
        {
            return baseDamage;
        }

        var modifiedDamage = 0d;

        foreach (var kv in nonZeroAffinities)
        {
            var resistanceEffect = 1d - defender.GetAffinityResistance(kv.Key);
            modifiedDamage += baseDamage * resistanceEffect * kv.Value;
        }
        return modifiedDamage;
    }