private void LoadCareerAbilities()
        {
            _abilities = AbilityMgr.GetAvailableCareerAbilities(_playerOwner.Info.CareerLine, 0, _playerOwner.Level);

            foreach (AbilityInfo ab in _abilities)
            {
                _abilitySet.Add(ab.Entry);
            }

            List <AbilityInfo> masteryAbilities = AbilityMgr.GetMasteryAbilities(_playerOwner.Info.CareerLine);

            foreach (AbilityInfo ab in masteryAbilities)
            {
                byte entry = (byte)((ab.ConstantInfo.PointCost - 1) / 2 - 1);
                _masteryAbilities[ab.ConstantInfo.MasteryTree - 1, entry] = ab;

                if (_activeSkillsInTree[ab.ConstantInfo.MasteryTree - 1, entry] == 1)
                {
                    _abilities.Add(ab);
                    _abilitySet.Add(ab.Entry);
                }
            }
        }