// PRAGMA MARK - Static
        public static ILootReward[] SelectRewardsForLootDropGroupId(int lootDropGroupId)
        {
            List <ILootReward> rewards = new List <ILootReward>();

            LootDropGroup dropGroup = IdList <LootDropGroup> .Instance.LoadById(lootDropGroupId);

            int selectedLootDropId = WeightedSelectionUtil.SelectWeightedObject(dropGroup.dropList).lootDropId;

            IIdList <LootDrop> lootDropList = ListFactory <LootDrop> .Instance.GetList();

            LootDrop selectedLootDrop = lootDropList.LoadById(selectedLootDropId);

            if (selectedLootDrop == null)
            {
                Debug.LogError("SelectRewardsForLootDropGroupId: failed to select lootDrop with group id: " + lootDropGroupId);
                return(null);
            }

            foreach (int rewardedLootDropGroupId in selectedLootDrop.rewardedLootDropGroupIds)
            {
                rewards.AddRange(LootManager.SelectRewardsForLootDropGroupId(rewardedLootDropGroupId));
            }

            rewards.AddRange(selectedLootDrop.RewardedLootRewards);

            return(rewards.ToArray());
        }
            private static void DrawListField(Rect contentRect, SerializedProperty property)
            {
                IIdList <TEntity> list = ListFactory <TEntity> .Instance.GetList();

                if (list == null)
                {
                    list = IdList <TEntity> .Instance;
                }

                if (list == null)
                {
                    EditorGUI.LabelField(contentRect, IdList <TEntity> .ListName() + " instance not found!");
                }
                else
                {
                    List <string> displayedOptions = new List <string>();
                    List <int>    optionValues     = new List <int>();
                    foreach (TEntity obj in list)
                    {
                        IdComponent idComponent = obj.GetComponent <IdComponent>();

                        displayedOptions.Add(string.Format("{0} - {1}", idComponent.id, IdListDrawerUtil <TEntity> .GetTitleForObject(obj)));
                        optionValues.Add(idComponent.id);
                    }
                    property.intValue = EditorGUI.IntPopup(contentRect, property.intValue, displayedOptions.ToArray(), optionValues.ToArray());
                }
            }