AssignArmorLevel() method

        /// <summary>
        /// Assign a final AL value based upon tier
        /// Based upon http://acpedia.org/wiki/Loot/Tier_7_Pre2013#Max_Armor_Levels
        /// and http://acpedia.org/wiki/Loot/Tier_8#Maximum_Armor_Levels given the base AL values on the weenies
        /// Assumes that the Olthoi Armor pieces have been normalized to a smaller baseline value
        /// </summary>
        /// <param name="wo"></param>
        /// <param name="tier"></param>
        /// <param name="armorType"></param>
        /// <returns></returns>
        private static WorldObject AssignArmorLevel(WorldObject wo, int tier)
        {
            var baseArmorLevel = wo.GetProperty(PropertyInt.ArmorLevel) ?? 0;

            if (wo.ArmorType != null && wo.ClothingPriority != (CoverageMask)CoverageMaskHelper.Underwear)
            {
                int armorModValue = 0;

                switch (tier)
                {
                    case 1:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(20, 50);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(50, 70);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(0, 10);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = 0;
                        break;
                    case 2:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(50, 80);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(70, 100);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(10, 30);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = 0;
                        break;
                    case 3:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(80, 110);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(100, 130);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(30, 60);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(190, 210);
                        break;
                    case 4:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(110, 140);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(120, 150);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(60, 90);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(210, 230);
                        break;
                    case 5:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(140, 170);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(150, 180);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(90, 120);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(230, 250);
                        break;
                    case 6:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(170, 200);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(180, 210);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(120, 150);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(250, 270);
                        break;
                    case 7:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(200, 230);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(210, 240);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(150, 180);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(270, 290);
                        break;
                    case 8:
                        if (wo.ArmorType == (int)ArmorType.Leather || wo.ArmorType == (int)ArmorType.Cloth)
                            armorModValue = ThreadSafeRandom.Next(230, 260);
                        if (wo.ArmorType == (int)ArmorType.StuddedLeather)
                            armorModValue = ThreadSafeRandom.Next(240, 270);
                        if (wo.ArmorType == (int)ArmorType.Metal
                            || wo.ArmorType == (int)ArmorType.Chainmail
                            || wo.ArmorType == (int)ArmorType.Scalemail)
                            armorModValue = ThreadSafeRandom.Next(180, 210);
                        // Covenant and Olthoi Armor (not Amuli, Celdon, Koujia, or Alduressa types of Olthoi Armor)
                        if (wo.ResistMagic != null && wo.ResistMagic == 9999)
                            armorModValue = ThreadSafeRandom.Next(290, 310);
                        break;
                }

                int adjustedArmorLevel = baseArmorLevel + armorModValue;
                wo.SetProperty(PropertyInt.ArmorLevel, adjustedArmorLevel);
            }

            return wo;
        }