CTT/Unity/Assets/Hotfix/Logic/Behaviour/Game/Helper/ItemHelper.cs

using System;

namespace ET
{
    public static class ItemHelper
    {
        public static float GetRealMainValue(float oldValue, byte level)
        {
            return (float) (oldValue*Math.Pow(mainAddCoe, level));
        }
        private const float mainAddCoe = 1.1f;
        private const float reduceCoe = 0.8f;
        private const float reduceCoe1 = 0.6f;

        public static float GetRealViceValue(float oldValue, Quality quality) => quality switch
        {
            var qual when qual >= Quality.Legendary => oldValue,
            var qual when qual >= Quality.Rare => oldValue * reduceCoe,
            var qual when qual <= Quality.UnCommon => oldValue * (reduceCoe * reduceCoe1),
            _ => throw new ArgumentOutOfRangeException(nameof (quality), quality, null)
        };
    }
}