User41Lib/WSUniversalLib/Calculation.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WSUniversalLib
{
    public class Calculation
    {
            public static int GetQuantityForAgent(int agentType, int materialType, int count, float width, float length)
            {
                double[] matKoef = { 0, 0.1, 0.17, 0.26 };
                double[] prodKoef = { 0, 1.8, 3.2, 4.1 };

                if (agentType <= 0 || materialType <= 0 || count <= 0 || width <= 0 || length <= 0)
                {
                    return -1;
                }

                try
                {
                    int matCount = (int)Math.Ceiling(count * width * length * prodKoef[agentType] / matKoef[materialType]);
                    return matCount;
                }
                catch
                {
                    return -1;
                }

            }
    }
}