add groomer related strings

Horse Isle Server/HorseIsleServer/Game/Services/Groomer.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+
+namespace HISP.Game.Services
+{
+    public class Groomer
+    {
+
+        public static List<Groomer> Groomers = new List<Groomer>();
+
+        public Groomer(int id, double price, int max)
+        {
+            Id = id;
+            PriceMultiplier = price;
+            Max = max;
+            Groomers.Add(this);
+        }
+
+        public int Id;
+        public double PriceMultiplier;
+        public int Max;
+        public int CalculatePrice(int groom)
+        {
+            double price = ((double)Max - (double)groom) * PriceMultiplier;
+            return Convert.ToInt32(Math.Round(price));
+        }
+
+        public static Groomer GetGroomerById(int id)
+        {
+            foreach (Groomer groomer in Groomers)
+            {
+                if (id == groomer.Id)
+                    return groomer;
+            }
+            throw new KeyNotFoundException("Groomer with id: " + id + " Not found.");
+        }
+    }
+}