1 files changed, 45 insertions, 0 deletions
diff --git a/dsa/DSALib/Auxiliary/Dice.cs b/dsa/DSALib/Auxiliary/Dice.cs
new file mode 100644
index 0000000..0bfabeb
--- /dev/null
+++ b/dsa/DSALib/Auxiliary/Dice.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Linq;
+
+namespace DSALib.Auxiliary
+{
+    public static class Dice // roll it!
+    {
+        private static readonly Random Rnd = new Random();
+
+        public static int Roll(int d = 20)
+        {
+            return Rnd.Next(d) + 1;
+        }
+
+        public static int Roll(string input)
+        {
+            var strings = input.ToLower().Split(new[] {'w', 'd'}, 2, StringSplitOptions.RemoveEmptyEntries).ToList();
+            
+
+            if (strings.Count != 2)
+                throw new ArgumentException($"{input}: does not satisfy the format requirements( dice count (d|w) die size)");
+
+            var count = Convert.ToInt32(strings[0]);
+            var d = Convert.ToInt32(strings[0]);
+
+            return Roll(count, d);
+        }
+
+        public static int Roll(int count, int d)
+        {
+            if (d <= 0 || count <= 0) return 0;
+
+            var sum = 0;
+            for (var i = 0; i < Math.Abs(count); i++)
+            {
+                var roll = Roll(d);
+                sum += roll;
+            }
+
+            sum *= Math.Abs(count) / count;
+
+            return sum;
+        }
+    }
+}
+\ No newline at end of file