Petter Karstensen

csharp-scrabble-challenge.Main/Scrabble.cs

@@ -9,15 +9,65 @@ namespace csharp_scrabble_challenge.Main
 {
     public class Scrabble
     {
+        private string _word;
         public Scrabble(string word)
         {            
-            //TODO: do something with the word variable
+           _word = word.ToUpper();  
+
+        }
+
+        public int LetterValue(char letter)
+        {
+            int value = letter switch
+            {
+                'A' or 'E' or 'I' or 'O' or 'U' or 'L' or 'N' or 'R' or 'S' or 'T' => 1,
+                'D' or 'G' => 2,
+                'B' or 'C' or 'M' or 'P' => 3,
+                'F' or 'H' or 'V' or 'W' or 'Y' => 4,
+                'K' => 5,
+                'J' or 'X' => 8,
+                'Q' or 'Z' => 10,
+                '{' or '}' or '[' or ']' => 0,
+                _ => 0
+            };
+            return value;
         }
 
         public int score()
         {
-            //TODO: score calculation code goes here
-            throw new NotImplementedException(); //TODO: Remove this line when the code has been written
+
+            bool doublePoint = false;
+            bool triplePoint = false;
+
+            int score = 0;
+            if (_word.Length == 0 || !IsValid(_word))
+            {
+                return score;
+            }
+
+            foreach (char c in _word)
+            {
+
+                if (c == '{')
+                {
+                    doublePoint = true;
+                }
+                else if (c == '[')
+                {
+                    triplePoint = true;
+                }
+
+                score += LetterValue(c);
+            }
+            if (doublePoint) { score = score * 2; }
+            else if (triplePoint) { score = score * 3; }
+
+            return score;
+        }
+
+        public bool IsValid(string word)
+        {
+            return System.Text.RegularExpressions.Regex.IsMatch(word, @"^[a-zA-Z\[\]{}]+$");
         }
     }
 }