FINISHED HUFFMAN FINALLLLLLYLYLLY

mastermind/src/mastermind/Main.java

@@ -386,6 +386,7 @@ class Game extends World {
     }
 
     public Game onKeyEvent(String key) {
+        if (this.guessesLeft <= 0) throw new Error("Done.");
         if ("123456789".contains(key)) { // User has entered a number.
             int choice = Integer.valueOf(key);
             if (choice <= this.conf.options.len()) return this.addDot(