lib/codebreaker_diz/matcher.rb in codebreaker_diz-0.2.3 vs lib/codebreaker_diz/matcher.rb in codebreaker_diz-0.2.4

@@ -3,11 +3,11 @@
 require_relative 'config'
 
 module CodebreakerDiz
   class Matcher
     def initialize(secret_code, user_code)
-      @secret_code = secret_code
+      @secret_code = secret_code.clone
       @user_code = user_code
 
       @exact_matches = 0
       @number_matches = 0
     end
@@ -19,17 +19,17 @@
     end
 
     private
 
     def calculate_matches
-      delta = []
-
       @secret_code.zip(@user_code).each do |secret_code_number, user_code_number|
-        if secret_code_number == user_code_number                then @exact_matches  += 1
-        elsif (@secret_code - delta).include? user_code_number   then @number_matches += 1
+        next unless @secret_code.include? user_code_number
+
+        if secret_code_number == user_code_number     then @exact_matches   += 1
+        elsif @secret_code.include? user_code_number  then @number_matches  += 1
         end
 
-        delta << user_code_number
+        @secret_code.delete_at(@secret_code.index(user_code_number))
       end
     end
   end
 end