game.rb in ep-codebreaker-0.3.0

- old
+ new

@@ -14,15 +14,15 @@
     private_constant :MIN, :MAX, :LENGTH, :REGEXP, :TRIES, :HINTS
     attr_reader :tries_left, :hints_left
 
     def start
       @code = Array.new(LENGTH) { rand(MIN..MAX) }.join
-      @array_for_hints = @code.chars
+      @indexes_for_hint = (0...LENGTH).to_a
 
       @tries_left = TRIES
       @hints_left = HINTS
-      
+
       @finished = false
       @won = false
     end
 
     def check_guess(input)
@@ -40,11 +40,13 @@
 
       @tries_left -= 1
       @hints_left -= 1
       define_stage
 
-      index = rand(@array_for_hints.length)
-      @array_for_hints.delete_at(index)
+      index = @indexes_for_hint.delete(@indexes_for_hint.sample)
+      hint = '_' * LENGTH
+      hint[index] = @code[index]
+      hint
     end
 
     def finished?
       @finished
     end