Merge pull request ryanb#33 from EnriqueVidal/patch-1

Should stop complaining about file existing, Closes ryanbgh-29

Author: ryanb

lib/ruby_warrior/player_generator.rb

@@ -19,7 +19,7 @@ def previous_level
     # TODO refactor and test this method
     def generate
       if level.number == 1
-        FileUtils.mkdir_p(level.player_path)
+        FileUtils.mkdir_p(level.player_path) unless File.exists? level.player_path
         FileUtils.cp(templates_path + '/player.rb', level.player_path)
       end