# File karel/tk_robot_world.rb, line 414 def save_world(filename) file = File.new(filename, "w") file.puts "KarelWorld" @beepers.keys.each do |key| put_line(file, "beepers", key[0], key[1], @Beepers[key]) end @east_west_walls.keys.each{|key| put_line(file, "eastwestwalls", key[0], key[1], key[1]) } @north_south_walls.keys.each{|key| put_line(file, "northsouthwalls", key[1], key[0], key[0]) } file.close nil end