class FelFlame
  class Helper

    class Level < FelFlame::Helper::ComponentManager
      class <<self
        def data
          @data ||= { add: [], remove: [], grid: FelFlame::Helper::Array2D.new }
        end

        def add(entity_id)
          super
          data[:add].push entity_id
        end

        def remove(entity_id)
          data[:remove].push entity_id
          super
        end
      end
    end

    class Array2D < Array
      def [](val)
        unless val.nil?
          return self[val] = [] if super.nil?
        end
        super
      end
    end

    class ArrayOfHashes < Array
      def [](val)
        unless val.nil?
          return self[val] = {} if super.nil?
        end
        super
      end
    end

    module ComponentHelper
      class <<self
        def up? char
          char == char.upcase
        end

        def down? char
          char == char.downcase
        end

        def underscore(input)
          output = input[0].downcase
          (1...(input.length - 1)).each do |iter|
            if down?(input[iter]) && up?(input[iter + 1])
              output += "#{input[iter].downcase}_"
            elsif up?(input[iter - 1]) && up?(input[iter]) && down?(input[iter + 1])
              output += "_#{input[iter].downcase}"
            else
              output += input[iter].downcase
            end
          end
          output += input[-1].downcase unless input.length == 1
          output
        end
      end
    end
  end
end