def by_round round, side
      depth = @bracket.depth[side] - (round - 1)
      seats = []

      side_root = @bracket.root.send(side)
      @bracket.top_down(side_root) do |node|
        if node.depth == depth
          seats << node
        end
      end

      seats
    end
def by_round round, side
      depth = @bracket.depth[side] - (round - 1)
      seats = []

      side_root = @bracket.root.send(side)
      @bracket.top_down(side_root) do |node|
        if node.depth == depth
          seats << node
        end
      end

      seats
    end
Retrieves an Array of Nodes for a given round on a given side

 @param [Fixnum] round to pull
 @param [Fixnum] side of the tree to pull from
 @return [Array] array of Nodes from the round