Follow up: Binary Clock in Ruby in under 55 lines of code using Shoes

After some great comments in my last post and some judicious refactoring, I now present an entire binary clock in Ruby in less than 55 lines of code using Shoes:


Shoes.app {
@width = 40
@left = 10
@margin = 10
@top = 180
@offset = @width + @margin
@fill = red
@images = [[],[0],[1],[0,1],[2],[0,2],[1,2],[0,1,2],[3],[0,3]]

def gen_recs(num)
  return stack {
    fill @fill
    num.times do |i|
      rect :left => @left, :top => (@top - (i*@offset)), :width => @width
    end
    @left += @offset
  }
end

def turn_on_images(num, stack1, stack2)
  time = num.to_s.split(//)
  t1 = []
  t1 = @images[time[0].to_i] if time.length > 1
  t2 = @images[time[time.length-1].to_i]
  activate_images(stack1, t1)
  activate_images(stack2, t2)
end

def activate_images(stack, image_pos_array)
  stack.contents.each do |item|
    item.style :fill => @fill
  end
  image_pos_array.each do |pos|
    stack.contents[pos].style :fill => green
  end
end

@hours1 = gen_recs(2)
@hours2 = gen_recs(4)

@minutes1 = gen_recs(3)
@minutes2 = gen_recs(4)

@seconds1 = gen_recs(3)
@seconds2 = gen_recs(4)

every(1) do
  now = Time.new

  turn_on_images(now.sec, @seconds1, @seconds2)
  turn_on_images(now.min, @minutes1, @minutes2)
  turn_on_images(now.hour, @hours1, @hours2)
  end
}