Process a directory of PNG card files from nanDECK for The Game Crafter

Thorfile

require 'quick_magick'

class CardsBuilder < Thor
  no_tasks do
    def bordersize(image, color = image.get_pixel(0, 0))
      image.gravity = 'center'
      image.background  = "rgb(#{color.join(',')})"
      image.extent "825x1125"
    end
  end

  desc "pngout DIR", "Process PNG files from nanDECK output for The Game Crafter"
  def pngout(dir)
    Dir["#{dir}/*.png"].sort.each do |file|
      image = QuickMagick::Image.read(file).last

      bordersize(image)

      image.save!
    end
  end
end