Method: Pixelart::Pixelator#grid

Defined in:
lib/pixelart/pixelator.rb

#grid(spacing: 10) ⇒ Object 



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# File 'lib/pixelart/pixelator.rb', line 22

def grid( spacing: 10 )
  width  = @img.width  + (@width-1)*spacing
  height = @img.height + (@height-1)*spacing

  img = ChunkyPNG::Image.new( width, height, ChunkyPNG::Color::WHITE )

  @img.width.times do |x|
    xpixel = x/@xsize
    @img.height.times do |y|
      ypixel = y/@ysize

      ## clip overflow pixels
      xpixel = @width-1   if xpixel >= @width
      ypixel = @height-1  if ypixel >= @height

      color = @img[x,y]
      img[x + spacing*xpixel,
          y + spacing*ypixel] = color
    end
  end

  Image.new( img.width, img.height, img )  ## wrap in Pixelart::Image - why? why not?
end