Class: Head::Identicon

Inherits:
Object
  • Object
show all
Defined in:
lib/head/identicon.rb

Constant Summary collapse

DARK_COLORS = 
%w[#39FF14 #FF3131 #1F51FF #FFE700 #F000FF #7FFF00 #CCFF00 #FF5E00 #00FFFF].freeze
LIGHT_COLORS = 
[
  'A799B7', # gray
  'E384FF', # rose
  'c300cE', # purple
  'F8DE22', # yellow
  '9EDDFF', # light blue
  'FF004D', # red
  'F72798', # pink
  'FFAF00', # orange
  '39FF14'  # neon grass green
].freeze
GRID_SIZE = 
5
HALF_GRID = 
(GRID_SIZE / 2.0).round
DENSITY = 
0.5

Instance Method Summary collapse

Constructor Details

#initialize(input, theme: :light) ⇒ Identicon 



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# File 'lib/head/identicon.rb', line 23

def initialize(input, theme: :light)
  @seed = Digest::MD5.hexdigest(input).to_i(16)
  @random = Random.new(@seed)
  colors = theme == :light ? LIGHT_COLORS : DARK_COLORS
  @color = colors[@seed % (LIGHT_COLORS.size - 1)]
end

Instance Method Details

#to_svg ⇒ Object 



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# File 'lib/head/identicon.rb', line 30

def to_svg
  svg = +%(<svg viewBox="0 0 5 5" xmlns="http://www.w3.org/2000/svg" fill="" shape-rendering="crispEdges">)
  GRID_SIZE.times do |row|
    HALF_GRID.times do |column|
      add_pixel(column, row, svg) if @random.rand < DENSITY
    end
  end
  svg << '</svg>'
  svg.html_safe
end