Class: MonsterId::Monster

Inherits:
Object
  • Object
show all
Defined in:
lib/monster_id/monster.rb

Constant Summary collapse

SIZE = 
120

Instance Method Summary collapse

Constructor Details

#initialize(seed, size = nil) ⇒ Monster 



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# File 'lib/monster_id/monster.rb', line 10

def initialize(seed, size=nil)
  srand Digest::MD5.hexdigest(seed.to_s).to_i(16)

  # throw the dice for body parts
  parts = {
    legs:  rand(5),
    hair:  rand(5),
    arms:  rand(5),
    body:  rand(15),
    eyes:  rand(15),
    mouth: rand(10),
  }

  @image = ChunkyPNG::Image.new SIZE, SIZE, ChunkyPNG::Color::TRANSPARENT

  parts.each do |name, number|
    path = File.join File.dirname(__FILE__), 'parts', "#{name}_#{number + 1}.png"
    part = ChunkyPNG::Image.from_file path

    if name == :body
      # random body color
      w, h = part.width, part.height
      r, g, b = rand(215) + 20, rand(215) + 20, rand(215) + 20
      body_color = r * 256 * 256 * 256 + g * 256 * 256 + b * 256 + 255
      part.pixels.each_with_index do |color, i|
        unless color == 0 || color == 255
          part[i % w, (i / w).to_i] = body_color
        end
      end
    end

    @image.compose!(part, 0, 0)
  end

  @image.resample_bilinear!(size, size) unless size == nil or size == SIZE

  srand
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/monster_id/monster.rb', line 53

def inspect
  ''
end

#save(path) ⇒ Object 



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# File 'lib/monster_id/monster.rb', line 61

def save(path)
  @image.save(path)
end

#to_data_uri ⇒ Object 



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# File 'lib/monster_id/monster.rb', line 57

def to_data_uri
  'data:image/png;base64,' + Base64.encode64(@image.to_s).gsub(/\n/, '')
end

#to_s ⇒ Object 



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# File 'lib/monster_id/monster.rb', line 49

def to_s
  @image.to_datastream.to_s
end