Class: Cryptopunks::Generator

Inherits:
Object
  • Object
show all
Defined in:
lib/cryptopunks/generator.rb

Instance Method Summary collapse

Constructor Details

#initialize(image_path = "./spritesheet.png", meta_path = "./spritesheet.csv") ⇒ Generator

Returns a new instance of Generator.



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# File 'lib/cryptopunks/generator.rb', line 103

def initialize( image_path="./spritesheet.png",
                meta_path="./spritesheet.csv" )
   @sheet = Pixelart::ImageComposite.read( image_path )
   recs  = CsvHash.read( meta_path )

   @recs = build_recs( recs )

   ## lookup by "case/space-insensitive" name / key

   @attributes_by_name = build_attributes_by_name( @recs )
end

Instance Method Details

#build_attributes_by_name(recs) ⇒ Object 



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# File 'lib/cryptopunks/generator.rb', line 48

def build_attributes_by_name( recs )
   h = {}
   recs.each_with_index do |rec|
     key = normalize_key( rec.name )
     key << "_(#{rec.gender})"  if rec.attribute?

     if h[ key ]
       puts "!!! ERROR - attribute name is not unique:"
       pp rec
       puts "duplicate:"
       pp h[key]
       exit 1
     end
     h[ key ] = rec
   end
   ## pp h

   h
end

#build_recs(recs) ⇒ Object

build and normalize (meta data) records



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# File 'lib/cryptopunks/generator.rb', line 68

def build_recs( recs )   ## build and normalize (meta data) records


   ## sort by id

   recs = recs.sort do |l,r|
                      l['id'].to_i( 10 ) <=> r['id'].to_i( 10 )   # use base10 (decimal)

                    end

   ## assert all recs are in order by id (0 to size)

   recs.each_with_index do |rec, exp_id|
      id = rec['id'].to_i(10)
      if id != exp_id
         puts "!! ERROR -  meta data record ids out-of-order - expected id #{exp_id}; got #{id}"
         exit 1
      end
   end

   ## convert to "wrapped / immutable" kind-of struct

   recs = recs.map do |rec|
            id     = rec['id'].to_i( 10 )
            name   = rec['name']
            gender = normalize_gender( rec['gender'] )
            type   = rec['type']

            Metadata::Sprite.new(
              id:     id,
              name:   name,
              type:   type,
              gender: gender)
          end
   recs
end

#find(q, gender: nil) ⇒ Object

gender (m/f) required for attributes!!!



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# File 'lib/cryptopunks/generator.rb', line 138

def find( q, gender: nil )  ## gender (m/f) required for attributes!!!

   rec = find_meta( q, gender: gender )

   ## return image if record found

   rec ? @sheet[ rec.id ] : nil
end

#find_meta(q, gender: nil) ⇒ Object

gender (m/f) required for attributes!!!



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# File 'lib/cryptopunks/generator.rb', line 122

def find_meta( q, gender: nil )  ## gender (m/f) required for attributes!!!


   key = normalize_key( q )  ## normalize q(uery) string/symbol

   key << "_(#{normalize_gender( gender )})"  if gender

   rec = @attributes_by_name[ key ]
   if rec
      puts " lookup >#{key}< => #{rec.id}: #{rec.name} / #{rec.type} (#{rec.gender})"
      # pp rec

   else
      puts "!! WARN - no lookup found for key >#{key}<"
   end
   rec
end

#generate_image(*values, background: nil) ⇒ Object Also known as: generate 



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# File 'lib/cryptopunks/generator.rb', line 179

def generate_image( *values, background: nil )

   ids = if values[0].is_a?( Integer )  ## assume integer number (indexes)

             values
         else ## assume strings (names)

             to_recs( *values ).map { |rec| rec.id }
         end


   punk = Pixelart::Image.new( 24, 24 )

   if background    ## for now assume background is (simply) color

      punk.compose!( Pixelart::Image.new( 24, 24, background ) )
   end

   ids.each do |id|
     punk.compose!( @sheet[ id ] )
   end

   punk
end

#normalize_gender(str) ⇒ Object 



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# File 'lib/cryptopunks/generator.rb', line 40

def normalize_gender( str )
   ## e.g. Female => f

   ##      F => f

   ##  always return f or m

   str.downcase[0]
end

#normalize_key(str) ⇒ Object

static helpers - (turn into “true” static self.class methods - why? why not?)



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# File 'lib/cryptopunks/generator.rb', line 36

def normalize_key( str )
   str.downcase.gsub(/[ ()°_-]/, '').strip
end

#spritesheet ⇒ Object Also known as: sheet 



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# File 'lib/cryptopunks/generator.rb', line 115

def spritesheet() @sheet; end

#to_recs(*values) ⇒ Object 



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# File 'lib/cryptopunks/generator.rb', line 148

def to_recs( *values )
     archetype_name  = values[0]

     ### todo/fix:  check for nil/not found!!!!

     archetype  = find_meta( archetype_name )
     if archetype.nil?
       puts "!! ERROR -  archetype >#{archetype}< not found; sorry"
       exit 1
     end

     recs       = [archetype]

     attribute_names  = values[1..-1]
     ## note: attribute lookup requires gender from archetype!!!!

     attribute_gender = archetype.gender

     attribute_names.each do |attribute_name|
       attribute = find_meta( attribute_name, gender: attribute_gender )
       if attribute.nil?
          puts "!! ERROR - attribute >#{attribute_name}< for (#{attribute_gender}) not found; sorry"
          exit 1
       end
       recs << attribute
     end

     recs
end