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Inside the 128 True Official Genuine Mooncat™ MD5-Verified Original Designs in ~24×24 Pixel Format - All About Pose / Facing / Face / Fur

You can find all 128 True Official Genuine Mooncat™ MD5-verified original designs in line #6 in the open source mooncatparser.js image data generation code.

Aside: What about the MD5-verifed original design crypto "magic"?

The MD5 message-digest algorithm is a widely used hash function producing a 128-bit hash value.

-- MD5 @ Wikipedia

If you look into the MoonCatRescue blockchain contract code - you can find the comment:

Use this [MD5 hash] to verify mooncatparser.js the cat image data generation javascript file.

followed by the 128-bit / 16-byte MD5 hash value in code:

bytes16 public imageGenerationCodeMD5 = 0xdbad5c08ec98bec48490e3c196eec683;

Using a command line tool such as md5sum you can (re)calculate / verify the hash:

$ md5sum mooncatparser.js

resulting in:

dbad5c08ec98bec48490e3c196eec683 *mooncatparser.js

Bingo! The MD5 hash values match up! dbad5c08ec98bec48490e3c196eec683 equals dbad5c08ec98bec48490e3c196eec683. (Note: 0x is the optional "dummy" hex prefix that you can drop.)

✓ True Official Genuine Mooncat™ original designs verified.

Or using a "hand-rolled" script to compute the message digest in hex(adecimal):

require 'crypto'       # or use require 'crypto-lite'

text = File.read( 'mooncatparser.js')
md5( text )
#=> "dbad5c08ec98bec48490e3c196eec683"

Onwards.

Back to line #6 in the open source mooncatparser.js image data generation code:

var designs = [
  // design 0
  "00011111100000000.01113333310000000.13533333331110000."
  "01333134331331000.00133333431333111.00133335331333351."
  "00133333431331111.01333134331333111.13533333331313351."
  "01113333313341111.00011111133344411.00000133333341151."
  "00000133333313331.00000133333333311.00000133333333110."
  "00000113333331100.00000011133311000.00011100131110000."
  "00013111131000000.00011333311000000.00000111110000000",
  // design 1
  "00000000111100.00011111113110.01113333313310."
  "13533333331310.01333134331510.00133333431110."
  "00133335331510.00133333431310.01333134331310."
  "13533333331111.01113333311331.00011111131131."
  "00011333334131.00013333334131.00013333133131."
  "00011333311331.00001333313311.00001333333110."
  "00001113331100.00000011111000",
  // and so on up to design 127
]

The designs array holds 128 designs (from 0 to 127) in four pixel size formats, that is, 21×17 (Standing), 20×14 (Sleeping), 17×22 (Pouncing), 20×21 (Stalking) and every design has the pixels encoded in five possible colors (1,2,3,4,5) and zero (0) stands for transparent and the dot (.) breaks up lines.

Let's try the copy-n-pasted designs in designs.rb for easy (re)use in the mooncats library:

require 'mooncats'

DESIGNS.size

printing as expected:

#=> 128

Let's generate some images using the designs. Let's start with design #0 and #1:

cat = Mooncats::Image.new( design: DESIGNS[0] )
# or
cat = Mooncats::Image.new( design: 0 )   ## convenience shortcut
cat.save( 'i/design-000.png' )

cat = Mooncats::Image.new( design: DESIGNS[1] )
# or
cat = Mooncats::Image.new( design: 1 )   ## convenience shortcut
cat.save( 'i/design-001.png' )

And voila!

Let's try with x3 zoom factor:

cat = Mooncats::Image.new( design: 0, zoom: 3 )
cat.save( 'i/design-000x3.png' )

cat = Mooncats::Image.new( design: 1, zoom: 3 )
cat.save( 'i/design-001x3.png' )

You can categorize / tag the designs by pose (4), face (4), fur (4), and facing (2) attributes, that is, 4 x 4 x 4 x 2 = 128.

And you can (re)use the pre-defined assigned names:

POSES = [
  'Standing',   # 00
  'Sleeping',   # 01
  'Pouncing',   # 10
  'Stalking',   # 11
]

FACES = [
  'Smile',              # 00
  'Frown (Look Down)',  # 01
  'Frown (Look Up)',    # 10
  'Flat Whiskers',      # 11
]

FURS = [
  'Solid',      # 00
  'Striped',    # 01
  'Eyepatch',   # 10
  'Half/Half',  # 11
]

FACINGS = [
  'Left',   # 0
  'Right',  # 1
]

Let's try to automagically describe design 0:

design = Mooncats::Metadata::Design.new( 0 )
design.pose     #=> "Standing"
design.face     #=> "Smile"
design.fur      #=> "Solid"
design.facing   #=> "Left"

And design 1:

design = Mooncats::Metadata::Design.new( 1 )
design.pose     #=> "Sleeping"
design.face     #=> "Smile"
design.fur      #=> "Solid"
design.facing   #=> "Left"

and so on.