Module: Punk::Alien

Defined in:
lib/punkmaker/alien.rb

Overview

make it a class - why? why not?

Constant Summary collapse

BASE_M = 
Image.read( "#{Pixelart::Module::Punkmaker.root}/config/alien-male.png" )
BASE_F = 
Image.read( "#{Pixelart::Module::Punkmaker.root}/config/alien-female.png" )

Class Method Summary collapse

Class Method Details

.derive_color_map(color) ⇒ Object 



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# File 'lib/punkmaker/alien.rb', line 66

def self.derive_color_map( color )

# 2 pixels #f1ffff / rgb(241 255 255) - hsl(180° 100%  97%)  - lighter

# 125 pixels #c8fbfb / rgb(200 251 251) - hsl(180°  86%  88%)   - base (use as base)

#  6 pixels #9be0e0 / rgb(155 224 224) - hsl(180°  53%  74%)   - darker

#  2 pixels #75bdbd / rgb(117 189 189) - hsl(180°  35%  60%)  - darkest

color = Color.from_hex( color )  if color.is_a?( String )
base = color

hsl  = Color.to_hsl( color )
pp hsl

h, s, l = hsl
h = h % 360   # make always positive (might be -50 or such)

pp [h,s,l]


darker = Color.from_hsl(
  h,
  [0.0,s-0.05].max,
  [0.0,l-0.10].max)

darkest = Color.from_hsl(
  h,
  [0.0,s-0.10].max,
  [0.0,l-0.20].max)


color_map = {
    '#c8fbfb' =>  base,
    '#9be0e0' => darker,
    '#75bdbd' => darkest,
}

color_map
end

.derive_shine(color) ⇒ Object 



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# File 'lib/punkmaker/alien.rb', line 40

def self.derive_shine( color )
## was before - reuse old formula- why? why not?

## todo/check - check "formula" used in skintones script for humans!!!

## lighter = Color.from_hsl(

##   (h+1)%360,   # todo/check: make lighter by -1 on hue? or +1????

##   [1.0,s+0.10].min,

##   [1.0,l+0.25].min)


  color = Color.from_hex( color )  if color.is_a?( String )

  hsv  = Color.to_hsv( color )
  # pp hsv


  h, s, v = hsv
  h = h % 360   # make always positive (might be -50 or such)

  ## pp [h,s,v]


  ## add extra saturation if v(alue) / brightness is max 1.0 - why? why not?

  sdiff = v >= 0.99 ? 0.35 : 0.25

  lighter =  Color.from_hsv( h, [0.0, s-sdiff].max, [v+0.1,1.0].min )  
  lighter
end

.make(color = nil, shine: true, gender: 'm') ⇒ Object 



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# File 'lib/punkmaker/alien.rb', line 11

def self.make( color=nil,
               shine: true,
               gender: 'm'  )

  base =   gender == 'm' ? BASE_M : BASE_F

  ## note: make a copy of base 

  punk = Image.new( base.width, base.height )  
  punk.compose!( base )
  
  if color    ## change skin tone (& eyebrows)?

    color_map = derive_color_map( color )  
    punk = punk.change_colors( color_map )
  end

 
  if shine
   shine_color =    color ? derive_shine( color ) : 0xf1ffffff
   if gender == 'm'
     punk[9,7] = shine_color
     punk[8,8] = shine_color
   else 
     punk[9,9] = shine_color
   end
  end   
  punk
end