creasty

c = (1 - (2 * l - 1).abs) * s
x = c * (1 - ((h / 60.0) % 2 - 1).abs)
m = l - c / 2

rgb = [
  [c, x, 0],
  [x, c, 0],
  [0, c, x],
  [0, x, c],
  [x, 0, c],

creasty

git filter-branch -f --env-filter '
  if [ "$GIT_COMMITTER_EMAIL" != "yuki@creasty.com" ]; then
    export GIT_AUTHOR_NAME="nondisclosure"
    export GIT_AUTHOR_EMAIL="nondisclosure@creasty.com"
    export GIT_COMMITTER_NAME="nondisclosure"
    export GIT_COMMITTER_EMAIL="nondisclosure@creasty.com"
  fi
' --tag-name-filter cat -- --branches --tags

creasty

module Base32

  ENCODE_MAP = '0123456789ABCDEFGHJKMNPQRSTVWXYZ'

  DECODE_MAP = Hash[
    ENCODE_MAP
    .each_char
    .zip(0..31)
    .concat([
      ['I', 1],

creasty

module Concerns
  module SuppressStatus

    extend ActiveSupport::Concern

    included do
      protected :suppress_status!
      protected :suppress_status?
      
      prepend_after_action :suppress_status!

creasty

Simplest way

openssl genrsa 2048 > cert.key
openssl req -new -batch -key cert.key > cert.csr
openssl x509 -days 3650 -req -signkey cert.key < cert.csr > cert.crt  # valid for a decade (3650 days)

Secure way

creasty

• Algorithm for computing a score for move and time based game [closed]
  http://stackoverflow.com/questions/14679822/algorithm-for-computing-a-score-for-move-and-time-based-game
• How Reddit ranking algorithms work
  http://amix.dk/blog/post/19588
• How Hacker News ranking algorithm works
  http://amix.dk/blog/post/19574

creasty

weightedRandom = (spec) ->
  len = spec.length
  totalWeight = 0
  totalWeight += (spec[i] ?= (1 / len)) for i in [0...len] by 1
  rand = Math.random() * totalWeight
  weightSum = 0

  for i in [0...len] by 1
    weightSum += spec[i]
    return i if rand <= weightSum

creasty

select @@global.time_zone, now(), convert_tz(now(), 'utc', '+09:00');

creasty

require 'rmagick'

class ColorExtraction

  DEFAULT_QUANTIZER = 150

  def self.from_file(file, quantize: DEFAULT_QUANTIZER)
    new(Magick::ImageList.new(file), quantize: quantize)
  end