JoshCheek’s gists

## undulating_waves.rb
# video @ https://vimeo.com/218743733
require 'graphics'

class Waves < Graphics::Simulation
  include Math

  def initialize
    super 600, 600, 24
    self.color.default_proc = -> h, k { k }
  end

## you_spin_me_right_round.rb
require'io/console'
include Math
p,t=PI,"You spin me right round baby, right round round round."
.split(/\b/).flat_map.with_index{|w,i|w.chars.map{|c|"\e[9#{i%7+1}m#{c}"}}+
(" "*10).chars
r,ø=t.size/2/p,2*p/t.size
$><<"\e[H\e[2J\e[?25l"
at_exit{$><<"\e[?25h"}
loop.with_index{|*,c|t.each.with_index(-c){|c,i|print"\e[#{
(sin(ø*i)*r+r+1).to_i};#{(cos(ø*i)*r*2+r*2+1).to_i}H#{c}"}

## xoxo.rb
%%%%%%%%%%%%%%%%%%%%%%%
public def /*; self end
public def _*; self end
{}./{//}./$\,//./,//,$,
$.._$,,%,?,,?,,$_,$?,??
//=~$/&&__=-11+_=$.+111
$><<<<-"<<<"<<<<-">>"<<
           <<<
         >>
($`<<_-3<<_<<_+7<<-~__)

## melancholy.rb
# https://vimeo.com/217760201
# can't remember if this is the version from the video or not
# that one might've been simpler (w/o the lambdas)

require 'graphics'

class Smth < Graphics::Simulation
  def initialize
    super 1000, 600, 24
    self.color.default_proc = -> h, k { k }

## walkers1.rb
# video @ https://vimeo.com/217144282
require 'graphics'

class Walkers < Graphics::Simulation
  def initialize
    super 800, 600, 24
    color.default_proc = -> h, k { k }
    @walkers = 50.times.map do
      length = 15
      colour = [

## bash_arrays_vs_multiline_strings.sh
#!/usr/bin/env bash

-----() { echo "----- $1 -----"; }


----- 'ARRAY' -----
ary=()
ary+=(abc)
ary+=("d e")
for val in "${ary[@]}"; do

## hilight
#!/usr/bin/env ruby -p

# Output hilighter for the Clojure koans:
#   https://github.com/functional-koans/clojure-koans
# written against git commit
#   9b3efbb0268794c6f5e5516589bb17ed78000602

gsub /^clojure\.lang\.ExceptionInfo:\s+(.*)$/,
      "\e[41;37;1m \\1 \e[0m"

## align_gemfiles.rb
require 'bundler'
require 'pathname'

path1     = ARGV[0]
path2     = ARGV[1]
lockfile1 = File.read File.join(path1, 'Gemfile.lock')
lockfile2 = File.read File.join(path2, 'Gemfile.lock')

ROOT = File.expand_path '.'

## mandelbrot.rb
# image @ https://twitter.com/josh_cheek/status/846199094519443456
require 'graphics'

# https://www.bowdoin.edu/~dfrancis/askanerd/mandelbrot/
#
# Consider the code:
#   Z = 0
#   C = /* some complex number */
#   loop { Z = Z*Z + C }
#

## bezier_with_sindy.rb
# The JavaScript version is @ http://codepen.io/josh_cheek/pen/VpBJVQ?editors=0010
require 'graphics'

class BezierForSindy < Graphics::Simulation
  def initialize
    super 500, 500, 24
    @initial_points = [
      [50,     h-50],
      [50,     50],
      [w/2-50, h-50],