mrskull.rb

#!/usr/bin/env ruby
$:.unshift(File.expand_path('../../lib', __FILE__))
require 'ws2812'

# Init
$hat = Ws2812::UnicornHAT.new
$hat.rotation = 90
$hat.clear

l = Ws2812::Color.new(220, 220, 220)
d = Ws2812::Color.new(0, 0, 0)

# sourced from http://atariage.com/forums/topic/169238-free-sprites-for-the-taking/
murray = []
murray << [
  [d,d,l,l,l,l,l,d], #0
  [d,l,l,l,l,l,l,l], #1
  [l,d,l,l,l,d,l,l], #2
  [l,d,d,l,d,d,l,l], #3
  [d,l,l,d,l,l,l,d], #4
  [d,d,d,l,l,l,d,d], #5
  [d,d,d,d,d,l,d,d], #6
  [d,d,d,l,l,l,d,d]  #7
].reverse

murray << [
  [d,d,l,l,l,l,l,d], #0
  [d,l,l,l,l,l,l,l], #1
  [l,d,l,l,l,d,l,l], #2
  [l,d,d,l,d,d,l,l], #3
  [d,l,l,d,l,l,l,d], #4
  [d,d,d,l,l,l,d,d], #5
  [d,d,d,l,l,l,d,d], #6
  [d,d,d,d,d,d,d,d], #7
].reverse

def display(array)
  array.each_with_index do |row, x|
    row.each_with_index do |value, y|
      $hat[x, y] = value
    end
  end
  $hat.show
end

puts "Hit ^C to terminate"

begin
  loop do
    display murray[0]
    sleep 0.3
    display murray[1]
    sleep 0.3
  end
rescue Interrupt
end

$hat.clear