3digit_cpt_ruby_map.rb

lines = ["001002003004",
  "005006007008"
  ]
  
map = []  
lines.each do |line|
  map << line
end

w = map[0].size/3
h = map.size

tiles = Array.new(w) do |x|
	Array.new(h) do |y|
		case map[y][x*3, 3]
		when '001'
		  :one
		when '002'
		  :two
		when '003'
		  :three
    when '004'
      :four
    when '005'
      :five
    when '006'
      :six
    when '007'
      :seven
    when '008'
      :eight
	  else
	    nil
    end
  end
end

p tiles
=>
[[:one, :five], [:two, :six], [:three, :seven], [:four, :eight]]