kittens.coffee

# Kittens!
#
# kitten me - A randomly selected kitten
# kitten bomb me <number> - Many many kittens!

module.exports = (robot) ->
  robot.respond /kittens?(?: me)?$/i, (msg) ->
    msg.send kittenMe()

  robot.respond /kittens?(?: me)? (\d+)(?:[x ](\d+))?$/i, (msg) ->
    msg.send kittenMe msg.match[1], (msg.match[2] || msg.match[1])

  robot.respond /kitten bomb(?: me)?( \d+)?$/i, (msg) ->
    kittens = msg.match[1] || 5
    msg.send(kittenMe()) for i in [1..kittens]

kittenMe = (height, width)->
  h = height ||  Math.floor(Math.random()*250) + 250
  w = width  || Math.floor(Math.random()*250) + 250
  root = "http://placekitten.com"
  root += "/g" if Math.random() > 0.5 # greyscale kittens!
  return "#{root}/#{h}/#{w}#.png"