RubyMotion

app_delegate.rb

class AppDelegate
  attr_accessor :window
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    self.window = UIWindow.alloc.initWithFrame(UIScreen.mainScreen.bounds)
    window.rootViewController = Controller.alloc.init
    window.rootViewController.wantsFullScreenLayout = true
    window.makeKeyAndVisible
    true
  end
end

class Controller < UIViewController
  def loadView
    self.view = View.alloc.init.construct
    NSTimer.scheduledTimerWithTimeInterval(1.0/30.0,
      target:view, selector:'timerFired', userInfo:nil, repeats:true)
  end
end

class View < UIView
  attr_accessor :i, :step, :flip
  def construct
    self.i    = 0
    self.step = 1
    self.flip = true
    self
  end

  def timerFired
    self.i += step
    setNeedsDisplay
  end

  def drawRect rect
    r, g, b, a = rainbows
    UIColor.colorWithRed(r, green:g, blue:b, alpha:a).set
    UIBezierPath.bezierPathWithRect(frame).fill
  end

  def touchesEnded touches, withEvent:event
    puts "Clicked #{step}"
    self.flip = !flip if step >= 50 || step <= 0
    self.step = 1 if step == 0

    if flip
      self.step *= 2
    else
      self.step /= 2
    end
  end

  private
  def rainbows freq=0.01
    r = Math.sin(freq*i + 0*Math::PI/3) + 0.5;
    g = Math.sin(freq*i + 2*Math::PI/3) + 0.5;
    b = Math.sin(freq*i + 4*Math::PI/3) + 0.5;
    [r, g, b, 1.0]
  end
end

bunmo.rb

require 'rubygems/specification'
require 'rubygems/dependency'
require 'net/http'
require 'openssl'
require 'zlib'

$bunmo_output = File.open("#{ARGV.first}.rb", 'a')
$bunmo_loaded = {}

class Object
  alias_method :require_ruby, :require
end

def require name
  return if $bunmo_loaded[name]
  path = Gem.find_files("#{name}.rb").first
  return warn("#{name} not found: #{caller[-3]}") unless path
  $bunmo_loaded = path
  require_ruby name
  $bunmo_output.puts(File.read(path).
    gsub(/require(\(| ).+$/, ''))
end

require ARGV.first