a_good_place_to_start.rb

# http://gist.github.com/636681
# http://tinyurl.com/learn-ruby-processing
require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

o.stroke 255, 0, 0 #Red outline
o.fill 0, 0, 255 #Blue center
o.ellipse 100, 50, 200, 400 #Tall oval
o.rect 350, 100, 400, 200 #Wide rectangle
o.line 0, 0, o.width, o.height #line across 

acid.rb

#"gem install rubyonacid" first!
require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

require 'rubyonacid/factories/example'

f = RubyOnAcid::ExampleFactory.new

o.no_stroke
max_x, max_y = o.width, o.height
loop do
  o.fill(
    f.get(:red, :max => 255),
    f.get(:green, :max => 255),
    f.get(:blue, :max => 255),
    f.get(:alpha, :min => 50, :max => 200)
  )
  x = f.get(:x, :max => max_x)
  y = f.get(:y, :max => max_y)
  width = f.get(:width, :max => 200)
  height = f.get(:height, :max => 200)
  case f.choose(:shape, :rectangle, :ellipse)
  when :rectangle
    o.rect_mode 3 #CENTER
    o.rect x, y, width, height
  when :ellipse
    o.ellipse_mode 3 #CENTER
    o.ellipse x, y, width, height
  end
end

clear.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

o.background 0

client.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

o.stroke 0
o.background 0
o.fill 50, 255, 100
o.translate 200, 200
o.rotate 3.14 / 5.0
o.rect 50, 50, 75, 100
o.smooth
o.ellipse 40, 20, 16, 16
o.line 90, 150, 80, 160
o.text_font o.create_font "Courier", 72, true
o.text "foo", 10, 100
puts "mouse_x: #{o.mouse_x}, mouse_y: #{o.mouse_y}, pmouse_x: #{o.pmouse_x}, pmouse_y: #{o.pmouse_y}"
puts "width: #{o.width}, height: #{o.height}"
puts "random(255): #{o.random(255)}"
puts "constrain(300, 0, 255): #{o.constrain(300, 0, 255)}"
puts "millis: #{o.millis}"

image.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

#sample.jpg must exist in data/ directory.
image = o.load_image("sample.jpg")
o.image(image, 10, 20)

processing_ruboto_client.rb

require "ruboto.rb"
confirm_ruboto_version(4, false)
java_import "org.ruboto.embedded.RubotoView"

require 'drb'
DRb.start_service

$activity.start_ruboto_activity "$druby" do

  setup_content do
    @service = DRbObject.new(nil, "druby://192.168.0.100:9000")
    RubotoView.new($druby)
  end
  
  handle_touch_event do |event|
    @service.fill 50, 255, 100
    @service.stroke 50, 255, 100
    @service.ellipse event.get_x, event.get_y, 16, 16
  end

end

random.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]

max_x, max_y = o.width, o.height
loop do
    o.stroke 0
    o.fill 155
    o.ellipse rand(max_x), rand(max_y), rand(100), rand(100)
end

text.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]


text = $<.read
o.fill 0, 0, 0, 240
o.text_font o.create_font "Courier", 32, true
o.text text, 12, 52
o.fill 255, 255, 255, 240
o.text text, 10, 50

tk_mouse_client.rb

require 'rinda/ring'

DRb.start_service

ring_server = Rinda::RingFinger.primary
o = ring_server.read([:name,:processing,nil,nil])[2]
width, height = o.width, o.height

require 'tk'
canvas = TkCanvas.new(:width => 640, :height => 440)
canvas.pack
canvas.bind(
  "B1-Motion",
  lambda { |x, y|
    o.ellipse(
      width * (x.to_f / canvas.width),
      height * (y.to_f / canvas.height),
      50, 50
    )
  },
  "%x %y"
)
Tk.mainloop

require 'drb'
o = DRbObject.new(nil, 'druby://192.168.66.245:9000')
text = "BRYCE"
o.text_font o.create_font "Helvetica", 64, true
(0..10).each do |i|
  o.fill 255-(10*i), 255-(5*i), 255-(25*i), 240
 o.text text, 10+(5*i), 50+(15*i)
end

require 'drb'
o = DRbObject.new(nil, 'druby://192.168.66.245:9000')
text = "//BRYCE web 2.0"
o.text_font o.create_font "Helvetica", 64, true
(0..2).each do |i|
  o.fill 255-(100*i), 255-(50*i), 255-(120*i), 240
  o.text text, 80+(5*i), 100+(15*i)
end
o.stroke 255, 255, 255
o.line 30, 50, 120, 50
o.line 120,50, 90, 20
o.line 120, 50, 90, 80