A slim layer to communicate with Processing from JRuby, features a polyglot maven build, this started out as a non serious project by Phillip Cunningam called ribiprocessing. It has now morphed into an experimental project for ruby-processing so we can now "Cook with Gas". We have created a configuration free version of ruby processing, albeit tied to processing-2.2.1, where we get processing core from maven central (and opengl currently testing on linux64/mac). These jars are small enough to include in the gem distribution, and hence we should not require configuration. This has created a scriptable version, ie files get run direct from jruby, but you could use jruby-complete if you used the propane script (avoids need to give the absolute data path for the data folder, but would also be needed for a watch mode).

• jdk8+ since version 0.6.0
• jruby-9.1.2.0+
• mvn-3.3.1+ (development only)

rake rake gem rake javadoc

jgem install propane-{version}-java.gem # local install jgem install propane # from rubygems.org

require 'propane' class FlashingLightsSketch < Propane::App attr_reader :random_background def initialize opts={} @random_background = opts.fetch :random_background, RandomBackground.new(self) super end def setup size(800, 600) end def draw random_background.generate end end class RandomBackground include Propane::Proxy def generate background(rand(255), rand(255), rand(255)) end end FlashingLightsSketch.new title: "Flashing Lights"

To install the samples and jruby-complete. The samples get copied to ~/propane_samples.

propane --install

There is a handy sketch creator tool

propane -c my_sketch 200 200 # for default renderer propane -c my_sketch 200 200 p2d # for opengl 2D renderer propane -c my_sketch 200 200 p3d # for opengl 3D renderer To run sketches using the installed jruby-complete, you can also use shortform `-r` ```bash propane --run my_sketch.rb # or jruby -S propane --run my_sketch.rb # belt and braces version