Live Coding

Ruby-Processing is a playground for live coding. Sketches can be loaded into an interactive code session (IRB) using script/live. Once your sketch is running, the full powers of Ruby metaprogramming are there for you to use. Methods and classes can be redefined on the fly, arguments passed, values changed and all that. @app will give you a handle to the running sketch. Use it like so:

>> script/live samples/jwishy.rb
irb(main):001:0> def @app.bluish    
irb(main):002:1> Math.sin(@y_wiggle)
irb(main):003:1> end 
irb(main):004:0> @app.background = 0.5, 0.5, 0.5, 0.035

This opens up the WishyWorm example in a window, and redefines the bluish method to return a function of the y_wiggle. The blue begins to pulse. Then the background is set to be a mostly transparent gray.