@@ -1,40 +1,40 @@ -# dragon.rb ruby-processing NB: :alpha is not implemented in vanilla ruby-processing +# contributed by monkstone + load_library 'context_free' def setup_the_dragon @dragon = ContextFree.define do + rule :start do dragon :alpha => 1 end + rule :dragon do - square :hue => 0, :brightness => 1, :saturation => 1, :alpha => 0.01 + square :hue => 0, :brightness => 0, :saturation => 1, :alpha => 0.02 split do - dragon :size => 1/Math.sqrt(2), :rotation => -45, :x => 0.25, :y => 0.25 + dragon :size => 1/Math.sqrt(2), :rotation => -45, :x => 0.25, :y => 0.25 rewind dragon :size => 1/Math.sqrt(2), :rotation => 135, :x => 0.25, :y => 0.25 rewind end end + end end - def setup - size 600, 400 + size 800, 500 setup_the_dragon smooth draw_it - save_frame("dragon.png") end - def draw # Do nothing. end - def draw_it background 255 - @dragon.render :start, :size => width*0.8, :stop_size => 2, - :start_x => width/3, :start_y => height/3 + @dragon.render :start, :size => width*0.8, :stop_size => 2, + :start_x => width/3, :start_y => height/3.5 end samples/dragon.rb b915cbab5530a32a54771610e0f1590681eed76b Jeremy Ashkenas jashkenas@gmail.com http://github.com/jashkenas/context_free/commit/9ba71444963494dc5ae7647add99ca90a10f6ed4 9ba71444963494dc5ae7647add99ca90a10f6ed4 2009-11-08T12:48:22-08:00 2009-11-08T12:48:22-08:00 merged in martin's dragon example b9b32a27c3c2adcdbcad73cc3157280bd79abdb9 Jeremy Ashkenas jashkenas@gmail.com