processing + propane sketch

0521_move_with_arrow_keys.rb

#!/usr/bin/env jruby
# frozen_string_literal: false
require 'propane'

# move with arrow keys  
# propane graffiti by 8mana
# based on code by Casey Reas and Ben Fry

class ArrowKeys < Propane::App
  def settings
    size 480, 120
  end

  def setup
    sketch_title 'move with arrow keys'
    $x = 215
  end

  def draw
    if key_pressed? && key == CODED
      if key_code == LEFT
        $x -= 1
      elsif key_code == RIGHT
        $x += 1
      end
    end
    rect $x, 45, 50, 50
  end
end

ArrowKeys.new