processing + propane sketch

0508_easing_does_it.rb

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

# easing does it  
# propane graffiti by 8mana
# based on code by Casey Reas and Ben Fry

class Easing < Propane::App
  def settings
    size 220, 120
  end

  def setup
    sketch_title 'easing does it'
    $x = 0
    $easing = 0.01
    $diameter = 12
  end

  def draw
    targetX = mouseX
    $x += (targetX - $x) * $easing
    ellipse $x, 40, 12, 12
    puts targetX.to_s + " : " + $x.to_s
  end
end

Easing.new