Contents

require 'propane'
require_relative 'lib/rain_drops'

class Raining < Propane::App
  # raining after Rain1 by Thomas R. 'TomK32' Koll
  #
  # draws raindrops as bezier shapes and moves them downwards
  #
  # available key commands:
  #  + make raindrops heavier/bigger
  #  - make raindrops smaller
  #  a more raindrops
  #  s less raindrops
  #  <SPACE>
  #
  # License: Same as processing
  #
  
  attr_reader :drops, :weight, :drops_size, :paused
  
  def setup
    size 640, 480
    frame_rate 30  
    @drops_size = 20
    @weight = 20
    @drops = RainDrops.new width, height
    @paused = false
    font = create_font('Georgia', 15)
    text_font(font)
  end
  
  def draw
    return if paused
    # we fill up with new drops randomly
    drops.fill_up(weight) while rand(drops_size / 3) < (drops_size - drops.size)
    # the less drops the darker it is
    background 127 + 127 * (drops.size / drops_size.to_f)
    drops.run
    form = '%d of %d drops with a size of %d'
    text(format(form, drops.size, drops_size, weight), 10, 20)
  end
  
  def key_pressed
    case key
    when '+'
      @weight += 5
    when '-'
      @weight -= 5 if weight > 10
    when 'a'
      @drops_size += 5
    when 's'
      @drops_size -= 5 if drops_size > 5
    when ' '
      @paused = !paused
    end
  end
end

Raining.new title: 'Raining'

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
propane-0.7.0-java	examples/regular/raining.rb
propane-0.6.0-java	examples/regular/raining.rb
propane-0.5.0-java	examples/regular/raining.rb
propane-0.4.0.pre-java	examples/regular/raining.rb