prawn-image.rb

require 'open-uri'
require 'prawn'

class OrangeTree

  def initialize
    @height = 0
    @orange_count = 0
    @fruit = 0
    @age = 0
    @pdf = Prawn::Document.new
    @pdf.image open("http://membership.drphillipschamber.org/wp-content/uploads/2017/04/OTGC-Logo-w-transparent-background.png"), at: [50, 450], width: 250
  end

  def write_to_pdf(text)
    @pdf.text text
  end

  def write_pdf
    File.write("orangetree.pdf", @pdf.render)
  end

  def one_year
    if @height = @height.to_f + (rand 0.5 - 1.2) #growth per year
      @age = @age + 1
      @orange_count = 0
      write_to_pdf "The tree is #{@age} years old and #{@height.round(2)}M tall"
      if @age >= 2
        @orange_count = (rand 1-10) * @age #amount of oranges for specific year
        if  @orange_count >= 1
          write_to_pdf "The tree holds #{@orange_count} mighty fine oranges!"
          if @age >= 2.5
            @orange_count >= 1
            @orange_count = @orange_count - 1 #you picked an orange
            write_to_pdf "You just picked a delicious orange leaving #{@orange_count} oranges in the tree"
            if @height >= 10
              write_to_pdf "The tree died and there are no more oranges to pick"
            end
          end
        end
      end
    end
  end

end
tree = OrangeTree.new

5.times do
  tree.one_year
end

tree.write_pdf