orange_tree.rb

# This is how you define your own custom exception classes
class NoOrangesError < StandardError
end

class OrangeTree

  def initialize
    @age = 0
    @orange_on_tree = []
    @height = 0
    puts "Orange is growing!"
  end

  attr_reader :age, :height

  # Ages the tree one year
  def age!
    @age += 1

    if @age <= 60
      @height += 10
    end

    @orange_on_tree = []



    if @age > 5 && @age < 60
      a = rand(1..10)
      a.times do
        @orange_on_tree << Orange.new
      end
    end

  end

  def dead?
    if @age >= 60
      return true
    else
      false
    end
  end

  # # Returns +true+ if there are any oranges on the tree, +false+ otherwise
  def any_oranges?
    # orange is older than certain age
    # byebug
    if @orange_on_tree == []
      false
    else
      true
    end
  end

  # # Returns an Orange if there are any
  # # Raises a NoOrangesError otherwise
  def pick_an_orange!
    raise NoOrangesError, "This tree has no oranges" unless self.any_oranges?
    # orange-picking logic goes here
    @orange_on_tree.shift
  end
end

class Orange
  # Initializes a new Orange with diameter +diameter+
  attr_reader :diameter
  def initialize
    @diameter = rand(3..5)
  end

end

tree = OrangeTree.new

tree.age! until tree.any_oranges?

  puts "Tree is #{tree.age} years old and #{tree.height} feet tall"
until tree.dead?
  basket = []

  while tree.any_oranges?
    basket << tree.pick_an_orange!
  end

  sum = 0
  basket.each {|orange| sum = sum + orange.diameter}

  avg_diameter = sum / basket.length
  puts "Year #{tree.age} Report"
  puts "Tree height: #{tree.height} feet"
  puts "Harvest : #{basket.size} oranges with an average diameter of #{avg_diameter} inches"
  puts ""

  tree.age!
end


puts "Alas, the tree, she is dead."