gistfile1.rb

class Spinner
  CHARS = %w{- \\ | / }
  def initialize
    @step=-1
  end
  
  def to_s
    "\r#{char}"
  end
  
  def method_name
    
  end
  
  def char
    CHARS[@step%CHARS.length]
  end
  
  def next
    @step+= 1
    self
  end
end

s=Spinner.new
10.times do 
  sleep 0.3
  print s.next
end