require 'time'

module Raykit
    # Provides functionality to record the time execution times

    class Timer
        # The time at which start occurred

        attr_accessor :start_time

        def initialize
            @start_time=Time.now
        end

        # The elapsed time, in seconds, since the timer started

        def elapsed
            return Time.now-@start_time
        end

        # The elapsed time, in seconds, as a formatted string

        def elapsed_str(pad=0)
            Timer.get_elapsed_str(elapsed,pad)
        end

        # Converts a time span in seconds to a formatted string

        def self.get_elapsed_str(elapsed,pad=0)
            "[" + "%.0f" % (elapsed) + "s]".ljust(pad)
        end
    end
end