# Class for parsing ENERGY file
#
# Written by k-fleak
#

class ParseEnergy
  
  def initialize(filename)
    @input = open(filename, "r")
    calcEnergy
  end
  
  def getEnergy
    # key => structure index, value: energy
    @energy
  end
  
  def getEnergyArray
    @energyArray
  end
  
  private
  
  def calcEnergy
    @energy = Hash.new()
    @energyArray = Array.new()
    @input.each do |lines|
      unless lines.strip.empty? then
        lineArr = lines.strip.split 
        @energy[lineArr[0]] = lineArr[1].to_f
        @energyArray.push([lineArr[0], lineArr[1].to_f])        
      end
    end
  end
  
end

#parse = ParseEnergy.new("ENERGY.surf")
#p parse.getEnergy.sort