dice

dice_ewsn.rb

class Dice
  attr_accessor :coords
  def initialize
    @coords = [[0,0,1],[1,0,0],[0,-1,0],[0,1,0],[-1,0,0],[0,0,-1]]
  end

  def top
    @coords.each_with_index{|coord,i|
      if coord == [0,0,1]
        return i+1
      end
    }
  end

  def roll(s)
    if s ==  "N" || s == "S"
      @coords.each{|coord|
        tmp = coord.clone
        coord[0] = tmp[2]
        coord[0] *= -1 if s == "S"
        coord[2] = tmp[0]
        coord[2] *= -1 if s == "N"
      }
    end
    if s ==  "W" || s == "E"
      @coords.each{|coord|
        tmp = coord.clone
        coord[1] = tmp[2]
        coord[1] *= -1 if s == "W"
        coord[2] = tmp[1]
        coord[2] *= -1 if s == "E"
      }
    end
    top
  end
end