yokohamarb第7回　ボウリングスコア計算

yokohamarb_7

class Bol
  def getPin(pins, index)
    if index > pins.length - 1
      0
    elsif pins[index] == 'G'
      0
    elsif  pins[index] == '/' || pins[index] == 'x'
      getPin(pins, index + 1)
    else
      pins[index]
    end
  end
  
  def score(pins)
    post = 2
    
    count = 0
    for index in 0..(pins.length - 1)
      if pins[index] == '/'
        count += 10 - getPin(pins, index - 1)
        count += getPin(pins, index + 1)
      elsif pins[index] == 'x'
        count += 10
        if index > 17
          post = 1
        end
        count += getPin(pins, index + post)
        count += getPin(pins, index + post + 1)
      elsif pins[index] == 'G'
      else
        count = count + getPin(pins, index)
      end
    end
    count
  end
  
  def bowl(pin)
    if @pins == nil
      @pins = [pin]
    else
      @pins << pin
    end
    score @pins
  end
end
#puts score([1,4,2,8,5,0,10,0,0,4,5,5,2,0,6,1,10,0,10,5,5])
#puts score([1,4,2,'/',5,0,'x',0,'G',4,5,'/',2,0,6,1,'x',0,'x',5,'/'])

bol = Bol.new
puts bol.bowl(1)
puts bol.bowl(4)
puts bol.bowl(2)
puts bol.bowl('/')
puts bol.bowl(5)
puts bol.bowl(0)
puts bol.bowl('x')
puts bol.bowl(0)
puts bol.bowl('G')
puts bol.bowl(4)
puts bol.bowl(5)
puts bol.bowl('/')
puts bol.bowl(2)
puts bol.bowl(0)
puts bol.bowl(6)
puts bol.bowl(1)
puts bol.bowl('x')
puts bol.bowl(0)
puts bol.bowl('x')
puts bol.bowl(5)
puts bol.bowl('/')