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import warnings
from . import DealFormat
from .. import dto
class RZDFormat(DealFormat):
number_warning = '.rzd file format assumes consequent deal numbers from 1'
@property
def suffix(self):
return '.rzd'
def parse_deal(self, data, offset=0):
deal = dto.Deal()
for card, byte in enumerate(data):
byte = ord(byte)
for suit in range(3, -1, -1):
deal.hands[(byte%4 - offset)%4][suit].append(self.cards[card])
byte /= 4
return deal.hands
def parse_content(self, content):
warnings.warn(self.number_warning)
dealset = []
header = None
number = 1
while True:
data = content.read(13)
if len(data) < 13:
if len(data) != 0:
warnings.warn('.rzd data truncated: %s' % (data))
break
if header is None:
header = data
continue
deal = dto.Deal()
deal.number = number
deal.dealer = deal.get_dealer(number)
deal.vulnerable = deal.get_vulnerability(number)
deal.hands = self.parse_deal(data)
dealset.append(deal)
number += 1
return dealset
def dump_deal(self, deal, offset=0):
value = ''
values = [None] * 52
for i, hand in enumerate(deal.hands):
for suit, cards in enumerate(hand):
for card in cards:
try:
idx = self.cards.index(card)
except ValueError:
raise RuntimeError('invalid card: %s' % (card))
values[idx*4+suit] = (i + offset)%4
for i in range(0, 13):
byte = 0
for j in range(0, 4):
byte *= 4
byte += values[4*i+j]
value += chr(byte)
return value
def output_content(self, out_file, dealset):
warnings.warn(self.number_warning)
board_count = len(dealset)
out_file.write(chr(board_count%256))
out_file.write(chr(board_count/256))
out_file.write(' '*11)
for deal in dealset:
out_file.write(self.dump_deal(deal))
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