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Limnoria/plugins/Words.py

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#!/usr/bin/env python
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###
# Copyright (c) 2002-2004, Jeremiah Fincher
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# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
"""
This handles interesting things to do with a dictionary (words) database.
"""
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__revision__ = "$Id$"
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import supybot
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import supybot.plugins as plugins
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import os
import re
import copy
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import time
import random
import string
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import supybot.conf as conf
import supybot.utils as utils
import supybot.ircutils as ircutils
import supybot.privmsgs as privmsgs
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import supybot.registry as registry
import supybot.callbacks as callbacks
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conf.registerPlugin('Words')
conf.registerGlobalValue(conf.supybot.plugins.Words, 'file',
conf.DataFilename('words', """Determines what file in your data directory
will be used by this plugin as its list of words."""))
conf.registerGroup(conf.supybot.plugins.Words, 'hangman')
conf.registerChannelValue(conf.supybot.plugins.Words.hangman, 'maxTries',
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registry.Integer(6, """Determines how many opportunities users will have to
guess letters in the hangman game."""))
conf.registerChannelValue(conf.supybot.plugins.Words.hangman, 'prefix',
registry.StringWithSpaceOnRight('-= HANGMAN =- ', """Determines what prefix
string is placed in front of hangman-related messages sent to the
channel."""))
conf.registerChannelValue(conf.supybot.plugins.Words.hangman, 'timeout',
registry.Integer(300, """Determines how long a game must be idle before it
will be replaced with a new game."""))
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def wordsFile():
return file(conf.supybot.plugins.Words.file())
class HangmanGame:
def __init__(self):
self.tries = 0
self.guess = ''
self.prefix = ''
self.unused = ''
self.hidden = ''
self.timeout = 0
self.timeGuess = 0
self.guessed = False
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def getWord(self):
fd = wordsFile()
try:
return random.choice(fd).strip().lower()
finally:
fd.close()
def timedout(self):
elapsed = time.time() - self.timeGuess
return elapsed > self.timeout
def letterPositions(self, letter, word):
"""Returns a list containing the positions of letter in word."""
lst = []
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for (i, c) in enumerate(word):
if c == letter:
lst.append(i)
return lst
def addLetter(self, letter, word, pos):
"""
Replaces all characters of word at positions contained in pos
by letter.
"""
newWord = []
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for (i, c) in enumerate(word):
if i in pos:
newWord.append(letter)
else:
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newWord.append(c)
return ''.join(newWord)
def triesLeft(self, n=None):
"""
Returns the number of tries and the correctly pluralized try/tries
"""
if n is None:
n = self.tries
return utils.nItems('try', n)
def letterArticle(self, letter):
"""Returns 'a' or 'an' to match the letter that will come after."""
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anLetters = 'aefhilmnorsx'
if letter in anLetters:
return 'an'
else:
return 'a'
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class Words(callbacks.Privmsg):
def callCommand(self, command, irc, msg, args):
# We'll catch the IOError here.
try:
callbacks.Privmsg.callCommand(self, command, irc, msg, args)
except EnvironmentError, e:
irc.error('I couldn\'t open the words file. This plugin expects '
'a words file (i.e., a file with one word per line, in '
'sorted order) to be at %s. Contact the owner of this '
'bot to remedy this situation.' %
self.registryValue('file'))
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def crossword(self, irc, msg, args):
"""<word>
Gives the possible crossword completions for <word>; use underscores
('_') to denote blank spaces.
"""
word = privmsgs.getArgs(args).lower()
word = re.escape(word)
word = word.replace('\\_', '_') # Stupid re.escape escapes underscores!
word = word.replace('_', '.')
word = '^%s$' % word
wordRe = re.compile(word, re.I)
words = []
fd = wordsFile()
try:
for line in fd:
line = line.strip()
if wordRe.match(line):
words.append(line)
if len(words) > 100:
irc.reply('More than 100 words matched.')
return
finally:
fd.close()
hiddens = [game.hidden for game in self.games.itervalues()
if not game.timedout()]
if hiddens and any(hiddens.__contains__, words):
irc.error('Sorry, one of the responses would\'ve been an answer '
'in a currently active hangman game.')
return
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if words:
words.sort()
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irc.reply(utils.commaAndify(words))
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else:
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irc.reply('No matching words were found.')
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###
# HANGMAN
###
games = ircutils.IrcDict()
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validLetters = list(string.ascii_lowercase)
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def endGame(self, channel):
del self.games[channel]
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def letters(self, irc, msg, args):
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"""[<channel>]
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Returns the unused letters that can be guessed in the hangman game
in <channel>. <channel> is only necessary if the message isn't sent in
the channel itself.
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"""
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channel = privmsgs.getChannel(msg, args)
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if channel in self.games:
game = self.games[channel]
if game is not None:
self._hangmanReply(irc, channel, ' '.join(game.unused))
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return
irc.error('There is currently no hangman game in %s.' % channel)
def _hangmanReply(self, irc, channel, s):
s = self.registryValue('hangman.prefix', channel=channel) + s
irc.reply(s, prefixName=False)
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def hangman(self, irc, msg, args):
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"""[<channel>]
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Creates a new game of hangman in <channel>. <channel> is only
necessary if the message isn't sent in the channel itself.
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"""
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channel = privmsgs.getChannel(msg, args)
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# Fill our dictionary of games
if channel not in self.games:
self.games[channel] = None
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# We only start a new game if no other game is going on right now
if self.games[channel] is None:
self.games[channel] = HangmanGame()
game = self.games[channel]
game.timeout = self.registryValue('hangman.timeout', channel)
game.timeGuess = time.time()
game.tries = self.registryValue('hangman.maxTries', channel)
game.prefix = self.registryValue('hangman.prefix', channel)
game.guessed = False
game.unused = copy.copy(self.validLetters)
try:
game.hidden = game.getWord()
except EnvironmentError, e:
del self.games[channel]
raise
game.guess = re.sub('[%s]' % string.ascii_lowercase, '_',
game.hidden)
self._hangmanReply(irc, channel,
'Okay ladies and gentlemen, you have '
'a %s-letter word to find, you have %s!' %
(game.guess.count('_'), game.triesLeft()))
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# So, a game is going on, but let's see if it's timed out. If it is
# we create a new one, otherwise we inform the user
else:
game = self.games[channel]
if game.timedout():
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self.endGame(channel)
self.hangman(irc, msg, args)
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else:
secondsElapsed = time.time() - game.timeGuess
irc.reply('Sorry, there is already a game going on. '
'%s left before the game times out.' %
utils.timeElapsed(game.timeout - secondsElapsed))
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def guess(self, irc, msg, args):
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"""[<channel>] <letter|word>
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Try to guess a single letter or the whole word. If you try to guess
the whole word and you are wrong, you automatically lose.
"""
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channel = privmsgs.getChannel(msg, args)
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try:
game = self.games[channel]
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if game is None:
raise KeyError
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except KeyError:
irc.error('There is no hangman game going on right now.')
return
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letter = privmsgs.getArgs(args)
game.timeGuess = time.time()
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# User input a valid letter that hasn't been already tried
if letter in game.unused:
del game.unused[game.unused.index(letter)]
if letter in game.hidden:
self._hangmanReply(irc, channel,
'Yes, there is %s %r.' %
(game.letterArticle(letter), letter))
game.guess = game.addLetter(letter, game.guess,
game.letterPositions(letter,
game.hidden))
if game.guess == game.hidden:
game.guessed = True
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else:
self._hangmanReply(irc, channel, 'No, there is no %r.' % letter)
game.tries -= 1
self._hangmanReply(irc, channel,
'%s (%s left)' % (game.guess, game.triesLeft()))
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# User input a valid character that has already been tried
elif letter in self.validLetters:
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irc.error('That letter has already been tried.')
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# User tries to guess the whole word or entered an invalid input
else:
# The length of the word tried by the user and that of the hidden
# word are same, so we assume the user wants to guess the whole
# word
if len(letter) == len(game.hidden):
if letter == game.hidden:
game.guessed = True
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else:
self._hangmanReply(irc, channel,
'You did not guess the word, so you '
'lose a try.')
game.tries -= 1
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else:
# User input an invalid character
if len(letter) == 1:
irc.error('That is not a valid letter.')
# User input an invalid word (len(try) != len(hidden))
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else:
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irc.error('That is not a valid word guess.')
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# Verify if the user won or lost
if game.guessed and game.tries > 0:
self._hangmanReply(irc, channel,
'You win! The word was indeed %r.' %
game.hidden)
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self.endGame(channel)
elif not game.guessed and game.tries == 0:
self._hangmanReply(irc, channel,
'You lose! The word was %r.' % game.hidden)
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self.endGame(channel)
###
# END HANGMAN
###
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Class = Words
# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: