diff src/plugins/plugin_misc_tarot.py @ 223:86d249b6d9b7

Files reorganisation
author Goffi <goffi@goffi.org>
date Wed, 29 Dec 2010 01:06:29 +0100
parents plugins/plugin_misc_tarot.py@5a2fb307485d
children b1794cbb88e5
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/plugins/plugin_misc_tarot.py	Wed Dec 29 01:06:29 2010 +0100
@@ -0,0 +1,713 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+"""
+SAT plugin for managing xep-0045
+Copyright (C) 2009, 2010  Jérôme Poisson (goffi@goffi.org)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from logging import debug, info, warning, error
+from twisted.words.xish import domish
+from twisted.internet import protocol, defer, threads, reactor
+from twisted.words.protocols.jabber import client, jid, xmlstream
+from twisted.words.protocols.jabber import error as jab_error
+from twisted.words.protocols.jabber.xmlstream import IQ
+import os.path
+import pdb
+import random
+
+from zope.interface import implements
+
+from wokkel import disco, iwokkel, data_form
+from sat.tools.xml_tools import dataForm2xml
+from sat.tools.games import TarotCard
+
+try:
+    from twisted.words.protocols.xmlstream import XMPPHandler
+except ImportError:
+    from wokkel.subprotocols import XMPPHandler
+
+MESSAGE = '/message'
+NS_CG = 'http://www.goffi.org/protocol/card_game'
+CG_TAG = 'card_game'
+CG_REQUEST = MESSAGE + '/' + CG_TAG + '[@xmlns="' + NS_CG + '"]'
+
+PLUGIN_INFO = {
+"name": "Tarot cards plugin",
+"import_name": "Tarot",
+"type": "Misc",
+"protocols": [],
+"dependencies": ["XEP_0045"],
+"main": "Tarot",
+"handler": "yes",
+"description": _("""Implementation of Tarot card game""")
+}
+
+
+class Tarot():
+
+    def __init__(self, host):
+        info(_("Plugin Tarot initialization"))
+        self.host = host
+        self.games={}
+        self.contrats = [_('Passe'), _('Petite'), _('Garde'), _('Garde Sans'), _('Garde Contre')]
+        host.bridge.addMethod("tarotGameCreate", ".communication", in_sign='sass', out_sign='', method=self.createGame) #args: room_jid, players, profile
+        host.bridge.addMethod("tarotGameReady", ".communication", in_sign='sss', out_sign='', method=self.newPlayerReady) #args: player, referee, profile
+        host.bridge.addMethod("tarotGameContratChoosed", ".communication", in_sign='ssss', out_sign='', method=self.contratChoosed) #args: player, referee, contrat, profile
+        host.bridge.addMethod("tarotGamePlayCards", ".communication", in_sign='ssa(ss)s', out_sign='', method=self.play_cards) #args: player, referee, cards, profile
+        host.bridge.addSignal("tarotGameStarted", ".communication", signature='ssass') #args: room_jid, referee, players, profile
+        host.bridge.addSignal("tarotGameNew", ".communication", signature='sa(ss)s') #args: room_jid, hand, profile
+        host.bridge.addSignal("tarotGameChooseContrat", ".communication", signature='sss') #args: room_jid, xml_data, profile
+        host.bridge.addSignal("tarotGameShowCards", ".communication", signature='ssa(ss)a{ss}s') #args: room_jid, type ["chien", "poignée",...], cards, data[dict], profile
+        host.bridge.addSignal("tarotGameCardsPlayed", ".communication", signature='ssa(ss)s') #args: room_jid, player, type ["chien", "poignée",...], cards, data[dict], profile
+        host.bridge.addSignal("tarotGameYourTurn", ".communication", signature='ss') #args: room_jid, profile
+        host.bridge.addSignal("tarotGameScore", ".communication", signature='ssasass') #args: room_jid, xml_data, winners (list of nicks), loosers (list of nicks), profile
+        host.bridge.addSignal("tarotGameInvalidCards", ".communication", signature='ssa(ss)a(ss)s') #args: room_jid, game phase, played_cards, invalid_cards, profile
+        self.deck_ordered = []
+        for value in ['excuse']+map(str,range(1,22)):
+            self.deck_ordered.append(TarotCard(("atout",value)))
+        for suit in ["pique", "coeur", "carreau", "trefle"]:
+            for value in map(str,range(1,11))+["valet","cavalier","dame","roi"]:
+                self.deck_ordered.append(TarotCard((suit, value)))
+
+    def createGameElt(self, to_jid, type="normal"):
+        type = "normal" if to_jid.resource else "groupchat"
+        elt = domish.Element(('jabber:client','message'))
+        elt["to"] = to_jid.full()
+        elt["type"] = type
+        elt.addElement((NS_CG, CG_TAG))
+        return elt
+
+    def __card_list_to_xml(self, cards_list, elt_name):
+        """Convert a card list to domish element"""
+        cards_list_elt = domish.Element(('',elt_name))
+        for card in cards_list:
+            card_elt = domish.Element(('','card'))
+            card_elt['suit'] = card.suit
+            card_elt['value'] = card.value
+            cards_list_elt.addChild(card_elt) 
+        return cards_list_elt
+
+    def __xml_to_list(self, cards_list_elt):
+        """Convert a domish element with cards to a list of tuples"""
+        cards_list = []
+        for card in cards_list_elt.elements():
+            cards_list.append((card['suit'], card['value']))
+        return cards_list
+
+    def __create_started_elt(self, players):
+        """Create a game_started domish element"""
+        started_elt = domish.Element(('','started'))
+        idx = 0
+        for player in players:
+            player_elt = domish.Element(('','player'))
+            player_elt.addContent(player)
+            player_elt['index'] = str(idx)
+            idx+=1
+            started_elt.addChild(player_elt)
+        return started_elt
+
+    def __ask_contrat(self):
+        """Create a element for asking contrat"""
+        contrat_elt = domish.Element(('','contrat'))
+        form = data_form.Form('form', title=_('contrat selection'))
+        field = data_form.Field('list-single', 'contrat', options=map(data_form.Option, self.contrats), required=True)
+        form.addField(field)
+        contrat_elt.addChild(form.toElement())
+        return contrat_elt
+
+    def __give_scores(self, scores, winners, loosers):
+        """Create an element to give scores
+        @param scores: unicode (can contain line feed)
+        @param winners: list of unicode nicks of winners
+        @param loosers: list of unicode nicks of loosers"""
+
+        score_elt = domish.Element(('','score'))
+        form = data_form.Form('form', title=_('scores'))
+        for line in scores.split('\n'):
+            field = data_form.Field('fixed', value = line)
+            form.addField(field)
+        score_elt.addChild(form.toElement())
+        for winner in winners:
+            winner_elt = domish.Element(('','winner'))
+            winner_elt.addContent(winner)
+            score_elt.addChild(winner_elt)
+        for looser in loosers:
+            looser_elt = domish.Element(('','looser'))
+            looser_elt.addContent(looser)
+            score_elt.addChild(looser_elt)
+        return score_elt
+
+    def __invalid_cards_elt(self, played_cards, invalid_cards, game_phase):
+        """Create a element for invalid_cards error
+        @param list_cards: list of Card
+        @param game_phase: phase of the game ['ecart', 'play']"""
+        error_elt = domish.Element(('','error'))
+        played_elt = self.__card_list_to_xml(played_cards, 'played')
+        invalid_elt = self.__card_list_to_xml(invalid_cards, 'invalid')
+        error_elt['type'] = 'invalid_cards'
+        error_elt['phase'] = game_phase
+        error_elt.addChild(played_elt)
+        error_elt.addChild(invalid_elt)
+        return error_elt
+        
+    def __next_player(self, game_data, next_pl = None):
+        """Increment player number & return player name
+        @param next_pl: if given, then next_player is forced to this one
+        """
+        if next_pl:
+            game_data['current_player'] = game_data['players'].index(next_pl)
+            return next_pl
+        else:
+            pl_idx = game_data['current_player'] = (game_data['current_player'] + 1) % len(game_data['players'])
+            return game_data['players'][pl_idx]
+
+    def __winner(self, game_data):
+        """give the nick of the player who win this trick"""
+        players_data = game_data['players_data']
+        first = game_data['first_player']
+        first_idx = game_data['players'].index(first) 
+        suit_asked = None
+        strongest = None
+        winner = None
+        for idx in [(first_idx + i) % 4 for i in range(4)]:
+            player = game_data['players'][idx]
+            card = players_data[player]['played']
+            if card.value == "excuse":
+                continue
+            if suit_asked == None:
+                suit_asked = card.suit
+            if (card.suit == suit_asked or card.suit == "atout") and card > strongest:
+                strongest = card
+                winner = player
+        assert winner
+        return winner
+
+    def __excuse_hack(self, game_data, played, winner):
+        """give a low card to other team and keep excuse if trick is lost
+        @param game_data: data of the game
+        @param played: cards currently on the table
+        @param winner: nick of the trick winner"""
+        #TODO: manage the case where excuse is played on the last trick (and lost)
+        #TODO: gof: manage excuse (fool)
+        players_data = game_data['players_data']
+        excuse = TarotCard(("atout","excuse"))
+
+        #we first check if the Excuse was already player
+        #and if somebody is waiting for a card
+        for player in game_data['players']:
+            if players_data[player]['wait_for_low']:
+                #the excuse owner has to give a card to somebody
+                if winner == player:
+                    #the excuse owner win the trick, we check if we have something to give
+                    for card in played:
+                        if card.points == 0.5:
+                            pl_waiting = players_data[player]['wait_for_low']
+                            played.remove(card)
+                            players_data[pl_waiting]['levees'].append(card)
+                            debug (_('Player %(excuse_owner)s give %(card_waited)s to %(player_waiting)s for Excuse compensation') % {"excuse_owner":player, "card_waited": card, "player_waiting":pl_waiting})
+                            return
+                return
+
+        if not excuse in played:
+            #the Excuse is not on the table, nothing to do
+            return
+        
+        excuse_player = None #Who has played the Excuse ?
+        for player in game_data['players']:
+            if players_data[player]['played'] == excuse:
+                excuse_player = player
+                break
+            
+        if excuse_player == winner:
+            return #the excuse player win the trick, nothing to do
+        
+        #first we remove the excuse from played cards
+        played.remove(excuse)
+        #then we give it back to the original owner 
+        owner_levees = players_data[excuse_player]['levees']
+        owner_levees.append(excuse)
+        #finally we give a low card to the trick winner
+        low_card = None
+        #We look backward in cards won by the Excuse owner to
+        #find a low value card
+        for card_idx in range(len(owner_levees)-1, -1, -1):
+            if owner_levees[card_idx].points == 0.5:
+                low_card = owner_levees[card_idx]
+                del owner_levees[card_idx]
+                players_data[winner]['levees'].append(low_card)
+                debug (_('Player %(excuse_owner)s give %(card_waited)s to %(player_waiting)s for Excuse compensation') % {"excuse_owner":excuse_player, "card_waited": low_card, "player_waiting":winner})
+                break
+        if not low_card: #The player has no low card yet
+            #TODO: manage case when player never win a trick with low card
+            players_data[excuse_player]['wait_for_low'] = winner
+            debug(_("%(excuse_owner)s keep the Excuse but has not card to give, %(winner)s is waiting for one") % {'excuse_owner':excuse_player, 'winner':winner})
+
+
+    def __calculate_scores(self, game_data):
+        """The game is finished, time to know who won :)
+        @param game_data: data of the game
+        @return: tuple with (string victory message, list of winners, list of loosers)"""
+        players_data = game_data['players_data']
+        levees = players_data[game_data['attaquant']]['levees']
+        score = 0
+        nb_bouts = 0
+        bouts = []
+        for card in levees:
+            if card.bout:
+                nb_bouts +=1
+                bouts.append(card.value)
+            score += card.points
+        
+        #We we do a basic check on score calculation
+        check_score = 0
+        defenseurs = game_data['players'][:]
+        defenseurs.remove(game_data['attaquant'])
+        for defenseur in defenseurs:
+            for card in players_data[defenseur]['levees']:
+                check_score+=card.points
+        if game_data['contrat'] == "Garde Contre":
+            for card in game_data['chien']:
+                check_score+=card.points
+        assert (score + check_score == 91)
+        
+        point_limit = None
+        if nb_bouts == 3:
+            point_limit = 36
+        elif nb_bouts == 2:
+            point_limit = 41
+        elif nb_bouts == 1:
+            point_limit = 51
+        else:
+            point_limit = 56
+        if game_data['contrat'] == 'Petite':
+            contrat_mult = 1
+        elif game_data['contrat'] == 'Garde':
+            contrat_mult = 2
+        elif game_data['contrat'] == 'Garde Sans':
+            contrat_mult = 4
+        elif game_data['contrat'] == 'Garde Contre':
+            contrat_mult = 6
+        else:
+            error(_('INTERNAL ERROR: contrat not managed (mispelled ?)'))
+            assert(False)
+
+        victory = (score >= point_limit)
+        margin = abs(score - point_limit)
+        points_defenseur = (margin + 25) * contrat_mult * (-1 if victory else 1)
+        winners = []
+        loosers = []
+        player_score = {}
+        for player in game_data['players']:
+            #TODO: adjust this for 3 and 5 players variants
+            #TODO: manage bonuses (petit au bout, poignée, chelem)
+            player_score[player] = points_defenseur if player != game_data['attaquant'] else points_defenseur * -3
+            players_data[player]['score'] += player_score[player] #we add score of this game to the global score
+            if player_score[player] > 0:
+                winners.append(player)
+            else:
+                loosers.append(player)
+
+        scores_str = _('The attacker (%(attaquant)s) makes %(points)i and needs to make %(point_limit)i (%(nb_bouts)s oulder%(plural)s%(separator)s%(bouts)s): he %(victory)s') % {'attaquant':game_data['attaquant'], 'points':score, 'point_limit':point_limit, 'nb_bouts': nb_bouts, 'plural': 's' if nb_bouts>1 else '', 'separator':': ' if nb_bouts != 0 else '', 'bouts':','.join(map(str,bouts)), 'victory': 'win' if victory else 'loose'}
+        scores_str+='\n'
+        for player in game_data['players']:
+            scores_str+=_("\n--\n%(player)s:\nscore for this game ==> %(score_game)i\ntotal score ==> %(total_score)i") % {'player':player, 'score_game':player_score[player], 'total_score': players_data[player]['score']}
+        debug(scores_str)
+ 
+        return (scores_str, winners, loosers)
+
+    def __invalid_cards(self, game_data, cards):
+        """Checks that the player has the right to play what he wants to
+        @param game_data: Game data
+        @param cards: cards the player want to play
+        @return forbidden_cards cards or empty list if cards are ok"""
+        forbidden_cards = []
+        if game_data['stage'] == 'ecart':
+            for card in cards:
+                if card.bout or card.value=="roi":
+                    forbidden_cards.append(card)
+                #TODO: manage case where atouts (trumps) are in the dog
+        elif game_data['stage'] == 'play':
+            biggest_atout = None
+            suit_asked = None
+            players = game_data['players']
+            players_data = game_data['players_data']
+            idx = players.index(game_data['first_player'])
+            current_idx = game_data['current_player']
+            current_player = players[current_idx]
+            if idx == current_idx:
+                #the player is the first to play, he can play what he wants
+                return forbidden_cards
+            while (idx != current_idx):
+                player = players[idx]
+                played_card = players_data[player]['played']
+                if not suit_asked and played_card.value != "excuse":
+                    suit_asked = played_card.suit
+                if played_card.suit == "atout" and played_card > biggest_atout:
+                    biggest_atout = played_card
+                idx = (idx + 1) % len(players)
+            has_suit = False #True if there is one card of the asked suit in the hand of the player
+            has_atout = False
+            biggest_hand_atout = None
+
+            for hand_card in game_data['hand'][current_player]:
+                if hand_card.suit == suit_asked:
+                    has_suit = True
+                if hand_card.suit == "atout":
+                    has_atout = True
+                if hand_card.suit == "atout" and hand_card > biggest_hand_atout:
+                    biggest_hand_atout = hand_card
+
+            assert len(cards) == 1
+            card = cards[0]
+            if card.suit != suit_asked and has_suit and card.value != "excuse":
+                forbidden_cards.append(card)
+                return forbidden_cards
+            if card.suit != suit_asked and card.suit != "atout" and has_atout:
+                forbidden_cards.append(card)
+                return forbidden_cards
+            if card.suit == "atout" and card < biggest_atout and biggest_hand_atout > biggest_atout and card.value != "excuse":
+                forbidden_cards.append(card)
+        else:
+            error(_('Internal error: unmanaged game stage'))
+        return forbidden_cards
+
+
+    def __start_play(self, room_jid, game_data, profile):
+        """Start the game (tell to the first player after dealer to play"""
+        game_data['stage'] = "play"
+        next_player_idx = game_data['current_player'] = (game_data['init_player'] + 1) % len(game_data['players']) #the player after the dealer start
+        game_data['first_player'] = next_player = game_data['players'][next_player_idx]
+        to_jid = jid.JID(room_jid.userhost()+"/"+next_player) #FIXME: gof:
+        mess = self.createGameElt(to_jid)
+        yourturn_elt = mess.firstChildElement().addElement('your_turn')
+        self.host.profiles[profile].xmlstream.send(mess)
+
+
+    def createGame(self, room_jid_param, players, profile_key='@DEFAULT@'):
+        """Create a new game"""
+        debug (_("Creating Tarot game"))
+        room_jid = jid.JID(room_jid_param)
+        profile = self.host.memory.getProfileName(profile_key)
+        if not profile:
+            error (_("profile %s is unknown") % profile_key)
+            return
+        if self.games.has_key(room_jid):
+            warning (_("Tarot game already started in room %s") % room_jid.userhost())
+        else:
+            room_nick = self.host.plugins["XEP_0045"].getRoomNick(room_jid.userhost(), profile)
+            if not room_nick:
+                error ('Internal error')
+                return
+            referee = room_jid.userhost() + '/' + room_nick
+            status = {}
+            players_data = {}
+            for player in players:
+                players_data[player] = {'score':0}
+                status[player] = "init"
+            self.games[room_jid.userhost()] = {'referee':referee, 'players':players, 'status':status, 'players_data':players_data, 'hand_size':18, 'init_player':0, 'current_player': None, 'contrat': None, 'stage': None}
+            for player in players:
+                mess = self.createGameElt(jid.JID(room_jid.userhost()+'/'+player))
+                mess.firstChildElement().addChild(self.__create_started_elt(players))
+                self.host.profiles[profile].xmlstream.send(mess)
+
+    def newPlayerReady(self, player, referee, profile_key='@DEFAULT@'):
+        """Must be called when player is ready to start a new game"""
+        profile = self.host.memory.getProfileName(profile_key)
+        if not profile:
+            error (_("profile %s is unknown") % profile_key)
+            return
+        debug ('new player ready: %s' % profile)
+        mess = self.createGameElt(jid.JID(referee))
+        ready_elt = mess.firstChildElement().addElement('player_ready')
+        ready_elt['player'] = player
+        self.host.profiles[profile].xmlstream.send(mess)
+
+    def contratChoosed(self, player, referee, contrat, profile_key='@DEFAULT@'):
+        """Must be call by player when the contrat is selected
+        @param player: player's name
+        @param referee: arbiter jid
+        @contrat: contrat choosed (must be the exact same string than in the give list options)
+        @profile_key: profile
+        """
+        profile = self.host.memory.getProfileName(profile_key)
+        if not profile:
+            error (_("profile %s is unknown") % profile_key)
+            return
+        debug (_('contrat [%(contrat)s] choosed by %(profile)s') % {'contrat':contrat, 'profile':profile})
+        mess = self.createGameElt(jid.JID(referee))
+        contrat_elt = mess.firstChildElement().addElement(('','contrat_choosed'), content=contrat)
+        contrat_elt['player'] = player
+        self.host.profiles[profile].xmlstream.send(mess)
+
+    def play_cards(self, player, referee, cards, profile_key='@DEFAULT@'):
+        """Must be call by player when the contrat is selected
+        @param player: player's name
+        @param referee: arbiter jid
+        @cards: cards played (list of tuples)
+        @profile_key: profile
+        """
+        profile = self.host.memory.getProfileName(profile_key)
+        if not profile:
+            error (_("profile %s is unknown") % profile_key)
+            return
+        debug (_('Cards played by %(profile)s: [%(cards)s]') % {'profile':profile,'cards':cards})
+        mess = self.createGameElt(jid.JID(referee))
+        playcard_elt = mess.firstChildElement().addChild(self.__card_list_to_xml(TarotCard.from_tuples(cards), 'cards_played'))
+        playcard_elt['player'] = player
+        self.host.profiles[profile].xmlstream.send(mess)
+
+    def newGame(self, room_jid, profile):
+        """Launch a new round"""
+        debug (_('new Tarot game'))
+        deck = self.deck_ordered[:]
+        random.shuffle(deck)
+        game_data = self.games[room_jid.userhost()]
+        players = game_data['players']
+        players_data = game_data['players_data']
+        current_player = game_data['current_player']
+        game_data['stage'] = "init"
+        game_data['first_player'] = None #first player for the current trick
+        game_data['contrat'] = None
+        hand = game_data['hand'] = {}
+        hand_size = game_data['hand_size']
+        chien = game_data['chien'] = []
+        for i in range(4): #TODO: distribute according to real Tarot rules (3 by 3 counter-clockwise, 1 card at once to chien)
+            hand[players[i]] = deck[0:hand_size]
+            del deck[0:hand_size]
+        chien.extend(deck)
+        del(deck[:])
+
+        for player in players:
+            to_jid = jid.JID(room_jid.userhost()+"/"+player) #FIXME: gof:
+            mess = self.createGameElt(to_jid)
+            mess.firstChildElement().addChild(self.__card_list_to_xml(hand[player], 'hand'))
+            self.host.profiles[profile].xmlstream.send(mess)
+            players_data[player]['contrat'] = None
+            players_data[player]['levees'] = [] #cards won
+            players_data[player]['played'] = None #card on the table
+            players_data[player]['wait_for_low'] = None #Used when a player wait for a low card because of excuse
+
+        pl_idx = game_data['current_player'] = (game_data['init_player'] + 1) % len(players) #the player after the dealer start
+        player = players[pl_idx]
+        to_jid = jid.JID(room_jid.userhost()+"/"+player) #FIXME: gof:
+        mess = self.createGameElt(to_jid)
+        mess.firstChildElement().addChild(self.__ask_contrat())
+        self.host.profiles[profile].xmlstream.send(mess)
+            
+
+    def card_game_cmd(self, mess_elt, profile):
+        from_jid = jid.JID(mess_elt['from']) 
+        room_jid = jid.JID(from_jid.userhost())
+        game_elt = mess_elt.firstChildElement()
+        game_data = self.games[room_jid.userhost()]
+        players_data = game_data['players_data']
+        
+        for elt in game_elt.elements():
+            
+            if elt.name == 'started': #new game created
+                players = []
+                for player in elt.elements():
+                    players.append(unicode(player))
+                self.host.bridge.tarotGameStarted(room_jid.userhost(), from_jid.full(), players, profile)
+            
+            elif elt.name == 'player_ready': #ready to play
+                player = elt['player']
+                status = self.games[room_jid.userhost()]['status']
+                nb_players = len(self.games[room_jid.userhost()]['players'])
+                status[player] = 'ready'
+                debug (_('Player %(player)s is ready to start [status: %(status)s]') % {'player':player, 'status':status})
+                if status.values().count('ready') == nb_players: #everybody is ready, we can start the game
+                    self.newGame(room_jid, profile)
+            
+            elif elt.name == 'hand': #a new hand has been received
+                self.host.bridge.tarotGameNew(room_jid.userhost(), self.__xml_to_list(elt), profile)
+
+            elif elt.name == 'contrat': #it's time to choose contrat
+                form = data_form.Form.fromElement(elt.firstChildElement())
+                xml_data = dataForm2xml(form)
+                self.host.bridge.tarotGameChooseContrat(room_jid.userhost(), xml_data, profile)
+           
+            elif elt.name == 'contrat_choosed':
+                #TODO: check we receive the contrat from the right person
+                #TODO: use proper XEP-0004 way for answering form
+                player = elt['player']
+                players_data[player]['contrat'] = unicode(elt)
+                contrats = [players_data[player]['contrat'] for player in game_data['players']]
+                if contrats.count(None):
+                    #not everybody has choosed his contrat, it's next one turn
+                    player = self.__next_player(game_data)
+                    to_jid = jid.JID(room_jid.userhost()+"/"+player) #FIXME: gof:
+                    mess = self.createGameElt(to_jid)
+                    mess.firstChildElement().addChild(self.__ask_contrat())
+                    self.host.profiles[profile].xmlstream.send(mess)
+                else:
+                    #TODO: gof: manage "everybody pass" case
+                    best_contrat = [None, "Passe"]
+                    for player in game_data['players']:
+                        contrat = players_data[player]['contrat']
+                        idx_best = self.contrats.index(best_contrat[1])
+                        idx_pl = self.contrats.index(contrat)
+                        if idx_pl > idx_best:
+                            best_contrat[0] = player
+                            best_contrat[1] = contrat
+                    debug (_("%(player)s win the bid with %(contrat)s") % {'player':best_contrat[0],'contrat':best_contrat[1]})
+                    game_data['contrat'] = best_contrat[1]
+                    
+                    if game_data['contrat'] == "Garde Sans" or game_data['contrat'] == "Garde Contre":
+                        self.__start_play(room_jid, game_data, profile)
+                        game_data['attaquant'] = best_contrat[0]
+                    else:
+                        #Time to show the chien to everybody
+                        to_jid = jid.JID(room_jid.userhost()) #FIXME: gof:
+                        mess = self.createGameElt(to_jid)
+                        chien_elt = mess.firstChildElement().addChild(self.__card_list_to_xml(game_data['chien'], 'chien'))
+                        chien_elt['attaquant'] = best_contrat[0]
+                        self.host.profiles[profile].xmlstream.send(mess)
+                        #the attacker (attaquant) get the chien
+                        game_data['hand'][best_contrat[0]].extend(game_data['chien'])
+                        del game_data['chien'][:]
+                    
+                    if game_data['contrat'] == "Garde Sans":
+                        #The chien go into attaquant's (attacker) levees
+                        players_data[best_contrat[0]]['levees'].extend(game_data['chien'])
+                        del game_data['chien'][:]
+
+
+            elif elt.name == 'chien': #we have received the chien
+                debug (_("tarot: chien received"))
+                data = {"attaquant":elt['attaquant']}
+                game_data['stage'] = "ecart"
+                game_data['attaquant'] = elt['attaquant']
+                self.host.bridge.tarotGameShowCards(room_jid.userhost(), "chien", self.__xml_to_list(elt), data, profile)
+
+            elif elt.name == 'cards_played':
+                if game_data['stage'] == "ecart":
+                    #TODO: show atouts (trumps) if player put some in écart
+                    assert (game_data['attaquant'] == elt['player']) #TODO: throw an xml error here
+                    list_cards = TarotCard.from_tuples(self.__xml_to_list(elt))
+                    #we now check validity of card
+                    invalid_cards = self.__invalid_cards(game_data, list_cards)
+                    if invalid_cards:
+                        mess = self.createGameElt(jid.JID(room_jid.userhost()+'/'+elt['player']))
+                        mess.firstChildElement().addChild(self.__invalid_cards_elt(list_cards, invalid_cards, game_data['stage']))
+                        self.host.profiles[profile].xmlstream.send(mess)
+                        return
+
+                    #FIXME: gof: manage Garde Sans & Garde Contre cases
+                    players_data[elt['player']]['levees'].extend(list_cards) #we add the chien to attaquant's levées
+                    for card in list_cards:
+                        game_data['hand'][elt['player']].remove(card)
+                    
+                    self.__start_play(room_jid, game_data, profile)
+                    
+                elif game_data['stage'] == "play":
+                    current_player = game_data['players'][game_data['current_player']]
+                    cards = TarotCard.from_tuples(self.__xml_to_list(elt))
+                    
+                    if mess_elt['type'] == 'groupchat':
+                        self.host.bridge.tarotGameCardsPlayed(room_jid.userhost(), elt['player'], self.__xml_to_list(elt), profile)
+                    else:
+                        #we first check validity of card
+                        invalid_cards = self.__invalid_cards(game_data, cards)
+                        if invalid_cards:
+                            mess = self.createGameElt(jid.JID(room_jid.userhost()+'/'+current_player))
+                            mess.firstChildElement().addChild(self.__invalid_cards_elt(cards, invalid_cards, game_data['stage']))
+                            self.host.profiles[profile].xmlstream.send(mess)
+                            return
+                        #the card played is ok, we forward it to everybody
+                        #first we remove it from the hand and put in on the table
+                        game_data['hand'][current_player].remove(cards[0])
+                        players_data[current_player]['played'] = cards[0]
+
+                        #then we forward the message
+                        mess = self.createGameElt(room_jid)
+                        playcard_elt = mess.firstChildElement().addChild(elt)
+                        self.host.profiles[profile].xmlstream.send(mess)
+                    
+                        #Did everybody played ?
+                        played = [players_data[player]['played'] for player in game_data['players']]
+                        if all(played):
+                            #everybody has played
+                            winner = self.__winner(game_data)
+                            debug (_('The winner of this trick is %s') % winner)
+                            #the winner win the trick
+                            self.__excuse_hack(game_data, played, winner)
+                            players_data[elt['player']]['levees'].extend(played)
+                            #nothing left on the table
+                            for player in game_data['players']:
+                                players_data[player]['played'] = None
+                            if len(game_data['hand'][current_player]) == 0:
+                                #no card lef: the game is finished
+                                to_jid = jid.JID(room_jid.userhost()) #FIXME: gof:
+                                mess = self.createGameElt(to_jid)
+                                chien_elt = mess.firstChildElement().addChild(self.__give_scores(*self.__calculate_scores(game_data)))
+                                self.host.profiles[profile].xmlstream.send(mess)
+                                return
+                            #next player is the winner
+                            next_player = game_data['first_player'] = self.__next_player(game_data, winner)
+                        else:
+                            next_player = self.__next_player(game_data)
+
+                        #finally, we tell to the next player to play
+                        to_jid = jid.JID(room_jid.userhost()+"/"+next_player) #FIXME: gof:
+                        mess = self.createGameElt(to_jid)
+                        yourturn_elt = mess.firstChildElement().addElement('your_turn')
+                        self.host.profiles[profile].xmlstream.send(mess)
+
+            elif elt.name == 'your_turn':
+                self.host.bridge.tarotGameYourTurn(room_jid.userhost(), profile)
+
+            elif elt.name == 'score':
+                form_elt = elt.elements(name='x',uri='jabber:x:data').next()
+                winners = []
+                loosers = []
+                for winner in elt.elements(name='winner', uri=''):
+                    winners.append(unicode(winner))
+                for looser in elt.elements(name='looser', uri=''):
+                    loosers.append(unicode(looser))
+                form = data_form.Form.fromElement(form_elt)
+                xml_data = dataForm2xml(form)
+                self.host.bridge.tarotGameScore(room_jid.userhost(), xml_data, winners, loosers, profile)
+            elif elt.name == 'error':
+                if elt['type'] == 'invalid_cards':
+                    played_cards = self.__xml_to_list(elt.elements(name='played',uri='').next())
+                    invalid_cards = self.__xml_to_list(elt.elements(name='invalid',uri='').next())
+                    self.host.bridge.tarotGameInvalidCards(room_jid.userhost(), elt['phase'], played_cards, invalid_cards, profile)
+                else:
+                    error (_('Unmanaged error type: %s') % elt['type'])
+            else:
+                error (_('Unmanaged card game element: %s') % elt.name)
+                
+    def getHandler(self, profile):
+            return CardGameHandler(self)
+
+class CardGameHandler (XMPPHandler):
+    implements(iwokkel.IDisco)
+   
+    def __init__(self, plugin_parent):
+        self.plugin_parent = plugin_parent
+        self.host = plugin_parent.host
+
+    def connectionInitialized(self):
+        self.xmlstream.addObserver(CG_REQUEST, self.plugin_parent.card_game_cmd, profile = self.parent.profile)
+
+    def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
+        return [disco.DiscoFeature(NS_CG)]
+
+    def getDiscoItems(self, requestor, target, nodeIdentifier=''):
+        return []
+