--- a/src/tools/plugins/games.py	Sun Nov 17 16:23:29 2013 +0100
+++ b/src/tools/plugins/games.py	Sun Nov 17 16:30:46 2013 +0100
@@ -30,7 +30,8 @@
     def __init__(self, host, plugin_info, ns_tag, player_init_data={}, options={}):
         """
         @param host
-        @param name: the name of this name
+        @param plugin_info: PLUGIN_INFO map of the game plugin
+        @ns_tag: couple (nameservice, tag) to construct the messages
         @param player_init_data: dictionary for initialization data, applicable to each player
         @param options: dictionary for game options
         """
@@ -38,14 +39,11 @@
         self.name = plugin_info["import_name"]
         self.ns_tag = ns_tag
         self.player_init_data = player_init_data
-        self.collectiveGame = self.player_init_data is {}
+        self.collectiveGame = self.player_init_data == {}
         self.options = options
         self.games = {}
         self.waiting_inv = {}  # Invitation waiting for people to join to launch a game
 
-        # args: room_jid, referee, players, profile
-        host.bridge.addSignal("%sGo" % self.name, ".plugin", signature='ssass')
-
     def prepareRoom(self, other_players, profile_key='@NONE@'):
         """Prepare the room for a game: create it and invite players.
         @param other_players: list for other players JID userhosts
@@ -62,9 +60,10 @@
         players.append(_jid.userhost())
 
         def roomJoined(room):
+            """@param room: instance of wokkel.muc.Room"""
             _room = room.occupantJID.userhostJID()
             if self.collectiveGame is True or other_players == [] and _jid in [user.entity for user in room.roster.values()]:
-                self.createGame(_room.userhost(), None if self.collectiveGame is True else players, profile_key=profile)
+                self.createGame(_room.userhost(), [] if self.collectiveGame is True else players, profile_key=profile)
             else:
                 self.waiting_inv[_room] = (time(), players)  # TODO: remove invitation waiting for too long, using the time data
             for player in other_players:
@@ -103,9 +102,10 @@
         """
         _room_jid = room.occupantJID.userhostJID()
         if self.collectiveGame is True:
-            if _room_jid in self.games and self.games[_room_jid]["referee"] == room.occupantJID.full():
+            room_s = _room_jid.userhost()
+            if room_s in self.games and self.games[room_s]["referee"] == room.occupantJID.full():
                 #we are in a radiocol room, let's start the party !
-                mess = self.createGameElt(JID(_room_jid + '/' + user.nick))
+                mess = self.createGameElt(JID(room_s + '/' + user.nick))
                 mess.firstChildElement().addChild(self.__create_started_elt())
                 self.host.profiles[profile].xmlstream.send(mess)
             return True
@@ -131,7 +131,7 @@
             self.createGame(_room_jid.userhost(), players, profile_key=profile)
         return True
 
-    def createGame(self, room_jid, players=None, profile_key='@NONE@'):
+    def createGame(self, room_jid, players=[], profile_key='@NONE@'):
         """Create a new game
         @param room_jid: jid of the room
         @param players: list of players nick (nick must exist in the room)
@@ -142,14 +142,14 @@
         if not profile:
             error(_("profile %s is unknown") % profile_key)
             return
-        if room in self.games:
-            warning(_("%s game already started in room %s") % (self.name, room))
-            return
         room_nick = self.host.plugins["XEP-0045"].getRoomNick(room, profile)
         if not room_nick:
             error('Internal error')
             return
         referee = room + '/' + room_nick
+        if room in self.games:
+            warning(_("%s game already started in room %s") % (self.name, room))
+            return
         self.games[room] = {'referee': referee}
         self.games[room].update(self.options)
         if self.collectiveGame is True:
@@ -172,7 +172,7 @@
         self.games[room].update({'players': players, 'status': status, 'players_data': players_data})
 
     def createCollectiveGame(self, room_jid, profile_key='@NONE@'):
-        return self.createGame(self, room_jid, players=None, profile_key=profile_key)
+        return self.createGame(self, room_jid, players=[], profile_key=profile_key)
 
     def playerReady(self, player, referee, profile_key='@NONE@'):
         """Must be called when player is ready to start a new game"""