Collaboration: allow multiple users in the same XO

This is a workaround to the problem with the real nick on a jabber server[1].
Now, we are using the unique identifier (mesh.my_handle or event.handle) for
each player in the game plus a "-%d" at the end of the uid. This value
(Player.uid) is added only when the Activity is shared otherwise this
field is None.

This new workaround allow to distinguish between many users (up to 3) for each
XO laptop -using the gamepad keys.

[1] http://dev.laptop.org/ticket/10750

Signed-off-by: Manuel Kaufmann <humitos@gmail.com>
Signed-off-by: Rafael Ortiz <rafael@activitycentral.com>

1 files changed, 20 insertions, 7 deletions

diff --git a/game.py b/game.py
index b6319b1..85f6d7f 100644
--- a/game.py
+++ b/game.py
@@ -33,7 +33,9 @@ import pygame
 import olpcgames
 
 import logging
+logging.basicConfig()
 log = logging.getLogger('Maze')
+log.setLevel(logging.DEBUG)
 
 import olpcgames.pausescreen as pausescreen
 import olpcgames.mesh as mesh
@@ -195,7 +197,7 @@ class MazeGame:
 
                 if len(self.remoteplayers) > 0:
                     mesh.broadcast("move:%s,%d,%d,%d,%d" % \
-                                   (player.nick,
+                                   (player.uid,
                                     player.position[0],
                                     player.position[1],
                                     player.direction[0],
@@ -245,6 +247,7 @@ class MazeGame:
 
         elif event.type == mesh.CONNECT:
             log.debug("Connected to the mesh")
+
         elif event.type == mesh.PARTICIPANT_ADD:
             log.debug('mesh.PARTICIPANT_ADD')
 
@@ -252,10 +255,19 @@ class MazeGame:
                 if event.handle == mesh.my_handle():
                     log.debug("Me: %s - %s", buddy.props.nick,
                                   buddy.props.color)
+                    # README: this is a workaround to use an unique
+                    # identifier instead the nick of the buddy
+                    # http://dev.laptop.org/ticket/10750
+                    count = ''
+                    for i, player in enumerate(self.localplayers):
+                        if i > 0:
+                            count = '-%d' % i
+                        player.uid = mesh.my_handle() + count
                 else:
                     log.debug("Join: %s - %s", buddy.props.nick,
                                   buddy.props.color)
                     player = Player(buddy)
+                    player.uid = event.handle
                     self.remoteplayers[event.handle] = player
                     self.allplayers.append(player)
                     self.allplayers.extend(player.bonusPlayers())
@@ -269,8 +281,9 @@ class MazeGame:
                                   self.maze.width, self.maze.height))
                     for player in self.localplayers:
                         if not player.hidden:
-                            mesh.send_to(event.handle, "move:%s,%d,%d,%d,%d" % \
-                                         (player.nick,
+                            mesh.send_to(event.handle,
+                                         "move:%s,%d,%d,%d,%d" % \
+                                         (player.uid,
                                           player.position[0],
                                           player.position[1],
                                           player.direction[0],
@@ -367,7 +380,7 @@ class MazeGame:
             return
         if message.startswith("move:"):
             # a player has moved
-            nick, x, y, dx, dy = message[5:].split(",")[:5]
+            uid, x, y, dx, dy = message[5:].split(",")[:5]
 
             # README: this function (player.bonusPlayer) sometimes
             # returns None and the activity doesn't move the players.
@@ -377,7 +390,7 @@ class MazeGame:
             # So, we have set remote users with this kind of name but
             # we receive the reald child's name in the mesh message
 
-            # player = player.bonusPlayer(nick)
+            player = player.bonusPlayer(uid)
             player.hidden = False
 
             self.markPointDirty(player.position)
@@ -400,8 +413,8 @@ class MazeGame:
                 self.reset()
         elif message.startswith("finish:"):
             # someone finished the maze
-            nick, elapsed = message[7:].split(",")[:2]
-            player = player.bonusPlayer(nick)
+            uid, elapsed = message[7:].split(",")[:2]
+            player = player.bonusPlayer(uid)
             player.elapsed = float(elapsed)
             self.markPointDirty(player.position)
         else: