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+# Maze.activity
+# A simple multi-player maze game for the XO laptop.
+# http://wiki.laptop.org/go/Maze
+#
+# Special thanks to Brendan Donohoe for the icon.
+#
+# Copyright (C) 2007  Joshua Minor
+# This file is part of Maze.activity
+# 
+#     Maze.activity 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.
+# 
+#     Maze.activity 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 Maze.activity.  If not, see <http://www.gnu.org/licenses/>.
+
+from olpcgames.util import get_bundle_path
+bundlepath = get_bundle_path()
+from sugar.graphics.icon import Icon
+from sugar.graphics.xocolor import XoColor
+import pygame
+import re
+import os
+
+
+class Player:
+    def __init__(self, buddy, shape='circle'):
+        self.buddy = buddy
+        self.nick = buddy.props.nick
+        colors = buddy.props.color.split(",")
+        
+        def string2Color(str):
+            return (int(str[1:3], 16), int(str[3:5], 16), int(str[5:7], 16))
+        self.colors = map(string2Color, colors)
+        self.shape = shape
+        self.hidden = False
+        self.bonusplayers = None
+        self.reset()
+
+    def draw(self, screen, bounds, size):
+        rect = pygame.Rect(bounds.x + self.position[0] * size, bounds.y + self.position[1] * size, size, size)
+        border = size / 10.
+        center = rect.inflate(-border * 2, - border * 2)
+        fg, bg = self.colors
+        if self.shape == 'circle':
+            pygame.draw.ellipse(screen, fg, rect, 0)
+            pygame.draw.ellipse(screen, bg, center, 0)
+        elif self.shape == 'square':
+            pygame.draw.rect(screen, fg, rect, 0)
+            pygame.draw.rect(screen, bg, center, 0)
+        elif self.shape == 'triangle':
+            rect = rect.inflate(-1, -1)
+            pts = [rect.bottomleft, rect.midtop, rect.bottomright]
+            pygame.draw.polygon(screen, fg, pts, 0)
+            pts = [(pts[0][0] + border * 1.394, pts[0][1] - border),
+                   (pts[1][0],              pts[1][1] + border * 2.236),
+                   (pts[2][0] - border * 1.394, pts[2][1] - border)]
+            pygame.draw.polygon(screen, bg, pts, 0)
+
+    def reset(self):
+        self.direction = (0, 0)
+        self.position = (1, 1)
+        self.previous = (1, 1)
+        self.elapsed = None
+    
+    def animate(self, maze):
+        # if the player finished the maze, then don't move
+        if maze.map[self.position[0]][self.position[1]] == maze.GOAL:
+            self.direction = (0, 0)
+        if self.direction == (0, 0):
+            return self.position
+        if self.canGo(self.direction, maze):
+            self.move(self.direction, maze)
+            self.keepGoing(self.direction, maze)
+        else:
+            self.direction = (0, 0)
+        return self.position
+    
+    def move(self, direction, maze):
+        """Move the player in a given direction (deltax,deltay)"""
+        newposition = (self.position[0] + direction[0], self.position[1] + direction[1])
+        self.previous = self.position
+        self.position = newposition
+
+    def canGo(self, direction, maze):
+        """Can the player go in this direction without bumping into somethi ng?"""
+        newposition = (self.position[0] + direction[0], self.position[1] + direction[1])
+        return maze.validMove(newposition[0], newposition[1])
+
+    def cameFrom(self, direction):
+        """Note the position/direction that we just came from."""
+        return self.previous == (self.position[0] + direction[0], self.position[1] + direction[1])
+
+    def keepGoing(self, curdir, maze):
+        """Try to keep going if the direction is obvious.
+        This prevents the player from having to use the arrows to navigate
+        every single twist and turn of large mazes."""
+        # possible directions are fwd, turn left, turn right
+        directions = [curdir, (curdir[1], curdir[0]), (- curdir[1], - curdir[0])]
+        # remove any that are blocked
+        for d in list(directions):
+            if not self.canGo(d, maze):
+                directions.remove(d)
+        # is there only one possible direction?
+        if len(directions) == 1:
+       	    self.direction = directions[0]
+        else:
+            self.direction = (0, 0)
+
+    def bonusPlayers(self):
+        if self.bonusplayers is None:
+            self.bonusplayers = []
+            self.bonusplayers.append(Player(self.buddy, 'square'))
+            self.bonusplayers.append(Player(self.buddy, 'triangle'))
+
+            count = 2
+            for player in self.bonusplayers:
+                player.nick = self.nick + "-%d" % count
+                player.hidden = True
+                count += 1
+
+        return self.bonusplayers
+
+    def bonusPlayer(self, nick):
+        if nick == self.nick:
+            return self
+        for bonusplayer in self.bonusPlayers():
+            if bonusplayer.nick == nick:
+                return bonusplayer