From ead0301daaa6f07d9fc740050019bf204543f0ea Mon Sep 17 00:00:00 2001
From: Thomas Kluyver <takowl@gmail.com>
Date: Thu, 10 Jan 2013 16:45:18 +0000
Subject: Allow custom message when player attempts to move to nonexistent
 tile.

Closes gh-7
---
 doc/interface.rst   | 6 ++++++
 weatbag/__init__.py | 7 ++++---
 weatbag/tiles/n3.py | 8 ++------
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/doc/interface.rst b/doc/interface.rst
index 796fa4b..dd960b4 100644
--- a/doc/interface.rst
+++ b/doc/interface.rst
@@ -52,3 +52,9 @@ Your module should define a class called ``Tile``, with the following interface:
       :param player: the active :class:`~weatbag.Player` instance
       :param direction: the direction the player is trying to leave, as a single
                         lowercase character, n/e/s/w
+
+   .. attribute:: no_path_msg
+   
+      *Optional.* The message to display if the player attempts to leave in a
+      direction where there is no tile. The default message says "The undergrowth
+      in that direction is impassable. You turn back."
diff --git a/weatbag/__init__.py b/weatbag/__init__.py
index 9a743e0..511e8bc 100644
--- a/weatbag/__init__.py
+++ b/weatbag/__init__.py
@@ -101,7 +101,9 @@ def main():
     name = input("What is your name? ")
     player = Player(name)
     interact(player)
-    
+
+no_path_msg = "The undergrowth in that direction is impassable. You turn back."
+
 def interact(player):
     world = World()
     tile = world[player.position]
@@ -120,8 +122,7 @@ def interact(player):
             try:
                 tile = world[new_posn]
             except KeyError:
-                print("The undergrowth in that direction is impassable. "
-                      "You turn back.")
+                print(getattr(tile, 'no_path_msg', no_path_msg))
             else:
                 player.position = new_posn
                 tile.describe()
diff --git a/weatbag/tiles/n3.py b/weatbag/tiles/n3.py
index 7591110..125898b 100644
--- a/weatbag/tiles/n3.py
+++ b/weatbag/tiles/n3.py
@@ -51,13 +51,9 @@ class Tile:
                 print("You manage to flee!")
                 return True
 
-        if direction=='s':
-            return True
-        if direction=='n':
-            return True
+        return True
 
-        print("There is no path leading in that direction.")
-        return False
+    no_path_msg = "There is no path leading in that direction."
     
     def action(self, player, do):
         if do[0] == "flee":
-- 
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