Add a demo walk-through to the coder guide

[mudpy.git] / mudpy / command.py

diff --git a/mudpy/command.py b/mudpy/command.py
index 2b20b1a..0ffff97 100644 (file)
--- a/mudpy/command.py
+++ b/mudpy/command.py
@@ -6,6 +6,7 @@
 
 import random
 import re
+import traceback
 import unicodedata
 
 import mudpy
@@ -117,8 +118,13 @@ def error(actor, input_data):
     else:
         message = "Arglebargle, glop-glyf!?!"
 
-    # send the error message
-    actor.send(message)
+    # try to send the error message, and log if we can't
+    try:
+        actor.send(message)
+    except Exception:
+        mudpy.misc.log(
+            'Sending a command error to user %s raised exception...\n%s' % (
+                actor.owner.account.get("name"), traceback.format_exc()))
 
 
 def halt(actor, parameters):
@@ -257,10 +263,12 @@ def look(actor, parameters):
 
 def move(actor, parameters):
     """Move the avatar in a given direction."""
-    if parameters in actor.universe.contents[actor.get("location")].portals():
-        actor.move_direction(parameters)
-    else:
-        actor.send("You cannot go that way.")
+    for portal in sorted(
+            actor.universe.contents[actor.get("location")].portals()):
+        if portal.startswith(parameters):
+            actor.move_direction(portal)
+            return(portal)
+    actor.send("You cannot go that way.")
 
 
 def preferences(actor, parameters):
@@ -272,22 +280,31 @@ def preferences(actor, parameters):
     message = ""
     arguments = parameters.split()
     allowed_prefs = set()
+    base_prefs = []
     user_config = actor.universe.contents.get("mudpy.user")
     if user_config:
-        allowed_prefs.update(user_config.get("pref_allow", []))
+        base_prefs = user_config.get("pref_allow", [])
+        allowed_prefs.update(base_prefs)
         if actor.owner.account.get("administrator"):
             allowed_prefs.update(user_config.get("pref_admin", []))
     if not arguments:
         message += "These are your current preferences:"
-        for pref in allowed_prefs:
-            message += ("$(eol)   $(red)%s $(grn)%s$(nrm)"
-                        % (pref, actor.owner.account.get(pref)))
+
+        # color-code base and admin prefs
+        for pref in sorted(allowed_prefs):
+            if pref in base_prefs:
+                color = "grn"
+            else:
+                color = "red"
+            message += ("$(eol)   $(%s)%s$(nrm) - %s" % (
+                color, pref, actor.owner.account.get(pref, "<not set>")))
+
     elif arguments[0] not in allowed_prefs:
         message += (
             'Preference "%s" does not exist. Try the `preferences` command by '
             "itself for a list of valid preferences." % arguments[0])
     elif len(arguments) == 1:
-        message += "%s" % actor.owner.account.get(arguments[0])
+        message += "%s" % actor.owner.account.get(arguments[0], "<not set>")
     else:
         pref = arguments[0]
         value = " ".join(arguments[1:])