494 lines
18 KiB
Python
494 lines
18 KiB
Python
"""
|
|
Extended Room
|
|
|
|
Evennia Contribution - Griatch 2012
|
|
|
|
This is an extended Room typeclass for Evennia. It is supported
|
|
by an extended `Look` command and an extended `desc` command, also
|
|
in this module.
|
|
|
|
|
|
Features:
|
|
|
|
1) Time-changing description slots
|
|
|
|
This allows to change the full description text the room shows
|
|
depending on larger time variations. Four seasons (spring, summer,
|
|
autumn and winter) are used by default. The season is calculated
|
|
on-demand (no Script or timer needed) and updates the full text block.
|
|
|
|
There is also a general description which is used as fallback if
|
|
one or more of the seasonal descriptions are not set when their
|
|
time comes.
|
|
|
|
An updated `desc` command allows for setting seasonal descriptions.
|
|
|
|
The room uses the `evennia.utils.gametime.GameTime` global script. This is
|
|
started by default, but if you have deactivated it, you need to
|
|
supply your own time keeping mechanism.
|
|
|
|
|
|
2) In-description changing tags
|
|
|
|
Within each seasonal (or general) description text, you can also embed
|
|
time-of-day dependent sections. Text inside such a tag will only show
|
|
during that particular time of day. The tags looks like `<timeslot> ...
|
|
</timeslot>`. By default there are four timeslots per day - morning,
|
|
afternoon, evening and night.
|
|
|
|
|
|
3) Details
|
|
|
|
The Extended Room can be "detailed" with special keywords. This makes
|
|
use of a special `Look` command. Details are "virtual" targets to look
|
|
at, without there having to be a database object created for it. The
|
|
Details are simply stored in a dictionary on the room and if the look
|
|
command cannot find an object match for a `look <target>` command it
|
|
will also look through the available details at the current location
|
|
if applicable. An extended `desc` command is used to set details.
|
|
|
|
|
|
4) Extra commands
|
|
|
|
CmdExtendedLook - look command supporting room details
|
|
CmdExtendedDesc - desc command allowing to add seasonal descs and details,
|
|
as well as listing them
|
|
CmdGameTime - A simple `time` command, displaying the current
|
|
time and season.
|
|
|
|
|
|
Installation/testing:
|
|
|
|
1) Add `CmdExtendedLook`, `CmdExtendedDesc` and `CmdGameTime` to the default `cmdset`
|
|
(see Wiki for how to do this).
|
|
2) `@dig` a room of type `contrib.extended_room.ExtendedRoom` (or make it the
|
|
default room type)
|
|
3) Use `desc` and `detail` to customize the room, then play around!
|
|
|
|
"""
|
|
from __future__ import division
|
|
|
|
import datetime
|
|
import re
|
|
from django.conf import settings
|
|
from evennia import DefaultRoom
|
|
from evennia import gametime
|
|
from evennia import default_cmds
|
|
from evennia import utils
|
|
|
|
# error return function, needed by Extended Look command
|
|
_AT_SEARCH_RESULT = utils.variable_from_module(*settings.SEARCH_AT_RESULT.rsplit('.', 1))
|
|
|
|
# regexes for in-desc replacements
|
|
RE_MORNING = re.compile(r"<morning>(.*?)</morning>", re.IGNORECASE)
|
|
RE_AFTERNOON = re.compile(r"<afternoon>(.*?)</afternoon>", re.IGNORECASE)
|
|
RE_EVENING = re.compile(r"<evening>(.*?)</evening>", re.IGNORECASE)
|
|
RE_NIGHT = re.compile(r"<night>(.*?)</night>", re.IGNORECASE)
|
|
# this map is just a faster way to select the right regexes (the first
|
|
# regex in each tuple will be parsed, the following will always be weeded out)
|
|
REGEXMAP = {"morning": (RE_MORNING, RE_AFTERNOON, RE_EVENING, RE_NIGHT),
|
|
"afternoon": (RE_AFTERNOON, RE_MORNING, RE_EVENING, RE_NIGHT),
|
|
"evening": (RE_EVENING, RE_MORNING, RE_AFTERNOON, RE_NIGHT),
|
|
"night": (RE_NIGHT, RE_MORNING, RE_AFTERNOON, RE_EVENING)}
|
|
|
|
# set up the seasons and time slots. This assumes gametime started at the
|
|
# beginning of the year (so month 1 is equivalent to January), and that
|
|
# one CAN divide the game's year into four seasons in the first place ...
|
|
MONTHS_PER_YEAR = 12
|
|
SEASONAL_BOUNDARIES = (3 / 12.0, 6 / 12.0, 9 / 12.0)
|
|
HOURS_PER_DAY = 24
|
|
DAY_BOUNDARIES = (0, 6 / 24.0, 12 / 24.0, 18 / 24.0)
|
|
|
|
|
|
# implements the Extended Room
|
|
|
|
class ExtendedRoom(DefaultRoom):
|
|
"""
|
|
This room implements a more advanced `look` functionality depending on
|
|
time. It also allows for "details", together with a slightly modified
|
|
look command.
|
|
"""
|
|
|
|
def at_object_creation(self):
|
|
"""Called when room is first created only."""
|
|
self.db.spring_desc = ""
|
|
self.db.summer_desc = ""
|
|
self.db.autumn_desc = ""
|
|
self.db.winter_desc = ""
|
|
# the general desc is used as a fallback if a seasonal one is not set
|
|
self.db.general_desc = ""
|
|
# will be set dynamically. Can contain raw timeslot codes
|
|
self.db.raw_desc = ""
|
|
# this will be set dynamically at first look. Parsed for timeslot codes
|
|
self.db.desc = ""
|
|
# these will be filled later
|
|
self.ndb.last_season = None
|
|
self.ndb.last_timeslot = None
|
|
# detail storage
|
|
self.db.details = {}
|
|
|
|
def get_time_and_season(self):
|
|
"""
|
|
Calculate the current time and season ids.
|
|
"""
|
|
# get the current time as parts of year and parts of day.
|
|
# we assume a standard calendar here and use 24h format.
|
|
timestamp = gametime.gametime(absolute=True)
|
|
# note that fromtimestamp includes the effects of server time zone!
|
|
datestamp = datetime.datetime.fromtimestamp(timestamp)
|
|
season = float(datestamp.month) / MONTHS_PER_YEAR
|
|
timeslot = float(datestamp.hour) / HOURS_PER_DAY
|
|
|
|
# figure out which slots these represent
|
|
if SEASONAL_BOUNDARIES[0] <= season < SEASONAL_BOUNDARIES[1]:
|
|
curr_season = "spring"
|
|
elif SEASONAL_BOUNDARIES[1] <= season < SEASONAL_BOUNDARIES[2]:
|
|
curr_season = "summer"
|
|
elif SEASONAL_BOUNDARIES[2] <= season < 1.0 + SEASONAL_BOUNDARIES[0]:
|
|
curr_season = "autumn"
|
|
else:
|
|
curr_season = "winter"
|
|
|
|
if DAY_BOUNDARIES[0] <= timeslot < DAY_BOUNDARIES[1]:
|
|
curr_timeslot = "night"
|
|
elif DAY_BOUNDARIES[1] <= timeslot < DAY_BOUNDARIES[2]:
|
|
curr_timeslot = "morning"
|
|
elif DAY_BOUNDARIES[2] <= timeslot < DAY_BOUNDARIES[3]:
|
|
curr_timeslot = "afternoon"
|
|
else:
|
|
curr_timeslot = "evening"
|
|
|
|
return curr_season, curr_timeslot
|
|
|
|
def replace_timeslots(self, raw_desc, curr_time):
|
|
"""
|
|
Filter so that only time markers `<timeslot>...</timeslot>` of
|
|
the correct timeslot remains in the description.
|
|
|
|
Args:
|
|
raw_desc (str): The unmodified description.
|
|
curr_time (str): A timeslot identifier.
|
|
|
|
Returns:
|
|
description (str): A possibly moified description.
|
|
|
|
"""
|
|
if raw_desc:
|
|
regextuple = REGEXMAP[curr_time]
|
|
raw_desc = regextuple[0].sub(r"\1", raw_desc)
|
|
raw_desc = regextuple[1].sub("", raw_desc)
|
|
raw_desc = regextuple[2].sub("", raw_desc)
|
|
return regextuple[3].sub("", raw_desc)
|
|
return raw_desc
|
|
|
|
def return_detail(self, key):
|
|
"""
|
|
This will attempt to match a "detail" to look for in the room.
|
|
|
|
Args:
|
|
key (str): A detail identifier.
|
|
|
|
Returns:
|
|
detail (str or None): A detail matching the given key.
|
|
|
|
Notes:
|
|
A detail is a way to offer more things to look at in a room
|
|
without having to add new objects. For this to work, we
|
|
require a custom `look` command that allows for `look
|
|
<detail>` - the look command should defer to this method on
|
|
the current location (if it exists) before giving up on
|
|
finding the target.
|
|
|
|
Details are not season-sensitive, but are parsed for timeslot
|
|
markers.
|
|
"""
|
|
try:
|
|
detail = self.db.details.get(key.lower(), None)
|
|
except AttributeError:
|
|
# this happens if no attribute details is set at all
|
|
return None
|
|
if detail:
|
|
season, timeslot = self.get_time_and_season()
|
|
detail = self.replace_timeslots(detail, timeslot)
|
|
return detail
|
|
return None
|
|
|
|
def return_appearance(self, looker, **kwargs):
|
|
"""
|
|
This is called when e.g. the look command wants to retrieve
|
|
the description of this object.
|
|
|
|
Args:
|
|
looker (Object): The object looking at us.
|
|
**kwargs (dict): Arbitrary, optional arguments for users
|
|
overriding the call (unused by default).
|
|
|
|
Returns:
|
|
description (str): Our description.
|
|
|
|
"""
|
|
# ensures that our description is current based on time/season
|
|
self.update_current_description()
|
|
# run the normal return_appearance method, now that desc is updated.
|
|
return super(ExtendedRoom, self).return_appearance(looker, **kwargs)
|
|
|
|
def update_current_description(self):
|
|
"""
|
|
This will update the description of the room if the time or season
|
|
has changed since last checked.
|
|
"""
|
|
update = False
|
|
# get current time and season
|
|
curr_season, curr_timeslot = self.get_time_and_season()
|
|
# compare with previously stored slots
|
|
last_season = self.ndb.last_season
|
|
last_timeslot = self.ndb.last_timeslot
|
|
if curr_season != last_season:
|
|
# season changed. Load new desc, or a fallback.
|
|
new_raw_desc = self.attributes.get("%s_desc" % curr_season)
|
|
if new_raw_desc:
|
|
raw_desc = new_raw_desc
|
|
else:
|
|
# no seasonal desc set. Use fallback
|
|
raw_desc = self.db.general_desc or self.db.desc
|
|
self.db.raw_desc = raw_desc
|
|
self.ndb.last_season = curr_season
|
|
update = True
|
|
if curr_timeslot != last_timeslot:
|
|
# timeslot changed. Set update flag.
|
|
self.ndb.last_timeslot = curr_timeslot
|
|
update = True
|
|
if update:
|
|
# if anything changed we have to re-parse
|
|
# the raw_desc for time markers
|
|
# and re-save the description again.
|
|
self.db.desc = self.replace_timeslots(self.db.raw_desc, curr_timeslot)
|
|
|
|
|
|
# Custom Look command supporting Room details. Add this to
|
|
# the Default cmdset to use.
|
|
|
|
class CmdExtendedLook(default_cmds.CmdLook):
|
|
"""
|
|
look
|
|
|
|
Usage:
|
|
look
|
|
look <obj>
|
|
look <room detail>
|
|
look *<account>
|
|
|
|
Observes your location, details at your location or objects in your vicinity.
|
|
"""
|
|
|
|
def func(self):
|
|
"""
|
|
Handle the looking - add fallback to details.
|
|
"""
|
|
caller = self.caller
|
|
args = self.args
|
|
if args:
|
|
looking_at_obj = caller.search(args,
|
|
candidates=caller.location.contents + caller.contents,
|
|
use_nicks=True,
|
|
quiet=True)
|
|
if not looking_at_obj:
|
|
# no object found. Check if there is a matching
|
|
# detail at location.
|
|
location = caller.location
|
|
if location and hasattr(location, "return_detail") and callable(location.return_detail):
|
|
detail = location.return_detail(args)
|
|
if detail:
|
|
# we found a detail instead. Show that.
|
|
caller.msg(detail)
|
|
return
|
|
# no detail found. Trigger delayed error messages
|
|
_AT_SEARCH_RESULT(looking_at_obj, caller, args, quiet=False)
|
|
return
|
|
else:
|
|
# we need to extract the match manually.
|
|
looking_at_obj = utils.make_iter(looking_at_obj)[0]
|
|
else:
|
|
looking_at_obj = caller.location
|
|
if not looking_at_obj:
|
|
caller.msg("You have no location to look at!")
|
|
return
|
|
|
|
if not hasattr(looking_at_obj, 'return_appearance'):
|
|
# this is likely due to us having an account instead
|
|
looking_at_obj = looking_at_obj.character
|
|
if not looking_at_obj.access(caller, "view"):
|
|
caller.msg("Could not find '%s'." % args)
|
|
return
|
|
# get object's appearance
|
|
caller.msg(looking_at_obj.return_appearance(caller))
|
|
# the object's at_desc() method.
|
|
looking_at_obj.at_desc(looker=caller)
|
|
|
|
|
|
# Custom build commands for setting seasonal descriptions
|
|
# and detailing extended rooms.
|
|
|
|
class CmdExtendedDesc(default_cmds.CmdDesc):
|
|
"""
|
|
`desc` - describe an object or room.
|
|
|
|
Usage:
|
|
desc[/switch] [<obj> =] <description>
|
|
detail[/del] [<key> = <description>]
|
|
|
|
|
|
Switches for `desc`:
|
|
spring - set description for <season> in current room.
|
|
summer
|
|
autumn
|
|
winter
|
|
|
|
Switch for `detail`:
|
|
del - delete a named detail.
|
|
|
|
Sets the "desc" attribute on an object. If an object is not given,
|
|
describe the current room.
|
|
|
|
The alias `detail` allows to assign a "detail" (a non-object
|
|
target for the `look` command) to the current room (only).
|
|
|
|
You can also embed special time markers in your room description, like this:
|
|
|
|
```
|
|
<night>In the darkness, the forest looks foreboding.</night>.
|
|
```
|
|
|
|
Text marked this way will only display when the server is truly at the given
|
|
timeslot. The available times are night, morning, afternoon and evening.
|
|
|
|
Note that `detail`, seasons and time-of-day slots only work on rooms in this
|
|
version of the `desc` command.
|
|
|
|
"""
|
|
aliases = ["describe", "detail"]
|
|
switch_options = () # Inherits from default_cmds.CmdDesc, but unused here
|
|
|
|
def reset_times(self, obj):
|
|
"""By deleteting the caches we force a re-load."""
|
|
obj.ndb.last_season = None
|
|
obj.ndb.last_timeslot = None
|
|
|
|
def func(self):
|
|
"""Define extended command"""
|
|
caller = self.caller
|
|
location = caller.location
|
|
if self.cmdname == 'detail':
|
|
# switch to detailing mode. This operates only on current location
|
|
if not location:
|
|
caller.msg("No location to detail!")
|
|
return
|
|
if location.db.details is None:
|
|
caller.msg("|rThis location does not support details.|n")
|
|
return
|
|
if self.switches and self.switches[0] in 'del':
|
|
# removing a detail.
|
|
if self.lhs in location.db.details:
|
|
del location.db.details[self.lhs]
|
|
caller.msg("Detail %s deleted, if it existed." % self.lhs)
|
|
self.reset_times(location)
|
|
return
|
|
if not self.args:
|
|
# No args given. Return all details on location
|
|
string = "|wDetails on %s|n:" % location
|
|
details = "\n".join(" |w%s|n: %s"
|
|
% (key, utils.crop(text)) for key, text in location.db.details.items())
|
|
caller.msg("%s\n%s" % (string, details) if details else "%s None." % string)
|
|
return
|
|
if not self.rhs:
|
|
# no '=' used - list content of given detail
|
|
if self.args in location.db.details:
|
|
string = "|wDetail '%s' on %s:\n|n" % (self.args, location)
|
|
string += str(location.db.details[self.args])
|
|
caller.msg(string)
|
|
else:
|
|
caller.msg("Detail '%s' not found." % self.args)
|
|
return
|
|
# setting a detail
|
|
location.db.details[self.lhs] = self.rhs
|
|
caller.msg("Set Detail %s to '%s'." % (self.lhs, self.rhs))
|
|
self.reset_times(location)
|
|
return
|
|
else:
|
|
# we are doing a desc call
|
|
if not self.args:
|
|
if location:
|
|
string = "|wDescriptions on %s|n:\n" % location.key
|
|
string += " |wspring:|n %s\n" % location.db.spring_desc
|
|
string += " |wsummer:|n %s\n" % location.db.summer_desc
|
|
string += " |wautumn:|n %s\n" % location.db.autumn_desc
|
|
string += " |wwinter:|n %s\n" % location.db.winter_desc
|
|
string += " |wgeneral:|n %s" % location.db.general_desc
|
|
caller.msg(string)
|
|
return
|
|
if self.switches and self.switches[0] in ("spring", "summer", "autumn", "winter"):
|
|
# a seasonal switch was given
|
|
if self.rhs:
|
|
caller.msg("Seasonal descs only work with rooms, not objects.")
|
|
return
|
|
switch = self.switches[0]
|
|
if not location:
|
|
caller.msg("No location was found!")
|
|
return
|
|
if switch == 'spring':
|
|
location.db.spring_desc = self.args
|
|
elif switch == 'summer':
|
|
location.db.summer_desc = self.args
|
|
elif switch == 'autumn':
|
|
location.db.autumn_desc = self.args
|
|
elif switch == 'winter':
|
|
location.db.winter_desc = self.args
|
|
# clear flag to force an update
|
|
self.reset_times(location)
|
|
caller.msg("Seasonal description was set on %s." % location.key)
|
|
else:
|
|
# No seasonal desc set, maybe this is not an extended room
|
|
if self.rhs:
|
|
text = self.rhs
|
|
obj = caller.search(self.lhs)
|
|
if not obj:
|
|
return
|
|
else:
|
|
text = self.args
|
|
obj = location
|
|
obj.db.desc = text # a compatibility fallback
|
|
if obj.attributes.has("general_desc"):
|
|
obj.db.general_desc = text
|
|
self.reset_times(obj)
|
|
caller.msg("General description was set on %s." % obj.key)
|
|
else:
|
|
# this is not an ExtendedRoom.
|
|
caller.msg("The description was set on %s." % obj.key)
|
|
|
|
|
|
# Simple command to view the current time and season
|
|
|
|
class CmdGameTime(default_cmds.MuxCommand):
|
|
"""
|
|
Check the game time
|
|
|
|
Usage:
|
|
time
|
|
|
|
Shows the current in-game time and season.
|
|
"""
|
|
key = "time"
|
|
locks = "cmd:all()"
|
|
help_category = "General"
|
|
|
|
def func(self):
|
|
"""Reads time info from current room"""
|
|
location = self.caller.location
|
|
if not location or not hasattr(location, "get_time_and_season"):
|
|
self.caller.msg("No location available - you are outside time.")
|
|
else:
|
|
season, timeslot = location.get_time_and_season()
|
|
prep = "a"
|
|
if season == "autumn":
|
|
prep = "an"
|
|
self.caller.msg("It's %s %s day, in the %s." % (prep, season, timeslot))
|