"""
XYZ-aware rooms and exits.
These are intended to be used with the XYZgrid - which interprets the `Z` 'coordinate' as
different (named) 2D XY maps. But if not wanting to use the XYZgrid gridding, these can also be
used as stand-alone XYZ-coordinate-aware rooms.
"""
from django.conf import settings
from django.db.models import Q
from evennia.objects.manager import ObjectManager
from evennia.objects.objects import DefaultExit, DefaultRoom
# name of all tag categories. Note that the Z-coordinate is
# the `map_name` of the XYZgrid
MAP_X_TAG_CATEGORY = "room_x_coordinate"
MAP_Y_TAG_CATEGORY = "room_y_coordinate"
MAP_Z_TAG_CATEGORY = "room_z_coordinate"
MAP_XDEST_TAG_CATEGORY = "exit_dest_x_coordinate"
MAP_YDEST_TAG_CATEGORY = "exit_dest_y_coordinate"
MAP_ZDEST_TAG_CATEGORY = "exit_dest_z_coordinate"
GET_XYZGRID = None
CLIENT_DEFAULT_WIDTH = settings.CLIENT_DEFAULT_WIDTH
[docs]class XYZManager(ObjectManager):
"""
This is accessed as `.objects` on the coordinate-aware typeclasses (`XYZRoom`, `XYZExit`). It
has all the normal Object/Room manager methods (filter/get etc) but also special helpers for
efficiently querying the room in the database based on XY coordinates.
"""
[docs] def filter_xyz(self, xyz=("*", "*", "*"), **kwargs):
"""
Filter queryset based on XYZ position on the grid. The Z-position is the name of the XYMap
Set a coordinate to `'*'` to act as a wildcard (setting all coords to `*` will thus find
*all* XYZ rooms). This will also find children of XYZRooms on the given coordinates.
Kwargs:
xyz (tuple, optional): A coordinate tuple (X, Y, Z) where each element is either
an `int` or `str`. The character `'*'` acts as a wild card. Note that
the `Z`-coordinate is the name of the map (case-sensitive) in the XYZgrid contrib.
**kwargs: All other kwargs are passed on to the query.
Returns:
django.db.queryset.Queryset: A queryset that can be combined
with further filtering.
"""
x, y, z = xyz
wildcard = "*"
return (
self.filter_family(**kwargs)
.filter(
Q()
if x == wildcard
else Q(db_tags__db_key=str(x), db_tags__db_category=MAP_X_TAG_CATEGORY)
)
.filter(
Q()
if y == wildcard
else Q(db_tags__db_key=str(y), db_tags__db_category=MAP_Y_TAG_CATEGORY)
)
.filter(
Q()
if z == wildcard
else Q(db_tags__db_key=str(z), db_tags__db_category=MAP_Z_TAG_CATEGORY)
)
)
[docs] def get_xyz(self, xyz=(0, 0, "map"), **kwargs):
"""
Always return a single matched entity directly. This accepts no `*`-wildcards.
This will also find children of XYZRooms on the given coordinates.
Kwargs:
xyz (tuple): A coordinate tuple of `int` or `str` (not `'*'`, no wildcards are
allowed in get). The `Z`-coordinate acts as the name (case-sensitive) of the map in
the XYZgrid contrib.
**kwargs: All other kwargs are passed on to the query.
Returns:
XYRoom: A single room instance found at the combination of x, y and z given.
Raises:
XYZRoom.DoesNotExist: If no matching query was found.
XYZRoom.MultipleObjectsReturned: If more than one match was found (which should not
possible with a unique combination of x,y,z).
"""
# filter by tags, then figure out of we got a single match or not
query = self.filter_xyz(xyz=xyz, **kwargs)
ncount = query.count()
if ncount == 1:
return query.first()
# error - mimic default get() behavior but with a little more info
x, y, z = xyz
inp = f"Query: xyz=({x},{y},{z}), " + ",".join(
f"{key}={val}" for key, val in kwargs.items()
)
if ncount > 1:
raise self.model.MultipleObjectsReturned(inp)
else:
raise self.model.DoesNotExist(inp)
[docs]class XYZExitManager(XYZManager):
"""
Used by Exits.
Manager that also allows searching for destinations based on XY coordinates.
"""
[docs] def filter_xyz_exit(self, xyz=("*", "*", "*"), xyz_destination=("*", "*", "*"), **kwargs):
"""
Used by exits (objects with a source and -destination property).
Find all exits out of a source or to a particular destination. This will also find
children of XYZExit on the given coords..
Kwargs:
xyz (tuple, optional): A coordinate (X, Y, Z) for the source location. Each
element is either an `int` or `str`. The character `'*'` is used as a wildcard -
so setting all coordinates to the wildcard will return *all* XYZExits.
the `Z`-coordinate is the name of the map (case-sensitive) in the XYZgrid contrib.
xyz_destination (tuple, optional): Same as `xyz` but for the destination of the
exit.
**kwargs: All other kwargs are passed on to the query.
Returns:
django.db.queryset.Queryset: A queryset that can be combined
with further filtering.
Notes:
Depending on what coordinates are set to `*`, this can be used to
e.g. find all exits in a room, or leading to a room or even to rooms
in a particular X/Y row/column.
In the XYZgrid, `z_source != z_destination` means a _transit_ between different maps.
"""
x, y, z = xyz
xdest, ydest, zdest = xyz_destination
wildcard = "*"
return (
self.filter_family(**kwargs)
.filter(
Q()
if x == wildcard
else Q(db_tags__db_key=str(x), db_tags__db_category=MAP_X_TAG_CATEGORY)
)
.filter(
Q()
if y == wildcard
else Q(db_tags__db_key=str(y), db_tags__db_category=MAP_Y_TAG_CATEGORY)
)
.filter(
Q()
if z == wildcard
else Q(db_tags__db_key=str(z), db_tags__db_category=MAP_Z_TAG_CATEGORY)
)
.filter(
Q()
if xdest == wildcard
else Q(db_tags__db_key=str(xdest), db_tags__db_category=MAP_XDEST_TAG_CATEGORY)
)
.filter(
Q()
if ydest == wildcard
else Q(db_tags__db_key=str(ydest), db_tags__db_category=MAP_YDEST_TAG_CATEGORY)
)
.filter(
Q()
if zdest == wildcard
else Q(db_tags__db_key=str(zdest), db_tags__db_category=MAP_ZDEST_TAG_CATEGORY)
)
)
[docs] def get_xyz_exit(self, xyz=(0, 0, "map"), xyz_destination=(0, 0, "map"), **kwargs):
"""
Used by exits (objects with a source and -destination property). Get a single
exit. All source/destination coordinates (as well as the map's name) are required.
This will also find children of XYZExits on the given coords.
Kwargs:
xyz (tuple, optional): A coordinate (X, Y, Z) for the source location. Each
element is either an `int` or `str` (not `*`, no wildcards are allowed for get).
the `Z`-coordinate is the name of the map (case-sensitive) in the XYZgrid contrib.
xyz_destination_coord (tuple, optional): Same as the `xyz` but for the destination of
the exit.
**kwargs: All other kwargs are passed on to the query.
Returns:
XYZExit: A single exit instance found at the combination of x, y and xgiven.
Raises:
XYZExit.DoesNotExist: If no matching query was found.
XYZExit.MultipleObjectsReturned: If more than one match was found (which should not
be possible with a unique combination of x,y,x).
Notes:
All coordinates are required.
"""
x, y, z = xyz
xdest, ydest, zdest = xyz_destination
# mimic get_family
paths = [self.model.path] + [
"%s.%s" % (cls.__module__, cls.__name__) for cls in self._get_subclasses(self.model)
]
kwargs["db_typeclass_path__in"] = paths
try:
return (
self.filter(db_tags__db_key=str(z), db_tags__db_category=MAP_Z_TAG_CATEGORY)
.filter(db_tags__db_key=str(x), db_tags__db_category=MAP_X_TAG_CATEGORY)
.filter(db_tags__db_key=str(y), db_tags__db_category=MAP_Y_TAG_CATEGORY)
.filter(db_tags__db_key=str(xdest), db_tags__db_category=MAP_XDEST_TAG_CATEGORY)
.filter(db_tags__db_key=str(ydest), db_tags__db_category=MAP_YDEST_TAG_CATEGORY)
.filter(db_tags__db_key=str(zdest), db_tags__db_category=MAP_ZDEST_TAG_CATEGORY)
.get(**kwargs)
)
except self.model.DoesNotExist:
inp = f"xyz=({x},{y},{z}),xyz_destination=({xdest},{ydest},{zdest})," + ",".join(
f"{key}={val}" for key, val in kwargs.items()
)
raise self.model.DoesNotExist(
f"{self.model.__name__} matching query {inp} does not exist."
)
[docs]class XYZRoom(DefaultRoom):
"""
A game location aware of its XYZ-position.
Special properties:
map_display (bool): If the return_appearance of the room should
show the map or not.
map_mode (str): One of 'nodes' or 'scan'. See `return_apperance`
for examples of how they differ.
map_visual_range (int): How far on the map one can see. This is a
fixed value here, but could also be dynamic based on skills,
light etc.
map_character_symbol (str): The character symbol to use to show
the character position. Can contain color info. Default is
the @-character.
map_area_client (bool): If True, map area will always fill the entire
client width. If False, the map area's width will vary with the
width of the currently displayed location description.
map_fill_all (bool): I the map area should fill the client width or not.
map_separator_char (str): The char to use to separate the map area from
the room description.
"""
# makes the `room.objects.filter_xymap` available
objects = XYZManager()
# default settings for map visualization
map_display = True
map_mode = "nodes" # or 'scan'
map_visual_range = 2
map_character_symbol = "|g@|n"
map_align = "c"
map_target_path_style = "|y{display_symbol}|n"
map_fill_all = True
map_separator_char = "|x~|n"
def __str__(self):
return repr(self)
def __repr__(self):
x, y, z = self.xyz
return f"<XYZRoom '{self.db_key}', XYZ=({x},{y},{z})>"
@property
def xyz(self):
if not hasattr(self, "_xyz"):
x = self.tags.get(category=MAP_X_TAG_CATEGORY, return_list=False)
y = self.tags.get(category=MAP_Y_TAG_CATEGORY, return_list=False)
z = self.tags.get(category=MAP_Z_TAG_CATEGORY, return_list=False)
if x is None or y is None or z is None:
# don't cache unfinished coordinate (probably tags have not finished saving)
return tuple(
int(coord) if coord is not None and coord.lstrip("-").isdigit() else coord
for coord in (x, y, z)
)
# cache result, convert to correct types (tags are strings)
self._xyz = tuple(
int(coord) if coord.lstrip("-").isdigit() else coord for coord in (x, y, z)
)
return self._xyz
@property
def xyzgrid(self):
global GET_XYZGRID
if not GET_XYZGRID:
from evennia.contrib.grid.xyzgrid.xyzgrid import get_xyzgrid as GET_XYZGRID
return GET_XYZGRID()
@property
def xymap(self):
if not hasattr(self, "_xymap"):
xyzgrid = self.xyzgrid
_, _, Z = self.xyz
self._xymap = xyzgrid.get_map(Z)
return self._xymap
[docs] @classmethod
def create(cls, key, account=None, xyz=(0, 0, "map"), **kwargs):
"""
Creation method aware of XYZ coordinates.
Args:
key (str): New name of object to create.
account (Account, optional): Any Account to tie to this entity (usually not used for
rooms).
xyz (tuple, optional): A 3D coordinate (X, Y, Z) for this room's location on a
map grid. Each element can theoretically be either `int` or `str`, but for the
XYZgrid, the X, Y are always integers while the `Z` coordinate is used for the
map's name.
**kwargs: Will be passed into the normal `DefaultRoom.create` method.
Returns:
room (Object): A newly created Room of the given typeclass.
errors (list): A list of errors in string form, if any.
Notes:
The (X, Y, Z) coordinate must be unique across the game. If trying to create
a room at a coordinate that already exists, an error will be returned.
"""
try:
x, y, z = xyz
except ValueError:
return None, [
f"XYRroom.create got `xyz={xyz}` - needs a valid (X,Y,Z) "
"coordinate of ints/strings."
]
existing_query = cls.objects.filter_xyz(xyz=(x, y, z))
if existing_query.exists():
existing_room = existing_query.first()
return None, [
f"XYRoom XYZ=({x},{y},{z}) already exists "
f"(existing room is named '{existing_room.db_key}')!"
]
tags = (
(str(x), MAP_X_TAG_CATEGORY),
(str(y), MAP_Y_TAG_CATEGORY),
(str(z), MAP_Z_TAG_CATEGORY),
)
return DefaultRoom.create(key, account=account, tags=tags, typeclass=cls, **kwargs)
[docs] def get_display_name(self, looker, **kwargs):
"""
Shows both the #dbref and the xyz coord to staff.
Args:
looker (TypedObject): The object or account that is looking
at/getting inforamtion for this object.
Returns:
name (str): A string containing the name of the object,
including the DBREF and XYZ coord if this user is
privileged to control the room.
"""
if self.locks.check_lockstring(looker, "perm(Builder)"):
x, y, z = self.xyz
return f"{self.name}[#{self.id}({x},{y},{z})]"
return self.name
[docs] def return_appearance(self, looker, **kwargs):
"""
Displays the map in addition to the room description
Args:
looker (Object): The one looking.
Keyword Args:
map_display (bool): Turn on/off map display.
map_visual_range (int): How 'far' one can see on the map. For
'nodes' mode, this is how many connected nodes away, for
'scan' mode, this is number of characters away on the map.
Default is a visual range of 2 (nodes).
map_mode (str): One of 'node' (default) or 'scan'.
map_character_symbol (str): The character symbol to use. Defaults to '@'.
This can also be colored with standard color tags. Set to `None`
to just show the current node.
Examples:
Assume this is the full map (where '@' is the character location):
::
#----------------#
| |
| |
# @------------#-#
| |
#----------------#
This is how it will look in 'nodes' mode with `visual_range=2`:
::
@------------#-#
And in 'scan' mode with `visual_range=2`:
::
|
|
# @--
|
#----
Notes:
The map kwargs default to values with the same names set on the
XYZRoom class; these can be changed by overriding the room.
We return the map display as a separate msg() call here, in order
to make it easier to break this out into a client pane etc. The
map is tagged with type='xymap'.
"""
# normal get_appearance of a room
room_desc = super().return_appearance(looker, **kwargs)
# get current xymap
xyz = self.xyz
xymap = self.xyzgrid.get_map(xyz[2])
if xymap and kwargs.get("map_display", xymap.options.get("map_display", self.map_display)):
# show the near-area map.
map_character_symbol = kwargs.get(
"map_character_symbol",
xymap.options.get("map_character_symbol", self.map_character_symbol),
)
map_visual_range = kwargs.get(
"map_visual_range", xymap.options.get("map_visual_range", self.map_visual_range)
)
map_mode = kwargs.get("map_mode", xymap.options.get("map_mode", self.map_mode))
map_align = kwargs.get("map_align", xymap.options.get("map_align", self.map_align))
map_target_path_style = kwargs.get(
"map_target_path_style",
xymap.options.get("map_target_path_style", self.map_target_path_style),
)
map_area_client = kwargs.get(
"map_fill_all", xymap.options.get("map_fill_all", self.map_fill_all)
)
map_separator_char = kwargs.get(
"map_separator_char",
xymap.options.get("map_separator_char", self.map_separator_char),
)
sessions = looker.sessions.get()
if sessions:
client_width, _ = sessions[0].get_client_size()
else:
client_width = CLIENT_DEFAULT_WIDTH
map_width = xymap.max_x
if map_area_client:
display_width = client_width
else:
display_width = max(map_width, max(len(line) for line in room_desc.split("\n")))
# align map
map_indent = 0
sep_width = display_width
if map_align == "r":
map_indent = max(0, display_width - map_width)
elif map_align == "c":
map_indent = max(0, (display_width - map_width) // 2)
# data set by the goto/path-command, for displaying the shortest path
path_data = looker.ndb.xy_path_data
target_xy = path_data.target.xyz[:2] if path_data else None
# get visual range display from map
map_display = xymap.get_visual_range(
(xyz[0], xyz[1]),
dist=map_visual_range,
mode=map_mode,
target=target_xy,
target_path_style=map_target_path_style,
character=map_character_symbol,
max_size=(display_width, None),
indent=map_indent,
)
sep = map_separator_char * sep_width
map_display = f"{sep}|n\n{map_display}\n{sep}"
# echo directly to make easier to separate in client
looker.msg(text=(map_display, {"type": "xymap"}), options=None)
return room_desc
[docs]class XYZExit(DefaultExit):
"""
An exit that is aware of the XYZ coordinate system.
"""
objects = XYZExitManager()
def __str__(self):
return repr(self)
def __repr__(self):
x, y, z = self.xyz
xd, yd, zd = self.xyz_destination
return f"<XYZExit '{self.db_key}', XYZ=({x},{y},{z})->({xd},{yd},{zd})>"
@property
def xyzgrid(self):
global GET_XYZGRID
if not GET_XYZGRID:
from evennia.contrib.grid.xyzgrid.xyzgrid import get_xyzgrid as GET_XYZGRID
return GET_XYZGRID()
@property
def xyz(self):
if not hasattr(self, "_xyz"):
x = self.tags.get(category=MAP_X_TAG_CATEGORY, return_list=False)
y = self.tags.get(category=MAP_Y_TAG_CATEGORY, return_list=False)
z = self.tags.get(category=MAP_Z_TAG_CATEGORY, return_list=False)
if x is None or y is None or z is None:
# don't cache yet unfinished coordinate
return (x, y, z)
# cache result
self._xyz = (x, y, z)
return self._xyz
@property
def xyz_destination(self):
if not hasattr(self, "_xyz_destination"):
xd = self.tags.get(category=MAP_XDEST_TAG_CATEGORY, return_list=False)
yd = self.tags.get(category=MAP_YDEST_TAG_CATEGORY, return_list=False)
zd = self.tags.get(category=MAP_ZDEST_TAG_CATEGORY, return_list=False)
if xd is None or yd is None or zd is None:
# don't cache unfinished coordinate
return (xd, yd, zd)
# cache result
self._xyz_destination = (xd, yd, zd)
return self._xyz_destination
[docs] @classmethod
def create(
cls,
key,
account=None,
xyz=(0, 0, "map"),
xyz_destination=(0, 0, "map"),
location=None,
destination=None,
**kwargs,
):
"""
Creation method aware of coordinates.
Args:
key (str): New name of object to create.
account (Account, optional): Any Account to tie to this entity (unused for exits).
xyz (tuple or None, optional): A 3D coordinate (X, Y, Z) for this room's location
on a map grid. Each element can theoretically be either `int` or `str`, but for the
XYZgrid contrib, the X, Y are always integers while the `Z` coordinate is used for
the map's name. Set to `None` if instead using a direct room reference with
`location`.
xyz_destination (tuple, optional): The XYZ coordinate of the place the exit
leads to. Will be ignored if `destination` is given directly.
location (Object, optional): If given, overrides `xyz` coordinate. This can be used
to place this exit in any room, including non-XYRoom type rooms.
destination (Object, optional): If given, overrides `xyz_destination`. This can
be any room (including non-XYRooms) and is not checked for XYZ coordinates.
**kwargs: Will be passed into the normal `DefaultRoom.create` method.
Returns:
tuple: A tuple `(exit, errors)`, where the errors is a list containing all found
errors (in which case the returned exit will be `None`).
"""
tags = []
if location:
source = location
else:
try:
x, y, z = xyz
except ValueError:
return None, ["XYExit.create need either `xyz=(X,Y,Z)` coordinate or a `location`."]
else:
source = XYZRoom.objects.get_xyz(xyz=(x, y, z))
tags.extend(
(
(str(x), MAP_X_TAG_CATEGORY),
(str(y), MAP_Y_TAG_CATEGORY),
(str(z), MAP_Z_TAG_CATEGORY),
)
)
if destination:
dest = destination
else:
try:
xdest, ydest, zdest = xyz_destination
except ValueError:
return None, [
"XYExit.create need either `xyz_destination=(X,Y,Z)` coordinate "
"or a `destination`."
]
else:
dest = XYZRoom.objects.get_xyz(xyz=(xdest, ydest, zdest))
tags.extend(
(
(str(xdest), MAP_XDEST_TAG_CATEGORY),
(str(ydest), MAP_YDEST_TAG_CATEGORY),
(str(zdest), MAP_ZDEST_TAG_CATEGORY),
)
)
return DefaultExit.create(
key, source, dest, account=account, tags=tags, typeclass=cls, **kwargs
)
