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evennia/evennia/commands/default/building.py

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"""
Building and world design commands
"""
from builtins import range
import re
from django.conf import settings
from django.db.models import Q
from evennia.objects.models import ObjectDB
from evennia.locks.lockhandler import LockException
from evennia.commands.cmdhandler import get_and_merge_cmdsets
from evennia.utils import create, utils, search
from evennia.utils.utils import inherits_from, class_from_module
from evennia.utils.eveditor import EvEditor
from evennia.utils.spawner import spawn
from evennia.utils.ansi import raw
COMMAND_DEFAULT_CLASS = class_from_module(settings.COMMAND_DEFAULT_CLASS)
# limit symbol import for API
__all__ = ("ObjManipCommand", "CmdSetObjAlias", "CmdCopy",
"CmdCpAttr", "CmdMvAttr", "CmdCreate",
"CmdDesc", "CmdDestroy", "CmdDig", "CmdTunnel", "CmdLink",
"CmdUnLink", "CmdSetHome", "CmdListCmdSets", "CmdName",
"CmdOpen", "CmdSetAttribute", "CmdTypeclass", "CmdWipe",
"CmdLock", "CmdExamine", "CmdFind", "CmdTeleport",
"CmdScript", "CmdTag", "CmdSpawn")
try:
# used by @set
from ast import literal_eval as _LITERAL_EVAL
except ImportError:
# literal_eval is not available before Python 2.6
_LITERAL_EVAL = None
# used by @find
CHAR_TYPECLASS = settings.BASE_CHARACTER_TYPECLASS
ROOM_TYPECLASS = settings.BASE_ROOM_TYPECLASS
EXIT_TYPECLASS = settings.BASE_EXIT_TYPECLASS
_DEFAULT_WIDTH = settings.CLIENT_DEFAULT_WIDTH
_PROTOTYPE_PARENTS = None
class ObjManipCommand(COMMAND_DEFAULT_CLASS):
"""
This is a parent class for some of the defining objmanip commands
since they tend to have some more variables to define new objects.
Each object definition can have several components. First is
always a name, followed by an optional alias list and finally an
some optional data, such as a typeclass or a location. A comma ','
separates different objects. Like this:
name1;alias;alias;alias:option, name2;alias;alias ...
Spaces between all components are stripped.
A second situation is attribute manipulation. Such commands
are simpler and offer combinations
objname/attr/attr/attr, objname/attr, ...
"""
# OBS - this is just a parent - it's not intended to actually be
# included in a commandset on its own!
def parse(self):
"""
We need to expand the default parsing to get all
the cases, see the module doc.
"""
# get all the normal parsing done (switches etc)
super(ObjManipCommand, self).parse()
obj_defs = ([], []) # stores left- and right-hand side of '='
obj_attrs = ([], []) # "
for iside, arglist in enumerate((self.lhslist, self.rhslist)):
# lhslist/rhslist is already split by ',' at this point
for objdef in arglist:
aliases, option, attrs = [], None, []
if ':' in objdef:
objdef, option = [part.strip() for part in objdef.rsplit(':', 1)]
if ';' in objdef:
objdef, aliases = [part.strip() for part in objdef.split(';', 1)]
aliases = [alias.strip() for alias in aliases.split(';') if alias.strip()]
if '/' in objdef:
objdef, attrs = [part.strip() for part in objdef.split('/', 1)]
attrs = [part.strip().lower() for part in attrs.split('/') if part.strip()]
# store data
obj_defs[iside].append({"name": objdef, 'option': option, 'aliases': aliases})
obj_attrs[iside].append({"name": objdef, 'attrs': attrs})
# store for future access
self.lhs_objs = obj_defs[0]
self.rhs_objs = obj_defs[1]
self.lhs_objattr = obj_attrs[0]
self.rhs_objattr = obj_attrs[1]
class CmdSetObjAlias(COMMAND_DEFAULT_CLASS):
"""
adding permanent aliases for object
Usage:
@alias <obj> [= [alias[,alias,alias,...]]]
@alias <obj> =
Assigns aliases to an object so it can be referenced by more
than one name. Assign empty to remove all aliases from object.
Observe that this is not the same thing as personal aliases
created with the 'nick' command! Aliases set with @alias are
changing the object in question, making those aliases usable
by everyone.
"""
key = "@alias"
aliases = "@setobjalias"
locks = "cmd:perm(setobjalias) or perm(Builder)"
help_category = "Building"
def func(self):
"""Set the aliases."""
caller = self.caller
if not self.lhs:
string = "Usage: @alias <obj> [= [alias[,alias ...]]]"
self.caller.msg(string)
return
objname = self.lhs
# Find the object to receive aliases
obj = caller.search(objname)
if not obj:
return
if self.rhs is None:
# no =, so we just list aliases on object.
aliases = obj.aliases.all()
if aliases:
caller.msg("Aliases for '%s': %s" % (obj.get_display_name(caller), ", ".join(aliases)))
else:
caller.msg("No aliases exist for '%s'." % obj.get_display_name(caller))
return
if not (obj.access(caller, "control") or obj.access(caller, 'edit')):
caller.msg("You don't have permission to do that.")
return
if not self.rhs:
# we have given an empty =, so delete aliases
old_aliases = obj.aliases.all()
if old_aliases:
caller.msg("Cleared aliases from %s: %s" % (obj.get_display_name(caller), ", ".join(old_aliases)))
obj.aliases.clear()
else:
caller.msg("No aliases to clear.")
return
# merge the old and new aliases (if any)
old_aliases = obj.aliases.all()
new_aliases = [alias.strip().lower() for alias in self.rhs.split(',')
if alias.strip()]
# make the aliases only appear once
old_aliases.extend(new_aliases)
aliases = list(set(old_aliases))
# save back to object.
obj.aliases.add(aliases)
# we need to trigger this here, since this will force
# (default) Exits to rebuild their Exit commands with the new
# aliases
obj.at_cmdset_get(force_init=True)
# report all aliases on the object
caller.msg("Alias(es) for '%s' set to %s." % (obj.get_display_name(caller), str(obj.aliases)))
class CmdCopy(ObjManipCommand):
"""
copy an object and its properties
Usage:
@copy[/reset] <original obj> [= <new_name>][;alias;alias..]
[:<new_location>] [,<new_name2> ...]
switch:
reset - make a 'clean' copy off the object, thus
removing any changes that might have been made to the original
since it was first created.
Create one or more copies of an object. If you don't supply any targets,
one exact copy of the original object will be created with the name *_copy.
"""
key = "@copy"
locks = "cmd:perm(copy) or perm(Builder)"
help_category = "Building"
def func(self):
"""Uses ObjManipCommand.parse()"""
caller = self.caller
args = self.args
if not args:
caller.msg("Usage: @copy <obj> [=<new_name>[;alias;alias..]]"
"[:<new_location>] [, <new_name2>...]")
return
if not self.rhs:
# this has no target =, so an identical new object is created.
from_obj_name = self.args
from_obj = caller.search(from_obj_name)
if not from_obj:
return
to_obj_name = "%s_copy" % from_obj_name
to_obj_aliases = ["%s_copy" % alias for alias in from_obj.aliases.all()]
copiedobj = ObjectDB.objects.copy_object(from_obj, new_key=to_obj_name,
new_aliases=to_obj_aliases)
if copiedobj:
string = "Identical copy of %s, named '%s' was created." % (from_obj_name, to_obj_name)
else:
string = "There was an error copying %s."
else:
# we have specified =. This might mean many object targets
from_obj_name = self.lhs_objs[0]['name']
from_obj = caller.search(from_obj_name)
if not from_obj:
return
for objdef in self.rhs_objs:
# loop through all possible copy-to targets
to_obj_name = objdef['name']
to_obj_aliases = objdef['aliases']
to_obj_location = objdef['option']
if to_obj_location:
to_obj_location = caller.search(to_obj_location,
global_search=True)
if not to_obj_location:
return
copiedobj = ObjectDB.objects.copy_object(from_obj,
new_key=to_obj_name,
new_location=to_obj_location,
new_aliases=to_obj_aliases)
if copiedobj:
string = "Copied %s to '%s' (aliases: %s)." % (from_obj_name, to_obj_name,
to_obj_aliases)
else:
string = "There was an error copying %s to '%s'." % (from_obj_name,
to_obj_name)
# we are done, echo to user
caller.msg(string)
class CmdCpAttr(ObjManipCommand):
"""
copy attributes between objects
Usage:
@cpattr[/switch] <obj>/<attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@cpattr[/switch] <obj>/<attr> = <obj1> [,<obj2>,<obj3>,...]
@cpattr[/switch] <attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@cpattr[/switch] <attr> = <obj1>[,<obj2>,<obj3>,...]
Switches:
move - delete the attribute from the source object after copying.
Example:
@cpattr coolness = Anna/chillout, Anna/nicety, Tom/nicety
->
copies the coolness attribute (defined on yourself), to attributes
on Anna and Tom.
Copy the attribute one object to one or more attributes on another object.
If you don't supply a source object, yourself is used.
"""
key = "@cpattr"
locks = "cmd:perm(cpattr) or perm(Builder)"
help_category = "Building"
def check_from_attr(self, obj, attr, clear=False):
"""
Hook for overriding on subclassed commands. Checks to make sure a
caller can copy the attr from the object in question. If not, return a
false value and the command will abort. An error message should be
provided by this function.
If clear is True, user is attempting to move the attribute.
"""
return True
def check_to_attr(self, obj, attr):
"""
Hook for overriding on subclassed commands. Checks to make sure a
caller can write to the specified attribute on the specified object.
If not, return a false value and the attribute will be skipped. An
error message should be provided by this function.
"""
return True
def check_has_attr(self, obj, attr):
"""
Hook for overriding on subclassed commands. Do any preprocessing
required and verify an object has an attribute.
"""
if not obj.attributes.has(attr):
self.caller.msg(
"%s doesn't have an attribute %s." % (obj.name, attr))
return False
return True
def get_attr(self, obj, attr):
"""
Hook for overriding on subclassed commands. Do any preprocessing
required and get the attribute from the object.
"""
return obj.attributes.get(attr)
def func(self):
"""
Do the copying.
"""
caller = self.caller
if not self.rhs:
string = """Usage:
@cpattr[/switch] <obj>/<attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@cpattr[/switch] <obj>/<attr> = <obj1> [,<obj2>,<obj3>,...]
@cpattr[/switch] <attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@cpattr[/switch] <attr> = <obj1>[,<obj2>,<obj3>,...]"""
caller.msg(string)
return
lhs_objattr = self.lhs_objattr
to_objs = self.rhs_objattr
from_obj_name = lhs_objattr[0]['name']
from_obj_attrs = lhs_objattr[0]['attrs']
if not from_obj_attrs:
# this means the from_obj_name is actually an attribute
# name on self.
from_obj_attrs = [from_obj_name]
from_obj = self.caller
else:
from_obj = caller.search(from_obj_name)
if not from_obj or not to_objs:
caller.msg("You have to supply both source object and target(s).")
return
# copy to all to_obj:ects
if "move" in self.switches:
clear = True
else:
clear = False
if not self.check_from_attr(from_obj, from_obj_attrs[0], clear=clear):
return
for attr in from_obj_attrs:
if not self.check_has_attr(from_obj, attr):
return
if (len(from_obj_attrs) != len(set(from_obj_attrs))) and clear:
self.caller.msg("|RCannot have duplicate source names when moving!")
return
result = []
for to_obj in to_objs:
to_obj_name = to_obj['name']
to_obj_attrs = to_obj['attrs']
to_obj = caller.search(to_obj_name)
if not to_obj:
result.append("\nCould not find object '%s'" % to_obj_name)
continue
for inum, from_attr in enumerate(from_obj_attrs):
try:
to_attr = to_obj_attrs[inum]
except IndexError:
# if there are too few attributes given
# on the to_obj, we copy the original name instead.
to_attr = from_attr
if not self.check_to_attr(to_obj, to_attr):
continue
value = self.get_attr(from_obj, from_attr)
to_obj.attributes.add(to_attr, value)
if (clear and not (from_obj == to_obj and
from_attr == to_attr)):
from_obj.attributes.remove(from_attr)
result.append("\nMoved %s.%s -> %s.%s. (value: %s)" % (from_obj.name,
from_attr,
to_obj_name,
to_attr,
repr(value)))
else:
result.append("\nCopied %s.%s -> %s.%s. (value: %s)" % (from_obj.name,
from_attr,
to_obj_name,
to_attr,
repr(value)))
caller.msg("".join(result))
class CmdMvAttr(ObjManipCommand):
"""
move attributes between objects
Usage:
@mvattr[/switch] <obj>/<attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@mvattr[/switch] <obj>/<attr> = <obj1> [,<obj2>,<obj3>,...]
@mvattr[/switch] <attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@mvattr[/switch] <attr> = <obj1>[,<obj2>,<obj3>,...]
Switches:
copy - Don't delete the original after moving.
Move an attribute from one object to one or more attributes on another
object. If you don't supply a source object, yourself is used.
"""
key = "@mvattr"
locks = "cmd:perm(mvattr) or perm(Builder)"
help_category = "Building"
def func(self):
"""
Do the moving
"""
if not self.rhs:
string = """Usage:
@mvattr[/switch] <obj>/<attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@mvattr[/switch] <obj>/<attr> = <obj1> [,<obj2>,<obj3>,...]
@mvattr[/switch] <attr> = <obj1>/<attr1> [,<obj2>/<attr2>,<obj3>/<attr3>,...]
@mvattr[/switch] <attr> = <obj1>[,<obj2>,<obj3>,...]"""
self.caller.msg(string)
return
# simply use @cpattr for all the functionality
if "copy" in self.switches:
self.execute_cmd("@cpattr %s" % self.args)
else:
self.execute_cmd("@cpattr/move %s" % self.args)
class CmdCreate(ObjManipCommand):
"""
create new objects
Usage:
@create[/drop] <objname>[;alias;alias...][:typeclass], <objname>...
switch:
drop - automatically drop the new object into your current
location (this is not echoed). This also sets the new
object's home to the current location rather than to you.
Creates one or more new objects. If typeclass is given, the object
is created as a child of this typeclass. The typeclass script is
assumed to be located under types/ and any further
directory structure is given in Python notation. So if you have a
correct typeclass 'RedButton' defined in
types/examples/red_button.py, you could create a new
object of this type like this:
@create/drop button;red : examples.red_button.RedButton
"""
key = "@create"
locks = "cmd:perm(create) or perm(Builder)"
help_category = "Building"
# lockstring of newly created objects, for easy overloading.
# Will be formatted with the {id} of the creating object.
new_obj_lockstring = "control:id({id}) or perm(Admin);delete:id({id}) or perm(Admin)"
def func(self):
"""
Creates the object.
"""
caller = self.caller
if not self.args:
string = "Usage: @create[/drop] <newname>[;alias;alias...] [:typeclass.path]"
caller.msg(string)
return
# create the objects
for objdef in self.lhs_objs:
string = ""
name = objdef['name']
aliases = objdef['aliases']
typeclass = objdef['option']
# create object (if not a valid typeclass, the default
# object typeclass will automatically be used)
lockstring = self.new_obj_lockstring.format(id=caller.id)
obj = create.create_object(typeclass, name, caller,
home=caller, aliases=aliases,
locks=lockstring, report_to=caller)
if not obj:
continue
if aliases:
string = "You create a new %s: %s (aliases: %s)."
string = string % (obj.typename, obj.name, ", ".join(aliases))
else:
string = "You create a new %s: %s."
string = string % (obj.typename, obj.name)
# set a default desc
if not obj.db.desc:
obj.db.desc = "You see nothing special."
if 'drop' in self.switches:
if caller.location:
obj.home = caller.location
obj.move_to(caller.location, quiet=True)
if string:
caller.msg(string)
def _desc_load(caller):
return caller.db.evmenu_target.db.desc or ""
def _desc_save(caller, buf):
"""
Save line buffer to the desc prop. This should
return True if successful and also report its status to the user.
"""
caller.db.evmenu_target.db.desc = buf
caller.msg("Saved.")
return True
def _desc_quit(caller):
caller.attributes.remove("evmenu_target")
caller.msg("Exited editor.")
class CmdDesc(COMMAND_DEFAULT_CLASS):
"""
describe an object or the current room.
Usage:
@desc [<obj> =] <description>
Switches:
edit - Open up a line editor for more advanced editing.
Sets the "desc" attribute on an object. If an object is not given,
describe the current room.
"""
key = "@desc"
aliases = "@describe"
locks = "cmd:perm(desc) or perm(Builder)"
help_category = "Building"
def edit_handler(self):
if self.rhs:
self.msg("|rYou may specify a value, or use the edit switch, "
"but not both.|n")
return
if self.args:
obj = self.caller.search(self.args)
else:
obj = self.caller.location or self.msg("|rYou can't describe oblivion.|n")
if not obj:
return
self.caller.db.evmenu_target = obj
# launch the editor
EvEditor(self.caller, loadfunc=_desc_load, savefunc=_desc_save,
quitfunc=_desc_quit, key="desc", persistent=True)
return
def func(self):
"""Define command"""
caller = self.caller
if not self.args and 'edit' not in self.switches:
caller.msg("Usage: @desc [<obj> =] <description>")
return
if 'edit' in self.switches:
self.edit_handler()
return
if self.rhs:
# We have an =
obj = caller.search(self.lhs)
if not obj:
return
desc = self.rhs
else:
obj = caller.location or self.msg("|rYou can't describe oblivion.|n")
if not obj:
return
desc = self.args
if obj.access(caller, "edit"):
obj.db.desc = desc
caller.msg("The description was set on %s." % obj.get_display_name(caller))
else:
caller.msg("You don't have permission to edit the description of %s." % obj.key)
class CmdDestroy(COMMAND_DEFAULT_CLASS):
"""
permanently delete objects
Usage:
@destroy[/switches] [obj, obj2, obj3, [dbref-dbref], ...]
switches:
override - The @destroy command will usually avoid accidentally
destroying account objects. This switch overrides this safety.
force - destroy without confirmation.
examples:
@destroy house, roof, door, 44-78
@destroy 5-10, flower, 45
@destroy/force north
Destroys one or many objects. If dbrefs are used, a range to delete can be
given, e.g. 4-10. Also the end points will be deleted. This command
displays a confirmation before destroying, to make sure of your choice.
You can specify the /force switch to bypass this confirmation.
"""
key = "@destroy"
aliases = ["@delete", "@del"]
locks = "cmd:perm(destroy) or perm(Builder)"
help_category = "Building"
confirm = True # set to False to always bypass confirmation
default_confirm = 'yes' # what to assume if just pressing enter (yes/no)
def func(self):
"""Implements the command."""
caller = self.caller
delete = True
if not self.args or not self.lhslist:
caller.msg("Usage: @destroy[/switches] [obj, obj2, obj3, [dbref-dbref],...]")
delete = False
def delobj(obj):
# helper function for deleting a single object
string = ""
if not obj.pk:
string = "\nObject %s was already deleted." % obj.db_key
else:
objname = obj.name
if not (obj.access(caller, "control") or obj.access(caller, 'delete')):
return "\nYou don't have permission to delete %s." % objname
if obj.account and 'override' not in self.switches:
return "\nObject %s is controlled by an active account. Use /override to delete anyway." % objname
if obj.dbid == int(settings.DEFAULT_HOME.lstrip("#")):
return "\nYou are trying to delete |c%s|n, which is set as DEFAULT_HOME. " \
"Re-point settings.DEFAULT_HOME to another " \
"object before continuing." % objname
had_exits = hasattr(obj, "exits") and obj.exits
had_objs = hasattr(obj, "contents") and any(obj for obj in obj.contents
if not (hasattr(obj, "exits") and obj not in obj.exits))
# do the deletion
okay = obj.delete()
if not okay:
string += "\nERROR: %s not deleted, probably because delete() returned False." % objname
else:
string += "\n%s was destroyed." % objname
if had_exits:
string += " Exits to and from %s were destroyed as well." % objname
if had_objs:
string += " Objects inside %s were moved to their homes." % objname
return string
objs = []
for objname in self.lhslist:
if not delete:
continue
if '-' in objname:
# might be a range of dbrefs
dmin, dmax = [utils.dbref(part, reqhash=False)
for part in objname.split('-', 1)]
if dmin and dmax:
for dbref in range(int(dmin), int(dmax + 1)):
obj = caller.search("#" + str(dbref))
if obj:
objs.append(obj)
continue
else:
obj = caller.search(objname)
else:
obj = caller.search(objname)
if obj is None:
self.caller.msg(" (Objects to destroy must either be local or specified with a unique #dbref.)")
elif obj not in objs:
objs.append(obj)
if objs and ("force" not in self.switches and type(self).confirm):
confirm = "Are you sure you want to destroy "
if len(objs) == 1:
confirm += objs[0].get_display_name(caller)
elif len(objs) < 5:
confirm += ", ".join([obj.get_display_name(caller) for obj in objs])
else:
confirm += ", ".join(["#{}".format(obj.id) for obj in objs])
confirm += " [yes]/no?" if self.default_confirm == 'yes' else " yes/[no]"
answer = ""
while answer.strip().lower() not in ("y", "yes", "n", "no"):
answer = yield(confirm)
answer = self.default_confirm if answer == '' else answer
if answer.strip().lower() in ("n", "no"):
caller.msg("Cancelled: no object was destroyed.")
delete = False
if delete:
results = []
for obj in objs:
results.append(delobj(obj))
if results:
caller.msg("".join(results).strip())
class CmdDig(ObjManipCommand):
"""
build new rooms and connect them to the current location
Usage:
@dig[/switches] <roomname>[;alias;alias...][:typeclass]
[= <exit_to_there>[;alias][:typeclass]]
[, <exit_to_here>[;alias][:typeclass]]
Switches:
tel or teleport - move yourself to the new room
Examples:
@dig kitchen = north;n, south;s
@dig house:myrooms.MyHouseTypeclass
@dig sheer cliff;cliff;sheer = climb up, climb down
This command is a convenient way to build rooms quickly; it creates the
new room and you can optionally set up exits back and forth between your
current room and the new one. You can add as many aliases as you
like to the name of the room and the exits in question; an example
would be 'north;no;n'.
"""
key = "@dig"
locks = "cmd:perm(dig) or perm(Builder)"
help_category = "Building"
# lockstring of newly created rooms, for easy overloading.
# Will be formatted with the {id} of the creating object.
new_room_lockstring = "control:id({id}) or perm(Admin); " \
"delete:id({id}) or perm(Admin); " \
"edit:id({id}) or perm(Admin)"
def func(self):
"""Do the digging. Inherits variables from ObjManipCommand.parse()"""
caller = self.caller
if not self.lhs:
string = "Usage: @dig[/teleport] <roomname>[;alias;alias...]" \
"[:parent] [= <exit_there>"
string += "[;alias;alias..][:parent]] "
string += "[, <exit_back_here>[;alias;alias..][:parent]]"
caller.msg(string)
return
room = self.lhs_objs[0]
if not room["name"]:
caller.msg("You must supply a new room name.")
return
location = caller.location
# Create the new room
typeclass = room['option']
if not typeclass:
typeclass = settings.BASE_ROOM_TYPECLASS
# create room
new_room = create.create_object(typeclass, room["name"],
aliases=room["aliases"],
report_to=caller)
lockstring = self.new_room_lockstring.format(id=caller.id)
new_room.locks.add(lockstring)
alias_string = ""
if new_room.aliases.all():
alias_string = " (%s)" % ", ".join(new_room.aliases.all())
room_string = "Created room %s(%s)%s of type %s." % (
new_room, new_room.dbref, alias_string, typeclass)
# create exit to room
exit_to_string = ""
exit_back_string = ""
if self.rhs_objs:
to_exit = self.rhs_objs[0]
if not to_exit["name"]:
exit_to_string = "\nNo exit created to new room."
elif not location:
exit_to_string = "\nYou cannot create an exit from a None-location."
else:
# Build the exit to the new room from the current one
typeclass = to_exit["option"]
if not typeclass:
typeclass = settings.BASE_EXIT_TYPECLASS
new_to_exit = create.create_object(typeclass, to_exit["name"],
location,
aliases=to_exit["aliases"],
locks=lockstring,
destination=new_room,
report_to=caller)
alias_string = ""
if new_to_exit.aliases.all():
alias_string = " (%s)" % ", ".join(new_to_exit.aliases.all())
exit_to_string = "\nCreated Exit from %s to %s: %s(%s)%s."
exit_to_string = exit_to_string % (location.name,
new_room.name,
new_to_exit,
new_to_exit.dbref,
alias_string)
# Create exit back from new room
if len(self.rhs_objs) > 1:
# Building the exit back to the current room
back_exit = self.rhs_objs[1]
if not back_exit["name"]:
exit_back_string = "\nNo back exit created."
elif not location:
exit_back_string = "\nYou cannot create an exit back to a None-location."
else:
typeclass = back_exit["option"]
if not typeclass:
typeclass = settings.BASE_EXIT_TYPECLASS
new_back_exit = create.create_object(typeclass,
back_exit["name"],
new_room,
aliases=back_exit["aliases"],
locks=lockstring,
destination=location,
report_to=caller)
alias_string = ""
if new_back_exit.aliases.all():
alias_string = " (%s)" % ", ".join(new_back_exit.aliases.all())
exit_back_string = "\nCreated Exit back from %s to %s: %s(%s)%s."
exit_back_string = exit_back_string % (new_room.name,
location.name,
new_back_exit,
new_back_exit.dbref,
alias_string)
caller.msg("%s%s%s" % (room_string, exit_to_string, exit_back_string))
if new_room and ('teleport' in self.switches or "tel" in self.switches):
caller.move_to(new_room)
class CmdTunnel(COMMAND_DEFAULT_CLASS):
"""
create new rooms in cardinal directions only
Usage:
@tunnel[/switch] <direction>[:typeclass] [= <roomname>[;alias;alias;...][:typeclass]]
Switches:
oneway - do not create an exit back to the current location
tel - teleport to the newly created room
Example:
@tunnel n
@tunnel n = house;mike's place;green building
This is a simple way to build using pre-defined directions:
|wn,ne,e,se,s,sw,w,nw|n (north, northeast etc)
|wu,d|n (up and down)
|wi,o|n (in and out)
The full names (north, in, southwest, etc) will always be put as
main name for the exit, using the abbreviation as an alias (so an
exit will always be able to be used with both "north" as well as
"n" for example). Opposite directions will automatically be
created back from the new room unless the /oneway switch is given.
For more flexibility and power in creating rooms, use @dig.
"""
key = "@tunnel"
aliases = ["@tun"]
locks = "cmd: perm(tunnel) or perm(Builder)"
help_category = "Building"
# store the direction, full name and its opposite
directions = {"n": ("north", "s"),
"ne": ("northeast", "sw"),
"e": ("east", "w"),
"se": ("southeast", "nw"),
"s": ("south", "n"),
"sw": ("southwest", "ne"),
"w": ("west", "e"),
"nw": ("northwest", "se"),
"u": ("up", "d"),
"d": ("down", "u"),
"i": ("in", "o"),
"o": ("out", "i")}
def func(self):
"""Implements the tunnel command"""
if not self.args or not self.lhs:
string = "Usage: @tunnel[/switch] <direction>[:typeclass] [= <roomname>" \
"[;alias;alias;...][:typeclass]]"
self.caller.msg(string)
return
# If we get a typeclass, we need to get just the exitname
exitshort = self.lhs.split(":")[0]
if exitshort not in self.directions:
string = "@tunnel can only understand the following directions: %s." % ",".join(
sorted(self.directions.keys()))
string += "\n(use @dig for more freedom)"
self.caller.msg(string)
return
# retrieve all input and parse it
exitname, backshort = self.directions[exitshort]
backname = self.directions[backshort][0]
# if we recieved a typeclass for the exit, add it to the alias(short name)
if ":" in self.lhs:
# limit to only the first : character
exit_typeclass = ":" + self.lhs.split(":", 1)[-1]
# exitshort and backshort are the last part of the exit strings,
# so we add our typeclass argument after
exitshort += exit_typeclass
backshort += exit_typeclass
roomname = "Some place"
if self.rhs:
roomname = self.rhs # this may include aliases; that's fine.
telswitch = ""
if "tel" in self.switches:
telswitch = "/teleport"
backstring = ""
if "oneway" not in self.switches:
backstring = ", %s;%s" % (backname, backshort)
# build the string we will use to call @dig
digstring = "@dig%s %s = %s;%s%s" % (telswitch, roomname,
exitname, exitshort, backstring)
self.execute_cmd(digstring)
class CmdLink(COMMAND_DEFAULT_CLASS):
"""
link existing rooms together with exits
Usage:
@link[/switches] <object> = <target>
@link[/switches] <object> =
@link[/switches] <object>
Switch:
twoway - connect two exits. For this to work, BOTH <object>
and <target> must be exit objects.
If <object> is an exit, set its destination to <target>. Two-way operation
instead sets the destination to the *locations* of the respective given
arguments.
The second form (a lone =) sets the destination to None (same as
the @unlink command) and the third form (without =) just shows the
currently set destination.
"""
key = "@link"
locks = "cmd:perm(link) or perm(Builder)"
help_category = "Building"
def func(self):
"""Perform the link"""
caller = self.caller
if not self.args:
caller.msg("Usage: @link[/twoway] <object> = <target>")
return
object_name = self.lhs
# get object
obj = caller.search(object_name, global_search=True)
if not obj:
return
if self.rhs:
# this means a target name was given
target = caller.search(self.rhs, global_search=True)
if not target:
return
string = ""
note = "Note: %s(%s) did not have a destination set before. Make sure you linked the right thing."
if not obj.destination:
string = note % (obj.name, obj.dbref)
if "twoway" in self.switches:
if not (target.location and obj.location):
string = "To create a two-way link, %s and %s must both have a location" % (obj, target)
string += " (i.e. they cannot be rooms, but should be exits)."
self.caller.msg(string)
return
if not target.destination:
string += note % (target.name, target.dbref)
obj.destination = target.location
target.destination = obj.location
string += "\nLink created %s (in %s) <-> %s (in %s) (two-way)." % (
obj.name, obj.location, target.name, target.location)
else:
obj.destination = target
string += "\nLink created %s -> %s (one way)." % (obj.name, target)
elif self.rhs is None:
# this means that no = was given (otherwise rhs
# would have been an empty string). So we inspect
# the home/destination on object
dest = obj.destination
if dest:
string = "%s is an exit to %s." % (obj.name, dest.name)
else:
string = "%s is not an exit. Its home location is %s." % (obj.name, obj.home)
else:
# We gave the command @link 'obj = ' which means we want to
# clear destination.
if obj.destination:
obj.destination = None
string = "Former exit %s no longer links anywhere." % obj.name
else:
string = "%s had no destination to unlink." % obj.name
# give feedback
caller.msg(string.strip())
class CmdUnLink(CmdLink):
"""
remove exit-connections between rooms
Usage:
@unlink <Object>
Unlinks an object, for example an exit, disconnecting
it from whatever it was connected to.
"""
# this is just a child of CmdLink
key = "@unlink"
locks = "cmd:perm(unlink) or perm(Builder)"
help_key = "Building"
def func(self):
"""
All we need to do here is to set the right command
and call func in CmdLink
"""
caller = self.caller
if not self.args:
caller.msg("Usage: @unlink <object>")
return
# This mimics '@link <obj> = ' which is the same as @unlink
self.rhs = ""
# call the @link functionality
super(CmdUnLink, self).func()
class CmdSetHome(CmdLink):
"""
set an object's home location
Usage:
@home <obj> [= <home_location>]
The "home" location is a "safety" location for objects; they
will be moved there if their current location ceases to exist. All
objects should always have a home location for this reason.
It is also a convenient target of the "home" command.
If no location is given, just view the object's home location.
"""
key = "@sethome"
locks = "cmd:perm(@home) or perm(Builder)"
help_category = "Building"
def func(self):
"""implement the command"""
if not self.args:
string = "Usage: @home <obj> [= <home_location>]"
self.caller.msg(string)
return
obj = self.caller.search(self.lhs, global_search=True)
if not obj:
return
if not self.rhs:
# just view
home = obj.home
if not home:
string = "This object has no home location set!"
else:
string = "%s's current home is %s(%s)." % (obj, home,
home.dbref)
else:
# set a home location
new_home = self.caller.search(self.rhs, global_search=True)
if not new_home:
return
old_home = obj.home
obj.home = new_home
if old_home:
string = "%s's home location was changed from %s(%s) to %s(%s)." % (
obj, old_home, old_home.dbref, new_home, new_home.dbref)
else:
string = "%s' home location was set to %s(%s)." % (obj, new_home, new_home.dbref)
self.caller.msg(string)
class CmdListCmdSets(COMMAND_DEFAULT_CLASS):
"""
list command sets defined on an object
Usage:
@cmdsets <obj>
This displays all cmdsets assigned
to a user. Defaults to yourself.
"""
key = "@cmdsets"
aliases = "@listcmsets"
locks = "cmd:perm(listcmdsets) or perm(Builder)"
help_category = "Building"
def func(self):
"""list the cmdsets"""
caller = self.caller
if self.arglist:
obj = caller.search(self.arglist[0])
if not obj:
return
else:
obj = caller
string = "%s" % obj.cmdset
caller.msg(string)
class CmdName(ObjManipCommand):
"""
change the name and/or aliases of an object
Usage:
@name <obj> = <newname>;alias1;alias2
Rename an object to something new. Use *obj to
rename an account.
"""
key = "@name"
aliases = ["@rename"]
locks = "cmd:perm(rename) or perm(Builder)"
help_category = "Building"
def func(self):
"""change the name"""
caller = self.caller
if not self.args:
caller.msg("Usage: @name <obj> = <newname>[;alias;alias;...]")
return
obj = None
if self.lhs_objs:
objname = self.lhs_objs[0]['name']
if objname.startswith("*"):
# account mode
obj = caller.account.search(objname.lstrip("*"))
if obj:
if self.rhs_objs[0]['aliases']:
caller.msg("Accounts can't have aliases.")
return
newname = self.rhs
if not newname:
caller.msg("No name defined!")
return
if not (obj.access(caller, "control") or obj.access(caller, "edit")):
caller.msg("You don't have right to edit this account %s." % obj)
return
obj.username = newname
obj.save()
caller.msg("Account's name changed to '%s'." % newname)
return
# object search, also with *
obj = caller.search(objname)
if not obj:
return
if self.rhs_objs:
newname = self.rhs_objs[0]['name']
aliases = self.rhs_objs[0]['aliases']
else:
newname = self.rhs
aliases = None
if not newname and not aliases:
caller.msg("No names or aliases defined!")
return
if not (obj.access(caller, "control") or obj.access(caller, "edit")):
caller.msg("You don't have the right to edit %s." % obj)
return
# change the name and set aliases:
if newname:
obj.name = newname
astring = ""
if aliases:
[obj.aliases.add(alias) for alias in aliases]
astring = " (%s)" % (", ".join(aliases))
# fix for exits - we need their exit-command to change name too
if obj.destination:
obj.flush_from_cache(force=True)
caller.msg("Object's name changed to '%s'%s." % (newname, astring))
class CmdOpen(ObjManipCommand):
"""
open a new exit from the current room
Usage:
@open <new exit>[;alias;alias..][:typeclass] [,<return exit>[;alias;..][:typeclass]]] = <destination>
Handles the creation of exits. If a destination is given, the exit
will point there. The <return exit> argument sets up an exit at the
destination leading back to the current room. Destination name
can be given both as a #dbref and a name, if that name is globally
unique.
"""
key = "@open"
locks = "cmd:perm(open) or perm(Builder)"
help_category = "Building"
# a custom member method to chug out exits and do checks
def create_exit(self, exit_name, location, destination,
exit_aliases=None, typeclass=None):
"""
Helper function to avoid code duplication.
At this point we know destination is a valid location
"""
caller = self.caller
string = ""
# check if this exit object already exists at the location.
# we need to ignore errors (so no automatic feedback)since we
# have to know the result of the search to decide what to do.
exit_obj = caller.search(exit_name, location=location, quiet=True, exact=True)
if len(exit_obj) > 1:
# give error message and return
caller.search(exit_name, location=location, exact=True)
return None
if exit_obj:
exit_obj = exit_obj[0]
if not exit_obj.destination:
# we are trying to link a non-exit
string = "'%s' already exists and is not an exit!\nIf you want to convert it "
string += "to an exit, you must assign an object to the 'destination' property first."
caller.msg(string % exit_name)
return None
# we are re-linking an old exit.
old_destination = exit_obj.destination
if old_destination:
string = "Exit %s already exists." % exit_name
if old_destination.id != destination.id:
# reroute the old exit.
exit_obj.destination = destination
if exit_aliases:
[exit_obj.aliases.add(alias) for alias in exit_aliases]
string += " Rerouted its old destination '%s' to '%s' and changed aliases." % (
old_destination.name, destination.name)
else:
string += " It already points to the correct place."
else:
# exit does not exist before. Create a new one.
if not typeclass:
typeclass = settings.BASE_EXIT_TYPECLASS
exit_obj = create.create_object(typeclass,
key=exit_name,
location=location,
aliases=exit_aliases,
report_to=caller)
if exit_obj:
# storing a destination is what makes it an exit!
exit_obj.destination = destination
string = "" if not exit_aliases else " (aliases: %s)" % (
", ".join([str(e) for e in exit_aliases]))
string = "Created new Exit '%s' from %s to %s%s." % (
exit_name, location.name, destination.name, string)
else:
string = "Error: Exit '%s' not created." % exit_name
# emit results
caller.msg(string)
return exit_obj
def func(self):
"""
This is where the processing starts.
Uses the ObjManipCommand.parser() for pre-processing
as well as the self.create_exit() method.
"""
caller = self.caller
if not self.args or not self.rhs:
string = "Usage: @open <new exit>[;alias...][:typeclass][,<return exit>[;alias..][:typeclass]]] "
string += "= <destination>"
caller.msg(string)
return
# We must have a location to open an exit
location = caller.location
if not location:
caller.msg("You cannot create an exit from a None-location.")
return
# obtain needed info from cmdline
exit_name = self.lhs_objs[0]['name']
exit_aliases = self.lhs_objs[0]['aliases']
exit_typeclass = self.lhs_objs[0]['option']
dest_name = self.rhs
# first, check so the destination exists.
destination = caller.search(dest_name, global_search=True)
if not destination:
return
# Create exit
ok = self.create_exit(exit_name,
location,
destination,
exit_aliases,
exit_typeclass)
if not ok:
# an error; the exit was not created, so we quit.
return
# Create back exit, if any
if len(self.lhs_objs) > 1:
back_exit_name = self.lhs_objs[1]['name']
back_exit_aliases = self.lhs_objs[1]['aliases']
back_exit_typeclass = self.lhs_objs[1]['option']
self.create_exit(back_exit_name,
destination,
location,
back_exit_aliases,
back_exit_typeclass)
def _convert_from_string(cmd, strobj):
"""
Converts a single object in *string form* to its equivalent python
type.
Python earlier than 2.6:
Handles floats, ints, and limited nested lists and dicts
(can't handle lists in a dict, for example, this is mainly due to
the complexity of parsing this rather than any technical difficulty -
if there is a need for @set-ing such complex structures on the
command line we might consider adding it).
Python 2.6 and later:
Supports all Python structures through literal_eval as long as they
are valid Python syntax. If they are not (such as [test, test2], ie
without the quotes around the strings), the entire structure will
be converted to a string and a warning will be given.
We need to convert like this since all data being sent over the
telnet connection by the Account is text - but we will want to
store it as the "real" python type so we can do convenient
comparisons later (e.g. obj.db.value = 2, if value is stored as a
string this will always fail).
"""
def rec_convert(obj):
"""
Helper function of recursive conversion calls. This is only
used for Python <=2.5. After that literal_eval is available.
"""
# simple types
try:
return int(obj)
except ValueError:
# obj cannot be converted to int - that's fine
pass
try:
return float(obj)
except ValueError:
# obj cannot be converted to float - that's fine
pass
# iterables
if obj.startswith('[') and obj.endswith(']'):
"A list. Traverse recursively."
return [rec_convert(val) for val in obj[1:-1].split(',')]
if obj.startswith('(') and obj.endswith(')'):
"A tuple. Traverse recursively."
return tuple([rec_convert(val) for val in obj[1:-1].split(',')])
if obj.startswith('{') and obj.endswith('}') and ':' in obj:
"A dict. Traverse recursively."
return dict([(rec_convert(pair.split(":", 1)[0]),
rec_convert(pair.split(":", 1)[1]))
for pair in obj[1:-1].split(',') if ":" in pair])
# if nothing matches, return as-is
return obj
if _LITERAL_EVAL:
# Use literal_eval to parse python structure exactly.
try:
return _LITERAL_EVAL(strobj)
except (SyntaxError, ValueError):
# treat as string
strobj = utils.to_str(strobj)
string = "|RNote: name \"|r%s|R\" was converted to a string. " \
"Make sure this is acceptable." % strobj
cmd.caller.msg(string)
return strobj
else:
# fall back to old recursive solution (does not support
# nested lists/dicts)
return rec_convert(strobj.strip())
class CmdSetAttribute(ObjManipCommand):
"""
set attribute on an object or account
Usage:
@set <obj>/<attr> = <value>
@set <obj>/<attr> =
@set <obj>/<attr>
@set *<account>/attr = <value>
Switch:
edit: Open the line editor (string values only)
Sets attributes on objects. The second form clears
a previously set attribute while the last form
inspects the current value of the attribute
(if any).
The most common data to save with this command are strings and
numbers. You can however also set Python primitives such as lists,
dictionaries and tuples on objects (this might be important for
the functionality of certain custom objects). This is indicated
by you starting your value with one of |c'|n, |c"|n, |c(|n, |c[|n
or |c{ |n.
Note that you should leave a space after starting a dictionary ('{ ')
so as to not confuse the dictionary start with a colour code like \{g.
Remember that if you use Python primitives like this, you must
write proper Python syntax too - notably you must include quotes
around your strings or you will get an error.
"""
key = "@set"
locks = "cmd:perm(set) or perm(Builder)"
help_category = "Building"
def check_obj(self, obj):
"""
This may be overridden by subclasses in case restrictions need to be
placed on whether certain objects can have attributes set by certain
accounts.
This function is expected to display its own error message.
Returning False will abort the command.
"""
return True
def check_attr(self, obj, attr_name):
"""
This may be overridden by subclasses in case restrictions need to be
placed on what attributes can be set by who beyond the normal lock.
This functions is expected to display its own error message. It is
run once for every attribute that is checked, blocking only those
attributes which are not permitted and letting the others through.
"""
return attr_name
def view_attr(self, obj, attr):
"""
Look up the value of an attribute and return a string displaying it.
"""
if obj.attributes.has(attr):
return "\nAttribute %s/%s = %s" % (obj.name, attr,
obj.attributes.get(attr))
else:
return "\n%s has no attribute '%s'." % (obj.name, attr)
def rm_attr(self, obj, attr):
"""
Remove an attribute from the object, and report back.
"""
if obj.attributes.has(attr):
val = obj.attributes.has(attr)
obj.attributes.remove(attr)
return "\nDeleted attribute '%s' (= %s) from %s." % (attr, val, obj.name)
else:
return "\n%s has no attribute '%s'." % (obj.name, attr)
def set_attr(self, obj, attr, value):
try:
verb = "Modified" if obj.attributes.has(attr) else "Created"
obj.attributes.add(attr, value)
return "\n%s attribute %s/%s = %s" % (verb, obj.name, attr, repr(value))
except SyntaxError:
# this means literal_eval tried to parse a faulty string
return ("\n|RCritical Python syntax error in your value. Only "
"primitive Python structures are allowed.\nYou also "
"need to use correct Python syntax. Remember especially "
"to put quotes around all strings inside lists and "
"dicts.|n")
def edit_handler(self, obj, attr):
"""Activate the line editor"""
def load(caller):
"""Called for the editor to load the buffer"""
old_value = obj.attributes.get(attr)
if old_value is not None and not isinstance(old_value, basestring):
typ = type(old_value).__name__
self.caller.msg("|RWARNING! Saving this buffer will overwrite the "
"current attribute (of type %s) with a string!|n" % typ)
return str(old_value)
return old_value
def save(caller, buf):
"""Called when editor saves its buffer."""
obj.attributes.add(attr, buf)
caller.msg("Saved Attribute %s." % attr)
# start the editor
EvEditor(self.caller, load, save, key="%s/%s" % (obj, attr))
def func(self):
"""Implement the set attribute - a limited form of @py."""
caller = self.caller
if not self.args:
caller.msg("Usage: @set obj/attr = value. Use empty value to clear.")
return
# get values prepared by the parser
value = self.rhs
objname = self.lhs_objattr[0]['name']
attrs = self.lhs_objattr[0]['attrs']
if objname.startswith('*'):
obj = caller.search_account(objname.lstrip('*'))
else:
obj = caller.search(objname)
if not obj:
return
if not self.check_obj(obj):
return
result = []
if "edit" in self.switches:
# edit in the line editor
if len(attrs) > 1:
caller.msg("The Line editor can only be applied "
"to one attribute at a time.")
return
self.edit_handler(obj, attrs[0])
return
if not value:
if self.rhs is None:
# no = means we inspect the attribute(s)
if not attrs:
attrs = [attr.key for attr in obj.attributes.all()]
for attr in attrs:
if not self.check_attr(obj, attr):
continue
result.append(self.view_attr(obj, attr))
# we view it without parsing markup.
self.caller.msg("".join(result).strip(), options={"raw": True})
return
else:
# deleting the attribute(s)
for attr in attrs:
if not self.check_attr(obj, attr):
continue
result.append(self.rm_attr(obj, attr))
else:
# setting attribute(s). Make sure to convert to real Python type before saving.
for attr in attrs:
if not self.check_attr(obj, attr):
continue
value = _convert_from_string(self, value)
result.append(self.set_attr(obj, attr, value))
# send feedback
caller.msg("".join(result).strip('\n'))
class CmdTypeclass(COMMAND_DEFAULT_CLASS):
"""
set or change an object's typeclass
Usage:
@typeclass[/switch] <object> [= typeclass.path]
@type ''
@parent ''
@swap - this is a shorthand for using /force/reset flags.
@update - this is a shorthand for using the /force/reload flag.
Switch:
show - display the current typeclass of object (default)
update - *only* re-run at_object_creation on this object
meaning locks or other properties set later may remain.
reset - clean out *all* the attributes and properties on the
object - basically making this a new clean object.
force - change to the typeclass also if the object
already has a typeclass of the same name.
Example:
@type button = examples.red_button.RedButton
If the typeclass_path is not given, the current object's
typeclass is assumed.
View or set an object's typeclass. If setting, the creation hooks
of the new typeclass will be run on the object. If you have
clashing properties on the old class, use /reset. By default you
are protected from changing to a typeclass of the same name as the
one you already have - use /force to override this protection.
The given typeclass must be identified by its location using
python dot-notation pointing to the correct module and class. If
no typeclass is given (or a wrong typeclass is given). Errors in
the path or new typeclass will lead to the old typeclass being
kept. The location of the typeclass module is searched from the
default typeclass directory, as defined in the server settings.
"""
key = "@typeclass"
aliases = ["@type", "@parent", "@swap", "@update"]
locks = "cmd:perm(typeclass) or perm(Builder)"
help_category = "Building"
def func(self):
"""Implements command"""
caller = self.caller
if not self.args:
caller.msg("Usage: %s <object> [= typeclass]" % self.cmdstring)
return
# get object to swap on
obj = caller.search(self.lhs)
if not obj:
return
if not hasattr(obj, "__dbclass__"):
string = "%s is not a typed object." % obj.name
caller.msg(string)
return
new_typeclass = self.rhs or obj.path
if "show" in self.switches:
string = "%s's current typeclass is %s." % (obj.name, obj.__class__)
caller.msg(string)
return
if self.cmdstring == "@swap":
self.switches.append("force")
self.switches.append("reset")
elif self.cmdstring == "@update":
self.switches.append("force")
self.switches.append("update")
if not (obj.access(caller, "control") or obj.access(caller, 'edit')):
caller.msg("You are not allowed to do that.")
return
if not hasattr(obj, 'swap_typeclass'):
caller.msg("This object cannot have a type at all!")
return
is_same = obj.is_typeclass(new_typeclass, exact=True)
if is_same and 'force' not in self.switches:
string = "%s already has the typeclass '%s'. Use /force to override." % (obj.name, new_typeclass)
else:
update = "update" in self.switches
reset = "reset" in self.switches
hooks = "at_object_creation" if update else "all"
old_typeclass_path = obj.typeclass_path
# we let this raise exception if needed
obj.swap_typeclass(new_typeclass, clean_attributes=reset,
clean_cmdsets=reset, run_start_hooks=hooks)
if is_same:
string = "%s updated its existing typeclass (%s).\n" % (obj.name, obj.path)
else:
string = "%s changed typeclass from %s to %s.\n" % (obj.name,
old_typeclass_path,
obj.typeclass_path)
if update:
string += "Only the at_object_creation hook was run (update mode)."
else:
string += "All object creation hooks were run."
if reset:
string += " All old attributes where deleted before the swap."
else:
string += " Attributes set before swap were not removed."
caller.msg(string)
class CmdWipe(ObjManipCommand):
"""
clear all attributes from an object
Usage:
@wipe <object>[/<attr>[/<attr>...]]
Example:
@wipe box
@wipe box/colour
Wipes all of an object's attributes, or optionally only those
matching the given attribute-wildcard search string.
"""
key = "@wipe"
locks = "cmd:perm(wipe) or perm(Builder)"
help_category = "Building"
def func(self):
"""
inp is the dict produced in ObjManipCommand.parse()
"""
caller = self.caller
if not self.args:
caller.msg("Usage: @wipe <object>[/<attr>/<attr>...]")
return
# get the attributes set by our custom parser
objname = self.lhs_objattr[0]['name']
attrs = self.lhs_objattr[0]['attrs']
obj = caller.search(objname)
if not obj:
return
if not (obj.access(caller, "control") or obj.access(caller, 'edit')):
caller.msg("You are not allowed to do that.")
return
if not attrs:
# wipe everything
obj.attributes.clear()
string = "Wiped all attributes on %s." % obj.name
else:
for attrname in attrs:
obj.attributes.remove(attrname)
string = "Wiped attributes %s on %s."
string = string % (",".join(attrs), obj.name)
caller.msg(string)
class CmdLock(ObjManipCommand):
"""
assign a lock definition to an object
Usage:
@lock <object or *account>[ = <lockstring>]
or
@lock[/switch] <object or *account>/<access_type>
Switch:
del - delete given access type
view - view lock associated with given access type (default)
If no lockstring is given, shows all locks on
object.
Lockstring is of the form
access_type:[NOT] func1(args)[ AND|OR][ NOT] func2(args) ...]
Where func1, func2 ... valid lockfuncs with or without arguments.
Separator expressions need not be capitalized.
For example:
'get: id(25) or perm(Admin)'
The 'get' access_type is checked by the get command and will
an object locked with this string will only be possible to
pick up by Admins or by object with id=25.
You can add several access_types after one another by separating
them by ';', i.e:
'get:id(25);delete:perm(Builder)'
"""
key = "@lock"
aliases = ["@locks"]
locks = "cmd: perm(locks) or perm(Builder)"
help_category = "Building"
def func(self):
"""Sets up the command"""
caller = self.caller
if not self.args:
string = "@lock <object>[ = <lockstring>] or @lock[/switch] " \
"<object>/<access_type>"
caller.msg(string)
return
if '/' in self.lhs:
# call of the form @lock obj/access_type
objname, access_type = [p.strip() for p in self.lhs.split('/', 1)]
obj = None
if objname.startswith("*"):
obj = caller.search_account(objname.lstrip('*'))
if not obj:
obj = caller.search(objname)
if not obj:
return
if not (obj.access(caller, 'control') or obj.access(caller, "edit")):
caller.msg("You are not allowed to do that.")
return
lockdef = obj.locks.get(access_type)
if lockdef:
if 'del' in self.switches:
obj.locks.delete(access_type)
string = "deleted lock %s" % lockdef
else:
string = lockdef
else:
string = "%s has no lock of access type '%s'." % (obj, access_type)
caller.msg(string)
return
if self.rhs:
# we have a = separator, so we are assigning a new lock
if self.switches:
swi = ", ".join(self.switches)
caller.msg("Switch(es) |w%s|n can not be used with a "
"lock assignment. Use e.g. "
"|w@lock/del objname/locktype|n instead." % swi)
return
objname, lockdef = self.lhs, self.rhs
obj = None
if objname.startswith("*"):
obj = caller.search_account(objname.lstrip('*'))
if not obj:
obj = caller.search(objname)
if not obj:
return
if not (obj.access(caller, 'control') or obj.access(caller, "edit")):
caller.msg("You are not allowed to do that.")
return
ok = False
lockdef = re.sub(r"\'|\"", "", lockdef)
try:
ok = obj.locks.add(lockdef)
except LockException as e:
caller.msg(str(e))
if "cmd" in lockdef.lower() and \
inherits_from(obj, "evennia.objects.objects.DefaultExit"):
# special fix to update Exits since "cmd"-type locks won't
# update on them unless their cmdsets are rebuilt.
obj.at_init()
if ok:
caller.msg("Added lock '%s' to %s." % (lockdef, obj))
return
# if we get here, we are just viewing all locks on obj
obj = None
if self.lhs.startswith("*"):
obj = caller.search_account(self.lhs.lstrip("*"))
if not obj:
obj = caller.search(self.lhs)
if not obj:
return
if not (obj.access(caller, 'control') or obj.access(caller, "edit")):
caller.msg("You are not allowed to do that.")
return
caller.msg("\n".join(obj.locks.all()))
class CmdExamine(ObjManipCommand):
"""
get detailed information about an object
Usage:
examine [<object>[/attrname]]
examine [*<account>[/attrname]]
Switch:
account - examine an Account (same as adding *)
object - examine an Object (useful when OOC)
The examine command shows detailed game info about an
object and optionally a specific attribute on it.
If object is not specified, the current location is examined.
Append a * before the search string to examine an account.
"""
key = "@examine"
aliases = ["@ex", "exam"]
locks = "cmd:perm(examine) or perm(Builder)"
help_category = "Building"
arg_regex = r"(/\w+?(\s|$))|\s|$"
account_mode = False
def list_attribute(self, crop, attr, value):
"""
Formats a single attribute line.
"""
if crop:
if not isinstance(value, basestring):
value = utils.to_str(value, force_string=True)
value = utils.crop(value)
value = utils.to_unicode(value)
string = "\n %s = %s" % (attr, value)
string = raw(string)
return string
def format_attributes(self, obj, attrname=None, crop=True):
"""
Helper function that returns info about attributes and/or
non-persistent data stored on object
"""
if attrname:
db_attr = [(attrname, obj.attributes.get(attrname))]
try:
ndb_attr = [(attrname, object.__getattribute__(obj.ndb, attrname))]
except Exception:
ndb_attr = None
else:
db_attr = [(attr.key, attr.value) for attr in obj.db_attributes.all()]
try:
ndb_attr = obj.nattributes.all(return_tuples=True)
except Exception:
ndb_attr = None
string = ""
if db_attr and db_attr[0]:
string += "\n|wPersistent attributes|n:"
for attr, value in db_attr:
string += self.list_attribute(crop, attr, value)
if ndb_attr and ndb_attr[0]:
string += "\n|wNon-Persistent attributes|n:"
for attr, value in ndb_attr:
string += self.list_attribute(crop, attr, value)
return string
def format_output(self, obj, avail_cmdset):
"""
Helper function that creates a nice report about an object.
returns a string.
"""
string = "\n|wName/key|n: |c%s|n (%s)" % (obj.name, obj.dbref)
if hasattr(obj, "aliases") and obj.aliases.all():
string += "\n|wAliases|n: %s" % (", ".join(utils.make_iter(str(obj.aliases))))
if hasattr(obj, "sessions") and obj.sessions.all():
string += "\n|wSession id(s)|n: %s" % (", ".join("#%i" % sess.sessid
for sess in obj.sessions.all()))
if hasattr(obj, "email") and obj.email:
string += "\n|wEmail|n: |c%s|n" % obj.email
if hasattr(obj, "has_account") and obj.has_account:
string += "\n|wAccount|n: |c%s|n" % obj.account.name
perms = obj.account.permissions.all()
if obj.account.is_superuser:
perms = ["<Superuser>"]
elif not perms:
perms = ["<None>"]
string += "\n|wAccount Perms|n: %s" % (", ".join(perms))
if obj.account.attributes.has("_quell"):
string += " |r(quelled)|n"
string += "\n|wTypeclass|n: %s (%s)" % (obj.typename,
obj.typeclass_path)
if hasattr(obj, "location"):
string += "\n|wLocation|n: %s" % obj.location
if obj.location:
string += " (#%s)" % obj.location.id
if hasattr(obj, "home"):
string += "\n|wHome|n: %s" % obj.home
if obj.home:
string += " (#%s)" % obj.home.id
if hasattr(obj, "destination") and obj.destination:
string += "\n|wDestination|n: %s" % obj.destination
if obj.destination:
string += " (#%s)" % obj.destination.id
perms = obj.permissions.all()
if perms:
perms_string = (", ".join(perms))
else:
perms_string = "<None>"
if obj.is_superuser:
perms_string += " [Superuser]"
string += "\n|wPermissions|n: %s" % perms_string
locks = str(obj.locks)
if locks:
locks_string = utils.fill("; ".join([lock for lock in locks.split(';')]), indent=6)
else:
locks_string = " Default"
string += "\n|wLocks|n:%s" % locks_string
if not (len(obj.cmdset.all()) == 1 and obj.cmdset.current.key == "_EMPTY_CMDSET"):
# all() returns a 'stack', so make a copy to sort.
stored_cmdsets = sorted(obj.cmdset.all(), key=lambda x: x.priority, reverse=True)
string += "\n|wStored Cmdset(s)|n:\n %s" % ("\n ".join("%s [%s] (%s, prio %s)" % (
cmdset.path, cmdset.key, cmdset.mergetype, cmdset.priority) for cmdset in stored_cmdsets
if cmdset.key != "_EMPTY_CMDSET"))
# this gets all components of the currently merged set
all_cmdsets = [(cmdset.key, cmdset) for cmdset in avail_cmdset.merged_from]
# we always at least try to add account- and session sets since these are ignored
# if we merge on the object level.
if hasattr(obj, "account") and obj.account:
all_cmdsets.extend([(cmdset.key, cmdset) for cmdset in obj.account.cmdset.all()])
if obj.sessions.count():
# if there are more sessions than one on objects it's because of multisession mode 3.
# we only show the first session's cmdset here (it is -in principle- possible that
# different sessions have different cmdsets but for admins who want such madness
# it is better that they overload with their own CmdExamine to handle it).
all_cmdsets.extend([(cmdset.key, cmdset) for cmdset in obj.account.sessions.all()[0].cmdset.all()])
else:
try:
# we have to protect this since many objects don't have sessions.
all_cmdsets.extend([(cmdset.key, cmdset)
for cmdset in obj.get_session(obj.sessions.get()).cmdset.all()])
except (TypeError, AttributeError):
# an error means we are merging an object without a session
pass
all_cmdsets = [cmdset for cmdset in dict(all_cmdsets).values()]
all_cmdsets.sort(key=lambda x: x.priority, reverse=True)
string += "\n|wMerged Cmdset(s)|n:\n %s" % ("\n ".join("%s [%s] (%s, prio %s)" % (
cmdset.path, cmdset.key, cmdset.mergetype, cmdset.priority) for cmdset in all_cmdsets))
# list the commands available to this object
avail_cmdset = sorted([cmd.key for cmd in avail_cmdset
if cmd.access(obj, "cmd")])
cmdsetstr = utils.fill(", ".join(avail_cmdset), indent=2)
string += "\n|wCommands available to %s (result of Merged CmdSets)|n:\n %s" % (obj.key, cmdsetstr)
if hasattr(obj, "scripts") and hasattr(obj.scripts, "all") and obj.scripts.all():
string += "\n|wScripts|n:\n %s" % obj.scripts
# add the attributes
string += self.format_attributes(obj)
# display Tags
tags_string = utils.fill(", ".join("%s[%s]" % (tag, category)
for tag, category in obj.tags.all(return_key_and_category=True)), indent=5)
if tags_string:
string += "\n|wTags[category]|n: %s" % tags_string.strip()
# add the contents
exits = []
pobjs = []
things = []
if hasattr(obj, "contents"):
for content in obj.contents:
if content.destination:
exits.append(content)
elif content.account:
pobjs.append(content)
else:
things.append(content)
if exits:
string += "\n|wExits|n: %s" % ", ".join(["%s(%s)" % (exit.name, exit.dbref) for exit in exits])
if pobjs:
string += "\n|wCharacters|n: %s" % ", ".join(["|c%s|n(%s)" % (pobj.name, pobj.dbref) for pobj in pobjs])
if things:
string += "\n|wContents|n: %s" % ", ".join(["%s(%s)" % (cont.name, cont.dbref) for cont in obj.contents
if cont not in exits and cont not in pobjs])
separator = "-" * _DEFAULT_WIDTH
# output info
return '%s\n%s\n%s' % (separator, string.strip(), separator)
def func(self):
"""Process command"""
caller = self.caller
def get_cmdset_callback(cmdset):
"""
We make use of the cmdhandeler.get_and_merge_cmdsets below. This
is an asynchronous function, returning a Twisted deferred.
So in order to properly use this we need use this callback;
it is called with the result of get_and_merge_cmdsets, whenever
that function finishes. Taking the resulting cmdset, we continue
to format and output the result.
"""
string = self.format_output(obj, cmdset)
self.msg(string.strip())
if not self.args:
# If no arguments are provided, examine the invoker's location.
if hasattr(caller, "location"):
obj = caller.location
if not obj.access(caller, 'examine'):
# If we don't have special info access, just look at the object instead.
self.msg(caller.at_look(obj))
return
# using callback for printing result whenever function returns.
get_and_merge_cmdsets(obj, self.session, self.account, obj, "object",
self.raw_string).addCallback(get_cmdset_callback)
else:
self.msg("You need to supply a target to examine.")
return
# we have given a specific target object
for objdef in self.lhs_objattr:
obj = None
obj_name = objdef['name']
obj_attrs = objdef['attrs']
self.account_mode = utils.inherits_from(caller, "evennia.accounts.accounts.DefaultAccount") or \
"account" in self.switches or obj_name.startswith('*')
if self.account_mode:
try:
obj = caller.search_account(obj_name.lstrip('*'))
except AttributeError:
# this means we are calling examine from an account object
obj = caller.search(obj_name.lstrip('*'), search_object='object' in self.switches)
else:
obj = caller.search(obj_name)
if not obj:
continue
if not obj.access(caller, 'examine'):
# If we don't have special info access, just look
# at the object instead.
self.msg(caller.at_look(obj))
continue
if obj_attrs:
for attrname in obj_attrs:
# we are only interested in specific attributes
caller.msg(self.format_attributes(obj, attrname, crop=False))
else:
if obj.sessions.count():
mergemode = "session"
elif self.account_mode:
mergemode = "account"
else:
mergemode = "object"
# using callback to print results whenever function returns.
get_and_merge_cmdsets(obj, self.session, self.account, obj, mergemode, self.raw_string).addCallback(get_cmdset_callback)
class CmdFind(COMMAND_DEFAULT_CLASS):
"""
search the database for objects
Usage:
@find[/switches] <name or dbref or *account> [= dbrefmin[-dbrefmax]]
Switches:
room - only look for rooms (location=None)
exit - only look for exits (destination!=None)
char - only look for characters (BASE_CHARACTER_TYPECLASS)
exact- only exact matches are returned.
Searches the database for an object of a particular name or exact #dbref.
Use *accountname to search for an account. The switches allows for
limiting object matches to certain game entities. Dbrefmin and dbrefmax
limits matches to within the given dbrefs range, or above/below if only
one is given.
"""
key = "@find"
aliases = "@search, @locate"
locks = "cmd:perm(find) or perm(Builder)"
help_category = "Building"
def func(self):
"""Search functionality"""
caller = self.caller
switches = self.switches
if not self.args:
caller.msg("Usage: @find <string> [= low [-high]]")
return
searchstring = self.lhs
low, high = 1, ObjectDB.objects.all().order_by("-id")[0].id
if self.rhs:
if "-" in self.rhs:
# also support low-high syntax
limlist = [part.lstrip("#").strip() for part in self.rhs.split("-", 1)]
else:
# otherwise split by space
limlist = [part.lstrip("#") for part in self.rhs.split(None, 1)]
if limlist and limlist[0].isdigit():
low = max(low, int(limlist[0]))
if len(limlist) > 1 and limlist[1].isdigit():
high = min(high, int(limlist[1]))
low = min(low, high)
high = max(low, high)
is_dbref = utils.dbref(searchstring)
is_account = searchstring.startswith("*")
restrictions = ""
if self.switches:
restrictions = ", %s" % (",".join(self.switches))
if is_dbref or is_account:
if is_dbref:
# a dbref search
result = caller.search(searchstring, global_search=True, quiet=True)
string = "|wExact dbref match|n(#%i-#%i%s):" % (low, high, restrictions)
else:
# an account search
searchstring = searchstring.lstrip("*")
result = caller.search_account(searchstring, quiet=True)
string = "|wMatch|n(#%i-#%i%s):" % (low, high, restrictions)
if "room" in switches:
result = result if inherits_from(result, ROOM_TYPECLASS) else None
if "exit" in switches:
result = result if inherits_from(result, EXIT_TYPECLASS) else None
if "char" in switches:
result = result if inherits_from(result, CHAR_TYPECLASS) else None
if not result:
string += "\n |RNo match found.|n"
elif not low <= int(result[0].id) <= high:
string += "\n |RNo match found for '%s' in #dbref interval.|n" % searchstring
else:
result = result[0]
string += "\n|g %s - %s|n" % (result.get_display_name(caller), result.path)
else:
# Not an account/dbref search but a wider search; build a queryset.
# Searchs for key and aliases
if "exact" in switches:
keyquery = Q(db_key__iexact=searchstring, id__gte=low, id__lte=high)
aliasquery = Q(db_tags__db_key__iexact=searchstring,
db_tags__db_tagtype__iexact="alias", id__gte=low, id__lte=high)
else:
keyquery = Q(db_key__istartswith=searchstring, id__gte=low, id__lte=high)
aliasquery = Q(db_tags__db_key__istartswith=searchstring,
db_tags__db_tagtype__iexact="alias", id__gte=low, id__lte=high)
results = ObjectDB.objects.filter(keyquery | aliasquery).distinct()
nresults = results.count()
if nresults:
# convert result to typeclasses.
results = [result for result in results]
if "room" in switches:
results = [obj for obj in results if inherits_from(obj, ROOM_TYPECLASS)]
if "exit" in switches:
results = [obj for obj in results if inherits_from(obj, EXIT_TYPECLASS)]
if "char" in switches:
results = [obj for obj in results if inherits_from(obj, CHAR_TYPECLASS)]
nresults = len(results)
# still results after type filtering?
if nresults:
if nresults > 1:
string = "|w%i Matches|n(#%i-#%i%s):" % (nresults, low, high, restrictions)
for res in results:
string += "\n |g%s - %s|n" % (res.get_display_name(caller), res.path)
else:
string = "|wOne Match|n(#%i-#%i%s):" % (low, high, restrictions)
string += "\n |g%s - %s|n" % (results[0].get_display_name(caller), results[0].path)
else:
string = "|wMatch|n(#%i-#%i%s):" % (low, high, restrictions)
string += "\n |RNo matches found for '%s'|n" % searchstring
# send result
caller.msg(string.strip())
class CmdTeleport(COMMAND_DEFAULT_CLASS):
"""
teleport object to another location
Usage:
@tel/switch [<object> =] <target location>
Examples:
@tel Limbo
@tel/quiet box Limbo
@tel/tonone box
Switches:
quiet - don't echo leave/arrive messages to the source/target
locations for the move.
intoexit - if target is an exit, teleport INTO
the exit object instead of to its destination
tonone - if set, teleport the object to a None-location. If this
switch is set, <target location> is ignored.
Note that the only way to retrieve
an object from a None location is by direct #dbref
reference. A puppeted object cannot be moved to None.
Teleports an object somewhere. If no object is given, you yourself
is teleported to the target location. """
key = "@tel"
aliases = "@teleport"
locks = "cmd:perm(teleport) or perm(Builder)"
help_category = "Building"
def func(self):
"""Performs the teleport"""
caller = self.caller
args = self.args
lhs, rhs = self.lhs, self.rhs
switches = self.switches
# setting switches
tel_quietly = "quiet" in switches
to_none = "tonone" in switches
if to_none:
# teleporting to None
if not args:
obj_to_teleport = caller
else:
obj_to_teleport = caller.search(lhs, global_search=True)
if not obj_to_teleport:
caller.msg("Did not find object to teleport.")
return
if obj_to_teleport.has_account:
caller.msg("Cannot teleport a puppeted object "
"(%s, puppeted by %s) to a None-location." % (
obj_to_teleport.key, obj_to_teleport.account))
return
caller.msg("Teleported %s -> None-location." % obj_to_teleport)
if obj_to_teleport.location and not tel_quietly:
obj_to_teleport.location.msg_contents("%s teleported %s into nothingness."
% (caller, obj_to_teleport),
exclude=caller)
obj_to_teleport.location = None
return
# not teleporting to None location
if not args and not to_none:
caller.msg("Usage: teleport[/switches] [<obj> =] <target_loc>|home")
return
if rhs:
obj_to_teleport = caller.search(lhs, global_search=True)
destination = caller.search(rhs, global_search=True)
else:
obj_to_teleport = caller
destination = caller.search(lhs, global_search=True)
if not obj_to_teleport:
caller.msg("Did not find object to teleport.")
return
if not destination:
caller.msg("Destination not found.")
return
if obj_to_teleport == destination:
caller.msg("You can't teleport an object inside of itself!")
return
if obj_to_teleport == destination.location:
caller.msg("You can't teleport an object inside something it holds!")
return
if obj_to_teleport.location and obj_to_teleport.location == destination:
caller.msg("%s is already at %s." % (obj_to_teleport, destination))
return
use_destination = True
if "intoexit" in self.switches:
use_destination = False
# try the teleport
if obj_to_teleport.move_to(destination, quiet=tel_quietly,
emit_to_obj=caller,
use_destination=use_destination):
if obj_to_teleport == caller:
caller.msg("Teleported to %s." % destination)
else:
caller.msg("Teleported %s -> %s." % (obj_to_teleport,
destination))
class CmdScript(COMMAND_DEFAULT_CLASS):
"""
attach a script to an object
Usage:
@script[/switch] <obj> [= script_path or <scriptkey>]
Switches:
start - start all non-running scripts on object, or a given script only
stop - stop all scripts on objects, or a given script only
If no script path/key is given, lists all scripts active on the given
object.
Script path can be given from the base location for scripts as given in
settings. If adding a new script, it will be started automatically
(no /start switch is needed). Using the /start or /stop switches on an
object without specifying a script key/path will start/stop ALL scripts on
the object.
"""
key = "@script"
aliases = "@addscript"
locks = "cmd:perm(script) or perm(Builder)"
help_category = "Building"
def func(self):
"""Do stuff"""
caller = self.caller
if not self.args:
string = "Usage: @script[/switch] <obj> [= script_path or <script key>]"
caller.msg(string)
return
if not self.lhs:
caller.msg("To create a global script you need |w@scripts/add <typeclass>|n.")
return
obj = caller.search(self.lhs)
if not obj:
return
result = []
if not self.rhs:
# no rhs means we want to operate on all scripts
scripts = obj.scripts.all()
if not scripts:
result.append("No scripts defined on %s." % obj.get_display_name(caller))
elif not self.switches:
# view all scripts
from evennia.commands.default.system import format_script_list
result.append(format_script_list(scripts))
elif "start" in self.switches:
num = sum([obj.scripts.start(script.key) for script in scripts])
result.append("%s scripts started on %s." % (num, obj.get_display_name(caller)))
elif "stop" in self.switches:
for script in scripts:
result.append("Stopping script %s on %s." % (script.get_display_name(caller),
obj.get_display_name(caller)))
script.stop()
obj.scripts.validate()
else: # rhs exists
if not self.switches:
# adding a new script, and starting it
ok = obj.scripts.add(self.rhs, autostart=True)
if not ok:
result.append("\nScript %s could not be added and/or started on %s." % (
self.rhs, obj.get_display_name(caller)))
else:
result.append("Script |w%s|n successfully added and started on %s." % (
self.rhs, obj.get_display_name(caller)))
else:
paths = [self.rhs] + ["%s.%s" % (prefix, self.rhs)
for prefix in settings.TYPECLASS_PATHS]
if "stop" in self.switches:
# we are stopping an already existing script
for path in paths:
ok = obj.scripts.stop(path)
if not ok:
result.append("\nScript %s could not be stopped. Does it exist?" % path)
else:
result = ["Script stopped and removed from object."]
break
if "start" in self.switches:
# we are starting an already existing script
for path in paths:
ok = obj.scripts.start(path)
if not ok:
result.append("\nScript %s could not be (re)started." % path)
else:
result = ["Script started successfully."]
break
caller.msg("".join(result).strip())
class CmdTag(COMMAND_DEFAULT_CLASS):
"""
handles the tags of an object
Usage:
@tag[/del] <obj> [= <tag>[:<category>]]
@tag/search <tag>[:<category]
Switches:
search - return all objects with a given Tag
del - remove the given tag. If no tag is specified,
clear all tags on object.
Manipulates and lists tags on objects. Tags allow for quick
grouping of and searching for objects. If only <obj> is given,
list all tags on the object. If /search is used, list objects
with the given tag.
The category can be used for grouping tags themselves, but it
should be used with restrain - tags on their own are usually
enough to for most grouping schemes.
"""
key = "@tag"
aliases = ["@tags"]
locks = "cmd:perm(tag) or perm(Builder)"
help_category = "Building"
arg_regex = r"(/\w+?(\s|$))|\s|$"
def func(self):
"""Implement the @tag functionality"""
if not self.args:
self.caller.msg("Usage: @tag[/switches] <obj> [= <tag>[:<category>]]")
return
if "search" in self.switches:
# search by tag
tag = self.args
category = None
if ":" in tag:
tag, category = [part.strip() for part in tag.split(":", 1)]
objs = search.search_tag(tag, category=category)
nobjs = len(objs)
if nobjs > 0:
catstr = " (category: '|w%s|n')" % category if category else \
("" if nobjs == 1 else " (may have different tag categories)")
matchstr = ", ".join(o.get_display_name(self.caller) for o in objs)
string = "Found |w%i|n object%s with tag '|w%s|n'%s:\n %s" % (nobjs,
"s" if nobjs > 1 else "",
tag,
catstr, matchstr)
else:
string = "No objects found with tag '%s%s'." % (tag,
" (category: %s)" % category if category else "")
self.caller.msg(string)
return
if "del" in self.switches:
# remove one or all tags
obj = self.caller.search(self.lhs, global_search=True)
if not obj:
return
if self.rhs:
# remove individual tag
tag = self.rhs
category = None
if ":" in tag:
tag, category = [part.strip() for part in tag.split(":", 1)]
if obj.tags.get(tag, category=category):
obj.tags.remove(tag, category=category)
string = "Removed tag '%s'%s from %s." % (
tag,
" (category: %s)" % category if category else "",
obj)
else:
string = "No tag '%s'%s to delete on %s." % (
tag,
" (category: %s)" % category if category else "",
obj)
else:
# no tag specified, clear all tags
old_tags = ["%s%s" % (tag, " (category: %s" % category if category else "")
for tag, category in obj.tags.all(return_key_and_category=True)]
if old_tags:
obj.tags.clear()
string = "Cleared all tags from %s: %s" % (obj, ", ".join(old_tags))
else:
string = "No Tags to clear on %s." % obj
self.caller.msg(string)
return
# no search/deletion
if self.rhs:
# = is found; command args are of the form obj = tag
obj = self.caller.search(self.lhs, global_search=True)
if not obj:
return
tag = self.rhs
category = None
if ":" in tag:
tag, category = [part.strip() for part in tag.split(":", 1)]
# create the tag
obj.tags.add(tag, category=category)
string = "Added tag '%s'%s to %s." % (tag,
" (category: %s)" % category if category else "",
obj)
self.caller.msg(string)
else:
# no = found - list tags on object
obj = self.caller.search(self.args, global_search=True)
if not obj:
return
tagtuples = obj.tags.all(return_key_and_category=True)
ntags = len(tagtuples)
tags = [tup[0] for tup in tagtuples]
categories = [" (category: %s)" % tup[1] if tup[1] else "" for tup in tagtuples]
if ntags:
string = "Tag%s on %s: %s" % ("s" if ntags > 1 else "", obj,
", ".join("'%s'%s" % (tags[i], categories[i]) for i in range(ntags)))
else:
string = "No tags attached to %s." % obj
self.caller.msg(string)
#
# To use the prototypes with the @spawn function set
# PROTOTYPE_MODULES = ["commands.prototypes"]
# Reload the server and the prototypes should be available.
#
class CmdSpawn(COMMAND_DEFAULT_CLASS):
"""
spawn objects from prototype
Usage:
@spawn
@spawn[/switch] <prototype_name>
@spawn[/switch] {prototype dictionary}
Switch:
noloc - allow location to be None if not specified explicitly. Otherwise,
location will default to caller's current location.
Example:
@spawn GOBLIN
@spawn {"key":"goblin", "typeclass":"monster.Monster", "location":"#2"}
Dictionary keys:
|wprototype |n - name of parent prototype to use. Can be a list for
multiple inheritance (inherits left to right)
|wkey |n - string, the main object identifier
|wtypeclass |n - string, if not set, will use settings.BASE_OBJECT_TYPECLASS
|wlocation |n - this should be a valid object or #dbref
|whome |n - valid object or #dbref
|wdestination|n - only valid for exits (object or dbref)
|wpermissions|n - string or list of permission strings
|wlocks |n - a lock-string
|waliases |n - string or list of strings
|wndb_|n<name> - value of a nattribute (ndb_ is stripped)
any other keywords are interpreted as Attributes and their values.
The available prototypes are defined globally in modules set in
settings.PROTOTYPE_MODULES. If @spawn is used without arguments it
displays a list of available prototypes.
"""
key = "@spawn"
locks = "cmd:perm(spawn) or perm(Builder)"
help_category = "Building"
def func(self):
"""Implements the spawner"""
def _show_prototypes(prototypes):
"""Helper to show a list of available prototypes"""
prots = ", ".join(sorted(prototypes.keys()))
return "\nAvailable prototypes (case sensistive): %s" % (
"\n" + utils.fill(prots) if prots else "None")
prototypes = spawn(return_prototypes=True)
if not self.args:
string = "Usage: @spawn {key:value, key, value, ... }"
self.caller.msg(string + _show_prototypes(prototypes))
return
try:
# make use of _convert_from_string from the SetAttribute command
prototype = _convert_from_string(self, self.args)
except SyntaxError:
# this means literal_eval tried to parse a faulty string
string = "|RCritical Python syntax error in argument. "
string += "Only primitive Python structures are allowed. "
string += "\nYou also need to use correct Python syntax. "
string += "Remember especially to put quotes around all "
string += "strings inside lists and dicts.|n"
self.caller.msg(string)
return
if isinstance(prototype, basestring):
# A prototype key
keystr = prototype
prototype = prototypes.get(prototype, None)
if not prototype:
string = "No prototype named '%s'." % keystr
self.caller.msg(string + _show_prototypes(prototypes))
return
elif isinstance(prototype, dict):
# we got the prototype on the command line. We must make sure to not allow
# the 'exec' key unless we are developers or higher.
if "exec" in prototype and not self.caller.check_permstring("Developer"):
self.caller.msg("Spawn aborted: You don't have access to use the 'exec' prototype key.")
return
else:
self.caller.msg("The prototype must be a prototype key or a Python dictionary.")
return
if "noloc" in self.switches and not "location" not in prototype:
prototype["location"] = self.caller.location
for obj in spawn(prototype):
self.caller.msg("Spawned %s." % obj.get_display_name(self.caller))
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