1 """User command functions for the mudpy engine."""
3 # Copyright (c) 2004-2019 mudpy authors. Permission to use, copy,
4 # modify, and distribute this software is granted under terms
5 # provided in the LICENSE file distributed with this software.
15 """Toggle chat mode."""
16 mode = actor.get("mode")
18 actor.set("mode", "chat")
19 actor.send("Entering chat mode (use $(grn)!chat$(nrm) to exit).")
21 actor.remove_facet("mode")
22 actor.send("Exiting chat mode.")
24 actor.send("Sorry, but you're already busy with something else!")
27 def create(actor, parameters):
28 """Create an element if it does not exist."""
30 message = "You must at least specify an element to create."
34 arguments = parameters.split()
35 if len(arguments) == 1:
37 if len(arguments) == 2:
38 element, filename = arguments
39 if element in actor.universe.contents:
40 message = 'The "' + element + '" element already exists.'
42 message = ('You create "' +
43 element + '" within the universe.')
44 logline = actor.owner.account.get(
46 ) + " created an element: " + element
48 logline += " in file " + filename
49 if filename not in actor.universe.files:
51 ' Warning: "' + filename + '" is not yet '
52 "included in any other file and will not be read "
53 "on startup unless this is remedied.")
54 mudpy.misc.Element(element, actor.universe, filename)
55 mudpy.misc.log(logline, 6)
56 elif len(arguments) > 2:
57 message = "You can only specify an element and a filename."
61 def delete(actor, parameters):
62 """Delete a facet from an element."""
64 message = "You must specify an element and a facet."
66 arguments = parameters.split(" ")
67 if len(arguments) == 1:
68 message = ('What facet of element "' + arguments[0]
69 + '" would you like to delete?')
70 elif len(arguments) != 2:
71 message = "You may only specify an element and a facet."
73 element, facet = arguments
74 if element not in actor.universe.contents:
75 message = 'The "' + element + '" element does not exist.'
76 elif facet not in actor.universe.contents[element].facets():
77 message = ('The "' + element + '" element has no "' + facet
80 actor.universe.contents[element].remove_facet(facet)
81 message = ('You have successfully deleted the "' + facet
82 + '" facet of element "' + element
83 + '". Try "show element ' +
84 element + '" for verification.')
88 def destroy(actor, parameters):
89 """Destroy an element if it exists."""
92 message = "You must specify an element to destroy."
94 if parameters not in actor.universe.contents:
95 message = 'The "' + parameters + '" element does not exist.'
97 actor.universe.contents[parameters].destroy()
98 message = ('You destroy "' + parameters
99 + '" within the universe.')
101 actor.owner.account.get(
103 ) + " destroyed an element: " + parameters,
109 def error(actor, input_data):
110 """Generic error for an unrecognized command word."""
112 # 90% of the time use a generic error
113 if random.randrange(10):
114 message = '''I'm not sure what "''' + input_data + '''" means...'''
116 # 10% of the time use the classic diku error
118 message = "Arglebargle, glop-glyf!?!"
120 # send the error message
124 def halt(actor, parameters):
125 """Halt the world."""
128 # see if there's a message or use a generic one
130 message = "Halting: " + parameters
132 message = "User " + actor.owner.account.get(
134 ) + " halted the world."
137 mudpy.misc.broadcast(message, add_prompt=False)
138 mudpy.misc.log(message, 8)
140 # set a flag to terminate the world
141 actor.universe.terminate_flag = True
144 def help(actor, parameters):
145 """List available commands and provide help for commands."""
147 # did the user ask for help on a specific command word?
148 if parameters and actor.owner:
150 # is the command word one for which we have data?
151 if parameters in actor.universe.groups["command"]:
152 command = actor.universe.groups["command"][parameters]
156 # only for allowed commands
157 if actor.can_run(command):
159 # add a description if provided
160 description = command.get("description")
162 description = "(no short description provided)"
163 if command.get("administrative"):
167 output += parameters + "$(nrm) - " + description + "$(eol)$(eol)"
169 # add the help text if provided
170 help_text = command.get("help")
172 help_text = "No help is provided for this command."
175 # list related commands
176 see_also = command.get("see_also")
179 for item in see_also:
180 if item in actor.universe.groups["command"]:
181 command = actor.universe.groups["command"][item]
182 if actor.can_run(command):
184 really_see_also += ", "
185 if command.get("administrative"):
186 really_see_also += "$(red)"
188 really_see_also += "$(grn)"
189 really_see_also += item + "$(nrm)"
191 output += "$(eol)$(eol)See also: " + really_see_also
193 # no data for the requested command word
195 output = "That is not an available command."
197 # no specific command word was indicated
200 # give a sorted list of commands with descriptions if provided
201 output = "These are the commands available to you:$(eol)$(eol)"
202 sorted_commands = list(actor.universe.groups["command"].keys())
203 sorted_commands.sort()
204 for item in sorted_commands:
205 command = actor.universe.groups["command"][item]
206 if actor.can_run(command):
207 description = command.get("description")
209 description = "(no short description provided)"
210 if command.get("administrative"):
214 output += item + "$(nrm) - " + description + "$(eol)"
215 output += ('$(eol)Enter "help COMMAND" for help on a command '
218 # send the accumulated output to the user
222 def look(actor, parameters):
225 actor.send("You can't look at or in anything yet.")
227 actor.look_at(actor.get("location"))
230 def move(actor, parameters):
231 """Move the avatar in a given direction."""
232 if parameters in actor.universe.contents[actor.get("location")].portals():
233 actor.move_direction(parameters)
235 actor.send("You cannot go that way.")
238 def preferences(actor, parameters):
239 """List, view and change actor preferences."""
241 # Escape replacement macros in preferences
242 parameters = mudpy.misc.escape_macros(parameters)
245 arguments = parameters.split()
246 allowed_prefs = set()
247 user_config = actor.universe.contents.get("mudpy.user")
249 allowed_prefs.update(user_config.get("pref_allow", []))
250 if actor.owner.account.get("administrator"):
251 allowed_prefs.update(user_config.get("pref_admin", []))
253 message += "These are your current preferences:"
254 for pref in allowed_prefs:
255 message += ("$(eol) $(red)%s $(grn)%s$(nrm)"
256 % (pref, actor.owner.account.get(pref)))
257 elif arguments[0] not in allowed_prefs:
259 'Preference "%s" does not exist. Try the `preferences` command by '
260 "itself for a list of valid preferences." % arguments[0])
261 elif len(arguments) == 1:
262 message += "%s" % actor.owner.account.get(arguments[0])
265 value = " ".join(arguments[1:])
267 actor.owner.account.set(pref, value)
268 message += 'Preference "%s" set to "%s".' % (pref, value)
271 'Preference "%s" cannot be set to type "%s".' % (
277 """Leave the world and go back to the main menu."""
279 actor.owner.state = "main_utility"
280 actor.owner.deactivate_avatar()
284 """Reload all code modules, configs and data."""
287 # let the user know and log
288 actor.send("Reloading all code modules, configs and data.")
291 actor.owner.account.get("name") + " reloaded the world.",
295 # set a flag to reload
296 actor.universe.reload_flag = True
299 def say(actor, parameters):
300 """Speak to others in the same area."""
302 # check for replacement macros and escape them
303 parameters = mudpy.misc.escape_macros(parameters)
305 # if the message is wrapped in quotes, remove them and leave contents
307 if parameters.startswith('"') and parameters.endswith('"'):
308 message = parameters[1:-1]
311 # otherwise, get rid of stray quote marks on the ends of the message
313 message = parameters.strip('''"'`''')
316 # the user entered a message
319 # match the punctuation used, if any, to an action
320 if "mudpy.linguistic" in actor.universe.contents:
321 actions = actor.universe.contents[
322 "mudpy.linguistic"].get("actions", {})
323 default_punctuation = (actor.universe.contents[
324 "mudpy.linguistic"].get("default_punctuation", "."))
327 default_punctuation = "."
330 # reverse sort punctuation options so the longest match wins
331 for mark in sorted(actions.keys(), reverse=True):
332 if not literal and message.endswith(mark):
333 action = actions[mark]
336 # add punctuation if needed
338 action = actions[default_punctuation]
340 literal or unicodedata.category(message[-1]) == "Po"
342 message += default_punctuation
344 # failsafe checks to avoid unwanted reformatting and null strings
345 if message and not literal:
347 # decapitalize the first letter to improve matching
348 message = message[0].lower() + message[1:]
350 # iterate over all words in message, replacing typos
351 if "mudpy.linguistic" in actor.universe.contents:
352 typos = actor.universe.contents[
353 "mudpy.linguistic"].get("typos", {})
356 words = message.split()
357 for index in range(len(words)):
359 while unicodedata.category(word[0]) == "Po":
361 while unicodedata.category(word[-1]) == "Po":
363 if word in typos.keys():
364 words[index] = words[index].replace(word, typos[word])
365 message = " ".join(words)
367 # capitalize the first letter
368 message = message[0].upper() + message[1:]
372 actor.echo_to_location(
373 actor.get("name") + " " + action + 's, "' + message + '"'
375 actor.send("You " + action + ', "' + message + '"')
377 # there was no message
379 actor.send("What do you want to say?")
382 def c_set(actor, parameters):
383 """Set a facet of an element."""
385 message = "You must specify an element, a facet and a value."
387 arguments = parameters.split(" ", 2)
388 if len(arguments) == 1:
389 message = ('What facet of element "' + arguments[0]
390 + '" would you like to set?')
391 elif len(arguments) == 2:
392 message = ('What value would you like to set for the "' +
393 arguments[1] + '" facet of the "' + arguments[0]
396 element, facet, value = arguments
397 if element not in actor.universe.contents:
398 message = 'The "' + element + '" element does not exist.'
401 actor.universe.contents[element].set(facet, value)
402 except PermissionError:
403 message = ('The "%s" element is kept in read-only file '
404 '"%s" and cannot be altered.' %
405 (element, actor.universe.contents[
406 element].origin.source))
408 message = ('Value "%s" of type "%s" cannot be coerced '
409 'to the correct datatype for facet "%s".' %
410 (value, type(value), facet))
412 message = ('You have successfully (re)set the "' + facet
413 + '" facet of element "' + element
414 + '". Try "show element ' +
415 element + '" for verification.')
419 def show(actor, parameters):
420 """Show program data."""
422 arguments = parameters.split()
424 message = "What do you want to show?"
425 elif arguments[0] == "version":
426 message = repr(actor.universe.versions)
427 elif arguments[0] == "time":
428 message = actor.universe.groups["internal"]["counters"].get(
430 ) + " increments elapsed since the world was created."
431 elif arguments[0] == "groups":
432 message = "These are the element groups:$(eol)"
433 groups = list(actor.universe.groups.keys())
436 message += "$(eol) $(grn)" + group + "$(nrm)"
437 elif arguments[0] == "files":
438 message = "These are the current files containing the universe:$(eol)"
439 filenames = sorted(actor.universe.files)
440 for filename in filenames:
441 if actor.universe.files[filename].is_writeable():
445 message += ("$(eol) $(red)(%s) $(grn)%s$(nrm)" %
447 if actor.universe.files[filename].flags:
448 message += (" $(yel)[%s]$(nrm)" %
449 ",".join(actor.universe.files[filename].flags))
450 elif arguments[0] == "group":
451 if len(arguments) != 2:
452 message = "You must specify one group."
453 elif arguments[1] in actor.universe.groups:
454 message = ('These are the elements in the "' + arguments[1]
458 actor.universe.groups[arguments[1]][x].key
459 ) for x in actor.universe.groups[arguments[1]].keys()
462 for element in elements:
463 message += "$(eol) $(grn)" + element + "$(nrm)"
465 message = 'Group "' + arguments[1] + '" does not exist.'
466 elif arguments[0] == "file":
467 if len(arguments) != 2:
468 message = "You must specify one file."
469 elif arguments[1] in actor.universe.files:
470 message = ('These are the nodes in the "' + arguments[1]
472 elements = sorted(actor.universe.files[arguments[1]].data)
473 for element in elements:
474 message += "$(eol) $(grn)" + element + "$(nrm)"
476 message = 'File "%s" does not exist.' % arguments[1]
477 elif arguments[0] == "element":
478 if len(arguments) != 2:
479 message = "You must specify one element."
480 elif arguments[1].strip(".") in actor.universe.contents:
481 element = actor.universe.contents[arguments[1].strip(".")]
482 message = ('These are the properties of the "' + arguments[1]
483 + '" element (in "' + element.origin.source
485 facets = element.facets()
486 for facet in sorted(facets):
487 message += ("$(eol) $(grn)%s: $(red)%s$(nrm)" %
488 (facet, str(facets[facet])))
490 message = 'Element "' + arguments[1] + '" does not exist.'
491 elif arguments[0] == "result":
492 if len(arguments) < 2:
493 message = "You need to specify an expression."
496 message = repr(eval(" ".join(arguments[1:])))
497 except Exception as e:
498 message = ("$(red)Your expression raised an exception...$(eol)"
499 "$(eol)$(bld)%s$(nrm)" % e)
500 elif arguments[0] == "log":
501 if len(arguments) == 4:
502 if re.match(r"^\d+$", arguments[3]) and int(arguments[3]) >= 0:
503 stop = int(arguments[3])
508 if len(arguments) >= 3:
509 if re.match(r"^\d+$", arguments[2]) and int(arguments[2]) > 0:
510 start = int(arguments[2])
515 if len(arguments) >= 2:
516 if (re.match(r"^\d+$", arguments[1])
517 and 0 <= int(arguments[1]) <= 9):
518 level = int(arguments[1])
521 elif 0 <= actor.owner.account.get("loglevel", 0) <= 9:
522 level = actor.owner.account.get("loglevel", 0)
525 if level > -1 and start > -1 and stop > -1:
526 message = mudpy.misc.get_loglines(level, start, stop)
528 message = ("When specified, level must be 0-9 (default 1), "
529 "start and stop must be >=1 (default 10 and 1).")
531 message = '''I don't know what "''' + parameters + '" is.'