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 command = mudpy.misc.find_command(parameters)
153 # only for allowed commands
154 if actor.can_run(command):
156 # add a description if provided
157 description = command.get("description")
159 description = "(no short description provided)"
160 if command.get("administrative"):
164 output += parameters + "$(nrm) - " + description + "$(eol)$(eol)"
166 # add the help text if provided
167 help_text = command.get("help")
169 help_text = "No help is provided for this command."
172 # list related commands
173 see_also = command.get("see_also")
176 for item in see_also:
177 if item in actor.universe.groups["command"]:
178 command = actor.universe.groups["command"][item]
179 if actor.can_run(command):
181 really_see_also += ", "
182 if command.get("administrative"):
183 really_see_also += "$(red)"
185 really_see_also += "$(grn)"
186 really_see_also += item + "$(nrm)"
188 output += "$(eol)$(eol)See also: " + really_see_also
190 # no data for the requested command word
192 output = "That is not an available command."
194 # no specific command word was indicated
197 # give a sorted list of commands with descriptions if provided
198 output = "These are the commands available to you:$(eol)$(eol)"
199 sorted_commands = list(actor.universe.groups["command"].keys())
200 sorted_commands.sort()
201 for item in sorted_commands:
202 command = actor.universe.groups["command"][item]
203 if actor.can_run(command):
204 description = command.get("description")
206 description = "(no short description provided)"
207 if command.get("administrative"):
211 output += item + "$(nrm) - " + description + "$(eol)"
212 output += ('$(eol)Enter "help COMMAND" for help on a command '
215 # send the accumulated output to the user
219 def look(actor, parameters):
222 actor.send("You can't look at or in anything yet.")
224 actor.look_at(actor.get("location"))
227 def move(actor, parameters):
228 """Move the avatar in a given direction."""
229 if parameters in actor.universe.contents[actor.get("location")].portals():
230 actor.move_direction(parameters)
232 actor.send("You cannot go that way.")
235 def preferences(actor, parameters):
236 """List, view and change actor preferences."""
238 # Escape replacement macros in preferences
239 parameters = mudpy.misc.escape_macros(parameters)
242 arguments = parameters.split()
243 allowed_prefs = set()
244 user_config = actor.universe.contents.get("mudpy.user")
246 allowed_prefs.update(user_config.get("pref_allow", []))
247 if actor.owner.account.get("administrator"):
248 allowed_prefs.update(user_config.get("pref_admin", []))
250 message += "These are your current preferences:"
251 for pref in allowed_prefs:
252 message += ("$(eol) $(red)%s $(grn)%s$(nrm)"
253 % (pref, actor.owner.account.get(pref)))
254 elif arguments[0] not in allowed_prefs:
256 'Preference "%s" does not exist. Try the `preferences` command by '
257 "itself for a list of valid preferences." % arguments[0])
258 elif len(arguments) == 1:
259 message += "%s" % actor.owner.account.get(arguments[0])
262 value = " ".join(arguments[1:])
264 actor.owner.account.set(pref, value)
265 message += 'Preference "%s" set to "%s".' % (pref, value)
268 'Preference "%s" cannot be set to type "%s".' % (
274 """Leave the world and go back to the main menu."""
276 actor.owner.state = "main_utility"
277 actor.owner.deactivate_avatar()
281 """Reload all code modules, configs and data."""
284 # let the user know and log
285 actor.send("Reloading all code modules, configs and data.")
288 actor.owner.account.get("name") + " reloaded the world.",
292 # set a flag to reload
293 actor.universe.reload_flag = True
296 def say(actor, parameters):
297 """Speak to others in the same area."""
299 # check for replacement macros and escape them
300 parameters = mudpy.misc.escape_macros(parameters)
302 # if the message is wrapped in quotes, remove them and leave contents
304 if parameters.startswith('"') and parameters.endswith('"'):
305 message = parameters[1:-1]
308 # otherwise, get rid of stray quote marks on the ends of the message
310 message = parameters.strip('''"'`''')
313 # the user entered a message
316 # match the punctuation used, if any, to an action
317 if "mudpy.linguistic" in actor.universe.contents:
318 actions = actor.universe.contents[
319 "mudpy.linguistic"].get("actions", {})
320 default_punctuation = (actor.universe.contents[
321 "mudpy.linguistic"].get("default_punctuation", "."))
324 default_punctuation = "."
327 # reverse sort punctuation options so the longest match wins
328 for mark in sorted(actions.keys(), reverse=True):
329 if not literal and message.endswith(mark):
330 action = actions[mark]
333 # add punctuation if needed
335 action = actions[default_punctuation]
337 literal or unicodedata.category(message[-1]) == "Po"
339 message += default_punctuation
341 # failsafe checks to avoid unwanted reformatting and null strings
342 if message and not literal:
344 # decapitalize the first letter to improve matching
345 message = message[0].lower() + message[1:]
347 # iterate over all words in message, replacing typos
348 if "mudpy.linguistic" in actor.universe.contents:
349 typos = actor.universe.contents[
350 "mudpy.linguistic"].get("typos", {})
353 words = message.split()
354 for index in range(len(words)):
356 while unicodedata.category(word[0]) == "Po":
358 while unicodedata.category(word[-1]) == "Po":
360 if word in typos.keys():
361 words[index] = words[index].replace(word, typos[word])
362 message = " ".join(words)
364 # capitalize the first letter
365 message = message[0].upper() + message[1:]
369 actor.echo_to_location(
370 actor.get("name") + " " + action + 's, "' + message + '"'
372 actor.send("You " + action + ', "' + message + '"')
374 # there was no message
376 actor.send("What do you want to say?")
379 def c_set(actor, parameters):
380 """Set a facet of an element."""
382 message = "You must specify an element, a facet and a value."
384 arguments = parameters.split(" ", 2)
385 if len(arguments) == 1:
386 message = ('What facet of element "' + arguments[0]
387 + '" would you like to set?')
388 elif len(arguments) == 2:
389 message = ('What value would you like to set for the "' +
390 arguments[1] + '" facet of the "' + arguments[0]
393 element, facet, value = arguments
394 if element not in actor.universe.contents:
395 message = 'The "' + element + '" element does not exist.'
398 actor.universe.contents[element].set(facet, value)
399 except PermissionError:
400 message = ('The "%s" element is kept in read-only file '
401 '"%s" and cannot be altered.' %
402 (element, actor.universe.contents[
403 element].origin.source))
405 message = ('Value "%s" of type "%s" cannot be coerced '
406 'to the correct datatype for facet "%s".' %
407 (value, type(value), facet))
409 message = ('You have successfully (re)set the "' + facet
410 + '" facet of element "' + element
411 + '". Try "show element ' +
412 element + '" for verification.')
416 def show(actor, parameters):
417 """Show program data."""
419 arguments = parameters.split()
421 message = "What do you want to show?"
422 elif arguments[0] == "version":
423 message = repr(actor.universe.versions)
424 elif arguments[0] == "time":
425 message = actor.universe.groups["internal"]["counters"].get(
427 ) + " increments elapsed since the world was created."
428 elif arguments[0] == "groups":
429 message = "These are the element groups:$(eol)"
430 groups = list(actor.universe.groups.keys())
433 message += "$(eol) $(grn)" + group + "$(nrm)"
434 elif arguments[0] == "files":
435 message = "These are the current files containing the universe:$(eol)"
436 filenames = sorted(actor.universe.files)
437 for filename in filenames:
438 if actor.universe.files[filename].is_writeable():
442 message += ("$(eol) $(red)(%s) $(grn)%s$(nrm)" %
444 if actor.universe.files[filename].flags:
445 message += (" $(yel)[%s]$(nrm)" %
446 ",".join(actor.universe.files[filename].flags))
447 elif arguments[0] == "group":
448 if len(arguments) != 2:
449 message = "You must specify one group."
450 elif arguments[1] in actor.universe.groups:
451 message = ('These are the elements in the "' + arguments[1]
455 actor.universe.groups[arguments[1]][x].key
456 ) for x in actor.universe.groups[arguments[1]].keys()
459 for element in elements:
460 message += "$(eol) $(grn)" + element + "$(nrm)"
462 message = 'Group "' + arguments[1] + '" does not exist.'
463 elif arguments[0] == "file":
464 if len(arguments) != 2:
465 message = "You must specify one file."
466 elif arguments[1] in actor.universe.files:
467 message = ('These are the nodes in the "' + arguments[1]
469 elements = sorted(actor.universe.files[arguments[1]].data)
470 for element in elements:
471 message += "$(eol) $(grn)" + element + "$(nrm)"
473 message = 'File "%s" does not exist.' % arguments[1]
474 elif arguments[0] == "element":
475 if len(arguments) != 2:
476 message = "You must specify one element."
477 elif arguments[1].strip(".") in actor.universe.contents:
478 element = actor.universe.contents[arguments[1].strip(".")]
479 message = ('These are the properties of the "' + arguments[1]
480 + '" element (in "' + element.origin.source
482 facets = element.facets()
483 for facet in sorted(facets):
484 message += ("$(eol) $(grn)%s: $(red)%s$(nrm)" %
485 (facet, str(facets[facet])))
487 message = 'Element "' + arguments[1] + '" does not exist.'
488 elif arguments[0] == "result":
489 if len(arguments) < 2:
490 message = "You need to specify an expression."
493 message = repr(eval(" ".join(arguments[1:])))
494 except Exception as e:
495 message = ("$(red)Your expression raised an exception...$(eol)"
496 "$(eol)$(bld)%s$(nrm)" % e)
497 elif arguments[0] == "log":
498 if len(arguments) == 4:
499 if re.match(r"^\d+$", arguments[3]) and int(arguments[3]) >= 0:
500 stop = int(arguments[3])
505 if len(arguments) >= 3:
506 if re.match(r"^\d+$", arguments[2]) and int(arguments[2]) > 0:
507 start = int(arguments[2])
512 if len(arguments) >= 2:
513 if (re.match(r"^\d+$", arguments[1])
514 and 0 <= int(arguments[1]) <= 9):
515 level = int(arguments[1])
518 elif 0 <= actor.owner.account.get("loglevel", 0) <= 9:
519 level = actor.owner.account.get("loglevel", 0)
522 if level > -1 and start > -1 and stop > -1:
523 message = mudpy.misc.get_loglines(level, start, stop)
525 message = ("When specified, level must be 0-9 (default 1), "
526 "start and stop must be >=1 (default 10 and 1).")
528 message = '''I don't know what "''' + parameters + '" is.'