commandhandler.py
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import utils
from roomloader import RoomLoader
global_aliases = {
'n': 'north',
's': 'south',
'e': 'east',
'w': 'west',
'u': 'up',
'd': 'down',
'l': 'look',
'\'': 'say',
}
roomloader = RoomLoader('rooms')
class CommandHandler(object):
def alias(self, command):
if command in global_aliases:
return global_aliases[command]
if 'aliases' not in self.players[self.id]:
self.players[self.id]["aliases"] = {}
if command in self.players[self.id]["aliases"]:
return self.players[self.id]["aliases"][command]
return command
def tokenize_params(self):
cleaned = self.params.lower().strip()
tokens = []
for token in cleaned.split(' '):
token = token.strip()
if len(token) > 0:
tokens.append(token)
self.tokens = tokens
def look(self):
room_name = self.players[self.id]["room"]
self.mud.send_message(self.id, "")
if len(self.tokens) > 0 and self.tokens[0] == 'at':
del self.tokens[0]
if len(self.tokens) == 0:
self.mud.send_message(self.id, roomloader.get_description(room_name))
else:
subject = self.tokens[0]
items = roomloader.get_look_items(room_name)
for item in items:
if subject in item:
self.mud.send_message(self.id, items[item])
return True
self.mud.send_message(self.id, "That doesn't seem to be here.")
playershere = []
# go through every player in the game
for pid, pl in self.players.items():
# if they're in the same room as the player
if self.players[pid]["room"] == self.players[self.id]["room"]:
# ... and they have a name to be shown
if self.players[pid]["name"] is not None:
# add their name to the list
playershere.append(self.players[pid]["name"])
# send player a message containing the list of players in the room
self.mud.send_message(self.id, "Players here: {}".format(
", ".join(playershere)))
# send player a message containing the list of exits from this room
self.mud.send_message(self.id, "Exits are: {}".format(
", ".join(roomloader.get_exits(room_name))))
return True
def who(self):
self.mud.send_message(self.id, "")
self.mud.send_message(self.id, "-------- {} Players Currently Online --------".format(len(self.players)))
for pid, player in self.players.items():
self.mud.send_message(self.id, " " + player["name"])
self.mud.send_message(self.id, "---------------------------------------------".format(len(self.players)))
self.mud.send_message(self.id, "")
return True
def go(self):
# store the exit name
ex = self.params.lower().strip()
# if the specified exit is found in the room's exits list
if ex in roomloader.get_exits(self.players[self.id]["room"]):
# go through all the players in the game
for pid, pl in self.players.items():
# if player is in the same room and isn't the player
# sending the command
if self.players[pid]["room"] == self.players[self.id]["room"] \
and pid != self.id:
# send them a message telling them that the player
# left the room
self.mud.send_message(pid, "{} left via exit '{}'".format(
self.players[self.id]["name"], ex))
# update the player's current room to the one the exit leads to
if roomloader.get_title(ex) == None:
self.mud.send_message(id, "An invisible force prevents you from going in that direction.")
return True
else:
self.players[self.id]["room"] = roomloader.get_exits(self.players[self.id]["room"])[ex]
self.room = ex
# go through all the players in the game
for pid, pl in self.players.items():
# if player is in the same (new) room and isn't the player
# sending the command
if self.players[pid]["room"] == self.players[self.id]["room"] \
and pid != self.id:
# send them a message telling them that the player
# entered the room
self.mud.send_message(pid,
"{} arrived via exit '{}'".format(
self.players[self.id]["name"], ex))
# send the player a message telling them where they are now
self.mud.send_message(self.id, "You arrive at '{}'".format(roomloader.get_title(self.players[self.id]["room"])))
self.tokens = []
return self.look()
# the specified exit wasn't found in the current room
else:
# send back an 'unknown exit' message
self.mud.send_message(id, "Unknown exit '{}'".format(ex))
return True
def help(self):
if len(self.tokens) > 0:
filename = 'help/' + self.tokens[0] + '.txt'
else:
filename = 'help/help.txt'
try:
with open(filename, 'r', encoding='utf-8') as f:
for line in f:
self.mud.send_message(self.id, line, '\r')
self.mud.send_message(self.id, '')
except:
self.mud.send_message(self.id, 'No help topics available for \"{}\". A list\r\n of all commands is available at: help index'.format(self.tokens[0]))
def say(self):
# go through every player in the game
for pid, pl in self.players.items():
# if they're in the same room as the player
if self.players[pid]["room"] == self.players[self.id]["room"]:
# send them a message telling them what the player said
self.mud.send_message(pid, "{} says: {}".format(
self.players[self.id]["name"], self.params))
return True
def quit(self):
# send the player back the list of possible commands
self.mud.send_message(id, "Saving...")
utils.save_object_to_file(self.players[self.id], "players/{}.json".format(self.players[self.id]["name"]))
self.mud.disconnect_player(self.id)
return True
def save(self):
# send the player back the list of possible commands
self.mud.send_message(self.id, "Saving...")
utils.save_object_to_file(self.players[self.id], "players/{}.json".format(self.players[self.id]["name"]))
self.mud.send_message(self.id, "Save complete")
return True
def parse(self, id, cmd, params, mud, players):
self.id = id
self.params = params
self.tokenize_params()
self.mud = mud
self.players = players
self.cmd = self.alias(cmd)
try:
if self.cmd in roomloader.get_exits(self.players[id]["room"]):
self.params = self.cmd + " " + self.params
self.cmd = "go"
method = getattr(self, self.cmd)
return method()
except AttributeError as e:
print(e)
mud.send_message(id, "Unknown command '{}'".format(self.cmd))
return False