def __init__(self, name):
"""
Create a factory and world.
``name`` is the string used to look up factory-specific settings from
the configuration.
:param str name: internal name of this factory
"""
self.name = name
self.config_name = "world %s" % name
self.world = World(self.name)
self.world.factory = self
self.protocols = dict()
self.connectedIPs = defaultdict(int)
self.limitConnections = configuration.getintdefault(self.config_name,
"limitConnections",
0)
self.limitPerIP = configuration.getintdefault(self.config_name,
"limitPerIP", 0)
self.furnace_manager = FurnaceManager(self)
self.vane = WeatherVane(self)
class BravoFactory(Factory):
"""
A ``Factory`` that creates ``BravoProtocol`` objects when connected to.
"""
implements(IPushProducer)
protocol = BravoProtocol
timestamp = None
time = 0
day = 0
eid = 1
handshake_hook = None
login_hook = None
interfaces = []
def __init__(self, name):
"""
Create a factory and world.
``name`` is the string used to look up factory-specific settings from
the configuration.
:param str name: internal name of this factory
"""
self.name = name
self.config_name = "world %s" % name
self.world = World(self.name)
self.world.factory = self
self.protocols = dict()
self.connectedIPs = defaultdict(int)
self.limitConnections = configuration.getintdefault(self.config_name,
"limitConnections",
0)
self.limitPerIP = configuration.getintdefault(self.config_name,
"limitPerIP", 0)
self.furnace_manager = FurnaceManager(self)
self.vane = WeatherVane(self)
def startFactory(self):
log.msg("Initializing factory for world '%s'..." % self.name)
authenticator = configuration.get(self.config_name, "authenticator")
selected = retrieve_named_plugins(IAuthenticator, [authenticator])[0]
log.msg("Using authenticator %s" % selected.name)
self.handshake_hook = selected.handshake
self.login_hook = selected.login
# Get our plugins set up.
self.register_plugins()
log.msg("Starting world...")
self.world.start()
if configuration.has_option(self.config_name, "perm_cache"):
cache_level = configuration.getint(self.config_name, "perm_cache")
self.world.enable_cache(cache_level)
log.msg("Starting timekeeping...")
self.timestamp = reactor.seconds()
self.time = self.world.time
self.update_season()
self.time_loop = LoopingCall(self.update_time)
self.time_loop.start(2)
log.msg("Starting entity updates...")
self.entity_loop = LoopingCall(self.update_entities)
self.entity_loop.start(.2)
log.msg("Starting furnaces...")
self.furnace_manager.start()
# Start automatons.
for automaton in self.automatons:
automaton.start()
self.chat_consumers = set()
log.msg("Factory successfully initialized for world '%s'!" % self.name)
def stopFactory(self):
"""
Called before factory stops listening on ports. Used to perform
shutdown tasks.
"""
log.msg("Shutting down world...")
# Stop automatons. Technically, they may not actually halt until their
# next iteration, but that is close enough for us, probably.
# Automatons are contracted to not access the world after stop() is
# called.
for automaton in self.automatons:
automaton.stop()
self.time_loop.stop()
self.entity_loop.stop()
self.furnace_manager.stop()
# Write back current world time. This must be done before stopping the
# world.
self.world.time = self.time
# And now stop the world.
self.world.stop()
log.msg("World data saved!")
def buildProtocol(self, addr):
"""
Create a protocol.
This overriden method provides early player entity registration, as a
solution to the username/entity race that occurs on login.
"""
banned = self.world.serializer.load_plugin_data("banned_ips")
# Do IP bans first.
for ip in banned.split():
if addr.host == ip:
# Use KickedProtocol with extreme prejudice.
log.msg("Kicking banned IP %s" % addr.host)
p = KickedProtocol("Sorry, but your IP address is banned.")
p.factory = self
return p
# We are ignoring values less that 1, but making sure not to go over
# the connection limit.
if (self.limitConnections
and len(self.protocols) >= self.limitConnections):
log.msg("Reached maximum players, turning %s away." % addr.host)
p = KickedProtocol("The player limit has already been reached."
" Please try again later.")
p.factory = self
return p
# This probably a needs cleanup. We need to see if that IP has
# connected already, check if +1 connections is ok, and ignore
# values less than 1.
if (self.limitPerIP and addr.host in self.connectedIPs.keys()
and self.connectedIPs[addr.host] >= self.limitPerIP):
log.msg("At maximum connections for %s already, dropping." % addr.host)
p = KickedProtocol("There are too many players connected from this IP.")
p.factory = self
return p
else:
self.connectedIPs[addr.host] += 1
# If the player wasn't kicked, let's continue!
log.msg("Starting connection for %s" % addr)
p = self.protocol(self.name)
p.host = addr.host
p.factory = self
self.register_entity(p)
# Copy our hooks to the protocol.
p.register_hooks()
return p
def set_username(self, protocol, username):
"""
Attempt to set a new username for a protocol.
:returns: whether the username was changed
"""
# If the username's already taken, refuse it.
if username in self.protocols:
return False
if protocol.username in self.protocols:
# This protocol's known under another name, so remove it.
del self.protocols[protocol.username]
# Set the username.
self.protocols[username] = protocol
protocol.username = username
return True
def register_plugins(self):
"""
Setup plugin hooks.
"""
log.msg("Registering client plugin hooks...")
plugin_types = {
"automatons": IAutomaton,
"generators": ITerrainGenerator,
"seasons": ISeason,
"open_hooks": IWindowOpenHook,
"click_hooks": IWindowClickHook,
"close_hooks": IWindowCloseHook,
"pre_build_hooks": IPreBuildHook,
"post_build_hooks": IPostBuildHook,
"dig_hooks": IDigHook,
"sign_hooks": ISignHook,
"use_hooks": IUseHook,
}
pp = {"factory": self,
"furnaces": self.furnace_manager}
for t, interface in plugin_types.iteritems():
l = configuration.getlistdefault(self.config_name, t, [])
if issubclass(interface, ISortedPlugin):
plugins = retrieve_sorted_plugins(interface, l, parameters=pp)
else:
plugins = retrieve_named_plugins(interface, l, parameters=pp)
log.msg("Using %s: %s" % (t.replace("_", " "),
", ".join(plugin.name for plugin in plugins)))
setattr(self, t, plugins)
# Assign generators to the world pipeline.
self.world.pipeline = self.generators
# Use hooks have special funkiness.
uh = self.use_hooks
self.use_hooks = defaultdict(list)
for plugin in uh:
for target in plugin.targets:
self.use_hooks[target].append(plugin)
def create_entity(self, x, y, z, name, **kwargs):
"""
Spawn an entirely new entity.
Handles entity registration as well as instantiation.
"""
location = Location()
location.x = x
location.y = y
location.z = z
entity = entities[name](eid=0, location=location, **kwargs)
self.register_entity(entity)
bigx = entity.location.x // 16
bigz = entity.location.z // 16
d = self.world.request_chunk(bigx, bigz)
d.addCallback(lambda chunk: chunk.entities.add(entity))
d.addCallback(lambda none: log.msg("Created entity %s" % entity))
return entity
def register_entity(self, entity):
"""
Registers an entity with this factory.
Registration is perhaps too fancy of a name; this method merely makes
sure that the entity has a unique and usable entity ID.
"""
if not entity.eid:
self.eid += 1
entity.eid = self.eid
log.msg("Registered entity %s" % entity)
def destroy_entity(self, entity):
"""
Destroy an entity.
The factory doesn't have to know about entities, but it is a good
place to put this logic.
"""
bigx = entity.location.x // 16
bigz = entity.location.z // 16
d = self.world.request_chunk(bigx, bigz)
d.addCallback(lambda chunk: chunk.entities.discard(entity))
d.addCallback(lambda none: log.msg("Destroyed entity %s" % entity))
def update_entities(self):
"""
Update all entities covered by this factory.
"""
# XXX this method could cause chunks to be generated :c
points = set()
for player in self.protocols.itervalues():
x = player.location.x
z = player.location.z
bigx, chaff, bigz, chaff = split_coords(x, z)
new = set((i + bigx, j + bigz) for i, j in circle)
points.update(new)
for x, y in points:
d = self.world.request_chunk(x, y)
d.addCallback(lambda chunk: chunk.update_entities(self))
def update_time(self):
"""
Update the in-game timer.
The timer goes from 0 to 24000, both of which are high noon. The clock
increments by 20 every second. Days are 20 minutes long.
The day clock is incremented every in-game day, which is every 20
minutes. The day clock goes from 0 to 360, which works out to a reset
once every 5 days. This is a Babylonian in-game year.
"""
t = reactor.seconds()
self.time += 20 * (t - self.timestamp)
self.timestamp = t
days, self.time = divmod(self.time, 24000)
if days:
self.day += days
self.day %= 360
self.update_season()
def broadcast_time(self):
packet = make_packet("time", timestamp=int(self.time))
self.broadcast(packet)
def update_season(self):
"""
Update the world's season.
"""
all_seasons = sorted(self.seasons, key=lambda s: s.day)
# Get all the seasons that we have past the start date of this year.
# We are looking for the season which is closest to our current day,
# without going over; I call this the Price-is-Right style of season
# handling. :3
past_seasons = [s for s in all_seasons if s.day <= self.day]
if past_seasons:
# The most recent one is the one we are in
self.world.season = past_seasons[-1]
elif all_seasons:
# We haven't past any seasons yet this year, so grab the last one
# from 'last year'
self.world.season = all_seasons[-1]
else:
# No seasons enabled.
self.world.season = None
def chat(self, message):
"""
Relay chat messages.
Chat messages are sent to all connected clients, as well as to anybody
consuming this factory.
"""
for consumer in self.chat_consumers:
consumer.write((self, message))
# Prepare the message for chat packeting.
for user in self.protocols:
message = message.replace(user, chat_name(user))
message = sanitize_chat(message)
log.msg("Chat: %s" % message.encode("utf8"))
packet = make_packet("chat", message=message)
self.broadcast(packet)
def broadcast(self, packet):
"""
Broadcast a packet to all connected players.
"""
for player in self.protocols.itervalues():
player.transport.write(packet)
def broadcast_for_others(self, packet, protocol):
"""
Broadcast a packet to all players except the originating player.
Useful for certain packets like player entity spawns which should
never be reflexive.
"""
for player in self.protocols.itervalues():
if player is not protocol:
player.transport.write(packet)
def broadcast_for_chunk(self, packet, x, z):
"""
Broadcast a packet to all players that have a certain chunk loaded.
`x` and `z` are chunk coordinates, not block coordinates.
"""
for player in self.protocols.itervalues():
if (x, z) in player.chunks:
player.transport.write(packet)
def scan_chunk(self, chunk):
"""
Tell automatons about this chunk.
"""
for automaton in self.automatons:
automaton.scan(chunk)
def flush_chunk(self, chunk):
"""
Flush a damaged chunk to all players that have it loaded.
"""
if chunk.is_damaged():
packet = chunk.get_damage_packet()
for player in self.protocols.itervalues():
if (chunk.x, chunk.z) in player.chunks:
player.transport.write(packet)
chunk.clear_damage()
def flush_all_chunks(self):
"""
Flush any damage anywhere in this world to all players.
This is a sledgehammer which should be used sparingly at best, and is
only well-suited to plugins which touch multiple chunks at once.
In other words, if I catch you using this in your plugin needlessly,
I'm gonna have a chat with you.
"""
for chunk in chain(self.world.chunk_cache.itervalues(),
self.world.dirty_chunk_cache.itervalues()):
self.flush_chunk(chunk)
def give(self, coords, block, quantity):
"""
Spawn a pickup at the specified coordinates.
The coordinates need to be in pixels, not blocks.
If the size of the stack is too big, multiple stacks will be dropped.
:param tuple coords: coordinates, in pixels
:param tuple block: key of block or item to drop
:param int quantity: number of blocks to drop in the stack
"""
x, y, z = coords
while quantity > 0:
entity = self.create_entity(x // 32, y // 32, z // 32, "Item",
item=block, quantity=min(quantity, 64))
packet = entity.save_to_packet()
packet += make_packet("create", eid=entity.eid)
self.broadcast(packet)
quantity -= 64
def players_near(self, player, radius):
"""
Obtain other players within a radius of a given player.
Radius is measured in blocks.
"""
for i in (p for p in self.protocols.itervalues()
if player.location.distance(p.location) <= radius and
p.player != player):
yield i.player
def pauseProducing(self):
pass
def resumeProducing(self):
pass
def stopProducing(self):
pass
