def __init__(self, folder):
"""
Load a world from disk.
:Parameters:
folder : str
The directory containing the world.
"""
self.folder = FilePath(folder)
if not self.folder.exists():
self.folder.makedirs()
self.chunk_cache = weakref.WeakValueDictionary()
self.dirty_chunk_cache = dict()
self._pending_chunks = dict()
self.spawn = (0, 0, 0)
self.seed = random.randint(0, sys.maxint)
level = self.folder.child("level%s" % extension())
if level.exists() and level.getsize():
self.load_from_tag(read_from_file(level.open("r")))
write_to_file(self.save_to_tag(), level.open("w"))
self.chunk_management_loop = LoopingCall(self.sort_chunks)
self.chunk_management_loop.start(1)
def save_player(self, username, player):
f = self.folder.child("players")
if not f.exists():
f.makedirs()
f = f.child("%s%s" % (username, extension()))
write_to_file(player.save_to_tag(), f.open("w"))
def names_for_chunk(x, z):
"""
Calculate the folder and file names for given chunk coordinates.
"""
first = base36(x & 63)
second = base36(z & 63)
third = "c.%s.%s%s" % (base36(x), base36(z), extension())
return first, second, third
def load_player(self, username):
"""
Retrieve player data.
"""
player = self.factory.create_entity(self.spawn[0], self.spawn[1],
self.spawn[2], "Player", username=username)
player.location.stance = self.spawn[1]
player.username = username
f = self.folder.child("players")
if not f.exists():
f.makedirs()
f = f.child("%s%s" % (username, extension()))
if f.exists() and f.getsize():
player.load_from_tag(read_from_file(f.open("r")))
return player
