def __init__(self, chkx, chkz, path, ext):
filename = os.path.join(path,
"r.{}.{}.{}".format(chkx//32, chkz//32, ext))
with open(filename, "rb") as f:
ofs = ((chkx%32) + 32*(chkz%32))*4
f.seek(ofs)
offset = bytesToInt(f.read(3)) << 12
f.seek(offset)
length = bytesToInt(f.read(4))
compression_type = bytesToInt(f.read(1))
data = f.read(length - 1) # 1 byte for compression_type
if compression_type == 1: # Gzip
udata = zlib.decompress(data, 15+16)
elif compression_type == 2: # Zlib
udata = zlib.decompress(data)
else:
raise ValueError("Unsupported compression type")
raw_data = nbt.read(udata)['']['Level']
self.blocks = []
if ext == "mca":
# Anvil file format
for section in raw_data["Sections"]:
self.blocks.append(MCBlock(raw_data, (chkx, chkz), section["Y"], True))
else:
for yslice in range(8):
self.blocks.append(MCBlock(raw_data, (chkx, chkz), yslice, False))
def __init__(self, chkx, chkz, path, ext):
filename = os.path.join(path,
"r.{}.{}.{}".format(chkx//32, chkz//32, ext))
with open(filename, "rb") as f:
ofs = ((chkx%32) + 32*(chkz%32))*4
f.seek(ofs)
offset = bytesToInt(f.read(3)) << 12
f.seek(offset)
length = bytesToInt(f.read(4))
compression_type = bytesToInt(f.read(1))
data = f.read(length - 1) # 1 byte for compression_type
if compression_type == 1: # Gzip
udata = zlib.decompress(data, 15+16)
elif compression_type == 2: # Zlib
udata = zlib.decompress(data)
else:
raise ValueError("Unsupported compression type")
raw_data = nbt.read(udata)['']['Level']
self.blocks = []
if ext == "mca":
# Anvil file format
for section in raw_data["Sections"]:
self.blocks.append(MCBlock(raw_data, (chkx, chkz), section["Y"], True))
else:
for yslice in range(8):
self.blocks.append(MCBlock(raw_data, (chkx, chkz), yslice, False))
def __init__(self, x, z, path, ext):
filename = os.path.join(path, "r.{}.{}.{}".format(x // mcvars.REGION_CHUNK_LENGTH, z // mcvars.REGION_CHUNK_LENGTH, ext))
with open(filename, "rb") as f:
offset1 = ((x % mcvars.REGION_CHUNK_LENGTH) + mcvars.REGION_CHUNK_LENGTH * (z % mcvars.REGION_CHUNK_LENGTH)) * 4
f.seek(offset1)
offset2 = serialize.bytesToInt(f.read(3)) << 12
f.seek(offset2)
length = serialize.bytesToInt(f.read(4))
compression_type = serialize.bytesToInt(f.read(1))
# 1 byte for compression_type
data = f.read(length - 1)
# Gzip
if compression_type == 1:
unpackedData = zlib.decompress(data, 15 + 16)
# Zlib
elif compression_type == 2:
unpackedData = zlib.decompress(data)
else:
raise ValueError("Unsupported compression type")
nbt_data = nbt.read(unpackedData)
level_data = nbt_data[""]["Level"]
#with open("chunk.json", "w") as jsonf:
#jsonf.write(json.dumps(nbt_data, indent=4))
#sys.exit(0)
self.blocks = []
if ext == "mca":
# Anvil file format
for section in level_data["Sections"]:
self.blocks.append(MCSection(level_data, section, x, z, section["Y"], True))
elif ext == "mcr":
# Old file format
for yslice in range(8):
self.blocks.append(MCSection(nbt_data, section, x, z, yslice, False))
def _read(self):
mtime = os.path.getmtime(self.filename)
if mtime > self.mtime:
self.cache = nbt.read(self.filename)
self.mtime = mtime