def __set__(self, instance, value):
uuidInt = value.int
least = uuidInt & 0xffffffffffffffffL
most = (uuidInt >> 64) & 0xffffffffffffffffL
tag = instance.rootTag
tag["UUIDLeast"] = nbt.TAG_Long(_signed(least))
tag["UUIDMost"] = nbt.TAG_Long(_signed(most))
instance.dirty = True
def _create(self):
chunkTag = nbt.TAG_Compound()
chunkTag.name = ""
levelTag = nbt.TAG_Compound()
chunkTag["Level"] = levelTag
levelTag["HeightMap"] = nbt.TAG_Int_Array(numpy.zeros((16, 16), 'uint32').newbyteorder())
levelTag["TerrainPopulated"] = nbt.TAG_Byte(1)
levelTag["xPos"] = nbt.TAG_Int(self.cx)
levelTag["zPos"] = nbt.TAG_Int(self.cz)
levelTag["LastUpdate"] = nbt.TAG_Long(0)
levelTag["Entities"] = nbt.TAG_List()
levelTag["TileEntities"] = nbt.TAG_List()
self.rootTag = chunkTag
self.dirty = True
def created_nbt():
# The root of an NBT file is always a TAG_Compound.
level = nbt.TAG_Compound(name="MinecraftLevel")
# Subtags of a TAG_Compound are automatically named when you use the [] operator.
level["About"] = nbt.TAG_Compound()
level["About"]["Author"] = nbt.TAG_String("codewarrior")
level["About"]["CreatedOn"] = nbt.TAG_Long(time.time())
level["Environment"] = nbt.TAG_Compound()
level["Environment"]["SkyBrightness"] = nbt.TAG_Byte(16)
level["Environment"]["SurroundingWaterHeight"] = nbt.TAG_Short(32)
level["Environment"]["FogColor"] = nbt.TAG_Int(0xcccccc)
entity = nbt.TAG_Compound()
entity["id"] = nbt.TAG_String("Creeper")
entity["Pos"] = nbt.TAG_List(
[nbt.TAG_Float(d) for d in (32.5, 64.0, 33.3)])
level["Entities"] = nbt.TAG_List([entity])
spawn = nbt.TAG_List(
(nbt.TAG_Short(100), nbt.TAG_Short(45), nbt.TAG_Short(55)))
mapTag = nbt.TAG_Compound()
mapTag["Spawn"] = spawn
level["Map"] = mapTag
mapTag2 = nbt.TAG_Compound([spawn])
mapTag2.name = "Map"
# I think it looks more familiar with [] syntax.
l, w, h = 128, 128, 128
mapTag["Height"] = nbt.TAG_Short(h) # y dimension
mapTag["Length"] = nbt.TAG_Short(l) # z dimension
mapTag["Width"] = nbt.TAG_Short(w) # x dimension
# Byte arrays are stored as numpy.uint8 arrays.
mapTag["Blocks"] = nbt.TAG_Byte_Array()
mapTag["Blocks"].value = numpy.zeros(
l * w * h, dtype=numpy.uint8) # create lots of air!
# The blocks array is indexed (y,z,x) for indev levels, so reshape the blocks
mapTag["Blocks"].value.shape = (h, l, w)
# Replace the bottom layer of the indev level with wood
mapTag["Blocks"].value[0, :, :] = 5
# This is a great way to learn the power of numpy array slicing and indexing.
mapTag["Data"] = nbt.TAG_Byte_Array()
mapTag["Data"].value = numpy.zeros(l * w * h, dtype=numpy.uint8)
# Save a few more tag types for completeness
level["ShortArray"] = nbt.TAG_Short_Array(
numpy.zeros((16, 16), dtype='uint16'))
level["IntArray"] = nbt.TAG_Int_Array(numpy.zeros((16, 16),
dtype='uint32'))
level["Float"] = nbt.TAG_Float(0.3)
return level
