def addRevisions():
for i in range(1000):
rev = chain.createRevision()
cx, cz = choice(chunkPositions)
tag = readChunk(rev, cx, cz)
tag["Level"]["touched"] = nbt.TAG_Byte(1)
writeChunk(rev, cx, cz, tag)
def chestWithItemID(cls, itemID, count=64, damage=0):
""" Creates a chest with a stack of 'itemID' in each slot.
Optionally specify the count of items in each stack. Pass a negative
value for damage to create unnaturally sturdy tools. """
rootTag = nbt.TAG_Compound()
invTag = nbt.TAG_List()
rootTag["Inventory"] = invTag
for slot in range(9, 36):
itemTag = nbt.TAG_Compound()
itemTag["Slot"] = nbt.TAG_Byte(slot)
itemTag["Count"] = nbt.TAG_Byte(count)
itemTag["id"] = nbt.TAG_Short(itemID)
itemTag["Damage"] = nbt.TAG_Short(damage)
invTag.append(itemTag)
chest = INVEditChest(rootTag, "")
return chest
def insertChildren(self, position, count, columns):
if position < 0 or position > len(self.childItems):
return False
for row in range(count):
data = nbt.TAG_Byte()
self.tag.insert(position, data)
item = NBTTreeItem(data, self)
self.childItems.insert(position, item)
return 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 buildNBTTag(self):
"""
Return a TAG_Compound for saving this section to a chunk.
"""
section_tag = self.old_section_tag
Blocks = self.Blocks
Data = packNibbleArray(self.Data)
BlockLight = packNibbleArray(self.BlockLight)
SkyLight = packNibbleArray(self.SkyLight)
add = Blocks >> 8
if add.any():
section_tag["Add"] = nbt.TAG_Byte_Array(packNibbleArray(add).astype('uint8'))
section_tag['Blocks'] = nbt.TAG_Byte_Array(numpy.array(Blocks, 'uint8'))
section_tag['Data'] = nbt.TAG_Byte_Array(Data)
section_tag['BlockLight'] = nbt.TAG_Byte_Array(BlockLight)
section_tag['SkyLight'] = nbt.TAG_Byte_Array(SkyLight)
section_tag["Y"] = nbt.TAG_Byte(self.Y)
return section_tag
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
def __init__(self,
shape=None,
filename=None,
blocktypes='Alpha',
readonly=False,
resume=False):
"""
Creates an object which stores a section of a Minecraft world as an
NBT structure. The order of the coordinates for the block arrays in
the file is y,z,x. This is the same order used in Minecraft 1.4's
chunk sections.
:type shape: tuple
:param shape: The shape of the schematic as (x, y, z)
:type filename: basestring
:param filename: Path to a file to load a saved schematic from.
:type blocktypes: basestring or BlockTypeSet
:param blocktypes: The name of a builtin blocktypes set (one of
"Classic", "Alpha", "Pocket") to indicate allowable blocks. The default
is Alpha. An instance of BlockTypeSet may be passed instead.
:rtype: SchematicFileAdapter
"""
self.EntityRef = PCEntityRef
self.TileEntityRef = PCTileEntityRef
if filename is None and shape is None:
raise ValueError("shape or filename required to create %s" %
self.__class__.__name__)
if filename:
self.filename = filename
if os.path.exists(filename):
rootTag = nbt.load(filename)
else:
rootTag = None
else:
self.filename = None
rootTag = None
if blocktypes in blocktypeClassesByName:
self.blocktypes = blocktypeClassesByName[blocktypes]()
else:
assert (isinstance(blocktypes, BlockTypeSet))
self.blocktypes = blocktypes
if rootTag:
self.rootTag = rootTag
if "Materials" in rootTag:
self.blocktypes = blocktypeClassesByName[self.Materials]()
else:
rootTag["Materials"] = nbt.TAG_String(self.blocktypes.name)
w = self.rootTag["Width"].value
l = self.rootTag["Length"].value
h = self.rootTag["Height"].value
assert self.rootTag["Blocks"].value.size == w * l * h
self._Blocks = self.rootTag["Blocks"].value.astype(
'uint16').reshape(h, l, w) # _Blocks is y, z, x
del self.rootTag["Blocks"]
if "AddBlocks" in self.rootTag:
# Use WorldEdit's "AddBlocks" array to load and store the 4 high bits of a block ID.
# Unlike Minecraft's NibbleArrays, this array stores the first block's bits in the
# 4 high bits of the first byte.
size = (h * l * w)
# If odd, add one to the size to make sure the adjacent slices line up.
add = numpy.empty(size + (size & 1), 'uint16')
# Fill the even bytes with data
add[::2] = self.rootTag["AddBlocks"].value
# Copy the low 4 bits to the odd bytes
add[1::2] = add[::2] & 0xf
# Shift the even bytes down
add[::2] >>= 4
# Shift every byte up before merging it with Blocks
add <<= 8
self._Blocks |= add[:size].reshape(h, l, w)
del self.rootTag["AddBlocks"]
self.rootTag["Data"].value = self.rootTag["Data"].value.reshape(
h, l, w)
if "Biomes" in self.rootTag:
self.rootTag["Biomes"].value.shape = (l, w)
# If BlockIDs is present, it contains an ID->internalName mapping
# from the source level's FML tag.
if "BlockIDs" in self.rootTag:
self.blocktypes.addBlockIDsFromSchematicTag(
self.rootTag["BlockIDs"])
# If itemStackVersion is present, it was exported from MCEdit 2.0.
# Its value is either 17 or 18, the values of the version constants.
# ItemIDs will also be present.
# If itemStackVersion is not present, this schematic was exported from
# WorldEdit or MCEdit 1.0. The itemStackVersion cannot be determined
# without searching the entities for an itemStack and checking
# the type of its `id` tag. If no itemStacks are found, the
# version defaults to 1.8 which does not need an ItemIDs tag.
if "itemStackVersion" in self.rootTag:
itemStackVersion = self.rootTag["itemStackVersion"].value
if itemStackVersion not in (VERSION_1_7, VERSION_1_8):
raise LevelFormatError("Unknown item stack version %d" %
itemStackVersion)
if itemStackVersion == VERSION_1_7:
itemIDs = self.rootTag.get("ItemIDs")
if itemIDs is not None:
self.blocktypes.addItemIDsFromSchematicTag(itemIDs)
self.blocktypes.itemStackVersion = itemStackVersion
else:
self.blocktypes.itemStackVersion = self.getItemStackVersionFromEntities(
)
else:
rootTag = nbt.TAG_Compound(name="Schematic")
rootTag["Height"] = nbt.TAG_Short(shape[1])
rootTag["Length"] = nbt.TAG_Short(shape[2])
rootTag["Width"] = nbt.TAG_Short(shape[0])
rootTag["Entities"] = nbt.TAG_List()
rootTag["TileEntities"] = nbt.TAG_List()
rootTag["Materials"] = nbt.TAG_String(self.blocktypes.name)
rootTag["itemStackVersion"] = nbt.TAG_Byte(
self.blocktypes.itemStackVersion)
self._Blocks = zeros((shape[1], shape[2], shape[0]), 'uint16')
rootTag["Data"] = nbt.TAG_Byte_Array(
zeros((shape[1], shape[2], shape[0]), uint8))
rootTag["Biomes"] = nbt.TAG_Byte_Array(
zeros((shape[2], shape[0]), uint8))
self.rootTag = rootTag
self.rootTag["BlockIDs"] = blockIDMapping(blocktypes)
itemMapping = itemIDMapping(blocktypes)
if itemMapping is not None:
self.rootTag[
"ItemIDs"] = itemMapping # Only present for Forge 1.7
# Expand blocks and data to chunk edges
h16 = (self.Height + 15) & ~0xf
l16 = (self.Length + 15) & ~0xf
w16 = (self.Width + 15) & ~0xf
blocks = self._Blocks
self._Blocks = numpy.zeros((h16, l16, w16), blocks.dtype)
self._Blocks[:blocks.shape[0], :blocks.shape[1], :blocks.
shape[2]] = blocks
data = self.rootTag["Data"].value
self.rootTag["Data"].value = numpy.zeros((h16, l16, w16), data.dtype)
self.rootTag["Data"].value[:data.shape[0], :data.shape[1], :data.
shape[2]] = data
self.rootTag["Data"].value &= 0xF # discard high bits
self.entitiesByChunk = defaultdict(list)
for tag in self.rootTag["Entities"]:
ref = self.EntityRef(tag)
pos = ref.Position
cx, cy, cz = pos.chunkPos()
self.entitiesByChunk[cx, cz].append(tag)
self.tileEntitiesByChunk = defaultdict(list)
for tag in self.rootTag["TileEntities"]:
ref = self.TileEntityRef(tag)
pos = ref.Position
cx, cy, cz = pos.chunkPos()
self.tileEntitiesByChunk[cx, cz].append(tag)
