def load_from_tag(chunk, tag):
level = tag["Level"]
# These are designed to raise if there are any issues, but still be
# speedy.
chunk.blocks = fromstring(level["Blocks"].value,
dtype=uint8).reshape(chunk.blocks.shape)
chunk.heightmap = fromstring(level["HeightMap"].value,
dtype=uint8).reshape(chunk.heightmap.shape)
chunk.blocklight = array(unpack_nibbles(
level["BlockLight"].value)).reshape(chunk.blocklight.shape)
chunk.metadata = array(unpack_nibbles(
level["Data"].value)).reshape(chunk.metadata.shape)
chunk.skylight = array(unpack_nibbles(
level["SkyLight"].value)).reshape(chunk.skylight.shape)
chunk.populated = bool(level["TerrainPopulated"])
if "TileEntities" in level:
for tag in level["TileEntities"].tags:
try:
tile = chunk.known_tile_entities[tag["id"].value]()
tile.load_from_tag(tag)
chunk.tiles[tile.x, tile.y, tile.z] = tile
except:
print "Unknown tile entity %s" % tag["id"].value
chunk.dirty = not chunk.populated
def _load_chunk_from_tag(self, chunk, tag):
"""
Load a chunk from a tag.
We cannot instantiate chunks, ever, so pass it in from above.
"""
level = tag["Level"]
# These are designed to raise if there are any issues, but still be
# speedy.
chunk.blocks = fromstring(level["Blocks"].value,
dtype=uint8).reshape(chunk.blocks.shape)
chunk.heightmap = fromstring(level["HeightMap"].value,
dtype=uint8).reshape(
chunk.heightmap.shape)
chunk.blocklight = array(unpack_nibbles(
level["BlockLight"].value)).reshape(chunk.blocklight.shape)
chunk.metadata = array(unpack_nibbles(level["Data"].value)).reshape(
chunk.metadata.shape)
chunk.skylight = array(unpack_nibbles(
level["SkyLight"].value)).reshape(chunk.skylight.shape)
chunk.populated = bool(level["TerrainPopulated"])
if "Entities" in level:
for tag in level["Entities"].tags:
try:
entity = self._load_entity_from_tag(tag)
chunk.entities.add(entity)
except KeyError:
print "Unknown entity %s" % tag["id"].value
print "Tag for entity:"
print tag.pretty_tree()
if "TileEntities" in level:
for tag in level["TileEntities"].tags:
try:
tile = self._load_tile_from_tag(tag)
chunk.tiles[tile.x, tile.y, tile.z] = tile
except KeyError:
print "Unknown tile entity %s" % tag["id"].value
print "Tag for tile:"
print tag.pretty_tree()
chunk.dirty = not chunk.populated
def _load_chunk_from_tag(self, chunk, tag):
"""
Load a chunk from a tag.
We cannot instantiate chunks, ever, so pass it in from above.
"""
level = tag["Level"]
# These are designed to raise if there are any issues, but still be
# speedy.
chunk.blocks = fromstring(level["Blocks"].value,
dtype=uint8).reshape(chunk.blocks.shape)
chunk.heightmap = fromstring(level["HeightMap"].value,
dtype=uint8).reshape(chunk.heightmap.shape)
chunk.blocklight = array(unpack_nibbles(
level["BlockLight"].value)).reshape(chunk.blocklight.shape)
chunk.metadata = array(unpack_nibbles(
level["Data"].value)).reshape(chunk.metadata.shape)
chunk.skylight = array(unpack_nibbles(
level["SkyLight"].value)).reshape(chunk.skylight.shape)
chunk.populated = bool(level["TerrainPopulated"])
if "Entities" in level:
for tag in level["Entities"].tags:
try:
entity = self._load_entity_from_tag(tag)
chunk.entities.add(entity)
except KeyError:
print "Unknown entity %s" % tag["id"].value
print "Tag for entity:"
print tag.pretty_tree()
if "TileEntities" in level:
for tag in level["TileEntities"].tags:
try:
tile = self._load_tile_from_tag(tag)
chunk.tiles[tile.x, tile.y, tile.z] = tile
except KeyError:
print "Unknown tile entity %s" % tag["id"].value
print "Tag for tile:"
print tag.pretty_tree()
chunk.dirty = not chunk.populated
def load_from_tag(chunk, tag):
level = tag["Level"]
chunk.blocks.ravel()[:] = [ord(i) for i in level["Blocks"].value]
chunk.heightmap.ravel()[:] = [ord(i)
for i in level["HeightMap"].value]
chunk.blocklight.ravel()[:] = unpack_nibbles(level["BlockLight"].value)
chunk.metadata.ravel()[:] = unpack_nibbles(level["Data"].value)
chunk.skylight.ravel()[:] = unpack_nibbles(level["SkyLight"].value)
chunk.populated = bool(level["TerrainPopulated"])
if "TileEntities" in level:
for tag in level["TileEntities"].tags:
try:
tile = chunk.known_tile_entities[tag["id"].value]()
tile.load_from_tag(tag)
chunk.tiles[tile.x, tile.y, tile.z] = tile
except:
print "Unknown tile entity %s" % tag["id"].value
chunk.dirty = not chunk.populated
def load_from_packet(self, packet):
cx, bx = divmod(packet.x, 16)
cz, bz = divmod(packet.z, 16)
if (cx != self.x) or (cz != self.z):
print "loading packet data in wrong chunk location"
print cx, cz, self.x, self.z
return
self.fresh = False
by = packet.y
# protocol subtracts 1 before sending to a packet
x_size = packet.x_size + 1
y_size = packet.y_size + 1
z_size = packet.z_size + 1
ex = bx + x_size
ez = bz + z_size
ey = by + y_size
# indices for reading the packet data
meta_index = x_size * z_size * y_size
sky_index = meta_index
light_index = meta_index * 2
# read packet data into an array
block_data = fromstring(packet.data[:meta_index], dtype=uint8).reshape(x_size, z_size, y_size)
nibbles = array(unpack_nibbles(packet.data[meta_index:]))
# took me forever to figure this out!
self.blocks[bx:ex, bz:ez, by:ey] = block_data
self.metadata[bx:ex, bz:ez, by:ey] = nibbles[:sky_index].reshape(x_size, z_size, y_size)
self.skylight[bx:ex, bz:ez, by:ey] = nibbles[sky_index:light_index].reshape(x_size, z_size, y_size)
self.blocklight[bx:ex, bz:ez, by:ey] = nibbles[light_index:].reshape(x_size, z_size, y_size)
