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 fromstring() calls are designed to raise if there are any
# issues, but still be speedy.
# Loop through the sections and unpack anything that we find.
for tag in level["Sections"].tags:
index = tag["Y"].value
section = Section()
section.blocks = array("B")
section.blocks.fromstring(tag["Blocks"].value)
section.metadata = array("B", unpack_nibbles(tag["Data"].value))
section.skylight = array("B",
unpack_nibbles(tag["SkyLight"].value))
chunk.sections[index] = section
chunk.heightmap = array("B")
chunk.heightmap.fromstring(level["HeightMap"].value)
chunk.blocklight = array("B",
unpack_nibbles(level["BlockLight"].value))
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:
log.msg("Unknown entity %s" % tag["id"].value)
log.msg("Tag for entity:")
log.msg(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:
log.msg("Unknown tile entity %s" % tag["id"].value)
log.msg("Tag for tile:")
log.msg(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 fromstring() calls are designed to raise if there are any
# issues, but still be speedy.
# Loop through the sections and unpack anything that we find.
for tag in level["Sections"].tags:
index = tag["Y"].value
section = Section()
section.blocks = array("B")
section.blocks.fromstring(tag["Blocks"].value)
section.metadata = array("B", unpack_nibbles(tag["Data"].value))
section.skylight = array("B",
unpack_nibbles(tag["SkyLight"].value))
chunk.sections[index] = section
chunk.heightmap = array("B")
chunk.heightmap.fromstring(level["HeightMap"].value)
chunk.blocklight = array("B",
unpack_nibbles(level["BlockLight"].value))
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:
log.msg("Unknown entity %s" % tag["id"].value)
log.msg("Tag for entity:")
log.msg(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:
log.msg("Unknown tile entity %s" % tag["id"].value)
log.msg("Tag for tile:")
log.msg(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:
log.msg("Unknown entity %s" % tag["id"].value)
log.msg("Tag for entity:")
log.msg(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:
log.msg("Unknown tile entity %s" % tag["id"].value)
log.msg("Tag for tile:")
log.msg(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:
log.msg("Unknown entity %s" % tag["id"].value)
log.msg("Tag for entity:")
log.msg(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:
log.msg("Unknown tile entity %s" % tag["id"].value)
log.msg("Tag for tile:")
log.msg(tag.pretty_tree())
chunk.dirty = not chunk.populated
def test_nibble_reflexivity(self):
self.assertEqual("nibbles", pack_nibbles(unpack_nibbles("nibbles")))
def test_unpack_nibbles_multiple(self):
self.assertEqual(unpack_nibbles("nibbles"),
array("B", [14, 6, 9, 6, 2, 6, 2, 6, 12, 6, 5, 6, 3, 7])
)
def test_unpack_nibbles_single(self):
self.assertEqual(unpack_nibbles("a"), array("B", [1, 6]))
def test_unpack_nibbles(self):
assert_array_equal(unpack_nibbles("a"), [1, 6])
assert_array_equal(unpack_nibbles("nibbles"),
[14, 6, 9, 6, 2, 6, 2, 6, 12, 6, 5, 6, 3, 7])
def test_nibble_reflexivity(self):
self.assertEqual("nibbles", pack_nibbles(unpack_nibbles("nibbles")))
def test_unpack_nibbles_multiple(self):
self.assertEqual(
unpack_nibbles("nibbles"),
array("B", [14, 6, 9, 6, 2, 6, 2, 6, 12, 6, 5, 6, 3, 7]))
def test_unpack_nibbles_single(self):
self.assertEqual(unpack_nibbles("a"), array("B", [1, 6]))
def test_unpack_nibbles(self):
assert_array_equal(unpack_nibbles("a"), [1, 6])
assert_array_equal(unpack_nibbles("nibbles"),
[14, 6, 9, 6, 2, 6, 2, 6, 12, 6, 5, 6, 3, 7])