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Minecraft-Overviewer/contrib/rerenderBlocks.py
2012-01-01 17:56:31 -05:00

70 lines
2.0 KiB
Python

#!/usr/bin/python
'''
Generate a region list to rerender certain chunks
This is used to force the regeneration of any chunks that contain a certain
blockID. The output is a chunklist file that is suitable to use with the
--chunklist option to overviewer.py.
Example:
python contrib/rerenderBlocks.py --ids=46,79,91 --world=world/> regionlist.txt
python overviewer.py --regionlist=regionlist.txt world/ output_dir/
This will rerender any chunks that contain either TNT (46), Ice (79), or
a Jack-O-Lantern (91)
'''
from optparse import OptionParser
import sys,os
import re
# incantation to be able to import overviewer_core
if not hasattr(sys, "frozen"):
sys.path.insert(0, os.path.abspath(os.path.join(os.path.split(__file__)[0], '..')))
from overviewer_core import nbt
from overviewer_core import world
from overviewer_core.chunk import get_blockarray
parser = OptionParser()
parser.add_option("--ids", dest="ids", type="string")
parser.add_option("--world", dest="world", type="string")
options, args = parser.parse_args()
if not options.world or not options.ids:
parser.print_help()
sys.exit(1)
if not os.path.exists(options.world):
raise Exception("%s does not exist" % options.world)
ids = map(lambda x: int(x),options.ids.split(","))
sys.stderr.write("Searching for these blocks: %r...\n" % ids)
matcher = re.compile(r"^r\..*\.mcr$")
for dirpath, dirnames, filenames in os.walk(options.world):
for f in filenames:
if matcher.match(f):
full = os.path.join(dirpath, f)
r = nbt.load_region(full, 'lower-left')
chunks = r.get_chunks()
found = False
for x,y in chunks:
chunk = r.load_chunk(x,y).read_all()
blocks = get_blockarray(chunk[1]['Level'])
for i in ids:
if chr(i) in blocks:
print full
found = True
break
if found:
break