trim.py

import re
import os.path
from glob import glob

fn_regex = re.compile(r"^c\.(\-?[a-z0-9]+)\.(\-?[a-z0-9]+)\.dat")

total = 0
to_delete = 0

for f in glob("world/*/*/c.*.dat"):
    m = fn_regex.match(os.path.basename(f))
    if m:
        total = total + 1
        x = int(m.group(1), 36)
        y = int(m.group(2), 36)
        if x * 16 < -1263: # Change x,y here
            to_delete = to_delete + 1
            os.remove(f)
            print "%s,%s" % (x, y)

print "Deleting %d/%d (%.2f%%)" % (to_delete, total, to_delete / float(total) * 100)

thanks for this. Unfortunately I am not really knowledgable in python. Given the risks of faulty deletions (yeah I know I have to backup the map anyhow) it would be great to make this foolproof for use.

Questions:
What do I change to delete all coordinates

• beyond 1000
• beyond -1000
• x and y

it looks to me to change line 16 to the respective number and the x to y, but do I have to change the < to > if the number is positive too?
Command line parameters would be great here!

if x * 16 < -1000 or x * 16 > 1000 or y * 16 < -1000 or y * 16 > 1000:

Oh, I'd remove os.remove(f) and have it do a dry run first, just in case.