cultures-extract.py

#!/usr/bin/env python

from struct import pack, unpack
import re
import os, errno
import os.path

def mkdir_p(path):
    try:
        os.makedirs(path)
    except OSError as exc: # Python >2.5
        if exc.errno == errno.EEXIST and os.path.isdir(path):
            pass
        else: raise

with open('data0002.lib', 'rb') as f:
  def readi32():
    return unpack("<i", f.read(4))[0]
  def readi16():
    return unpack("<H", f.read(2))[0]

  f.read(4)
  dir_count = readi32()
  file_count = readi32()

  # Skip meaningless directory info.
  for i in xrange(dir_count):
    length = readi32()
    path = f.read(length).decode("latin-1")
    count = readi32()

  # Read file info.
  files = []
  for i in xrange(file_count):
    length = readi32()
    path = f.read(length).decode("latin-1")
    num1 = readi32()
    num2 = readi32()
    files.append((path, num1, num2))

  # Extract files.
  for t in files:
    path = "./unpacked/" + t[0].replace('\\', '/')
    print path
    f.seek(t[1])
    data = f.read(t[2])
    mkdir_p(os.path.dirname(path))
    with open(path, 'w') as out:
      out.write(data)
      out.close()