RPGMAKER 2k(3) "protection" unfucker so you can open games in the editor

unfucker.py

import os

EXTENSIONS = ("lmu", "ldb", "lmt")

GOOD_DATA = {
    "lmu": b"\x0aLcfMapUnit",
    "ldb": b"\x0BLcfDataBase",
    "lmt": b"\x0aLcfMapTree",
}

files = filter(lambda x: x.split(".")[-1].lower() in EXTENSIONS, os.listdir("."))
for fname in files:
    with open(fname, "rb") as readf:
        data = readf.read()
    patched = GOOD_DATA[fname.split(".")[-1].lower()]
    patched += data[len(patched):]

    with open(fname, "wb") as writef:
        writef.write(patched)

print("done")