Astral Chain dat(/dtt?)

extract_dat1.py

#too lazy to finish this, throwing it here
from struct import unpack

def full(f):
    return unpack("<I", f.read(4))[0]

def getstr(f):
    ret = b"";char = f.read(1)
    while char != b"\x00":
        ret += char
        char = f.read(1)
    return ret

do_debug = False

with open("wp/wp/wp0000.dat", "rb") as f:
    assert f.read(4) == b"DAT\x00"
    file_count, file_table_offset, ext_table_offset, name_table_offset, \
        size_table_offset, unk_table = unpack("<6I", f.read(0x18))
    assert full(f) == 0

    f.seek(file_table_offset)
    file_table = [full(f) for i in range(file_count)]
    
    f.seek(ext_table_offset)
    ext_table = [getstr(f) for i in range(file_count)]
    
    f.seek(name_table_offset)
    name_size = full(f)
    name_table = [f.read(name_size).rstrip("\x00") for i in range(file_count)]
    
    f.seek(size_table_offset)
    size_table = [full(f) for i in range(file_count)]

    if do_debug:
        for i in range(file_count):
            print("%08X %08X %s" % (file_table[i], size_table[i], name_table[i]))