FC Quest Dump

import struct
import sys

def get_str(pos, filedata):
    return filedata[pos:filedata.find(b'\x00', pos)].decode(
        'cp932')

class Quest(object):
    def __init__(self):
        self.name = ''
        self.lines = []
    def __repr__(self):
        return self.name

sys.argv.append('T_QUEST._DT')
#Strip out linebreaks and change fullwidth spaces to regular spaces
#Ended up not using this
trans_tbl = dict(((1, None),
                  (ord('　'), ' ')))
ptr_start = 0x0
ptr_end = 0xAE

with open(sys.argv[1], 'rb') as f:
    filedata = f.read()

quests = []
ptrs = tuple(struct.unpack(
    '<H', filedata[x:x+2])[0] for x in range(ptr_start, ptr_end, 2))
for ptr in ptrs:
    quest = Quest()
    quest_ptrs = tuple(struct.unpack('<H', filedata[x:x+2])[0] for x in range(
        ptr + 0x12, ptr + 0x12 + 0x24, 2))
    quest.name = get_str(quest_ptrs[0], filedata)
    quest.desc = get_str(quest_ptrs[1], filedata)
    for ptr2 in quest_ptrs[2:]:
        quest.lines.append(get_str(ptr2, filedata))
##        quest.lines.append(get_str(ptr2, filedata).translate(trans_tbl))
    quests.append(quest)
with open('questdump.tsv', 'w', encoding='utf-8') as f:
    for i, quest in enumerate(quests):
        f.write('{}\tName:\t{}\n\tIntro:\t'.format(i, quest.name))
        f.write(quest.desc.replace('\x01', '\n\t\t'))
        f.write('\n')
        for j, line in enumerate(quest.lines):
            f.write('\t{}\t{}\n'.format(j, line.replace('\x01', '\n\t\t')))