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HuneX hph/hpb unpacker for Nijigasaki VN Switch Demo
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| import struct | |
| from zlib import crc32 | |
| from pathlib import Path | |
| import sys | |
| # Based on https://github.com/YuriSizuku/GalgameReverse/blob/master/project/hunex/src/hunex_hpb.py | |
| packname = sys.argv[1] | |
| f = open(f'{packname}.hph', 'rb') | |
| data_f = open(f'{packname}.hpb', 'rb') | |
| magic, version, count, size, nameoffset = struct.unpack('<5I12x', f.read(32)) | |
| assert magic == int.from_bytes(b'HPAC', 'little') | |
| offset = f.tell() | |
| f.seek(nameoffset, 0) | |
| paths = list(map(lambda x: x.decode(), f.read().split(b'\0')[:count])) | |
| f.seek(offset, 0) | |
| print(f'filesize: {size}, itemcnt: {count}') | |
| for i in range(count): | |
| data = f.read(32) | |
| # TODO: QIQI or I4xII4xI? | |
| item = struct.unpack('<QIQI8x', data) | |
| itemoffset, itemsize, itemcrc = item[0], item[2], item[3] | |
| print(f'offset:{itemoffset} size:{itemsize} crc:{itemcrc:08x} -> {paths[i]}') | |
| if itemsize == 0: | |
| continue | |
| data_f.seek(itemoffset, 0) | |
| itemdata = data_f.read(itemsize) | |
| assert itemcrc == crc32(itemdata) | |
| p = (Path(f'{packname}_out') / paths[i]) | |
| p.parent.mkdir(parents=True, exist_ok=True) | |
| with p.open('wb') as item_f: | |
| item_f.write(itemdata) |
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