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Added save game decoding. #1

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Added save game decoding. #1

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18 changes: 17 additions & 1 deletion extract.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,21 @@ def bytes_(i: int, data: bytes, chunksize=1, length: int = None, end: int = None
raise Exception('Invalid arguments to bytes_ typefunc')
return endpoint-i, data[i:endpoint]

def plugininfo(i: int, data: bytes, length=None) -> Tuple[int, dict]:
i_old = i
ln, pluginCount = uint8(i, data)
i+=ln # add read length
json={}
json["pluginCount"] = pluginCount
json["plugins"] = list()
for x in range(0, pluginCount):
ln, pluginFileName = wstring(i, data)
i+= ln
json["plugins"].append(pluginFileName)
# end for
assert(i_old + length == i)
return length, json

def encode_bytes(data: bytes) -> bytes:
return data

Expand Down Expand Up @@ -140,7 +155,7 @@ def encode_flags(flags: Set[int]) -> bytes:
(uint8, 'formversion', {}),
(wstring, 'gameversion', {'game': 'fallout4'}),
(uint32, 'plugininfosize', {}),
(bytes_, 'plugininfo', {'length': 'plugininfosize'}),
(plugininfo, 'plugininfo', {'length': 'plugininfosize'}),
# File location table
(uint32, 'formidarraycountoffset', {}),
(uint32, 'unknowntable3offset', {}),
Expand Down Expand Up @@ -432,6 +447,7 @@ def parse_savedata(rawdata: bytes) -> Tuple[str, Dict[str, Any]]:
for k,v in rawargs.items() if k != 'game'}
offset, data[key] = typefunc(i, rawdata, **args)
i += offset
assert i <= len(rawdata)
assert i == len(rawdata)
return game, data

Expand Down