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@Muon
Created March 17, 2013 02:51
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import struct
header = struct.Struct("<5s58s256s256s6s")
playerinfo1 = struct.Struct("<64sH")
playerinfo2 = struct.Struct("<256s4I48s")
def modify_scn(filename, changes):
with open(filename, "rb+") as scn:
data = scn.read()
offset = 0
magic, unknown1, music_path, scenario_monitor_path, unknown2 = header.unpack_from(data, offset)
assert magic == b"CHSCN"
offset += header.size
for i in range(15):
# Need to read this in two parts, as struct does not handle length-prefixed
# strings.
name, desclen = playerinfo1.unpack_from(data, offset)
offset += playerinfo1.size
desc = data[offset:offset + desclen]
offset += desclen
skin_path, unknown3, start_lc, unknown4, start_qp, unknown5 = playerinfo2.unpack_from(data, offset)
if start_lc > 0 and changes.start_lc is not None:
start_lc = changes.start_lc
if start_qp > 0 and changes.start_qp is not None:
start_qp = changes.start_qp
scn.seek(offset)
scn.write(playerinfo2.pack(skin_path, unknown3, start_lc, unknown4, start_qp, unknown5))
offset += playerinfo2.size
if __name__ == "__main__":
from optparse import OptionParser
parser = OptionParser(description="Modify information in Achron .scn files",
usage="usage: %prog [options] FILE [FILE ...]")
parser.add_option("--start-lc", dest="start_lc", type="int",
help="set all the players' starting LC", metavar="LC")
parser.add_option("--start-qp", dest="start_qp", type="int",
help="set all the players' starting QP", metavar="QP")
options, args = parser.parse_args()
for arg in args:
modify_scn(arg, options)
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