mirror of
https://github.com/notwa/mm
synced 2024-11-05 02:29:03 -08:00
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
def try_scene(f):
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f.seek(0)
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while True:
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command = f.read(8)
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if len(command) == 0:
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return False
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if command[2:4] != b'\x00\x00':
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return False
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if command[0] > 0x1e:
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return False
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if command[4] != 0x02 and command[4] != 0x00:
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if command[0] not in (0x05, 0x10, 0x11, 0x12):
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return False
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if command == b'\x14\x00\x00\x00\x00\x00\x00\x00':
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return True
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def try_room(f):
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# note: doesn't detect syotes_room_0 because it's missing a header
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f.seek(0)
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while True:
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command = f.read(8)
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if len(command) == 0:
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return False
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if command[2:4] != b'\x00\x00':
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return False
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if command[0] > 0x1e:
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return False
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if command[4] != 0x03 and command[4] != 0x00:
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if command[0] not in (0x05, 0x10, 0x11, 0x12):
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return False
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if command == b'\x14\x00\x00\x00\x00\x00\x00\x00':
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return True
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def detect_format(f, fn=None):
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if try_scene(f):
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return 'scene'
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if try_room(f):
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return 'room'
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return None
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