mirror of
https://github.com/a2-4am/4cade.git
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66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
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#!/usr/bin/env python3
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# flags
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# -d include game display name (default off = display name will be 0-length string)
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# parameters
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# stdin - input containing slideshow (e.g. some file in res/SS/)
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# stdout - binary OKVS data structure
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# 1 - list of games with metadata (e.g. build/GAMES.CONF)
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import argparse
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import struct
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import sys
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# indexes into |flags| as string
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iNeedsJoystick = 0
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iNeeds128K = 1
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# maps of flag raw string value -> value in final flags byte
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kNeedsJoystick = {'0': 0, '1': 128}
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kNeeds128K = {'0': 0, '1': 64}
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def build(records, args):
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with open(args.games_file, 'r') as games_file_handle:
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games_list = [x.strip() for x in games_file_handle.readlines()]
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games_list = [x.replace('=',',').split(',')
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for x in games_list
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if x and x[0] not in ('#', '[')]
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games_cache = {}
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for flags, key, displayname in games_list:
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games_cache[key] = (flags, args.displayname and displayname or "")
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record_count = len(records)
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# yield OKVS header (2 x 2 bytes, unsigned int, little-endian)
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yield struct.pack('<2H', record_count, 0)
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for key, dummy, value in records:
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filename = value or key
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flags, displayname = games_cache[filename]
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# yield record length (1 byte)
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yield struct.pack('B', len(key) + len(value) + len(displayname) + 5)
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# yield key (Pascal-style string)
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yield struct.pack(f'{len(key)+1}p', key.encode('ascii'))
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# yield value (Pascal-style string)
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yield struct.pack(f'{len(value)+1}p', value.encode('ascii'))
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# yield display name (Pascal-style string)
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yield struct.pack(f'{len(displayname)+1}p', displayname.encode('ascii'))
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# yield flags
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yield struct.pack('B', kNeedsJoystick[flags[iNeedsJoystick]] + \
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kNeeds128K[flags[iNeeds128K]])
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="Build indexed OKVS structure from slideshow configuration file")
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parser.add_argument("games_file")
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parser.add_argument("-d", "--displayname", action="store_true", default=False, help="include game display name (default off = display name will be 0-length string)")
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args = parser.parse_args()
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records = [x.strip() for x in sys.stdin.readlines()]
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records = [x.partition('=') for x in records if x and x[0] not in ('#', '[')]
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for b in build(records, args):
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sys.stdout.buffer.write(b)
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