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- """Check the scene wire layout and authored event keys against extracted game data.
- Usage: python3 tests/verify_ember_explosion_content.py activity_sdk.pack 80BEB1CC.bin
- """
- import mmap
- from pathlib import Path
- import struct
- import sys
- with Path(sys.argv[1]).open('rb') as stream, mmap.mmap(stream.fileno(), 0, access=mmap.ACCESS_READ) as data:
- start, count, stride = struct.unpack_from('<QII', data, 160 + 35 * 16)
- fields, _, field_stride = struct.unpack_from('<QII', data, 160 + 36 * 16)
- schemas = {}
- for index in range(count):
- row = struct.unpack_from('<8IQII', data, start + index * stride)
- if row[0] in (0x8080626B, 0x80807ED9, 0x808094F3, 0x808094E1, 0x808094DF):
- schemas[row[0]] = [struct.unpack_from('<6Iq6I', data, fields + i * field_stride)
- for i in range(row[6], row[6] + row[7])]
- def layout(schema):
- return [(f[2], f[4], f[5], f[7]) for f in schemas[schema]]
- assert layout(0x8080626B) == [(0, 5, 0xFFFFFFFF, 32), (4, 2, 0xFFFFFFFF, 1),
- (8, 1, 0x80807ED9, 0xFFFFFFFF), (80, 1, 0x808094E1, 0xFFFFFFFF)]
- assert schemas[0x8080626B][0][6] == -2147483648
- assert layout(0x80807ED9) == [(0, 1, 0x808094F3, 0xFFFFFFFF), (68, 5, 0xFFFFFFFF, 31)]
- assert schemas[0x808094F3][0][7] == 4
- assert layout(0x808094E1) == [(0, 5, 0xFFFFFFFF, 6), (4, 1, 0x808094DF, 0)]
- assert layout(0x808094DF) == [(4, 9, 0xFFFFFFFF, 32)]
- scene = Path(sys.argv[2]).read_bytes()
- for suffix, offset, key in [('a', 0x5BC0, 0x329EB106), ('b', 0x5C20, 0x633B82E9),
- ('c', 0x5C80, 0x15A78938), ('d', 0x5CE0, 0xF9D55A83)]:
- value = 0x811C9DC5
- for byte in f'explosion_set_{suffix}_trigger'.encode():
- value = ((value * 0x01000193) & 0xFFFFFFFF) ^ byte
- assert value == key
- assert struct.unpack_from('<I', scene, offset - 12)[0] == 0x8080637D
- assert struct.unpack_from('<I', scene, offset)[0] == key
- print('Type-43 scene schema (74 + 32*n bits) and all four authored explosion event keys verified.')
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