45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
import os
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from typing import Optional
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import Utils
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from worlds.Files import APDeltaPatch
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USHASH = '6e9c94511d04fac6e0a1e582c170be3a'
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class SoEDeltaPatch(APDeltaPatch):
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hash = USHASH
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game = "Secret of Evermore"
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patch_file_ending = ".apsoe"
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@classmethod
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def get_source_data(cls) -> bytes:
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with open(get_base_rom_path(), "rb") as stream:
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return read_rom(stream)
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def get_base_rom_path(file_name: Optional[str] = None) -> str:
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options = Utils.get_options()
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if not file_name:
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file_name = options["soe_options"]["rom_file"]
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if not file_name:
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raise ValueError("Missing soe_options -> rom_file from host.yaml")
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if not os.path.exists(file_name):
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file_name = Utils.user_path(file_name)
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return file_name
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def read_rom(stream, strip_header=True) -> bytes:
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"""Reads rom into bytearray and optionally strips off any smc header"""
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data = stream.read()
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if strip_header and len(data) % 0x400 == 0x200:
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return data[0x200:]
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return data
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if __name__ == '__main__':
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import sys
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print('Please use ../../Patch.py', file=sys.stderr)
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sys.exit(1)
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