generates all sister seeds of an inputted seed and stores them in "<seed>_sisters.txt"

sisterseeds.py

# Copyright (c) 2023 tildejustin

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# "imagine using a signed long, couldn't be me"

structure_seed_len = 48
top_seed_len = 16
seed_len = 64


def main() -> None:
    seed = int(input("Input a seed: "))
    structure_seed = seed & 2**structure_seed_len - 1
    print("structure seed: " + "0" * 15 + bin(structure_seed)[2:])
    # correct in binary, but python doesn't recognize two's complement notation
    # and just thinks they're all positive numbers :P
    sister_seeds_temp = [
        (num << structure_seed_len) + structure_seed for num in range(2**16)
    ]
    sister_seeds = map(str, map(twos_complement, sister_seeds_temp))
    with open(f"{seed}_sisters.txt", "w") as file:
        file.write("\n".join(sister_seeds))


def twos_complement(bin_num: int) -> int:
    if bin_num >> seed_len - 1 == 0:
        return bin_num
    return bin_num - 2**seed_len


if __name__ == "__main__":
    main()