Created
September 21, 2016 14:56
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A simple script to generate seeds for The Binding of Isaac: Rebirth
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import random | |
__author__ = 'SolarPolarMan' | |
# https://twitter.com/solarpolarman | |
# https://www.youtube.com/solarpolarman | |
# https://steamcommunity.com/id/solarpolarman | |
# https://www.reddit.com/user/SolarPolarMan/ | |
def getchecksum(seed): | |
checksum = 0 | |
while True: | |
checksum = (checksum + (seed & 0xFF)) & 0xFF | |
checksum = (2 * checksum + (checksum >> 7)) & 0xFF | |
seed >>= 5 | |
if seed == 0: | |
break | |
return checksum | |
def makeseed(): | |
seed = random.randint(1, 4294967295) | |
checksum = getchecksum(seed) | |
abc = "ABCDEFGHJKLMNPQRSTWXYZ01234V6789" | |
seedsprev = ((seed ^ 0xFEF7FFD) << 8) | checksum | |
finalseed = "" | |
for loopindex in range(0, 8): | |
finalseed = abc[seedsprev & 0x1F] + finalseed | |
seedsprev >>= 5 | |
return finalseed | |
print(makeseed()) |
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