Custom RNG

rand.py

'''
Might want to port this to C/C++ for a microcontroller in the future
I'm sure the arduino IDE has a `rand()` package for a better, more optimized version though, but was still fun
'''

# Custom random number generator parameters
custom_seed = 123456789  # The seed value
custom_a = 1664525  # Multiplier
custom_c = 1013904223  # Increment
custom_m = 4294967296  # Modulus, 2^32

import time


# Custom random number generator function
def rand():
    epoc_time = time.time()
    global custom_seed
    custom_seed += int(epoc_time * 1000)
    custom_seed = (custom_a * custom_seed + custom_c) % custom_m
    return custom_seed


def rand_range(start: int, end: int):
    return start + rand() % (end - start)


if __name__ == "__main__":
    results = []
    for i in range(100):
        res = rand_range(1, 1000)
        results.append(res)
    results.sort()

    from pprint import pprint
    pprint(results)