:sig
f64 gen_noise01(u64 index, u64 seed = 0)

:params
index : index position
seed : seed set (defaults to 0)
return value : a noise value from 0 to 1

:see
>noise

:content
Generates a deterministic noise value in the range from `0` to `1` for the given `index` and `seed`.


:example
print(gen_noise01(1, 2) >= 0 ? "noise\n" : "bad\n");
