Function Pseudo Random Generator

Function to return a pseudo random number.
you can constrict it to a range and provide a seed to step through on the same bar.

thanks to Duyck, for the link.

เอกสารเผยแพร่:

Update for V4, the function now can return a prng value every time its called.
it uses a external global variable to parse the seed in and out via parameters and output.