i'm trying to make a seeded random number generator. all i want as a function to take in a seed, increment and max value and then return a result. i'm not too worried about things being uniform, but the more uniform the better. the purpose for this is to generate a random sequence of notes for music.
so far from searching, it seems everyone includes some sort of library, which i don't have the luxury of. I am using REAPER's JSFX language which is based off cockos EEL2 which is based off c. there is a rand() function but there is no way to seed it. i've tried creating my own methods such as (seed * increment) % maxvalue however if the max value is at 10, the order of random numbers is always ascending.
i've also tried searching online, even resorting to chatgpt. but everything i've seen doesn't make sense.