How to change seed for random coordinate generation in the API?

Hi Shyam

Please check the following link to get a better understanding of the srand function: https://cplusplus.com/reference/cstdlib/srand/

Thanks,
Jerrin Job

Yes i wrote those lines which are commented out in green based on this (https://cplusplus.com/reference/cstdlib/srand/)

I am not trying to say i get same x y coordinates for that if i include srand in between ThisRandNuX and thisRandNuY i will get different random number.

What i am trying to ask is

Say i want to generate 10 particles, if i run the lines which are commented out (ones in green)

i will get same random number for 1st particle.. 2nd particle..3rd particle etc.

Why do i not get a different random number? Thats is what i am trying to ask.

When a new particle is about to be generated 

srand(::time(NULL)) line will re-run and i expected to see a different random number for particle 2 and 3 etc..

Hi Shyam,

Here's a detailed solution to your problem regarding random numbers generation and why you should avoid the rand function : https://stackoverflow.com/questions/288739/generate-random-numbers-uniformly-over-an-entire-range

Regards,
Renan

I tried the one you suggested from stack overflow everytime it gives the same pattern 

positioning i will fix it but it gives the same pattern every time i want the pattern to change when i run the simulation next time

never mind please ignore it. that code works i fixed the positions..i have to give it a minute for the pattern to change