How to save the state of a Random generator in C#?

Question

For testing purposes I\'m creating random numbers with a given seed (i.e. not based on the current time).

Thus the whole program is deterministic.

If someth

Answer 1

Store the amount of times the random number generator ran like Xi Huan wrote.

Then simply loop to restore the old state.

Random rand= new Random();
int oldRNGState = 439394;

for(int i = 1; i < oldRNGState-1; i++) {
    rand.Next(1)
}

Now just do

int lastOldRNGValue = rand.Next(whateverValue);

There is no way around this you have to loop to get back to where you left off.