/// <summary>
/// Fisher–Yates shuffle
/// https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle
/// </summary>
private void ShufflePool()
{
FileLogger.Singleton.Debug("PoolBeforeShuffle: {pool}", _pool);
int n = _pool.Count;
while (n > 1)
{
--n;
int k = _rng.GetOneNumber(0, n + 1);
var value = _pool[k];
_pool[k] = _pool[n];
_pool[n] = value;
}
FileLogger.Singleton.Debug("PoolAfterShuffle: {pool}", _pool);
}