private HashSet <int> BigPercentageGenerateMethod(IUsedNumbersProvider usedNumbersProvider, int count)
{
var allNumbers = Enumerable.Range(From, (To - From) + 1);
var unusedNumbers = allNumbers.Except(usedNumbersProvider.GetUsedNumbers());
var returnedNumbers = unusedNumbers.ToList().TakeRandom(count);
usedNumbersProvider.SaveUsedNumbers(returnedNumbers);
return(new HashSet <int>(returnedNumbers));
}
private HashSet <int> SmallPercentageGenerateMethod(IUsedNumbersProvider usedNumbersProvider, int count)
{
HashSet <int> usedNumbers = usedNumbersProvider.GetUsedNumbers();
HashSet <int> returnedNumbers = new HashSet <int>();
Random rnd = new Random();
int added = 0;
int currCandidate = 0;
do
{
currCandidate = rnd.Next(From, To);
if (!usedNumbers.Contains(currCandidate))
{
returnedNumbers.Add(currCandidate);
usedNumbers.Add(currCandidate);
added++;
}
} while (added != count);
usedNumbersProvider.SaveUsedNumbers(returnedNumbers);
return(returnedNumbers);
}