Приложение для обработки кредитных карт Angular7 Net2.2

Вы можете проверить использование оператора switch.

switch (ScreenIndex)
{
    case 0:
        Debug.Log ("X (should be 0) = " + ScreenIndex);
        //If the user is at screen index 0, then a loop should be querying position 0 only here. If the user is at position 1 then a loop should be 
        //querying position 4 - this is because position 1,2,3 will be queried in 'OnEraseProgressScratch2', 'OnEraseProgressScratch3' and 'OnEraseProgressScratch4'.
        if (UIHandler.GetDynamicCorrectAnswerArray () [ScreenIndex].ToString ().Contains ("Correct"))
        {
            Debug.Log ("Answer 1 is correct");
        }
    break;
    case 1:
        ScreenIndex += 3;

        Debug.Log ("X (should be 4) = " + ScreenIndex);

        if (UIHandler.GetDynamicCorrectAnswerArray () [ScreenIndex].ToString ().Contains ("Correct"))
        {
            Debug.Log ("Answer 1 is correct");
        }
    break; //... and so on

или ... Вы можете просто сделать другой метод.

public void Method (int screenIndex, int AddToIndex)
{
    Debug.LogFormat ("X (should be {0}) = {1}", ScreenIndex, ScreenIndex + AddToIndex);
    ScreenIndex += AddToIndex

    if (UIHandler.GetDynamicCorrectAnswerArray () [ScreenIndex].ToString ().Contains ("Correct"))
    {
        Debug.Log ("Answer 1 is correct");
    }
}

и просто составить формулу для вашего метода что-то вроде

int toAdd = ScreenIndex * 3;