public int InsertTwoOrFour(List <EmptyCells> emptyCells)
{
Random rng = new Random();
int index = rng.Next(0, emptyCells.Count - 1);
EmptyCells SelectedCell = emptyCells[index];
int SelectIntToInsert = rng.Next(1, 10);
if (SelectIntToInsert == 9)
{
SelectIntToInsert = 4;
}
else
{
SelectIntToInsert = 2;
}
BoardTiles[SelectedCell.XIndex, SelectedCell.YIndex] = SelectIntToInsert;
return(SelectIntToInsert);
}
public static List <EmptyCells> GetEmpty(this int[,] arr)
{
List <EmptyCells> EmptyCells = new List <EmptyCells>();
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (arr[i, j] == 0)
{
EmptyCells emptyCell = new EmptyCells()
{
XIndex = i,
YIndex = j
};
EmptyCells.Add(emptyCell);
}
}
}
return(EmptyCells);
}