public static FieldPosition GetRandomEmptyFieldPosition()
{
EmptyFieldsPosition freeFields = EmptyFieldsPosition.Instance;
int position = generator.Next(freeFields.NumberOfEmptyFields());
FieldPosition pos;
try
{
pos = freeFields.GetEmptyFieldFromListAt(position);
}
catch (NoFreeFieldException e)
{
throw e;
}
freeFields.RemoveEmptyFieldFromList(pos.z, pos.x, pos.y);
return(pos);
}
/// <summary>
/// Method removes specified field from list of empty fields
/// </summary>
/// <param name="z"></param>
/// <param name="x"></param>
/// <param name="y"></param>
private void RemoveFieldPositionFromListOfEmptyFields(int z, int x, int y)
{
EmptyFieldsPosition freeFields = EmptyFieldsPosition.Instance;
freeFields.RemoveEmptyFieldFromList(z, x, y);
}