public IEnumerable<Frame> Frame_rolls(IEnumerable<int> rolls)
{
var frames = new List<Frame>();
var frame = new Frame();
foreach (var roll in rolls)
{
if (frame.Roll1.HasValue)
{
frame.Roll2 = roll;
frames.Add(frame);
frame = new Frame();
}
else
{
frame.Roll1 = roll;
if (roll == 10 && frames.Count < 10)
{
frames.Add(frame);
frame = new Frame();
}
}
}
if (frame.Roll1.HasValue) frames.Add(frame);
return frames;
}
private static bool Check_for_single_roll_after_spare_in_10th_frame(Frame[] frames)
{
return frames.Count() == 11 &&
frames[9].Roll1 != 10 &&
frames[10].Roll1.HasValue;
}
private static bool Check_for_pair_in_10th_frame(Frame[] frames)
{
return frames.Count() == 10 &&
frames[9].Roll2.HasValue &&
frames[9].Score < 10;
}
private static bool Check_for_2_more_rolls_after_strike_in_10th_frame(Frame[] frames)
{
return frames.Count() == 11 &&
frames[9].Roll1 == 10 &&
frames[10].Roll1.HasValue && frames[10].Roll2.HasValue;
}
