public static Frame Append(Frame old, Roll roll)
{
List<Roll> tmp = new List<Roll>(old._rolls);
tmp.Add(roll);
return new Frame(old.GetFrameIndex(), tmp);
}
public static bool IsLastFrame(Frame f)
{
return f.GetFrameIndex() == GetCount() - 1;
}
private static bool IsLastFrame(Frame f)
{
return f.GetFrameIndex() == FrameCountRule.GetCount() - 1;
}