private static void AddSpare()
{
var secondRoll = SecondRoll();
secondRoll.NextRoll = BuildRoll.From(RawLine[Index + 2]);
secondRoll.KnockedPins -= FirstRoll().KnockedPins;
Line.AddFrame(new SpareFrame(FirstRoll(), secondRoll));
}
private static void AddStrike()
{
var firstRoll = FirstRoll();
firstRoll.NextRoll = BuildRoll.From(RawLine[Index + 1]);
firstRoll.NextRoll.NextRoll = BuildRoll.From(RawLine[Index + 2]);
Line.AddFrame(new StrikeFrame(firstRoll));
Index -= 1;
}
private static bool ThereIsAStrikeInTheLastFrame()
{
return(BuildRoll.From(RawLine[Index + 1]).KnockedPins == 10 && Index + 4 == RawLine.Length);
}
private static Roll SecondRoll() => BuildRoll.From(RawLine[Index + 1]);
private static Roll FirstRoll() => BuildRoll.From(RawLine[Index]);
