/// <summary>
/// Print a single frame
/// </summary>
public static string PrintFrame(this BowlingFrame frame)
{
if (frame.FrameType == FrameTypeEnum.Strike)
{
return("(X)");
}
if (frame.FrameType == FrameTypeEnum.Spare)
{
return($"({frame.Try1}, /)");
}
return($"({frame.Try1} , {frame.Try2})");
}
/// <summary>
/// Rolls a new frame and returns a new instance of the scorecard
/// </summary>
public static ScoreCard RollNewFrame(ScoreCard scoreCard, int tryNo1, int tryNo2)
{
// creates a new frame (calculate its type based on the tries and the number of rounds (scorecard's length).
BowlingFrame newFrame = new BowlingFrame(tryNo1, tryNo2,
GetFrameType(tryNo1, tryNo2, scoreCard.Length));
// Check the validity of the new frame
if (!newFrame.IsValid())
{
throw new IllegalBowlingActionException("Invalid frame");
}
// Ensure the scorecard is eligible or another frame, otherwise, an error is thrown
if (IsEligibleForAnotherTry(scoreCard) == false)
{
throw new IllegalBowlingActionException("The game has reach to its maximum rounds");
}
// Add the new frame to the scorecard and returns a new instance of a scorecard.
// The goal is to keep the instances immutable.
ScoreCard newScoreCard = scoreCard.Add(newFrame);
// Validate the new set of frames
if (Game.IsValid(newScoreCard) == false)
{
throw new IllegalBowlingActionException("An invalid frame was added");
}
return(newScoreCard);
// Inner functions that returns the frame's type based on the number of round or the dropped pins.
FrameTypeEnum GetFrameType(int item1, int item2, int count)
{
if (count == BowlingGameExtenstions.NUM_OF_REGULAR_ROUNDS)
{
return(FrameTypeEnum.BonusFrame);
}
if ((item1) == BowlingGameExtenstions.NUM_OF_PINS)
{
return(FrameTypeEnum.Strike);
}
if ((item1 + item2) == BowlingGameExtenstions.NUM_OF_PINS)
{
return(FrameTypeEnum.Spare);
}
return(FrameTypeEnum.Normal);
}
}
public BowlingFrame(BowlingFrame frame)
{
Try1 = frame.Try1;
Try2 = frame.Try2;
FrameType = frame.FrameType;
}
/// <summary>
/// Create a new scorecard with the additional new frame.
/// Copy the existing frames and adds the new ones.
/// </summary>
public ScoreCard Add(BowlingFrame frame)
{
return(new ScoreCard(ImmutableArray.Create <BowlingFrame>().
AddRange(Frames).
Add(frame)));
}
