private static int CalculateFrameScore(Frame frame, List<Frame> frames)
{
int frameScore = 0;
//frame 10 allows for a 3rd bonus ball
if (IsLastFrame(frame))
{
frameScore = CalculateLastFrame(frame);
}
else
{
//spare
if (IsSpare(frame))
{
frameScore = GameConfiguration.NUMBER_OF_PINS + getNextFrame(frame, frames).Ball_1.Result;
}
//strike
else if (IsStrike(frame))
{
//the max score for a single frame is 30 pins
frameScore = Math.Min(GameConfiguration.MAX_FRAME_SCORE, GameConfiguration.NUMBER_OF_PINS + CalculateFrameScore(getNextFrame(frame, frames), frames));
}
//not all pins knocked down
else
{
frameScore = frame.Ball_1.Result + frame.Ball_2.Result;
}
}
return frameScore;
}
private static Frame getNextFrame(Frame currentFrame, List<Frame> frames)
{
var nextFrames = from f in frames
where f.FrameNumber == currentFrame.FrameNumber + 1
select f;
return nextFrames.First();
}
private static bool IsStrike(Frame frame)
{
return frame.Ball_1.Result == GameConfiguration.NUMBER_OF_PINS;
}
private static bool IsSpare(Frame frame)
{
return frame.Ball_1.Result + frame.Ball_2.Result == GameConfiguration.NUMBER_OF_PINS && frame.Ball_1.Result != GameConfiguration.NUMBER_OF_PINS;
}
private static bool IsLastFrame(Frame frame)
{
return frame.FrameNumber == GameConfiguration.LAST_FRAME;
}
private static int CalculateLastFrame(Frame frame)
{
return frame.Ball_1.Result + frame.Ball_2.Result + frame.Ball_3.Result;
}
