/// <summary>
/// Uses an enumerable list of frame data to create a list of FrameViewModels
/// </summary>
/// <param name="framesData"></param>
/// <returns></returns>
public static IEnumerable <FrameViewModel> CreateFrameViewModels(IEnumerable <FrameDataModel> framesData)
{
// Prevent duplicate enumeration.
List <FrameDataModel> frameDataModels = framesData.ToList();
List <FrameViewModel> output = new List <FrameViewModel>();
for (Int32 i = 0; i < frameDataModels.Count; i++)
{
FrameDataModel thisFrame = frameDataModels.ElementAt(i);
FrameDataModel nextFrame = frameDataModels.ElementAtOrDefault(i + 1);
FrameDataModel nextNextFrame = frameDataModels.ElementAtOrDefault(i + 2);
FrameViewModel newView = new FrameViewModel
{
Throws = GetThrowCharacters(thisFrame),
FrameNumber = frameDataModels.IndexOf(thisFrame) + 1
};
if (CanScore(thisFrame, nextFrame, nextNextFrame))
{
Int32 score = (thisFrame.FirstThrow ?? 0) + (thisFrame.SecondThrow ?? 0) +
(thisFrame.ThirdThrow ?? 0);
// If this is a spare, add the first throw of next frame.
// Bonus points only count for non-final frames.
if (thisFrame.FrameNumber < 10 && thisFrame.IsSpare)
{
score += nextFrame?.FirstThrow ?? 0;
}
// If this is a strike...
if (thisFrame.FrameNumber < 10 && thisFrame.IsStrike)
{
// For frame 1-8, next frame being strikes means add 10 to next-next's first throw.
if (thisFrame.FrameNumber < 9 && nextFrame != null && nextFrame.IsStrike)
{
score += 10 + (nextNextFrame?.FirstThrow ?? 0);
}
// Otherwise, use next's first and second throw.
else
{
score += (nextFrame?.FirstThrow ?? 0) + (nextFrame?.SecondThrow ?? 0);
}
}
newView.Score = score;
}
output.Add(newView);
}
return(output);
}
/// <summary>
/// Creates Frame Data List from FrameDataModel class.
/// </summary>
/// <returns>String list of Frame data model constants</returns>
public List <string> FrameDataList()
{
FrameDataModel fdm = new FrameDataModel();
List <string> fdmList = new List <string>
{
fdm.LargeAdvantageConst,
fdm.SlightAdvantageConst,
fdm.NeutralEvenConst,
fdm.SlightDisadvantageConst,
fdm.LargeDisadvantageConst
};
return(fdmList);
}
/// <summary>
/// Gets the list of throw characters for this specific Frame.
/// </summary>
/// <param name="f">The frame to generate characters for.</param>
/// <returns></returns>
private static List <Char> GetThrowCharacters(FrameDataModel f)
{
List <char> throwCharacters = new List <Char>();
if (f.FirstThrow.HasValue)
{
throwCharacters.Add(f.FirstThrow == 10 ? 'X' : f.FirstThrow.ToString()[0]);
}
if (f.SecondThrow.HasValue)
{
if (f.SecondThrow == 10)
{
throwCharacters.Add('X');
}
else if (f.FirstThrow + f.SecondThrow == 10)
{
throwCharacters.Add('/');
}
else
{
throwCharacters.Add(f.SecondThrow.ToString()[0]);
}
;
}
if (f.ThirdThrow.HasValue)
{
if (f.ThirdThrow == 10)
{
throwCharacters.Add('X');
}
// If we weren't already a Spare, then mark Spare.
else if (f.FirstThrow + f.SecondThrow != 10 && f.ThirdThrow + f.SecondThrow == 10)
{
throwCharacters.Add('/');
}
else
{
throwCharacters.Add(f.SecondThrow.ToString()[0]);
}
;
}
return(throwCharacters);
}
public async Task <IActionResult> CreateGame([FromBody] CreateGameRequest request)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
PlayerDataModel player = await _context.Players.FindAsync(request.PlayerId);
if (player == null)
{
return(BadRequest($"No player with Id {request.PlayerId} exists."));
}
// Create new Game entry in DB.
GameDataModel gameDataModel = new GameDataModel
{
Player = player, CreationDate = DateTime.Now, Frames = new List <FrameDataModel>()
};
_context.Games.Add(gameDataModel);
await _context.SaveChangesAsync();
// Create first Frame entry for the new Game.
FrameDataModel firstFrameDataModel = new FrameDataModel
{
CreationDate = DateTime.Now,
GameId = gameDataModel.Id,
FrameNumber = 1
};
_context.Frames.Add(firstFrameDataModel);
await _context.SaveChangesAsync();
// Update new Game entry with the new Frame and throw.
gameDataModel.Frames.Add(firstFrameDataModel);
gameDataModel.CurrentFrameId = gameDataModel.Frames.First().Id;
gameDataModel.CurrentThrow = 1;
await _context.SaveChangesAsync();
return(CreatedAtAction("GetGame", new { gameId = gameDataModel.Id },
ViewModelFactory.CreateGameViewModel(gameDataModel)));
}
/// <summary>
/// Determine whether or not this Frame (based on the next two frames) can be scored.
/// </summary>
/// <param name="thisFrame"></param>
/// <param name="nextFrame"></param>
/// <param name="nextNextFrame"></param>
/// <returns></returns>
private static bool CanScore(FrameDataModel thisFrame, FrameDataModel nextFrame, FrameDataModel nextNextFrame)
{
// If we are looking at a spare, we need the next Frame to have a value in order to score.
if (thisFrame.IsSpare)
{
// Frame 10 will only depend on this frame's third throw.
if (thisFrame.FrameNumber == 10)
{
return(thisFrame?.ThirdThrow != null);
}
// Otherwise, we check for next frame's first throw.
return(nextFrame?.FirstThrow != null);
}
// If we are looking at a strike...
if (thisFrame.IsStrike)
{
// Frame 10 will only ever be dependent on this frame.
if (thisFrame.FrameNumber == 10)
{
return(thisFrame?.SecondThrow != null && thisFrame?.ThirdThrow != null);
}
// Frame 9 will only ever be dependent on next frame.
if (thisFrame.FrameNumber == 9)
{
return(nextFrame?.FirstThrow != null && nextFrame.SecondThrow != null);
}
// If next frame is a strike, check if next-next has a value.
if (nextFrame != null && nextFrame.IsStrike)
{
return(nextNextFrame?.FirstThrow != null);
}
// Otherwise check that nextFrame has a Second Throw.
return(nextFrame?.SecondThrow != null);
}
// Otherwise, we can score when the frame is finished.
return(thisFrame.IsFinished);
}
public async Task <IActionResult> AddThrow([FromRoute] Guid gameId, [FromBody] CreateThrowRequest request)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (request.PinsDropped > 10)
{
return(BadRequest("A maximum of 10 pins may be dropped."));
}
GameDataModel thisGame = await _context.Games
.Include(g => g.Player)
.Include(g => g.Frames)
.SingleOrDefaultAsync(g => g.Id == gameId);
if (thisGame == null)
{
return(BadRequest($"No game with Id {gameId} exists."));
}
if (thisGame.IsFinished)
{
return(BadRequest("This game is complete, no more throws allowed."));
}
// Set current throw to the value we just received.
FrameDataModel currentFrame = await _context.Frames.SingleAsync(f => f.Id == thisGame.CurrentFrameId);
// First Throw
if (thisGame.CurrentThrow == 1)
{
currentFrame.FirstThrow = request.PinsDropped;
if (request.PinsDropped == 10)
{
currentFrame.IsStrike = true;
currentFrame.IsFinished = true;
}
}
// Second Throw
else if (thisGame.CurrentThrow == 2)
{
currentFrame.SecondThrow = request.PinsDropped;
// Mark if Spare.
currentFrame.IsSpare = currentFrame.FirstThrow + request.PinsDropped == 10;
// Non-Final Frames are finished at this point, and can score if not a strike or spare.
if (currentFrame.FrameNumber < 10)
{
currentFrame.IsFinished = true;
}
// Final Frame.
else
{
currentFrame.IsFinished = !(currentFrame.IsStrike || currentFrame.IsSpare);
thisGame.IsFinished = !(currentFrame.IsStrike || currentFrame.IsSpare);
}
}
// Third Throw (Final Frame Only)
else if (thisGame.CurrentThrow == 3)
{
currentFrame.ThirdThrow = request.PinsDropped;
currentFrame.IsFinished = true;
thisGame.IsFinished = true;
}
// If we need a new frame, create one and set it to throw 1 of that new frame.
Boolean needsNewFrame = currentFrame.IsFinished && currentFrame.FrameNumber < 10;
if (needsNewFrame)
{
FrameDataModel newFrame = new FrameDataModel
{
CreationDate = DateTime.Now,
GameId = thisGame.Id,
FrameNumber = currentFrame.FrameNumber + 1
};
_context.Frames.Add(newFrame);
await _context.SaveChangesAsync();
thisGame.Frames.Add(newFrame);
thisGame.CurrentFrameId = newFrame.Id;
thisGame.CurrentThrow = 1;
}
else if (!thisGame.IsFinished)
{
thisGame.CurrentThrow++;
}
await _context.SaveChangesAsync();
return(Ok(ViewModelFactory.CreateGameViewModel(thisGame)));
}
/// <summary>
/// Generates in-memory mock data for FrameDataModels.
/// </summary>
/// <returns></returns>
private List <FrameDataModel> MockFrameData(Guid gameId)
{
FrameDataModel Frame1 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch,
GameId = gameId,
FrameNumber = 1,
FirstThrow = 5,
SecondThrow = 5,
IsSpare = true,
IsFinished = true
};
FrameDataModel Frame2 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch.AddMinutes(1),
GameId = gameId,
FrameNumber = 2,
FirstThrow = 10,
IsStrike = true,
IsFinished = true
};
FrameDataModel Frame3 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch.AddMinutes(2),
GameId = gameId,
FrameNumber = 3,
FirstThrow = 1,
SecondThrow = 8,
IsFinished = true
};
FrameDataModel Frame4 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch.AddMinutes(1),
GameId = gameId,
FrameNumber = 4,
FirstThrow = 10,
IsStrike = true,
IsFinished = true
};
FrameDataModel Frame5 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch.AddMinutes(1),
GameId = gameId,
FrameNumber = 5,
FirstThrow = 10,
IsStrike = true,
IsFinished = true
};
FrameDataModel Frame6 = new FrameDataModel
{
Id = Guid.NewGuid(),
CreationDate = DateTime.UnixEpoch.AddMinutes(2),
GameId = gameId,
FrameNumber = 6,
FirstThrow = 6
};
return(new List <FrameDataModel> {
Frame1, Frame2, Frame3, Frame4, Frame5, Frame6
});
}