public GameSpinDto Spin(int gameId, int bet, int numberOfScratchCards)
{
GameSpinDto result = new GameSpinDto();
GameConfigurationDto gameConfiguration = this.GetGameConfiguration(gameId);
if (gameConfiguration.MaxNumberOfScratchCards < numberOfScratchCards)
{
throw new ArgumentException("Max number of scratch cards exceeded.");
}
if (gameConfiguration == null)
{
throw new ArgumentException("Game not found.");
}
this.SelectWheelSigns(ref result, gameConfiguration);
this.SelectScratchCardsSigns(ref result, gameConfiguration, numberOfScratchCards);
foreach (ScratchCardDto scratchCard in result.ScratchCards)
{
scratchCard.Factor = this.CalculatePrizeFactor(bet, result.WheelSignIds, scratchCard.SignIds, gameConfiguration);
scratchCard.Prize = scratchCard.Factor * bet;
}
result.Prize = result.ScratchCards.Sum(sc => sc.Prize);
return(result);
}
private void SelectScratchCardsSigns(ref GameSpinDto gameSpin, GameConfigurationDto gameConfiguration, int numberOfScratchCards)
{
Random randomizer = new Random();
gameSpin.ScratchCards = new ScratchCardDto[numberOfScratchCards];
for (int i = 0; i < numberOfScratchCards; i++)
{
List <SignDto> signs = gameConfiguration.Signs.ToList();
ScratchCardDto scratchCard = new ScratchCardDto
{
SignIds = new int[gameConfiguration.SignsNumberOnScratchCard]
};
for (int j = 0; j < gameConfiguration.SignsNumberOnScratchCard; j++)
{
int randomIndex = randomizer.Next(0, signs.Count);
scratchCard.SignIds[j] = signs[randomIndex].Id;
if (!gameConfiguration.ScratchCardSignsCanRepeat)
{
signs.RemoveAt(randomIndex);
}
}
gameSpin.ScratchCards[i] = scratchCard;
}
}
public IActionResult Spin(int gameId, [FromForm] GameSpinRequest request)
{
if (request == null)
{
return(this.BadRequest("Request data should be provided."));
}
IActionResult result = null;
try
{
GameSpinDto res = this.gameManager.Spin(gameId, request.Bet, request.NumberOfScratchCards);
GameSpinResponse response = new GameSpinResponse
{
Prize = res.Prize,
WheelSignIds = res.WheelSignIds,
ScratchCards = res.ScratchCards.Select(sc => new GameSpinResponse.ScratchCard
{
Prize = sc.Prize,
SignIds = sc.SignIds,
Factor = sc.Factor
}).ToArray()
};
result = this.Ok(response);
}
catch (ArgumentException ex)
{
result = this.BadRequest(ex.Message);
}
return(result);
}
private void SelectWheelSigns(ref GameSpinDto gameSpin, GameConfigurationDto gameConfiguration)
{
Random randomizer = new Random();
gameSpin.WheelSignIds = new int[gameConfiguration.SignsNumberOnWheel];
List <SignDto> signs = gameConfiguration.Signs.Where(s => !s.Special).ToList();
for (int i = 0; i < gameConfiguration.SignsNumberOnWheel; i++)
{
int randomIndex = randomizer.Next(0, signs.Count);
gameSpin.WheelSignIds[i] = signs[randomIndex].Id;
signs.RemoveAt(randomIndex);
}
}