public SlotMachineSpinResultDto Spin(decimal stakeAmount)
{
var rowsOfSymbols = new List <List <Symbol> >();
double coefficient = 0;
ISymbolCoefficientProvider symbolCoefficientProvider = _symbolCoefficientProviderFactory.Create();
for (int i = 0; i < Rows; i++)
{
List <Symbol> symbols = _randomSymbolGenerator.Generate(NumberOfSymbolsOnARow);
rowsOfSymbols.Add(symbols);
coefficient += symbolCoefficientProvider.GetCoefficient(symbols);
}
decimal winAmount = (decimal)coefficient * stakeAmount;
_player.Balance += winAmount;
return(new SlotMachineSpinResultDto
{
PlayerBalance = _player.Balance,
Symbols = rowsOfSymbols,
WinAmount = winAmount,
IsSuccess = true
});
}
private Symbol[,] GenerateReels()
{
var machine = new Symbol[_reelSymbolsCount, _reelsCount];
for (int symbolIndex = 0; symbolIndex < _reelSymbolsCount; symbolIndex++)
{
for (int reelIndex = 0; reelIndex < _reelsCount; reelIndex++)
{
var symbol = _randomSymbolGenerator.Generate(_symbolsProvider.GetSymbols());
machine[symbolIndex, reelIndex] = symbol;
}
}
return(machine);
}
public void WhenNonWinningCombinationIsGeneratedAndSteakIsEqualToBalanceThenBalanceShouldBe0()
{
const decimal depositAmount = 100;
var nonWiningCombination = new Queue <Symbol>
(
new Symbol[]
{
_apple, _banana, _pineapple,
_apple, _banana, _pineapple,
_apple, _banana, _pineapple,
_apple, _banana, _pineapple
}
);
_randomSymbolGenerator.Generate(Arg.Any <IReadOnlyCollection <Symbol> >())
.Returns(_ => nonWiningCombination.Dequeue());
_slotMachine.Deposit(depositAmount);
var spinResult = _slotMachine.Spin(depositAmount);
Assert.That(_slotMachine.Balance, Is.EqualTo(0));
Assert.That(spinResult.AmountWon, Is.Zero);
}