public bool Play(CardRowConfiguration startConfig, bool isPlayerTurn)
{
var config = startConfig;
DisplayConfig(config, isPlayerTurn);
while (config.GetState() != CardGameState.Win && config.GetState() != CardGameState.Lose)
{
var move =
isPlayerTurn ?
GetUserMove(config) :
_solver.GetBestMove(config);
config = config.Move(move);
isPlayerTurn = !isPlayerTurn;
DisplayConfig(config, isPlayerTurn);
}
var state = config.GetState();
switch (state)
{
case CardGameState.Win:
return(isPlayerTurn);
case CardGameState.Lose:
return(!isPlayerTurn);
}
throw new Exception("Invalid game state.");
}
public void DisplayConfig(CardRowConfiguration config, bool isPlayerTurn)
{
Console.Clear();
config.Draw();
if (!isPlayerTurn)
{
Thread.Sleep(TimeSpan.FromSeconds(2));
}
}
public int GetNodeScore(CardRowConfiguration config, int depth = 1)
{
var isPlayerTurn = depth % 2 != 0;
var state = config.GetState();
if (isPlayerTurn)
{
switch (state)
{
case CardGameState.PredictLose:
return(-depth);
case CardGameState.PredictWin:
return(100 - depth);
case CardGameState.Lose:
return(-100);
case CardGameState.Win:
return(100);
}
}
else
{
switch (state)
{
case CardGameState.PredictLose:
return(100 - depth);
case CardGameState.PredictWin:
return(-depth);
case CardGameState.Lose:
return(100);
case CardGameState.Win:
return(-100);
}
}
var children = config.GetChildConfigurations();
return(children.Select(c => GetNodeScore(c, depth + 1))
.OrderBy(x => x < 0)
.ThenByDescending(x => x)
.First());
}
public Move GetUserMove(CardRowConfiguration configuration)
{
int row = -1;
int maxRowValue = 0;
int value = 0;
var rowKey = new ConsoleKeyInfo();
while (maxRowValue == 0)
{
Console.Write("Enter row [0 - 2] -- must have more than 0 items: ");
rowKey = Console.ReadKey();
Console.WriteLine();
if (char.IsDigit(rowKey.KeyChar))
{
row = int.Parse(rowKey.KeyChar.ToString());
if (row >= 0 && row <= 2)
{
maxRowValue = configuration.GetMaxRowValue(row);
}
}
}
var valueKey = new ConsoleKeyInfo();
while (!char.IsDigit(valueKey.KeyChar) ||
value < 1 || value > maxRowValue)
{
Console.Write($"How much to take? [1 - {maxRowValue}]: ");
valueKey = Console.ReadKey();
Console.WriteLine();
if (char.IsDigit(valueKey.KeyChar))
{
value = int.Parse(valueKey.KeyChar.ToString());
}
}
var move = new Move(3)
{
RowSubtracts = { [row] = value }
};
return(move);
}
// Get next best move
public Move GetBestMove(CardRowConfiguration config)
{
return(config.GetPossibleMoves()
.MinBy(move => GetNodeScore(config.Move(move)))
.First());
}
public CardRowConfiguration(CardRowConfiguration other)
{
Row1 = other.Row1;
Row2 = other.Row2;
Row3 = other.Row3;
}
