private Int32 FindMoveScore(IGameState gameState, GamePlayer currentPlayer, Int32 depth)
{
if (depth <= 0 || _gameLogic.IsFinished(gameState))
{
return(_stateEvaluator.Evaluate(gameState, currentPlayer));
}
IGameMove[] moves = _gameLogic.GetPossibleMoves(gameState, currentPlayer);
if (moves.Length <= 0)
{
//// there are no more possible moves to analyse, so return current state evaluation
return(_stateEvaluator.Evaluate(gameState, currentPlayer));
}
Int32[] rates = new Int32[moves.Length];
Action <Int32> checkSingleMove = moveIndex =>
{
IGameMove nextMove = moves[moveIndex];
IGameState newState = _gameLogic.MakeMove(nextMove, gameState);
rates[moveIndex] = (Int32)(FindMoveScore(newState, OtherPlayer(currentPlayer), depth - 1) * FutureDiscount);
};
if (_useParallel)
{
Parallel.For(0, moves.Length, checkSingleMove);
}
else
{
for (Int32 q = 0; q < moves.Length; q++)
{
checkSingleMove(q);
}
}
if (currentPlayer == GamePlayer.PlayerMax)
{
return(rates.FindFirstMax().Item2);
}
else if (currentPlayer == GamePlayer.PlayerMin)
{
return(rates.FindFirstMin().Item2);
}
else
{
throw new NotSupportedException(currentPlayer.ToString());
}
}
