// -------------------------------------------------------------------------------------
// Public Funtion
public override IObservable <Position> MakeDicision(GameStage _stage, GameTime _gameTime)
{
return(Observable.Create <Position>
(
_observer =>
{
var gameTime = Observable
.Timer(TimeSpan.FromSeconds((int)_gameTime))
.Subscribe(_ =>
{
_observer.OnNext(_stage.RandomPosition());
_observer.OnCompleted();
});
var dicision = _UIBoard
.OnClickBoardAsObservable()
.Where(_pos => _stage.CheckPosibleDecision(_pos))
.Subscribe(_position =>
{
_observer.OnNext(_position);
_observer.OnCompleted();
});
return Disposable.Create(() =>
{
gameTime?.Dispose();
dicision?.Dispose();
});
}
));
}
// -------------------------------------------------------------------------------------
// Private Funtion
private Position FindBestSolution(GameStage _stage)
{
var isMinimax = _stage.Players[0] != _stage.CurrentTurn;
var bestList = new List <Position>();
bestList.Add(_stage.RandomPosition());
var bestValue = isMinimax ? MAX_VALUE : MIN_VALUE;
var bestPos = _stage.RandomPosition();
for (int i = 0; i < _stage.PosiblePosition.Count; i++)
{
var nextStage = _stage.Clone();
nextStage.SelectPosition(_stage.PosiblePosition[i]);
nextStage.SetNextPlayer();
var value = Minimax(3, 0, false, nextStage, MIN_VALUE, MAX_VALUE, _stage.CurrentTurn);
if (isMinimax)
{
if (bestValue > value)
{
bestList = new List <Position>();
bestValue = value;
bestPos = _stage.PosiblePosition[i];
bestList.Add(_stage.PosiblePosition[i]);
}
else if (bestValue == value)
{
bestList.Add(_stage.PosiblePosition[i]);
}
}
else
{
if (bestValue < value)
{
bestList = new List <Position>();
bestValue = value;
bestPos = _stage.PosiblePosition[i];
bestList.Add(_stage.PosiblePosition[i]);
}
else if (bestValue == value)
{
bestList.Add(_stage.PosiblePosition[i]);
}
}
}
return(bestList[UnityEngine.Random.Range(0, bestList.Count)]);
}