//Alpha Beta
void Ai()
{
_bestMoveSet = null;
_bestPiece = null;
_nodeGeneration = 0;
_maxPruning = 0;
_minPruning = 0;
_maxDepth = 0;
AlphaBetaSearch(_checkerBoard, _currentTurn);
//If it never found something b/c it was limited in depth
if (_bestMoveSet == null && _bestPiece == null){
var randomPiece = Rand.Next(0, _checkerBoard.MovablePieces[_currentTurn].Count - 1);
var randomMove = Rand.Next(0, _checkerBoard.MoveDict[_checkerBoard.MovablePieces[_currentTurn][randomPiece]].Count - 1);
_bestMoveSet = _checkerBoard.MoveDict[_checkerBoard.MovablePieces[_currentTurn][randomPiece]][randomMove];
_bestPiece = _checkerBoard.MovablePieces[_currentTurn][randomPiece];
}
_checkerBoard.SelectedPiece = _bestPiece;
if (_bestPiece != null)
Console.WriteLine("Moving Piece at Row: {0}, Col: {1}", _bestPiece.Row, _bestPiece.Col);
if (_bestMoveSet != null)
Console.WriteLine("{0}", _bestMoveSet.MoveList.ToList());
Console.WriteLine("Max Depth: {0}", _maxDepth);
Console.WriteLine("# of Pruning in Max: {0}", _maxPruning);
Console.WriteLine("# of Pruning in Min: {0}", _minPruning);
Console.WriteLine("# of Nodes Generated: {0}", _nodeGeneration);
Console.WriteLine("Time Elapsed: {0}", TimeElapsed);
if (_selectedParticle != null)
{
_selectedParticle.status = ParticleStatus.Dead;
_selectedParticle = null;
}
if (_bestPiece != null)
_selectedParticle = _particleManager.Spawn(_particleManager.particleSystemInfoDict["fireSmall"], _checkerBoard.GetCenterOfTile(_bestPiece.Row, _bestPiece.Col));
Thread.Sleep(TimeDelay);
//Handle the move to that location
Debug.Assert(_bestMoveSet != null, "bestMove != null");
_checkerBoard.HandleMove(_bestMoveSet, TimeDelay);
if (_selectedParticle != null)
{
_selectedParticle.status = ParticleStatus.Dead;
_selectedParticle = null;
}
}
public void HandleInput(GameTime gameTime)
{
lastKeyboardState = currentKeyboardState;
lastGamePadState = currentGamePadState;
currentKeyboardState = Keyboard.GetState();
currentGamePadState = GamePad.GetState(PlayerIndex.One);
// Check for exit.
if (currentKeyboardState.IsKeyDown(Keys.Escape) ||
currentGamePadState.Buttons.Back == ButtonState.Pressed)
{
Exit();
}
if (CurrentGameStatus == GameStatus.Setup)
{
}
else if (CurrentGameStatus == GameStatus.InProgress)
{
if (Mouse.GetState().LeftButton == Microsoft.Xna.Framework.Input.ButtonState.Pressed)
{
if ((CurrentVsType == VsType.PlayerVsCpu && _currentTurn == PlayerColor) || CurrentVsType == VsType.PlayerVsPlayer)
{
Vector2 worldPosition = Vector2.Transform(new Vector2(Mouse.GetState().X, Mouse.GetState().Y), Matrix.Invert(_cam.get_transformation(GraphicsDevice)));
CheckerTile tile = _checkerBoard.Board.GetCheckerTile(worldPosition);
//Handle mouse input for the game if it is player vs player or (player vs cpu if it is the player's turn)
if (CurrentVsType == VsType.PlayerVsPlayer || CurrentVsType == VsType.PlayerVsCpu && _currentTurn == PlayerColor)
{
//Check that the user clicked on a tile
if (tile != null)
{
//User clicked on his own piece
var checkerPiece = _checkerBoard.GetCheckerPiece(tile);
if ((checkerPiece) != null && checkerPiece.Color == _currentTurn)
{
_checkerBoard.SelectedPiece = checkerPiece;
if (_selectedParticle != null)
{
_selectedParticle.status = ParticleStatus.Dead;
_selectedParticle = null;
}
_selectedParticle = _particleManager.Spawn(_particleManager.particleSystemInfoDict["fireSmall"], _checkerBoard.GetCenterOfTile(checkerPiece.Row, checkerPiece.Col));
}
//If a user has selected a piece and the piece is a movable piece
if (_checkerBoard.SelectedPiece != null && _checkerBoard.MovablePieces[_currentTurn].Contains(_checkerBoard.SelectedPiece)
&& _checkerBoard.MoveDict.ContainsKey(_checkerBoard.SelectedPiece) && _checkerBoard.MoveDict[_checkerBoard.SelectedPiece].Any(moveSet => moveSet.MoveList.First().Row == tile.Row && moveSet.MoveList.First().Col == tile.Col))
{
//Handle the move to that location
_checkerBoard.HandleMove(tile.Row, tile.Col);
if (_selectedParticle != null)
{
_selectedParticle.status = ParticleStatus.Dead;
_selectedParticle = null;
}
//Move to the next turn
_currentTurn = _checkerBoard.NextTurn(_currentTurn);
}
}
}
}
}
}
}
