private bool ChechCheckmateState()
{
FigureOnBoard kingOfTheCurrentPlayer = GetKing(CurrentPlayer.Color);
// Check if the king can move in a safe place.
IEnumerable <Point> possiblePositionsOfKing = GetPossibleFigurePositions(kingOfTheCurrentPlayer, true);
IEnumerable <Direction> enemyDirections = GetAllFiguresDirectionsByColor(EnemyPlayer.Color);
IEnumerable <Point> enemyDirectionsPositions = GetAllFiguresPositionsByColor(EnemyPlayer.Color);
foreach (Point kingPosition in possiblePositionsOfKing)
{
if (!enemyDirectionsPositions.Contains(kingPosition) && !CheckCheckStateAfterMove(kingOfTheCurrentPlayer, kingPosition))
{
return(false);
}
}
// Check if any of figures can block the king.
IEnumerable <Point> currentPlayerFiguresPositions = GetAllFiguresPositionsByColor(CurrentPlayer.Color);
foreach (Point potentialCurrentPlayerFigurePosition in currentPlayerFiguresPositions)
{
if (CheckIfPointBlocksDirections(enemyDirections, kingOfTheCurrentPlayer.Position, potentialCurrentPlayerFigurePosition))
{
return(false);
}
}
return(true);
}
private void TryToMoveTo(FigureOnBoard figure, Point position)
{
if (!GetPossibleFigurePositions(figure).Contains(position))
{
return;
}
if (CheckIfTryingToCastle(position))
{
Tuple <FigureOnBoard, Point> rookAndPosition = GetCastlingRook(position);
rookAndPosition.Item1.Position = rookAndPosition.Item2;
}
FigureOnBoard figureOnPosition = GetFigureByPosition(position);
if (figureOnPosition != null)
{
DestroyFigure(figureOnPosition);
}
figure.Position = position;
figure.Figure.Step();
SwitchPlayer();
CheckmateState state = GetCheckmateState();
if (state == CheckmateState.Checkmate)
{
GameOver();
}
}
private void copySelectedFigure()
{
if (selectedFigure != null)
{
bufferedFigure = selectedFigure;
btnPaste.Enabled = true;
}
}
public bool move(int from, int to)
{
FigureOnBoard tmp = (FigureOnBoard)mas[from];
mas.Remove(tmp);
mas.Insert(to, tmp);
return(true);
}
public bool shuffle(int firstIndex, int secondIndex)
{
FigureOnBoard tmp = (FigureOnBoard)mas[secondIndex];
mas[secondIndex] = mas[firstIndex];
mas[firstIndex] = tmp;
return(true);
}
public bool add(FigureOnBoard addingFigure)
{
if (mas.Add(addingFigure) != 0)
{
return(true);
}
else
{
return(false);
}
}
public IEnumerable <Point> GetPossibleFigurePositions(FigureOnBoard figure, bool isPotentialCalculation = false)
{
IEnumerable <Direction> directions = GetFigureDirections(figure, isPotentialCalculation);
foreach (Direction direction in directions)
{
foreach (Point position in direction.Positions)
{
yield return(position);
}
}
}
private void unselectFigure()
{
if (selectedFigure != null)
{
selectedFigure.figure.unselectFigure();
btnCopy.Enabled = false;
btnDelete.Enabled = false;
btnInverse.Enabled = false;
btnMirrorHorizontal.Enabled = false;
btnMirrorVertical.Enabled = false;
btnMoveBack.Enabled = false;
btnMoveFront.Enabled = false;
}
selectedFigure = null;
}
private void ReturnLastAction()
{
CanSaveState obj = savedStateStack.Pop();
obj.backToPrevious();
if (!bkgImages.Contains(selectedFigure))
{
selectedFigure = null;
}
UpdateGraphics();
if (savedStateStack.Count == 0)
{
btnReturnLastAction.Enabled = false;
}
}
private void deleteFigure(FigureOnBoard selectedFigure)
{
if (selectedFigure.figure is BkgImage)
{
DeletedImageState deletedImageState = new DeletedImageState(bkgImages, selectedFigure);
saveFigureState(deletedImageState);
bkgImages.remove(selectedFigure);
}
else
{
facades.remove(selectedFigure);
}
unselectFigure();
UpdateGraphics();
}
private void selectFigure(FigureOnBoard item)
{
if (selectedFigure != null)
{
selectedFigure.figure.unselectFigure();
}
btnReturnLastAction.Enabled = true;
selectedFigure = item;
selectedFigure.figure.selectFigure();
btnCopy.Enabled = true;
btnDelete.Enabled = true;
btnInverse.Enabled = true;
btnMirrorHorizontal.Enabled = true;
btnMirrorVertical.Enabled = true;
btnMoveBack.Enabled = true;
btnMoveFront.Enabled = true;
}
public void DoActionByPositions(Point position)
{
if (currentlySelectedFigure != null)
{
TryToMoveTo(currentlySelectedFigure, position);
currentlySelectedFigure.Selected = false;
currentlySelectedFigure = null;
}
FigureOnBoard figure = GetCurrentPlayerFigureByPosition(position);
if (figure != null)
{
currentlySelectedFigure = figure;
currentlySelectedFigure.Selected = true;
}
}
private IEnumerable <Direction> GetFigureDirections(FigureOnBoard figure, bool isPotentialCalculation = false)
{
IEnumerable <Direction> figureDirections = figure.Figure.PossiblePositionsToMove();
Direction newDirection = new Direction();
foreach (Direction direction in figureDirections)
{
foreach (Point vector in direction.Positions)
{
Point potentialPosition = figure.Position.Add(vector);
FigureOnBoard figureOnPosition = GetFigureByPosition(potentialPosition);
if (potentialPosition.CheckIfOutsideTheBoard() ||
figureOnPosition?.Color == figure.Color)
{
break;
}
else if (!isPotentialCalculation && CheckCheckStateAfterMove(figure, potentialPosition))
{
break;
}
else if (CheckIfFigureCanMoveTo(figure, potentialPosition, isPotentialCalculation))
{
newDirection.Positions.Add(potentialPosition);
}
else if (CheckIfFigureCanBeatTo(figure, potentialPosition))
{
newDirection.Positions.Add(potentialPosition);
break;
}
else
{
break;
}
}
}
IEnumerable <Point> castlingPositions = GetCastlingPositions(figure);
foreach (Point castlingPosition in castlingPositions)
{
newDirection.Positions.Add(castlingPosition);
}
yield return(newDirection);
}
/// <summary>
/// Block a figure’s ability to move if this leads to a check.
/// </summary>
/// <param name="figure">Figure to move.</param>
/// <param name="potentialPosition">Potential position of a figure.</param>
/// <returns>True if movement leads to a check.</returns>
private bool CheckCheckStateAfterMove(FigureOnBoard figure, Point potentialPosition)
{
FigureOnBoard kingOfCurrentPlayer = GetKing(CurrentPlayer.Color);
if (kingOfCurrentPlayer == null)
{
return(false);
}
Point currentPosition = figure.Position;
figure.Position = potentialPosition;
bool result = ChechCheckState();
figure.Position = currentPosition;
return(result);
}
public void addFigure(Figure figure, int x, int y)
{
if (figure is BkgImage)
{
FigureOnBoard figureOnBoard = new FigureOnBoard(figure, x, y);
addedImageState addImageState = new addedImageState(bkgImages, figureOnBoard);
saveFigureState(addImageState);
bkgImages.add(figureOnBoard);
if (selectedFigure != null)
{
unselectFigure();
}
selectFigure(figureOnBoard);
}
else
{
facades.add(new FigureOnBoard(figure, x, y));
}
UpdateGraphics();
}
private bool CheckIfFigureCanBeatTo(FigureOnBoard figure, Point potentialPosition)
{
FigureOnBoard figureOnPotentialPosition = GetFigureByPosition(potentialPosition);
if (figure.Figure is Pawn)
{
if (potentialPosition.Subtract(figure.Position).X != 0) // If trying to move diagonally.
{
return(figureOnPotentialPosition != null &&
figureOnPotentialPosition.Color != figure.Color);
}
}
else
{
return(figureOnPotentialPosition != null &&
figureOnPotentialPosition.Color != figure.Color);
}
return(false);
}
private bool ChechCheckState()
{
FigureOnBoard kingOfCurrentPlayer = GetKing(CurrentPlayer.Color);
if (kingOfCurrentPlayer == null)
{
return(false);
}
IEnumerable <Direction> enemyDirections = GetAllFiguresDirectionsByColor(EnemyPlayer.Color);
foreach (Direction enemyDirection in enemyDirections)
{
if (enemyDirection.Positions.Contains(kingOfCurrentPlayer.Position))
{
return(true);
}
}
return(false);
}
private bool CheckIfFigureCanMoveTo(FigureOnBoard figure, Point potentialPosition, bool isPotentialCalculation = false)
{
FigureOnBoard figureOnPotentialPosition = GetFigureByPosition(potentialPosition);
if (figureOnPotentialPosition == null)
{
if (figure.Figure is Pawn)
{
if (potentialPosition.Subtract(figure.Position).X == 0) // If trying to move vertically.
{
return(true);
}
}
else
{
return(true);
}
}
return(false);
}
public CheckmateState GetCheckmateState()
{
if (CurrentPlayer == null)
{
return(CheckmateState.None);
}
FigureOnBoard kingOfCurrentPlayer = GetKing(CurrentPlayer.Color);
if (kingOfCurrentPlayer == null)
{
return(CheckmateState.None);
}
if (ChechCheckmateState())
{
return(CheckmateState.Checkmate);
}
else if (ChechCheckState())
{
return(CheckmateState.Check);
}
return(CheckmateState.None);
}
private IEnumerable <Point> GetCastlingPositions(FigureOnBoard kingOnBoard)
{
if (!(kingOnBoard.Figure is King king) ||
!king.IsNeverMoved)
{
yield break;
}
castlingConditions = new Dictionary <Tuple <FigureOnBoard, Point>, Tuple <FigureOnBoard, Point> >();
int kingXPos = (int)kingOnBoard.Position.X;
int kingYPos = (int)kingOnBoard.Position.Y;
List <FigureOnBoard> rooks = new List <FigureOnBoard>
{
GetRookForCastling(true, kingYPos),
GetRookForCastling(false, kingYPos)
};
foreach (FigureOnBoard rook in rooks)
{
if (rook == null || kingOnBoard.Color != rook.Color)
{
continue;
}
bool isPathClear = true;
int rookXPos = (int)rook.Position.X;
int fromX, toX;
Point additionalVector;
Point additionalRooksPotentialPosition;
if (rookXPos < kingXPos)
{
fromX = rookXPos;
toX = kingXPos;
additionalVector = new Point(-2, 0);
additionalRooksPotentialPosition = kingOnBoard.Position.Add(additionalVector).Add(new Point(1, 0));
}
else
{
fromX = kingXPos;
toX = rookXPos;
additionalVector = new Point(2, 0);
additionalRooksPotentialPosition = kingOnBoard.Position.Add(additionalVector).Add(new Point(-1, 0));
}
for (int x = fromX + 1; x < toX; x++)
{
if (GetFigureByPosition(new Point(x, kingYPos)) != null)
{
isPathClear = false;
break;
}
}
if (isPathClear)
{
Point kingsPotentialPosition = kingOnBoard.Position.Add(additionalVector);
castlingConditions.Add(new Tuple <FigureOnBoard, Point>(kingOnBoard, kingsPotentialPosition), new Tuple <FigureOnBoard, Point>(rook, additionalRooksPotentialPosition));
yield return(kingsPotentialPosition);
}
}
}
private void DestroyFigure(FigureOnBoard figure)
{
FiguresOnBoard.Remove(figure);
}
private int getIndex(FigureOnBoard selectedFigure)
{
return(bkgImages.getIndex(selectedFigure));
}
public ICollection <FigureOnBoard> getFacades()
{
LinkedList <FigureOnBoard> facades = new LinkedList <FigureOnBoard>();
try
{
_appli.StartSessionFromCallParams(iParamsBlock);
}catch (Exception e)
{
throw new MethodAccessException("Cannot start session: " + e.StackTrace);
}
int n = _scene.SelectionGetObjectsNb();
if (n < 1)
{
throw new ArgumentNullException("Please selected object in scene");
}
int objectId = 0;
float x = 0, y = 0, z = 0, width = 0, height = 0, angle = 0, heightScenes, xScenes, yScenes, minX = float.MaxValue, minY = float.MaxValue;
int onOrUnder;
if (!float.TryParse(_scene.SceneGetInfo(SceneEnum.SceneInfo.DIMX), out xScenes) ||
!float.TryParse(_scene.SceneGetInfo(SceneEnum.SceneInfo.DIMY), out yScenes) ||
!float.TryParse(_scene.SceneGetInfo(SceneEnum.SceneInfo.DIMZ), out heightScenes))
{
throw new Exception("cannot get dimension of Scenes");
}
//MessageBox.Show("CountOfElement=" + n);
for (int i = 0; i < n; i++)
{
objectId = _scene.SelectionGetObjectId(i);
if (!searchLabel(objectId))
{
continue;
}
//MessageBox.Show(objectId.ToString());
//MessageBox.Show("x=" + x + " y = " + y + " width=" + width + "height=" + height);
string textureNum = _scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.TEXTURE);
//MessageBox.Show(textureNum);
int textureNumber = -1;
if (!textureNum.Equals(""))
{
try
{
textureNum = textureNum.Split(";,".ToCharArray())[1];
}
catch (Exception)
{
textureNumber = -1;
}
if (!Int32.TryParse(textureNum, out textureNumber))
{
textureNumber = -1;
}
}
//MessageBox.Show(textureNumber.ToString());
if (float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.POSX), out x) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.POSY), out y) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.POSZ), out z) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.DIMX), out width) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.DIMZ), out height) &&
int.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.ON_OR_UNDER), out onOrUnder) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.ANGLEXY), out angle) &&
float.TryParse(_scene.ObjectGetInfo(objectId, SceneEnum.ObjectInfo.ANGLEXY), out angle))
{
FigureOnBoard fig = createFacadeOnBoardFromKdScenes(objectId, textureNumber, x, y, z, width, height, angle, xScenes, yScenes, heightScenes, onOrUnder, getSceneDimension());
if (fig.x < minX)
{
minX = fig.x;
}
if (fig.y < minY)
{
minY = fig.y;
}
facades.AddLast(fig);
}
else
{
MessageBox.Show("I cant get all values from object");
}
}
foreach (FigureOnBoard item in facades)
{
item.x -= (int)minX;
item.y -= (int)minY;
}
return(facades);
}
public virtual void DoAction(BoardPosition bp, bool back = false)
{
var fig = FigureOnBoard.GetFigureByPosition(bp);
if (fig.IsNullObject && ChessMatchCurrentState.CurrentSelectedPosition == BoardPosition.None)
{
return;
}
var prev_bp = ChessMatchCurrentState.PreviousSelectedPosition;
var curr_bp = ChessMatchCurrentState.CurrentSelectedPosition;
SetBPs(ChessMatchCurrentState.CurrentSelectedPosition, bp);
IChessItemModelShort chess = FigureOnBoard.GetFigureByPosition(curr_bp);
IChessItemModelShort prev_chess;
if (prev_bp.horizontal < 0)
{
prev_chess = new NullChessItemModelShort();
}
else
{
prev_chess = FigureOnBoard.GetFigureByPosition(curr_bp);
}
//If there wasn't chosen any position on board
if (prev_chess.IsNullObject)
{
//If there figure on this board position and it's side is current player's side
if (!chess.IsNullObject && ChessMatchCurrentState.CurrentPlayer.Side == chess.Side)
{
Select();
}
}
//If one of the positions on board is chosen
else
{
bool wasMoved = false;
//Check for possible moves
List <bool> temp;
foreach (var possibleMove in FigureOnBoard.GetPossibleMoves(ChessMatchCurrentState.PreviousSelectedPosition, out temp))
{
//If figure can move to this board position
if (possibleMove == ChessMatchCurrentState.CurrentSelectedPosition)
{
Move();
wasMoved = true;
break;
}
}
//If move was not possible
if (!wasMoved)
{
if (!chess.IsNullObject && chess.Side == prev_chess.Side)
{
Select();
}
else
{
SetBPs(prev_bp, curr_bp);
}
}
}
}
public int getIndex(FigureOnBoard figure)
{
return(mas.IndexOf(figure));
}
public bool insert(int index, FigureOnBoard insetingFigure)
{
mas.Insert(index, insetingFigure);
return(true);
}
public bool remove(FigureOnBoard removingFigure)
{
mas.Remove(removingFigure);
return(true);
}
private void SearchForMove()
{
double secs = DateTime.Now.ToOADate() * ChessEngineConstants.SecondsInDay;
double new_secs = secs;
while (new_secs - secs < (double)skill * 0.5)
{
/*Thinking*/
new_secs = DateTime.Now.ToOADate() * ChessEngineConstants.SecondsInDay;
}
chessUCIEngine.Stop();
secs = DateTime.Now.ToOADate() * ChessEngineConstants.SecondsInDay;
new_secs = secs;
bool gotMove = false;
bool isMate = false;
while (!gotMove)
{
new_secs = DateTime.Now.ToOADate() * ChessEngineConstants.SecondsInDay;
if (new_secs - secs > 0.5)
{
secs = new_secs;
int k = 0;
var answers = chessUCIEngine.GetAnswers();
foreach (var answer in answers)
{
if (answer.Contains("bestmove"))
{
if (!(char.IsLetter(answer[9]) && char.IsDigit(answer[10]) && char.IsLetter(answer[11]) && char.IsDigit(answer[12])))
{
throw new System.Exception("Wrong bestmove message format: " + answer);
}
string move_cmd = new string(new char[] { answer[9], answer[10], answer[11], answer[12] });
BoardPosition from_temp;
BoardPosition to_temp;
UciConverter.GetBoardPositionsFromMoveCommand(move_cmd, out from_temp, out to_temp);
IChessItemModelShort fig = FigureOnBoard.GetFigureByPosition(from_temp);
if (fig.IsNullObject || fig.Side != Side)
{
throw new Exception("Wrong figure placement!");
}
List <bool> temp;
var bps = FigureOnBoard.GetPossibleMoves(fig.Pos, out temp);
bool is_to_temp_legal = false;
foreach (var bp in bps)
{
if (bp == to_temp)
{
is_to_temp_legal = true;
break;
}
}
if (!is_to_temp_legal)
{
//throw new Exception("Move Is Not Possibile by chess rules!");
}
if (!answer.Contains("ponder"))
{
isMate = true;
}
gotMove = true;
UciConverter.GetBoardPositionsFromMoveCommand(move_cmd, out from, out to);
break;
}
}
}
}
SetBPs(ChessMatchCurrentState.CurrentSelectedPosition, from);
Select();
SetBPs(from, to);
Move();
}
public override void DoAction(BoardPosition bp, bool back = false)
{
var fig = FigureOnBoard.GetFigureByPosition(bp);
if (fig.IsNullObject && ChessMatchCurrentState.CurrentSelectedPosition == BoardPosition.None)
{
return;
}
var prev_bp = ChessMatchCurrentState.PreviousSelectedPosition;
var curr_bp = ChessMatchCurrentState.CurrentSelectedPosition;
SetBPs(ChessMatchCurrentState.CurrentSelectedPosition, bp);
IChessItemModelShort chess = FigureOnBoard.GetFigureByPosition(ChessMatchCurrentState.CurrentSelectedPosition);
IChessItemModelShort prev_chess;
if (ChessMatchCurrentState.PreviousSelectedPosition.IsNullObject)
{
prev_chess = new NullChessItemModelShort();
}
else
{
prev_chess = FigureOnBoard.GetFigureByPosition(ChessMatchCurrentState.PreviousSelectedPosition);
}
//If there wasn't chosen any position on board
if (prev_chess.IsNullObject)
{
//If there figure on this board position and it's side is current player's side
if (!chess.IsNullObject && ChessMatchCurrentState.CurrentPlayer.Side == chess.Side)
{
Select();
}
}
//If one of the positions on board is chosen
else
{
bool wasMoved = false;
//Check for possible moves
var possibleMoves = new List <BoardPosition>();
List <bool> temp;
if (!back)
{
possibleMoves = FigureOnBoard.GetPossibleMoves(ChessMatchCurrentState.PreviousSelectedPosition, out temp);
}
else
{
for (byte i = 0; i < FigureOnBoard.BoardSizeX; i++)
{
for (byte j = 0; j < FigureOnBoard.BoardSizeY; j++)
{
possibleMoves.Add(new BoardPosition(i, j));
}
}
}
foreach (var possibleMove in possibleMoves)
{
//If figure can move to this board position
if (possibleMove == ChessMatchCurrentState.CurrentSelectedPosition)
{
Move();
wasMoved = true;
break;
}
}
//If move was not possible
if (!wasMoved)
{
if (!chess.IsNullObject && chess.Side == prev_chess.Side)
{
Select();
}
else
{
SetBPs(prev_bp, curr_bp);
}
}
}
}