public void UpdatePosition(Board board)
{
for (var rank = 0; rank < 16; rank++)
{
for (var file = 0; file < 16; file++)
{
var coord = new Coord(file, rank);
var piece = board.Square[BoardRepresentation.IndexFromCoord(coord.fileIndex, coord.rankIndex)];
squarePieceRenderers[file, rank].sprite = pieceTheme.GetPieceSprite(piece);
squarePieceRenderers[file, rank].transform.position = PositionFromCoord(file, rank, pieceDepth);
}
}
}
private void TryMakeMove(Coord startSquare, Coord targetSquare)
{
var startIndex = BoardRepresentation.IndexFromCoord(startSquare);
var targetIndex = BoardRepresentation.IndexFromCoord(targetSquare);
var moveIsLegal = false;
var chosenMove = new Move();
var moveGenerator = new MoveGenerator();
var wantsKnightPromotion = Input.GetKey(KeyCode.LeftAlt);
var legalMoves = moveGenerator.GenerateMoves(board);
for (var i = 0; i < legalMoves.Count; i++)
{
var legalMove = legalMoves[i];
if (legalMove.StartSquare == startIndex && legalMove.TargetSquare == targetIndex)
{
if (legalMove.IsPromotion)
{
if (legalMove.MoveFlag == Move.Flag.PromoteToQueen && wantsKnightPromotion)
{
continue;
}
if (legalMove.MoveFlag != Move.Flag.PromoteToQueen && !wantsKnightPromotion)
{
continue;
}
}
moveIsLegal = true;
chosenMove = legalMove;
// Debug.Log (legalMove.PromotionPieceType);
break;
}
}
if (moveIsLegal)
{
ChoseMove(chosenMove);
currentState = InputState.None;
}
else
{
CancelPieceSelection();
}
}
public void HighlightLegalMoves(Board board, Coord fromSquare)
{
if (showLegalMoves)
{
var moves = moveGenerator.GenerateMoves(board);
for (var i = 0; i < moves.Count; i++)
{
var move = moves[i];
if (move.StartSquare == BoardRepresentation.IndexFromCoord(fromSquare))
{
var coord = BoardRepresentation.CoordFromIndex(move.TargetSquare);
SetSquareColour(coord, boardTheme.lightSquares.legal, boardTheme.darkSquares.legal);
}
}
}
}
private void HandlePieceSelection(Vector2 mousePos)
{
if (Input.GetMouseButtonDown(0))
{
if (boardUI.TryGetSquareUnderMouse(mousePos, out selectedPieceSquare))
{
var index = BoardRepresentation.IndexFromCoord(selectedPieceSquare);
// If square contains a piece, select that piece for dragging
if (Piece.IsColour(board.Square[index], board.ColourToMove))
{
boardUI.HighlightLegalMoves(board, selectedPieceSquare);
boardUI.SelectSquare(selectedPieceSquare);
currentState = InputState.DraggingPiece;
}
}
}
}
void HandlePieceSelection(Vector2 mousePos)
{
if (Input.GetMouseButtonDown(0))
{
if (boardUI.TryGetSquareUnderMouse(mousePos, out selectedPieceSquare))
{
int index = BoardRepresentation.IndexFromCoord(selectedPieceSquare);
// Podniesienie figury jeśli jest w danym kwadracie
if (Piece.IsColour(board.Square[index], board.ColourToMove))
{
boardUI.HighlightLegalMoves(board, selectedPieceSquare);
boardUI.SelectSquare(selectedPieceSquare);
currentState = InputState.DraggingPiece;
}
}
}
}
private void HandlePiecePlacement(Vector2 mousePos)
{
Coord targetSquare;
if (boardUI.TryGetSquareUnderMouse(mousePos, out targetSquare))
{
if (targetSquare.Equals(selectedPieceSquare))
{
boardUI.ResetPiecePosition(selectedPieceSquare);
if (currentState == InputState.DraggingPiece)
{
currentState = InputState.PieceSelected;
}
else
{
currentState = InputState.None;
boardUI.DeselectSquare(selectedPieceSquare);
}
}
else
{
var targetIndex =
BoardRepresentation.IndexFromCoord(targetSquare.fileIndex, targetSquare.rankIndex);
if (Piece.IsColour(board.Square[targetIndex], board.ColourToMove) && board.Square[targetIndex] != 0)
{
CancelPieceSelection();
HandlePieceSelection(mousePos);
}
else
{
TryMakeMove(selectedPieceSquare, targetSquare);
}
}
}
else
{
CancelPieceSelection();
}
}
