private Square GetMouseSquare()
{
if (!Camera.main)
{
return(null);
}
RaycastHit hit;
if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hit, Mathf.Infinity, LayerMask.GetMask("Board")))
{
int x = (int)Mathf.Floor((hit.point.x - boardCenter.x) / tileSize) + 4, y = (int)Mathf.Floor((hit.point.z - boardCenter.z) / tileSize) + 4;
return((Square.Exists(x, y)) ? Square.At(x, y) : null);
}
return(null);
}
private bool CanQueensideCastle() {
bool overAndIntoCheck = false;
foreach (Piece p in Board.instance.GetOpposingPieces(color)) {
foreach (Board.Move move in p.GetAvailableMoves(Board.instance.GetBoard())) {
Board.Square s = (color == Color.white ? Board.instance.GetSquare(0, 1) : Board.instance.GetSquare(7, 1));
Board.Square s2 = (color == Color.white ? Board.instance.GetSquare(0, 2) : Board.instance.GetSquare(7, 2));
Board.Square s3 = (color == Color.white ? Board.instance.GetSquare(0, 3) : Board.instance.GetSquare(7, 3));
if ((move.file == s.file && move.rank == s.rank) || (move.file == s2.file && move.rank == s2.rank) || (move.file == s3.file && move.rank == s3.rank)) {
overAndIntoCheck = true;
}
}
}
return !overAndIntoCheck && moveHistory.Count == 0 && checkCount == 0 && (color == Color.white ? Board.instance.GetSquare(0, 1).piece == null : Board.instance.GetSquare(7, 1).piece == null)
&& (color == Color.white ? Board.instance.GetSquare(0, 2).piece == null : Board.instance.GetSquare(7, 2).piece == null)
&& (color == Color.white ? Board.instance.GetSquare(0, 3).piece == null : Board.instance.GetSquare(7, 3).piece == null)
&& (color == Color.white ? Board.instance.GetSquare(0, 0).piece != null && Board.instance.GetSquare(0, 0).piece.moveHistory.Count == 0 :
Board.instance.GetSquare(7, 0).piece != null && Board.instance.GetSquare(7, 0).piece.moveHistory.Count == 0);
}
private void Take(Square square)
{
GamePiece g = Get(square);
Set(square, null);
g.Highlight(false);
if (g.color == PieceColor.White)
{
int index = whitePiecesTaken.Count(x => x != null);
whitePiecesTaken[index] = g;
g.Move(GetSquareCenter(square), whiteGraveyard.GetChild(index).position);
}
else
{
int index = blackPiecesTaken.Count(x => x != null);
blackPiecesTaken[index] = g;
g.Move(GetSquareCenter(square), blackGraveyard.GetChild(index).position);
}
}
/*
* private Vector3 GetSquareCenter(Square square, bool local = false)
* {
* return (local) ? tileRight * (square.file + 0.5f) + tileForward * (square.rank + 0.5f) : boardCenter + tileRight * (square.file - 3.5f) + tileForward * (square.rank - 3.5f);
* }
*/
private Vector3 GetSquareCenter(Square square)
{
return(boardCenter + tileRight * (square.file - 3.5f) + tileForward * (square.rank - 3.5f));
}
private void Set(Square square, GamePiece piece)
{
gamePieces[8 * square.rank + square.file] = piece;
}
private GamePiece Get(Square square)
{
return(gamePieces[8 * square.rank + square.file]);
}
void Update()
{
if (updateSceneCoroutine != null || board.status != BoardStatus.Playing || resigned)
{
return;
}
if (playerAI != null && playerAI.color == board.whoseTurn)
{
#if UNITY_WEBGL || UNITY_EDITOR
if (!findingMove)
{
playerAI.FindMove(new Board(board));
findingMove = true;
}
else if (!playerAI.isCalculating)
{
findingMove = false;
#else
if (playerAIThread == null)
{
playerAIThread = new Thread(new ParameterizedThreadStart(playerAI.FindMove));
playerAIThread.Start(new Board(board));
}
else if (!playerAIThread.IsAlive)
{
playerAIThread = null;
#endif
Move move = playerAI.foundMove;
bool success = board.MakeMove(move);
Debug.Assert(success);
UpdateScene((board.sideEffect != null) ? new List <Move>()
{
move, board.sideEffect.Value
} : new List <Move>()
{
move
});
}
}
else
{
mouseSquare = GetMouseSquare();
if (Input.GetMouseButtonDown(0))
{
if (mouseSquare != null)
{
if (selectedSquare == null) // clicked on the board, but no previously selected square
{
GamePiece g = Get(mouseSquare);
if (g != null && g.color == board.whoseTurn) // only select if it's one of the current player's pieces
{
Square temp = mouseSquare;
mouseSquare = null; // remove highlight before selecting
selectedSquare = temp;
}
}
else if (mouseSquare == selectedSquare)
{
selectedSquare = null;
mouseSquare = null; // ensures the piece at mouseSquare can be re-highlighted on next update (after piece is finished moving)
}
else // the player has attempted to make a move
{
Move move = new Move(selectedSquare, mouseSquare);
if (board.MakeMove(move))
{
selectedSquare = null;
mouseSquare = null; // ensures the piece at mouseSquare can be re-highlighted on next update (after piece is finished moving)
GamePiece g = Get(move.from), h = Get(move.to);
g.transform.position = GetSquareCenter(move.to);
if (h != null)
{
Take(move.to);
waitForPiecesCoroutine = StartCoroutine(WaitForPiecesRoutine(new List <GamePiece>()
{
g, h
}));
}
else
{
waitForPiecesCoroutine = StartCoroutine(WaitForPiecesRoutine(new List <GamePiece>()
{
g
}));
}
Set(move.from, null);
Set(move.to, g);
UpdateScene((board.sideEffect != null) ? new List <Move>()
{
board.sideEffect.Value
} : null);
}
}
}
}
}
}
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(KeyCode.Escape))
{
SceneManager.LoadScene("Menu");
}
if (Input.GetMouseButtonDown(0))
{
RaycastHit hitInfo = new RaycastHit();
bool hit = Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hitInfo);
if (hit)
{
if (hitInfo.transform.gameObject.tag == "Piece")
{
if (selected)
{
selected.GetComponent <Light>().enabled = false;
}
selected = hitInfo.transform.gameObject;
selectedPiece = selected.GetComponent <Piece>();
if (selectedPiece.color != turnColor)
{
return;
}
Board.instance.ClearMoves();
King k = Board.instance.GetKing(turnColor);
foreach (Board.Move m in selectedPiece.GetAvailableMoves(Board.instance.GetBoard()))
{
if (k.CheckForCheck(Board.instance.GetBoard()))
{
if (k.checkCount > 1)
{
selectedPiece = k;
break;
}
List <Board.Move> blocks = GetBlocks();
foreach (Board.Move block in blocks)
{
if (m.piece == selectedPiece)
{
Board.instance.CreateMove(m.file, m.rank);
}
}
}
else
{
checkText.text = "";
Board.instance.CreateMove(m.file, m.rank);
}
}
hitInfo.transform.GetComponent <Light>().enabled = true;
}
else if (hitInfo.transform.gameObject.tag == "Move")
{
Board.Square square = Board.instance.GetSquareFromString(hitInfo.transform.parent.name);
Board.instance.MakeMove(new Board.Move(square.file, square.rank, selectedPiece), selected);
Board.instance.GetKing(turnColor).checkCount = 0;
SwitchTurns();
StartCoroutine(RotateCamera(selectedPiece.color == Color.white));
}
}
}
}
