flutter: 调整 position 函数顺序
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@ -376,136 +376,6 @@ class Position {
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return legal(move);
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}
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/*
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/// Position::do_move() makes a move, and saves all information necessary
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/// to a StateInfo object. The move is assumed to be legal. Pseudo-legal
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/// moves should be filtered out before this function is called.
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void doMove(int move) {
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bool ret = false;
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MoveType mt = typeOf(move);
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switch (mt) {
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case MoveType.remove:
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// Reset rule 50 counter
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rule50 = 0;
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ret = removePiece(toSq(move));
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break;
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case MoveType.move:
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ret = movePiece(fromSq(move), toSq(move));
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break;
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case MoveType.place:
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ret = putPieceSQ(toSq(move));
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break;
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default:
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break;
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}
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if (!ret) {
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return;
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}
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// Increment ply counters. In particular, rule50 will be reset to zero later on
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// in case of a capture.
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++gamePly;
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++rule50;
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++pliesFromNull;
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_move = move;
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}
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*/
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// 验证移动棋子的着法是否合法
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bool validateMove(int from, int to) {
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// 移动的棋子的选手，应该是当前方
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//if (Color.of(_board[from]) != _sideToMove) return false;
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return true;
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//(StepValidate.validate(this, Move(from, to)));
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}
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// 在判断行棋合法性等环节，要在克隆的棋盘上进行行棋假设，然后检查效果
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// 这种情况下不验证、不记录、不翻译
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void moveTest(Move move, {turnSide = false}) {
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//
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// 修改棋盘
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_grid[move.to] = _grid[move.from];
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_grid[move.from] = Piece.noPiece;
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board[move.to] = board[move.from];
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board[move.from] = Piece.noPiece;
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// 交换走棋方
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if (turnSide) _sideToMove = Color.opponent(_sideToMove);
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}
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bool regret() {
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//
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final lastMove = _recorder.removeLast();
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if (lastMove == null) return false;
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_grid[lastMove.from] = _grid[lastMove.to];
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_grid[lastMove.to] = lastMove.captured;
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board[lastMove.from] = board[lastMove.to];
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board[lastMove.to] = lastMove.captured;
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_sideToMove = Color.opponent(_sideToMove);
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final counterMarks = MillRecorder.fromCounterMarks(lastMove.counterMarks);
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_recorder.halfMove = counterMarks.halfMove;
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_recorder.fullMove = counterMarks.fullMove;
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if (lastMove.captured != Piece.noPiece) {
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//
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// 查找上一个吃子局面（或开局），NativeEngine 需要
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final tempPosition = Position.clone(this);
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final moves = _recorder.reverseMovesToPrevCapture();
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moves.forEach((move) {
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//
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tempPosition._grid[move.from] = tempPosition._grid[move.to];
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tempPosition._grid[move.to] = move.captured;
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tempPosition._sideToMove = Color.opponent(tempPosition._sideToMove);
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});
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_recorder.lastCapturedPosition = tempPosition.fen();
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}
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result = GameResult.pending;
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return true;
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}
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String movesSinceLastCaptured() {
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//
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var steps = '', posAfterLastCaptured = 0;
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for (var i = _recorder.stepsCount - 1; i >= 0; i--) {
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if (_recorder.stepAt(i).captured != Piece.noPiece) break;
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posAfterLastCaptured = i;
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}
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for (var i = posAfterLastCaptured; i < _recorder.stepsCount; i++) {
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steps += ' ${_recorder.stepAt(i).move}';
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}
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return steps.length > 0 ? steps.substring(1) : '';
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}
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get manualText => _recorder.buildManualText();
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get side => _sideToMove;
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changeSideToMove() => _sideToMove = Color.opponent(_sideToMove);
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get halfMove => _recorder.halfMove;
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get fullMove => _recorder.fullMove;
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get lastMove => _recorder.last;
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get lastCapturedPosition => _recorder.lastCapturedPosition;
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void doMove(Move m) {
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//
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//if (!validateMove(m)) return null;
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@ -1675,4 +1545,96 @@ class Position {
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return (s == 16 || s == 18 || s == 20 || s == 22);
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}
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///////////////////////////////////////////////////////////////////////////////
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// 验证移动棋子的着法是否合法
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bool validateMove(int from, int to) {
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// 移动的棋子的选手，应该是当前方
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//if (Color.of(_board[from]) != _sideToMove) return false;
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return true;
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//(StepValidate.validate(this, Move(from, to)));
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}
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// 在判断行棋合法性等环节，要在克隆的棋盘上进行行棋假设，然后检查效果
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// 这种情况下不验证、不记录、不翻译
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void moveTest(Move move, {turnSide = false}) {
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//
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// 修改棋盘
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_grid[move.to] = _grid[move.from];
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_grid[move.from] = Piece.noPiece;
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board[move.to] = board[move.from];
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board[move.from] = Piece.noPiece;
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// 交换走棋方
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if (turnSide) _sideToMove = Color.opponent(_sideToMove);
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}
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bool regret() {
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//
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final lastMove = _recorder.removeLast();
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if (lastMove == null) return false;
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_grid[lastMove.from] = _grid[lastMove.to];
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_grid[lastMove.to] = lastMove.captured;
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board[lastMove.from] = board[lastMove.to];
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board[lastMove.to] = lastMove.captured;
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_sideToMove = Color.opponent(_sideToMove);
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final counterMarks = MillRecorder.fromCounterMarks(lastMove.counterMarks);
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_recorder.halfMove = counterMarks.halfMove;
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_recorder.fullMove = counterMarks.fullMove;
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if (lastMove.captured != Piece.noPiece) {
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//
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// 查找上一个吃子局面（或开局），NativeEngine 需要
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final tempPosition = Position.clone(this);
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final moves = _recorder.reverseMovesToPrevCapture();
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moves.forEach((move) {
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//
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tempPosition._grid[move.from] = tempPosition._grid[move.to];
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tempPosition._grid[move.to] = move.captured;
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tempPosition._sideToMove = Color.opponent(tempPosition._sideToMove);
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});
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_recorder.lastCapturedPosition = tempPosition.fen();
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}
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result = GameResult.pending;
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return true;
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}
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String movesSinceLastCaptured() {
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//
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var steps = '', posAfterLastCaptured = 0;
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for (var i = _recorder.stepsCount - 1; i >= 0; i--) {
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if (_recorder.stepAt(i).captured != Piece.noPiece) break;
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posAfterLastCaptured = i;
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}
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for (var i = posAfterLastCaptured; i < _recorder.stepsCount; i++) {
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steps += ' ${_recorder.stepAt(i).move}';
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}
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return steps.length > 0 ? steps.substring(1) : '';
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}
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get manualText => _recorder.buildManualText();
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get side => _sideToMove;
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changeSideToMove() => _sideToMove = Color.opponent(_sideToMove);
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get halfMove => _recorder.halfMove;
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get fullMove => _recorder.fullMove;
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get lastMove => _recorder.last;
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get lastCapturedPosition => _recorder.lastCapturedPosition;
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}
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