基于Qt平台使用C++技术开发的国际象棋游戏.zip

#include "Board.h" #include <QPainter> #include <QMouseEvent> #include <QDebug> #define GetRowCol(__row, __col, __id) \ int __row = _s[__id]._row;\ int __col = _s[__id]._col Board::Board(QWidget *parent) : QFrame(parent) { this->_r = 20; setMinimumSize(_r*18+1, _r*20+1); init(true); } Board::~Board() { } void Board::init(bool bRedSide) { for(int i=0; i<32; ++i) { _s[i].init(i); } if(bRedSide) { for(int i=0; i<32; ++i) { _s[i].rotate(); } } _selectid = -1; _bRedTurn = true; _bSide = bRedSide; update(); } void Board::paintEvent(QPaintEvent *) { int r = height()/20; _r = r; _off = QPoint(r+1, r+1); QPainter p(this); p.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing); p.save(); drawPlate(p); p.restore(); p.save(); drawPlace(p); p.restore(); p.save(); drawInitPosition(p); p.restore(); p.save(); drawStone(p); p.restore(); } void Board::drawStone(QPainter &p) { for(int i=0; i<32; i++) { drawStone(p, i); } } bool Board::isDead(int id) { if(id == -1)return true; return _s[id]._dead; } void Board::drawStone(QPainter &p, int id) { if(isDead(id)) return; QColor color; if(red(id)) color = Qt::red; else color = Qt::black; p.setPen(QPen(QBrush(color), 2)); if(id == _selectid) p.setBrush(Qt::gray); else p.setBrush(Qt::yellow); p.drawEllipse(cell(id)); p.setFont(QFont("system", _r*1.2, 700)); p.drawText(cell(id), name(id), QTextOption(Qt::AlignCenter)); } QString Board::name(int id) { return _s[id].name(); } bool Board::red(int id) { return _s[id]._red; } void Board::drawInitPosition(QPainter &p, int row, int col) { QPoint pt = center(row, col); QPoint off = QPoint(_r/6, _r/6); int len = _r/3; QPoint ptStart; QPoint ptEnd; if(col != 0) { /* 左上角 */ ptStart = QPoint(pt.x() - off.x(), pt.y() - off.y()); ptEnd = ptStart + QPoint(-len, 0); p.drawLine(ptStart, ptEnd); ptEnd = ptStart + QPoint(0, -len); p.drawLine(ptStart, ptEnd); /* 左下角 */ ptStart = QPoint(pt.x() - off.x(), pt.y() + off.y()); ptEnd = ptStart + QPoint(-len, 0); p.drawLine(ptStart, ptEnd); ptEnd = ptStart + QPoint(0, +len); p.drawLine(ptStart, ptEnd); } if(col != 8) { /* 右下角 */ ptStart = QPoint(pt.x() + off.x(), pt.y() + off.y()); ptEnd = ptStart + QPoint(+len, 0); p.drawLine(ptStart, ptEnd); ptEnd = ptStart + QPoint(0, +len); p.drawLine(ptStart, ptEnd); /* 右上角 */ ptStart = QPoint(pt.x() + off.x(), pt.y() - off.y()); ptEnd = ptStart + QPoint(+len, 0); p.drawLine(ptStart, ptEnd); ptEnd = ptStart + QPoint(0, -len); p.drawLine(ptStart, ptEnd); } } void Board::drawInitPosition(QPainter &p) { drawInitPosition(p, 3, 0); drawInitPosition(p, 3, 2); drawInitPosition(p, 3, 4); drawInitPosition(p, 3, 6); drawInitPosition(p, 3, 8); drawInitPosition(p, 6, 0); drawInitPosition(p, 6, 2); drawInitPosition(p, 6, 4); drawInitPosition(p, 6, 6); drawInitPosition(p, 6, 8); drawInitPosition(p, 2, 1); drawInitPosition(p, 2, 7); drawInitPosition(p, 7, 1); drawInitPosition(p, 7, 7); } void Board::drawPlace(QPainter &p) { p.drawLine(center(0, 3), center(2, 5)); p.drawLine(center(2, 3), center(0, 5)); p.drawLine(center(9, 3), center(7, 5)); p.drawLine(center(7, 3), center(9, 5)); } void Board::drawPlate(QPainter &p) { for(int i=0; i<10; ++i) { if(i==0 || i==9) { p.setPen(QPen(Qt::black, 3, Qt::SolidLine)); } else { p.setPen(QPen(Qt::black, 1, Qt::SolidLine)); } p.drawLine(center(i, 0), center(i, 8)); } for(int i=0; i<9; ++i) { if(i==0 || i==8) { p.setPen(QPen(Qt::black, 3, Qt::SolidLine)); p.drawLine(center(0, i), center(9, i)); } else { p.setPen(QPen(Qt::black, 1, Qt::SolidLine)); p.drawLine(center(0, i), center(4, i)); p.drawLine(center(5, i), center(9, i)); } } } QPoint Board::center(int row, int col) { QPoint pt(_r*col*2, _r*row*2); return pt + _off; } QPoint Board::center(int id) { return center(_s[id]._row, _s[id]._col); } QPoint Board::topLeft(int row, int col) { return center(row, col) - QPoint(_r, _r); } QPoint Board::topLeft(int id) { return center(id) - QPoint(_r, _r); } QRect Board::cell(int row, int col) { return QRect(topLeft(row, col), QSize(_r*2-1, _r*2-1)); } QRect Board::cell(int id) { return QRect(topLeft(id), QSize(_r*2-1, _r*2-1)); } bool Board::getClickRowCol(QPoint pt, int &row, int &col) { for(row=0; row<=9; ++row) { for(col=0; col<=8; ++col) { QPoint distance = center(row, col) - pt; if(distance.x() * distance.x() + distance.y() * distance.y() < _r* _r) return true; } } return false; } void Board::mouseReleaseEvent(QMouseEvent *ev) { if(ev->button() != Qt::LeftButton) { return; } click(ev->pos()); } bool Board::canSelect(int id) { return _bRedTurn == _s[id]._red; } void Board::trySelectStone(int id) { if(id == -1) return; if(!canSelect(id)) return; _selectid = id; update(); } bool Board::sameColor(int id1, int id2) { if(id1 == -1 || id2 == -1) return false; return red(id1) == red(id2); } void Board::tryMoveStone(int killid, int row, int col) { if(killid != -1 && sameColor(killid, _selectid)) { trySelectStone(killid); return; } bool ret = canMove(_selectid, killid, row, col); if(ret) { moveStone(_selectid, killid, row, col); _selectid = -1; update(); } } int Board::getStoneCountAtLine(int row1, int col1, int row2, int col2) { int ret = 0; if(row1 != row2 && col1 != col2) return -1; if(row1 == row2 && col1 == col2) return -1; if(row1 == row2) { int min = col1 < col2 ? col1 : col2; int max = col1 < col2 ? col2 : col1; for(int col = min+1; col<max; ++col) { if(getStoneId(row1, col) != -1) ++ret; } } else { int min = row1 < row2 ? row1 : row2; int max = row1 < row2 ? row2 : row1; for(int row = min+1; row<max; ++row) { if(getStoneId(row, col1) != -1) ++ret; } } return ret; } int Board::relation(int row1, int col1, int row, int col) { return qAbs(row1-row)*10+qAbs(col1-col); } bool Board::canMoveChe(int moveid, int, int row, int col) { GetRowCol(row1, col1, moveid); int ret = getStoneCountAtLine(row1, col1, row, col); if(ret == 0) return true; return false; } bool Board::canMoveMa(int moveid, int, int row, int col) { GetRowCol(row1, col1, moveid); int r = relation(row1, col1, row, col); if(r != 12 && r != 21) return false; if(r == 12) { if(getStoneId(row1, (col+col1)/2) != -1) return false; } else { if(getStoneId((row+row1)/2, col1) != -1) return false; } return true; } bool Board::canMovePao(int moveid, int killid, int row, int col) { GetRowCol(row1, col1, moveid); int ret = getStoneCountAtLine(row, col, row1, col1); if(killid != -1) { if(ret == 1) return true; } else { if(ret == 0) return true; } return false; } bool Board::canMoveBing(int moveid, int, int row, int col) { GetRowCol(row1, col1, moveid); int r = relation(row1, col1, row, col); if(r != 1 && r != 10) return false; if(isBottom