Qt/C++实现中国象棋基本版

#include "Board.h" #include <QPainter> #include <QMouseEvent> //#include <QDebug> Board::Board(QWidget *parent) : QWidget(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); //画棋盘 p.save(); drawPlate(p); p.restore(); //画九宫格 p.save(); drawPlace(p); p.restore(); //画炮兵起始位置 p.save(); drawInitPosition(p); p.restore(); //绘制32个棋子 p.save(); drawStone(p); p.restore(); } void Board::drawPlate(QPainter &p) { //画十条横线 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)); } //画十条竖线 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)); } } } void Board::drawPlace(QPainter &p) { //画九宫格 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::drawInitPosition(QPainter &p) { //画兵起始位 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); //画炮起始位 drawInitPosition(p, 2, 1); drawInitPosition(p, 2, 7); drawInitPosition(p, 7, 1); drawInitPosition(p, 7, 7); } 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); //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); } } void Board::drawStone(QPainter &p) { for(int i=0;i<32;i++) { drawStone(p,i); } } //判断棋子是否存活 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)); //选中为灰色 if(id==_selectid) { p.setBrush(QBrush(Qt::gray)); } else { p.setBrush(QBrush(Qt::yellow)); } p.drawEllipse(cell(id)); p.setFont(QFont("system",_r*0.9,700)); 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; } bool Board::sameColor(int id1, int id2) { if(id1 == -1 || id2 == -1) { return false; } return red(id1)==red(id2); } int Board::getStoneId(int row, int col) { for(int i=0; i<32;i++) { if(_s[i]._row == row && _s[i]._col == col && !isDead(i)) { return i; } } return -1; } void Board::killStone(int id) { if(id == -1) { return; } _s[id]._dead = true; } void Board::reliveStone(int id) { if(id == -1) { return; } _s[id]._dead = false; } void Board::moveStone(int moveid, int row, int col) { _s[moveid]._row = row; _s[moveid]._col = col; _bRedTurn = !_bRedTurn; } QPoint Board::center(int row, int col) { QPoint pt(_r*2*col, _r*2*row); 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)); } //效率不高，需要改进 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; } int Board::relation(int row1, int col1, int row, int col) { return qAbs(row1-row)*10+qAbs(col1-col); } //JIANG bool Board::canMoveJiang(int moveid,int row,int col, int) { /* * 1.首先目标位置在九宫格内 * 2.移动的步长是一个格子 */ if(_s[moveid]._red) { if(row>2)return false; } else { if(row<7)return false; } if(col<3)return false; if(col>5)return false; int dr=_s[moveid]._row-row; int dc=_s[moveid]._col-col; int d=abs(dr)*10+abs(dc); if(d==1 || d==10) { return true; } return false; } //SHI bool Board::canMove2(int moveid,int row,int col, int killid) { if(_s[moveid]._red) { if(row>2)return false; } else { if(row<7)return false; } if(col<3)return false; if(col>5)return false; int dr=_s[moveid]._row-row; int dc=_s[moveid]._col-col; int d=abs(dr)*10+abs(dc); if(d==11) { return true; } return false; } //XIANG bool Board::canMove3(int moveid,int row,int col, int killid) { return true; } //CHE bool Board::canMove4(int moveid,int row,int col, int killid) { return true; } //MA bool Board::canMove5(int moveid,int row,int col, int killid) { return true; } //PAO bool Board::canMove6(int moveid,int row,int col, int killid) { return true; } //BING bool Board::canMove7(int moveid,int ro