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mainwindow.cpp
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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMessageBox>
#include "clientgameconfig.h"
#include "promotiondialog.h"
#include <QTimer>
#include <iostream>
#include <QFile>
#include <QFileDialog>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
setWindowTitle(tr("Chess Game"));
setWindowFlags(windowFlags()&~Qt::WindowMaximizeButtonHint);
ui->lcdNumber->setDisabled(true);
config = nullptr;
connected = false;
activeness = false;
statusUpdate();
side = 0;
limitEnable = 0;
timeLimit = -1;
timer = new QTimer;
connect(timer, SIGNAL(timeout()), this, SLOT(updateTime()));
connectionAction = new QAction("Connection Option", this);
connectionAction->setShortcuts(QKeySequence::Copy);
connect(connectionAction, &QAction::triggered, this, &MainWindow::connection);
openAction = new QAction("Load game", this);
openAction->setShortcuts(QKeySequence::Open);
connect(openAction, &QAction::triggered, this, &MainWindow::openGame);
saveAction = new QAction("Save game", this);
saveAction->setShortcuts(QKeySequence::Save);
connect(saveAction, &QAction::triggered, this, &MainWindow::saveGame);
newAction = new QAction("New Game", this);
newAction->setShortcuts(QKeySequence::New);
connect(newAction, &QAction::triggered, this, &MainWindow::newGame);
giveUpAction = new QAction("Admit defeat", this);
connect(giveUpAction, &QAction::triggered, this, &MainWindow::giveUp);
drawAction = new QAction("Ask for draw", this);
connect(drawAction, &QAction::triggered, this, &MainWindow::askDraw);
connect(ui->defeatButton, SIGNAL(clicked()), this, SLOT(giveUp()));
connect(ui->drawButton, SIGNAL(clicked()), this, SLOT(askDraw()));
QMenu *fileMenu = menuBar()->addMenu(tr("File"));
fileMenu->addAction(connectionAction);
fileMenu->addAction(newAction);
fileMenu->addAction(openAction);
fileMenu->addAction(saveAction);
QMenu *opMenu = menuBar()->addMenu(tr("Operation"));
opMenu->addAction(giveUpAction);
opMenu->addAction(drawAction);
m_scene = new QGraphicsScene;
ui->graphicsView->setScene(m_scene);
ui->graphicsView->setRenderHint(QPainter::Antialiasing);
QColor bgd;
bgd.setRgb(236,236,236);
m_scene->setBackgroundBrush(QBrush(bgd));
QColor dark, light;
dark.setRgb(184,146,114);
light.setRgb(247,228,195);
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
QColor color = ((i+j)%2==0) ? light : dark;
chess[i][j] = new MyGraphicsItem(i, j, color);
chess[i][j]->setPos(j*60, (7-i)*60);
m_scene->addItem(chess[i][j]);
}
}
QGraphicsRectItem *item = new QGraphicsRectItem(-30,-30,480,480);
QPen pen(Qt::black, 5);
item->setPen(pen);
m_scene->addItem(item);
update();
}
QString MainWindow::side2String(bool in) {
if(in == 1)
return "white";
else
return "black";
}
void MainWindow::initBoard() {
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
if(side == 0)
chess[i][j]->setPos((7-j)*60, i*60);
else
chess[i][j]->setPos(j*60, (7-i)*60);
}
}
update();
}
void MainWindow::initChess() {
chess[0][0]->setChess("white", "rook");
chess[0][1]->setChess("white", "knight");
chess[0][2]->setChess("white", "bishop");
chess[0][3]->setChess("white", "queen");
chess[0][4]->setChess("white", "king");
chess[0][5]->setChess("white", "bishop");
chess[0][6]->setChess("white", "knight");
chess[0][7]->setChess("white", "rook");
for(int i = 0; i < 8; i ++)
chess[1][i]->setChess("white","pawn");
chess[7][0]->setChess("black", "rook");
chess[7][1]->setChess("black", "knight");
chess[7][2]->setChess("black", "bishop");
chess[7][3]->setChess("black", "queen");
chess[7][4]->setChess("black", "king");
chess[7][5]->setChess("black", "bishop");
chess[7][6]->setChess("black", "knight");
chess[7][7]->setChess("black", "rook");
for(int i = 0; i < 8; i ++)
chess[6][i]->setChess("black","pawn");
update();
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::statusUpdate() {
if(connected) {
if(mode == 0) {
ui->statusLabel->setText("Connected as server. Address: " + ipAdd + ":" + QString::number(port));
}
else {
ui->statusLabel->setText("Connected as client. Server address: " + ipAdd + ":" + QString::number(port));
}
}
else {
ui->statusLabel->setText("Disconnected");
}
repaint();
}
void MainWindow::connection() {
if(connected)
disconnect1();
statusUpdate();
connectConfigure = new connectDialog(this);
connectConfigure->setModal(false);
connect(connectConfigure, SIGNAL(ipAddress(QString)), this, SLOT(startConnection(QString)));
connect(connectConfigure, SIGNAL(abort()), this, SLOT(abort()));
connectConfigure->show();
}
void MainWindow::startConnection(QString ipAddress) {
int ip1, ip2, ip3, ip4;
sscanf(ipAddress.toLatin1().data(), "%d %d.%d.%d.%d:%d", &mode, &ip1, &ip2, &ip3, &ip4, &port);
ipAdd = QString::number(ip1) + "." + QString::number(ip2) + "." + QString::number(ip3) + "." + QString::number(ip4);
if(mode == 0) { // server
//qDebug() << ipAdd << port;
ui->statusLabel->setText("Connecting as server... (Address: " + ipAdd + ":" + QString::number(port) + ")");
if(listenSocket == nullptr)
this->listenSocket = new QTcpServer;
//qDebug() << listenSocket;
this->listenSocket->listen(QHostAddress::Any,port);
//qDebug() << "%%%";
connect(this->listenSocket,SIGNAL(newConnection()),this,SLOT(acceptConnection()));
}
else { //client
ui->statusLabel->setText("Connecting as client...");
this->readWriteSocket = new QTcpSocket;
this->readWriteSocket->connectToHost(QHostAddress(ipAdd),port);
connectTimer = new QTimer;
connectTimer->start(15000);
connectTimer->setSingleShot(true);
connect(connectTimer, SIGNAL(timeout()), this, SLOT(connectTimeout()));
connect(this->readWriteSocket,SIGNAL(readyRead()),this,SLOT(recvMessage()));
}
}
void MainWindow::connectTimeout() {
connectTimer->stop();
QMessageBox::critical(this, "timeout", "Connect Timeout!");
disconnect1();
}
void MainWindow::connectOK() {
if(connectTimer->isActive())
connectTimer->stop();
emit connectSuccess();
connected = true;
statusUpdate();
QMessageBox::information(this, "success", "Connection established.");
beatCnt = 0;
beatTimer = new QTimer(readWriteSocket);
beatTimer->start(1000);
connect(beatTimer, &QTimer::timeout, this, &MainWindow::keepAlive);
update();
}
void MainWindow::acceptConnection()
{
if(readWriteSocket != nullptr)
return;
this->readWriteSocket = this->listenSocket->nextPendingConnection();
emit connectSuccess();
connected = true;
statusUpdate();
//ui->turnLabel->setText("WAITING CONFIG");
//update();
config = new serverGameConfig;
config->setModal(false);
connect(config, SIGNAL(gameConfigResult(QString)), this, SLOT(gameConfig(QString)));
//connect(config, SIGNAL(gameConfigResult(QString)), this, SLOT(newGame_Passive()));
//config->show();
//newGame_Passive();
connect(this->readWriteSocket, SIGNAL(disconnected()), this, SLOT(disconnect1()));
connect(this->readWriteSocket,SIGNAL(readyRead()),this,SLOT(recvMessage()));
readWriteSocket->write("connectOK\n");
QMessageBox::information(this, "success", "Connection established.");
beatCnt = 0;
beatTimer = new QTimer(readWriteSocket);
beatTimer->start(1000);
connect(beatTimer, &QTimer::timeout, this, &MainWindow::keepAlive);
}
void MainWindow::keepAlive() {
beatCnt ++;
qDebug() << "Beat" << beatCnt;
if (beatCnt == 1)
readWriteSocket->write("Heartbeat\n");
else if (beatCnt > 10) {
QMessageBox::information(this, "Disconnect", "Connection failed!");
//readWriteSocket->disconnectFromHost();
disconnect1();
}
}
void MainWindow::gameConfig(QString result) {
int in_side, in_enable, in_time, in_flag;
sscanf(result.toLatin1().data(), "%d-%d-%d-%d", &in_side, &in_enable, &in_time, &in_flag);
side = (in_side) ? true : false;
bool flag = (in_flag) ? true : false;
//qDebug() << "flag" << flag;
limitEnable = (in_enable) ? true : false;
if(limitEnable)
timeLimit = in_time;
ui->turnLabel->setText("WAITING CONFIRM");
QString oppoSide = (side) ? "0" : "1";
QString oppoLimit = (limitEnable) ? "1" : "0";
QString oppoTime = QString::number(timeLimit);
QString block;
if(!flag)
block = "Config-" + oppoSide + "-" + oppoLimit + "-" + oppoTime + "\n";
else {
//QMessageBox::information(this, "a", "A");
block = "ConLoad-" + oppoSide + "-" + oppoLimit + "-" + oppoTime + "\n";
}
readWriteSocket->write(block.toLatin1().data());
}
void MainWindow::acceptStart() {
readWriteSocket->write("Game start");
newGame_Passive();
}
void MainWindow::recvMessage()
{
qDebug() << "read";
QString info1;
//QDataStream stream(readWriteSocket);
//stream >> info;
info1 += this->readWriteSocket->readAll();
QStringList inList = info1.split("\n", QString::SkipEmptyParts);
//qDebug() << info;
QString info;
for(int i = 0; i < inList.size(); i ++) {
info = inList.at(i);
qDebug() << info;
if(info == "Heartbeat") {
beatCnt = 0;
continue;
}
else if(info == "Stop check") {
beatTimer->stop();
}
else if(info == "Start check") {
beatTimer->start(1000);
}
else if(info == "connectOK") {
connectOK();
}
else if(info == "Admit defeat") {
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "information", "Opponent admits defeat. You win!");
readWriteSocket->write("Start check\n");
beatTimer->start();
readWriteSocket->write("Defeat information get\n");
//stream << "Defeat information get";
endGame();
}
else if(info == "Defeat information get") {
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "information", "You Lose!");
readWriteSocket->write("Start check\n");
beatTimer->start();
endGame();
}
else if(info == "Ask draw") {
timer->stop();
ui->turnLabel->setText("WAITING DECISION ...");
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::StandardButton reply = QMessageBox::question(this, "Ask for draw", "Opponent asks for a draw. Do you agree?");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
if(reply == QMessageBox::No) {
readWriteSocket->write("Refuse draw\n");
if(limitEnable)
timer->start(1000);
turnUpdate();
}
else {
readWriteSocket->write("Accept draw\n");
QMessageBox::information(this, "Draw", "Draw!");
endGame();
}
}
else if(info == "Refuse draw") {
if(limitEnable)
timer->start(1000);
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "Reply", "Opponent refuses a draw!");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
turnUpdate();
}
else if(info == "Accept draw") {
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "Reply", "Opponent accepts a draw!");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
endGame();
}
else if(info == "New game") {
ui->turnLabel->setText("NEW GAME!");
update();
}
else if(info == "Ask new game") {
//QMessageBox::information(this, "New game", "Client asks for a new game");
newGame();
}
else if(info.left(6) == "Config") {
readWriteSocket->write("Start check\n");
beatTimer->start(2000);
int in_side, in_enable, in_time;
sscanf(info.toLatin1().data(), "Config-%d-%d-%d", &in_side, &in_enable, &in_time);
side = (in_side) ? true : false;
limitEnable = (in_enable) ? true : false;
if(limitEnable)
timeLimit = in_time;
//QString sideString = (side)?"white":"black";
clientGameConfig *dialog = new clientGameConfig;
dialog->setSide(side);
dialog->setTimeLimit(limitEnable, timeLimit);
dialog->show();
connect(dialog, SIGNAL(startGame()), this, SLOT(acceptStart()));
//readWriteSocket->write("Game start");
}
else if(info.left(7) == "ConLoad") {
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
int in_side, in_enable, in_time;
sscanf(info.toLatin1().data(), "ConLoad-%d-%d-%d", &in_side, &in_enable, &in_time);
side = (in_side) ? true : false;
limitEnable = (in_enable) ? true : false;
if(limitEnable)
timeLimit = in_time;
//QString sideString = (side)?"white":"black";
clientGameConfig *dialog = new clientGameConfig;
dialog->setSide(side);
dialog->setTimeLimit(limitEnable, timeLimit);
dialog->show();
connect(dialog, SIGNAL(startGame()), this, SLOT(askLoad()));
}
else if(info == "Game start") {
newGame_Passive();
}
else if(info.left(5) == "Click") {
int row, col;
sscanf(info.toLatin1().data(), "Click %d-%d", &row, &col);
//clickChess(row, col);
getAccessible(row, col);
//paintAccessible();
prevRow = row;
prevCol = col;
}
else if(info.left(4) == "Move") {
int row, col;
sscanf(info.toLatin1().data(), "Move %d-%d", &row, &col);
if(row == prevRow && col == prevCol) {
chess[prevRow][prevCol]->setMargin(Qt::transparent);
cleanAccessible();
prevRow = prevCol = -1;
}
else {
moveChess(prevRow, prevCol, row, col);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
prevRow = prevCol = -1;
if(judge()) {
stalemate();
}
cleanAccessible();
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
}
else if(info == "Stalemate") {
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "Stalemate", "Stalemate!");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
endGame();
}
else if(info.left(9) == "Checkmate") {
int kingRow, kingCol;
sscanf(info.toLatin1().data(), "Checkmate %d-%d", &kingRow, &kingCol);
moveChess(prevRow, prevCol, kingRow, kingCol);
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "Checkmate", "You lose!");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
endGame();
}
else if(info.left(9) == "Promotion") {
int row, col, in;
sscanf(info.toLatin1().data(), "Promotion %d-%d-%d", &row, &col, &in);
QString target = "";
if(in == 1)
target = "queen";
else if(in == 2)
target = "rook";
else if(in == 3)
target = "knight";
else if(in == 4)
target = "bishop";
qDebug() << row << col << target;
moveChess(prevRow, prevCol, row, col);
chess[row][col]->setChess(chess[row][col]->getSide(), target);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
repaint();
prevRow = prevCol = -1;
if(judge()) {
stalemate();
}
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
else if(info.left(4) == "Long") {
if(info == "Long black") {
moveChess(7,4,7,2);
moveChess(7,0,7,3);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
prevRow = prevCol = -1;
judge();
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
else if(info == "Long white") {
moveChess(0,4,0,2);
moveChess(0,0,0,3);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
prevRow = prevCol = -1;
judge();
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
}
else if(info.left(5) == "Short") {
if(info == "Short black") {
moveChess(7,4,7,6);
moveChess(7,7,7,5);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
prevRow = prevCol = -1;
judge();
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
else if(info == "Short white") {
moveChess(0,4,0,6);
moveChess(0,7,0,5);
cleanAccessible();
chess[prevRow][prevCol]->setMargin(Qt::transparent);
prevRow = prevCol = -1;
judge();
curSide = !curSide;
turnUpdate();
if(limitEnable) {
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
}
}
else if(info == "Open") {
ui->turnLabel->setText("LOAD GAME");
endGame();
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
chess[i][j]->setChess();
}
}
repaint();
}
else if(info == "AskLoad") {
loadGame();
}
else if(info == "AskOpen") {
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::information(this, "open", "Client asks for loading a game");
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
openGame();
}
else if(info.startsWith("w") || info.startsWith("b")) {
if(info.startsWith("w"))
curSide = 1;
else
curSide = 0;
char *in = info.toLatin1().data();
int pos = 1;
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
if(in[pos] == 'g')
chess[i][j]->setChess("white", "king");
else if(in[pos] == 'q')
chess[i][j]->setChess("white", "queen");
else if(in[pos] == 'r')
chess[i][j]->setChess("white", "rook");
else if(in[pos] == 'k')
chess[i][j]->setChess("white", "knight");
else if(in[pos] == 'h')
chess[i][j]->setChess("white", "bishop");
else if(in[pos] == 'p')
chess[i][j]->setChess("white", "pawn");
else if(in[pos] == 'G')
chess[i][j]->setChess("black", "king");
else if(in[pos] == 'Q')
chess[i][j]->setChess("black", "queen");
else if(in[pos] == 'R')
chess[i][j]->setChess("black", "rook");
else if(in[pos] == 'K')
chess[i][j]->setChess("black", "knight");
else if(in[pos] == 'H')
chess[i][j]->setChess("black", "bishop");
else if(in[pos] == 'P')
chess[i][j]->setChess("black", "pawn");
pos ++;
}
}
loadStart();
}
else if(info == "Disconnect") {
connected = false;
disconnect1();
}
}
}
void MainWindow::abort() {
qDebug() << "!!!!!!!!!!!!!!!!!!";
if(mode == 0) {
endGame(true);
listenSocket->deleteLater();
listenSocket = nullptr;
connected = false;
statusUpdate();
}
else {
disconnect1();
}
}
void MainWindow::disconnect1() {
endGame();
//readWriteSocket->disconnectFromHost();
readWriteSocket->deleteLater();
readWriteSocket = nullptr;
connected = false;
statusUpdate();
}
void MainWindow::endGame(bool flag) {
qDebug() << "endgame";
if(!flag)
ui->turnLabel->setText("GAME ENDED");
if(timer->isActive()) {
timer->stop();
ui->lcdNumber->display(0);
ui->lcdNumber->setDisabled(true);
}
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
chess[i][j]->setActiveness(false);
disconnect(chess[i][j], SIGNAL(checkerClicked(int,int)), this, SLOT(checkerClicked(int,int)));
}
}
activeness = false;
}
void MainWindow::newGame() {
if(activeness)
return;
if(!connected) {
QMessageBox::critical(this, "No connection", "Please connect first!");
return;
}
ui->turnLabel->setText("WAITING CONFIG");
if(config == nullptr) { //client
readWriteSocket->write("Ask new game\n");
}
else {
config->show();
readWriteSocket->write("New game\n");
}
}
void MainWindow::newGame_Passive() {
ui->turnLabel->clear();
if(activeness)
return;
initBoard();
for(int i = 0; i < 8; i ++) {
for(int j = 0; j < 8; j ++) {
chess[i][j]->setActiveness(true);
chess[i][j]->setChess();
chess[i][j]->setMargin(Qt::transparent);
connect(chess[i][j], SIGNAL(checkerClicked(int,int)), this, SLOT(checkerClicked(int,int)));
}
}
activeness = true;
curSide = 1;
selected = 0;
prevRow = prevCol = -1;
castling = false;
turnUpdate();
initTimer();
initChess();
repaint();
}
void MainWindow::initTimer() {
if(limitEnable == false) {
//QMessageBox::information(this, "a", "a");
ui->lcdNumber->setDisabled(true);
timer->stop();
return;
}
ui->lcdNumber->setEnabled(true);
timeRemain = timeLimit;
updateTime();
timer->start(1000);
}
void MainWindow::updateTime() {
ui->lcdNumber->display(timeRemain);
if(timeRemain == 0) {
if(curSide == side)
QMessageBox::information(this, "Timeout", "Timeout! You lose!");
else
QMessageBox::information(this, "Timeout", "Opponent timeout! You win!");
timer->stop();
endGame();
}
timeRemain --;
}
void MainWindow::giveUp() {
if(!activeness || !connected)
return;
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::StandardButton reply = QMessageBox::question(this, "Admit defeat", "Are you sure you want to admit defeat?");
qDebug() << "giveup";
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
if(reply == QMessageBox::No) {
return;
}
readWriteSocket->write("Admit defeat\n");
//QTextStream stream(readWriteSocket);
//stream << "Admit defeat";
}
void MainWindow::askDraw() {
if(!activeness || !connected)
return;
readWriteSocket->write("Stop check\n");
beatTimer->stop();
QMessageBox::StandardButton reply = QMessageBox::question(this, "Ask draw", "Are you sure you want to ask for a draw?");
qDebug() << "askDraw";
readWriteSocket->write("Start check\n");
beatTimer->start(1000);
if(reply == QMessageBox::No) {
return;
}
timer->stop();
ui->turnLabel->setText("WATING REPLY ...");
readWriteSocket->write("Ask draw\n");
}
void MainWindow::turnUpdate() {
qDebug() << "current" << curSide << "side" << side;
if(curSide == side) {
ui->turnLabel->setText("YOUR TURN !");
}
else {
ui->turnLabel->setText("WAITING OPPONENT ...");
}
update();
}
void MainWindow::moveChess(int prevRow, int prevCol, int destRow, int destCol) {
chess[destRow][destCol]->setChess(chess[prevRow][prevCol]->getSide(), chess[prevRow][prevCol]->getType());
chess[prevRow][prevCol]->setChess();
}
void MainWindow::clickChess(int row, int col) {
chess[row][col]->setMargin(Qt::blue);
}
void MainWindow::getAccessible(int row, int col) {
MyGraphicsItem* cur = chess[row][col];
if(cur->getType() == "pawn") {
Point newPoint;
if(cur->getSide() == "white") {
if(row+1 < 8 && chess[row+1][col]->getSide() == "") {
newPoint.row = row + 1;
newPoint.col = col;
accessible.push_back(newPoint);
}
if(row+1 < 8 && col+1 < 8 && chess[row+1][col+1]->getSide() == "black"){
newPoint.row = row + 1;
newPoint.col = col + 1;
accessible.push_back(newPoint);
}
if(row+1 < 8 && col-1 >= 0 && chess[row+1][col-1]->getSide() == "black"){
newPoint.row = row + 1;
newPoint.col = col - 1;
accessible.push_back(newPoint);
}
if(row == 1 && chess[row+1][col]->getSide() == "" && chess[row+2][col]->getSide() == ""){
newPoint.row = row + 2;
newPoint.col = col;
accessible.push_back(newPoint);
}
}
else {
if(row-1 >= 0 && chess[row-1][col]->getSide() == "") {
newPoint.row = row - 1;
newPoint.col = col;
accessible.push_back(newPoint);
}
if(row-1 >= 0 && col+1 < 8 && chess[row-1][col+1]->getSide() == "white"){
newPoint.row = row - 1;
newPoint.col = col + 1;
accessible.push_back(newPoint);
}
if(row-1 >= 0 && col-1 >= 0 && chess[row-1][col-1]->getSide() == "white"){
newPoint.row = row - 1;
newPoint.col = col - 1;
accessible.push_back(newPoint);
}
if(row == 6 && chess[row-1][col]->getSide() == "" && chess[row-2][col]->getSide() == ""){
newPoint.row = row - 2;
newPoint.col = col;
accessible.push_back(newPoint);
}
}
}
else if(cur->getType() == "king") {
Point newPoint;
if(row+1 < 8 && col+1 < 8 && chess[row+1][col+1]->getSide() != cur->getSide()) {
newPoint.row = row+1;
newPoint.col = col+1;
accessible.push_back(newPoint);
}
if(row+1 < 8 && chess[row+1][col]->getSide() != cur->getSide()) {
newPoint.row = row+1;
newPoint.col = col;
accessible.push_back(newPoint);
}
if(row+1 < 8 && col-1 >= 0 && chess[row+1][col-1]->getSide() != cur->getSide()) {
newPoint.row = row+1;
newPoint.col = col-1;
accessible.push_back(newPoint);
}
if(col+1 < 8 && chess[row][col+1]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col+1;
accessible.push_back(newPoint);
}
if(col-1 >= 0 && chess[row][col-1]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col-1;
accessible.push_back(newPoint);
}
if(row-1 >= 0 && col+1 < 8 && chess[row-1][col+1]->getSide() != cur->getSide()) {
newPoint.row = row-1;
newPoint.col = col+1;
accessible.push_back(newPoint);
}
if(row-1 >= 0 && chess[row-1][col]->getSide() != cur->getSide()) {
newPoint.row = row-1;
newPoint.col = col;
accessible.push_back(newPoint);
}
if(row-1 >= 0 && col-1 >= 0 && chess[row-1][col-1]->getSide() != cur->getSide()) {
newPoint.row = row-1;
newPoint.col = col-1;
accessible.push_back(newPoint);
}
}
else if(cur->getType() == "rook") {
Point newPoint;
int delta = 1;
while(row-delta >= 0 && chess[row-delta][col]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col;
accessible.push_back(newPoint);
if(chess[row-delta][col]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row+delta < 8 && chess[row+delta][col]->getSide() != cur->getSide()) {
newPoint.row = row+delta;
newPoint.col = col;
accessible.push_back(newPoint);
if(chess[row+delta][col]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(col-delta >= 0 && chess[row][col-delta]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col-delta;
accessible.push_back(newPoint);
if(chess[row][col-delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(col+delta < 8 && chess[row][col+delta]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col+delta;
accessible.push_back(newPoint);
if(chess[row][col+delta]->getSide() != "")
break;
delta ++;
}
}
else if(cur->getType() == "bishop") {
Point newPoint;
int delta = 1;
while(row-delta >= 0 && col-delta >= 0 && chess[row-delta][col-delta]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col-delta;
accessible.push_back(newPoint);
if(chess[row-delta][col-delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row-delta >= 0 && col+delta < 8 && chess[row-delta][col+delta]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col+delta;
accessible.push_back(newPoint);
if(chess[row-delta][col+delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row+delta < 8 && col-delta >= 0 && chess[row+delta][col-delta]->getSide() != cur->getSide()) {
newPoint.row = row+delta;
newPoint.col = col-delta;
accessible.push_back(newPoint);
if(chess[row+delta][col-delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row+delta < 8 && col+delta < 8 && chess[row+delta][col+delta]->getSide() != cur->getSide()) {
newPoint.row = row+delta;
newPoint.col = col+delta;
accessible.push_back(newPoint);
if(chess[row+delta][col+delta]->getSide() != "")
break;
delta ++;
}
}
else if(cur->getType() == "queen") {
Point newPoint;
int delta = 1;
while(row-delta >= 0 && chess[row-delta][col]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col;
accessible.push_back(newPoint);
if(chess[row-delta][col]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row+delta < 8 && chess[row+delta][col]->getSide() != cur->getSide()) {
newPoint.row = row+delta;
newPoint.col = col;
accessible.push_back(newPoint);
if(chess[row+delta][col]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(col-delta >= 0 && chess[row][col-delta]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col-delta;
accessible.push_back(newPoint);
if(chess[row][col-delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(col+delta < 8 && chess[row][col+delta]->getSide() != cur->getSide()) {
newPoint.row = row;
newPoint.col = col+delta;
accessible.push_back(newPoint);
if(chess[row][col+delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row-delta >= 0 && col-delta >= 0 && chess[row-delta][col-delta]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col-delta;
accessible.push_back(newPoint);
if(chess[row-delta][col-delta]->getSide() != "")
break;
delta ++;
}
delta = 1;
while(row-delta >= 0 && col+delta < 8 && chess[row-delta][col+delta]->getSide() != cur->getSide()) {
newPoint.row = row-delta;
newPoint.col = col+delta;
accessible.push_back(newPoint);
if(chess[row-delta][col+delta]->getSide() != "")
break;
delta ++;