C++ Qt5贪吃蛇源码

/////////////////////////////////////////////////////////////// /** * @file gamewindow.cpp * * @brief 主窗口 * * @author MollyNeko * * @date 2018-08-01 * **/ /////////////////////////////////////////////////////////////// #include <QPainter> #include <QMessageBox> #include <QTime> #include "gamewindow.h" #define MAP_COLOR Qt::GlobalColor bool isLock(); void lock(); void unlock(); /* 构造类函数 */ GameWindow::GameWindow(QWidget *parent): m_iMapSize(20), QWidget(parent) { m_timer = new QTimer(this); SetMapSize(m_iMapSize); StartGame(300); } /* 控制函数 */ /////////////////////////////////////////////////////////////// /** * @brief 设置地图尺寸 * * @param size 要设置的尺寸 **/ /////////////////////////////////////////////////////////////// void GameWindow::SetMapSize(qint32 size) { m_iMapSize = size; setFixedSize(30*m_iMapSize, 30*m_iMapSize); // 分配空间 m_tMap = new t_MapStatus*[m_iMapSize]; for(qint32 row = 0; row < m_iMapSize; row++) { m_tMap[row] = new t_MapStatus[m_iMapSize]; } // 初始化值 for(qint32 row = 0; row < m_iMapSize; row++) { for(qint32 col = 0; col < m_iMapSize; col++) { m_tMap[row][col] = t_MapStatus::STATUS_FIELD; } } } /////////////////////////////////////////////////////////////// /** * @brief 把长条猫和食物放到地图上 **/ /////////////////////////////////////////////////////////////// void GameWindow::PlaceScene() { t_CatNode tCatHead = m_LongCat.GetCatHead(); SetMapNode(tCatHead, t_MapStatus::STATUS_HEAD); for(int itor = 0; itor < m_LongCat.GetCatLength() - 1; itor++) { t_CatNode tCatBody = m_LongCat.GetCatBody(itor); SetMapNode(tCatBody, t_MapStatus::STATUS_BODY); } SetMapNode(m_CurFood, t_MapStatus::STATUS_FOOD); } void GameWindow::OverGame() { m_timer->stop(); } void GameWindow::BloomFood() { qint32 posX, posY; qsrand((QTime(0, 0, 0).secsTo(QTime::currentTime()))); posX = qrand() % m_iMapSize; posY = qrand() % m_iMapSize; t_CatNode tCatNode(posX, posY); m_CurFood = tCatNode; if(m_LongCat.isContains(tCatNode)) { BloomFood(); } } /* 事件函数 */ void GameWindow::paintEvent(QPaintEvent *event) { Q_UNUSED(event); // 开始绘制 QPainter painter(this); painter.setPen(MAP_COLOR::black); for(qint32 row = 0; row < m_iMapSize; row++) { for(qint32 col = 0; col < m_iMapSize; col++) { SwitchColor(painter, m_tMap[row][col]); painter.drawRect(30*row, 30*col, 30, 30); } } } void GameWindow::keyPressEvent(QKeyEvent *event) { switch(event->key()) { case Qt::Key_Up: { m_LongCat.SetDirect(t_CatDirect::DIRECT_UP); break; } case Qt::Key_Down: { m_LongCat.SetDirect(t_CatDirect::DIRECT_DOWN); break; } case Qt::Key_Left: { m_LongCat.SetDirect(t_CatDirect::DIRECT_LEFT); break; } case Qt::Key_Right: { m_LongCat.SetDirect(t_CatDirect::DIRECT_RIGHT); break; } default: { break; } } OnTimeOut(); } /* 私用函数 */ /////////////////////////////////////////////////////////////// /** * @brief 建立信号和槽 **/ /////////////////////////////////////////////////////////////// void GameWindow::SetConnections() { connect(m_timer, SIGNAL(timeout()), this, SLOT(OnTimeOut())); } void GameWindow::SetMapNode(t_CatNode node, t_MapStatus status) { qint32 posX = node.posX, posY = node.posY; m_tMap[posX][posY] = status; } /* 分流函数 */ /////////////////////////////////////////////////////////////// /** * @brief 根据地图该点状态为画笔设置Brush属性 * * @param painter 引用的画笔对象 * * @param status 当前点状态 **/ /////////////////////////////////////////////////////////////// void GameWindow::SwitchColor(QPainter &painter, t_MapStatus status) { switch (status) { case t_MapStatus::STATUS_FIELD: { painter.setBrush(MAP_COLOR::gray); break; } case t_MapStatus::STATUS_FOOD: { painter.setBrush(MAP_COLOR::darkYellow); break; } case t_MapStatus::STATUS_BODY: { painter.setBrush(MAP_COLOR::green); break; } case t_MapStatus::STATUS_HEAD: { painter.setBrush(MAP_COLOR::red); break; } default: { painter.setBrush(MAP_COLOR::gray); break; } } } /* 槽函数 */ void GameWindow::OnTimeOut() { if(isLock()) { return; } lock(); // 清理尾部 t_CatNode tCatTail = m_LongCat.GetCatTail(); SetMapNode(tCatTail, t_MapStatus::STATUS_FIELD); // 逻辑判断及刷新 m_LongCat.TimeOut(); bool isDead = m_LongCat.isOutLimit() || m_LongCat.isEatSelf(); if(isDead) { OverGame(); QMessageBox::critical(this, "You are loser", "Game Over!"); return; } // 判断长条猫是否吃到食物 if(m_LongCat.GetCatHead() == m_CurFood) { m_LongCat.AddHead(m_CurFood); SetMapNode(m_CurFood, t_MapStatus::STATUS_HEAD); BloomFood(); } // 更新图像 PlaceScene(); update(); unlock(); } void GameWindow::StartGame(const qint32 speed) { BloomFood(); PlaceScene(); SetConnections(); m_timer->start(speed); } void GameWindow::StartAi() { }