Qt游戏编程——飞机大战—

承接上篇：

http://blog.csdn.net/hao_zong_yin/article/details/74540652

补充包：

#ifndef SUPPLY_H
#define SUPPLY_H#include "flyer.h"class Supply : public Flyer
{
public:Supply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent = 0):Flyer(w, h, speed, pixs, scene, parent) {}~Supply() {}QRectF boundingRect() const {return m_pixs.at(0).rect();}QPainterPath shape() const {QPainterPath path;path.addRect(boundingRect());return path;}void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {Q_UNUSED(option);Q_UNUSED(widget);painter->drawPixmap(0, 0, m_pixs.at(0));}void advance(int) {if (!checkPos(DOWN)) {posLost();return;}QPointF pos = scenePos();pos.ry() += m_speed;setPos(pos);}void posLost() {setVisible(false);deleteLater();}void doCollide() {}void fall() {setVisible(false);deleteLater();}
};#endif // SUPPLY_H

补充包——血包

#ifndef BLOODSUPPLY_H
#define BLOODSUPPLY_H#include "supply.h"class BloodSupply : public Supply
{
public:BloodSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent = 0);~BloodSupply();int name() const;
};#endif // BLOODSUPPLY_H

#include "bloodsupply.h"BloodSupply::BloodSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent):Supply(w, h, speed, pixs, scene, parent) {}BloodSupply::~BloodSupply() {}int BloodSupply::name() const
{return BLOODSUPPLYNAME;
}

补充包——炸弹包

#ifndef BOMBSUPPLY_H
#define BOMBSUPPLY_H#include "supply.h"class BombSupply : public Supply
{
public:BombSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent = 0);~BombSupply();int name() const;
};#endif // BOMBSUPPLY_H

#include "bombsupply.h"BombSupply::BombSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent):Supply(w, h, speed, pixs, scene, parent) {}BombSupply::~BombSupply() {}int BombSupply::name() const {return BOMBSUPPLYNAME;
}

补充包——子弹包

#ifndef BULLETSUPPLY_H
#define BULLETSUPPLY_H#include "supply.h"class BulletSupply : public Supply
{
public:BulletSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent = 0);~BulletSupply();int name() const;
};#endif // BULLETSUPPLY_H

#include "bulletsupply.h"BulletSupply::BulletSupply(qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent):Supply(w, h, speed, pixs, scene, parent) {}BulletSupply::~BulletSupply() {}int BulletSupply::name() const {return BULLETSUPPLYNAME;
}

炸弹：

#ifndef PLAYERBOMB_H
#define PLAYERBOMB_H#include "bullet.h"
#include "enemybullet.h"class Bomb : public Bullet
{
public:Bomb(qreal angel, qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent = 0);~Bomb();QPainterPath shape() const;QRectF boundingRect() const;void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);int name() const;void advance(int);void posLost();void doCollide();void fall();
};#endif // BOMB_H

#include "bomb.h"Bomb::Bomb(qreal angel, qreal w, qreal h, qreal speed, const QPixmaps &pixs, QGraphicsScene *scene, QGraphicsItem *parent):Bullet(angel, w, h, speed, pixs, scene, parent) {}Bomb::~Bomb() {}QRectF Bomb::boundingRect() const {return m_pixs.at(m_pixpos).rect();
}QPainterPath Bomb::shape() const
{QPainterPath path;path.addRect(boundingRect());return path;
}void Bomb::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{Q_UNUSED(option);Q_UNUSED(widget);painter->drawPixmap(0, 0, m_pixs.at(m_pixpos));
}int Bomb::name() const
{return BOMBNAME;
}void Bomb::advance(int)
{if (!checkPos(UP) || !checkPos(DOWN) || !checkPos(LEFT) || !checkPos(RIGHT)) {posLost();return;}m_step++;if (m_step == BOMBPIXSTEP) {m_step = 0;m_pixpos++;if (m_pixpos == 2) m_pixpos = 0;}QPointF pos = scenePos();pos.rx() -= xSpeed;pos.ry() -= ySpeed;setPos(pos);doCollide();
}void Bomb::posLost() {setVisible(false);deleteLater();
}void Bomb::doCollide()
{foreach (QGraphicsItem *t, collidingItems()) {if (t->type() != UnFlyer::TYPE) {Flyer *flyer = static_cast<Flyer*>(t);switch (flyer->name()) {case ENEMYBULLETNAME:flyer->fall();break;}}}
}void Bomb::fall() {setVisible(false);deleteLater();
}

随机数

#ifndef RANDOMIZER_H
#define RANDOMIZER_H#include <QObject>class Randomizer : public QObject
{Q_OBJECT
public:static int creat(int x);static int creat(int x, int y);
private:explicit Randomizer(QObject *parent = 0);
};#endif // RANDOMIZER_H

#include "randomizer.h"Randomizer::Randomizer(QObject *parent) : QObject(parent) {}int Randomizer::creat(int x)
{return qrand() % x;
}int Randomizer::creat(int x, int y)
{return qrand() % (y - x) + x;
}

菜单

#ifndef MENUWIDGET_H
#define MENUWIDGET_H#include <QDialog>
#include <QStackedWidget>
#include <QVBoxLayout>
#include <QPushButton>class MenuWidget : public QDialog
{Q_OBJECT
public:explicit MenuWidget(bool isRunning, QWidget *parent = 0);
signals:void sig_newGame();void sig_quit();
protected slots:void slt_quit();void slt_newGame();private:QPushButton *m_new;QPushButton *m_back;QPushButton *m_quit;bool states;void initUI();
};#endif // MENUWIDGET_H

#include "menuwidget.h"MenuWidget::MenuWidget(bool isRunning, QWidget *parent) : QDialog(parent), states(isRunning) {setWindowFlags(Qt::FramelessWindowHint);initUI();setMinimumSize(150,300);setMaximumSize(150,300);move(parent->rect().center() - QPoint(150/2,300/2));connect(m_new, SIGNAL(clicked()), this, SLOT(slt_newGame()));connect(m_quit, SIGNAL(clicked()), this ,SLOT(slt_quit()));connect(m_back, SIGNAL(clicked()), this, SLOT(close()));}void MenuWidget::initUI()
{m_new = new QPushButton("New Game");m_back = new QPushButton("Back");m_quit = new QPushButton("Quit");QVBoxLayout *mainLayout = new QVBoxLayout;mainLayout->addStretch();mainLayout->addWidget(m_new);mainLayout->addWidget(m_back);mainLayout->addWidget(m_quit);mainLayout->addStretch();setLayout(mainLayout);if (states) {m_new->setDisabled(true);} else {m_back->setDisabled(true);}
}void MenuWidget::slt_quit()
{emit sig_quit();close();
}void MenuWidget::slt_newGame()
{emit sig_newGame();close();
}

控制台（游戏逻辑，注释的代码崩了）

#ifndef SPACE_H
#define SPACE_H#include "planefactory.h"
#include "playerPlane.h"
#include "bloodsupply.h"
#include "bombsupply.h"
#include "bulletsupply.h"
#include "randomizer.h"
#include "menuwidget.h"class Space : public QGraphicsView
{Q_OBJECT
public:Space(QWidget *parent = 0);void init();void bloodsupply();void bombsupply();void bulletsupply();void enemys();
protected:void mouseDoubleClickEvent(QMouseEvent *event);
private://QGraphicsTextItem *scoretext, *bloodtext, *bombtext;QGraphicsScene *m_scene;QTimer *m_timer;PlayerPlane *m_player;uint m_scores, m_bloods, m_bombs, m_level, m_step;bool boss;//boss战标识bool isRunning;
signals:void sig_menu();
protected slots:void slt_newGame();void slt_playerDead();void slt_startGame();void slt_pauseGame();void slt_updata();void slt_addscore(int);void slt_menu();//void slt_updateScore(int);//void slt_updateBlood(int);//void slt_updateBomb(int);
};#endif // SPACE_H

#include "space.h"Space::Space(QWidget *parent) : QGraphicsView(parent), boss(false),  isRunning(false) {m_scene = new QGraphicsScene;m_scene->setSceneRect(0, 0, SCENEWIDTH, SCENEHEIGHT);setScene(m_scene);setWindowFlags(Qt::FramelessWindowHint);setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);setCacheMode(QGraphicsView::CacheBackground);setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);setOptimizationFlags(QGraphicsView::DontClipPainter | QGraphicsView::DontSavePainterState);setRenderHint(QPainter::Antialiasing);QPixmap pix(SCENEWIDTH, SCENEHEIGHT);pix.load(background);QPixmap temp = pix.scaled(SCENEWIDTH, SCENEHEIGHT, Qt::KeepAspectRatioByExpanding);setBackgroundBrush(temp);m_timer = new QTimer;connect(m_timer, SIGNAL(timeout()), this, SLOT(slt_updata()));connect(this, SIGNAL(sig_menu()), this, SLOT(slt_menu()));init();
}void Space::init() {
//    scoretext = new QGraphicsTextItem("0");
//    scoretext->setPos(0, 0);
//    m_scene->addItem(scoretext);//    bloodtext = new QGraphicsTextItem("0");
//    bloodtext->setPos(0, 10);
//    m_scene->addItem(bloodtext);//    bombtext = new QGraphicsTextItem("0");
//    bombtext->setPos(0, 20);
//    m_scene->addItem(bombtext);m_scores = 0, m_bloods = PLAYERPLANEBLOOD, m_bombs = 0, m_level = 1, m_step = 0;QPixmaps t;t.append(QPixmap(playerplane0));t.append(QPixmap(playerplane1));t.append(QPixmap(playerplane2));t.append(QPixmap(playerplane3));m_player = new PlayerPlane(PLAYERPLANEBLOOD, PLAYERPLANESIZE, PLAYERPLANESIZE, PLAYERPLANESPEED, t, m_scene);m_player->setFocus();connect(m_player, SIGNAL(sig_fall()), this, SLOT(slt_playerDead()));//connect(m_player, SIGNAL(sig_score(int)), this, SLOT(slt_updateScore(int)));//connect(m_player, SIGNAL(sig_blood(int)), this, SLOT(slt_updateBlood(int)));//connect(m_player, SIGNAL(sig_bomb(int)), this, SLOT(slt_updateBomb(int)));
}void Space::slt_newGame()
{m_scene->clear();init();m_timer->start(50);isRunning = true;
}void Space::slt_playerDead()
{m_timer->stop();isRunning = false;
}void Space::slt_startGame()
{if (isRunning) m_timer->start(50);
}void Space::slt_pauseGame()
{if (isRunning) m_timer->stop();
}void Space::slt_updata()
{m_scene->advance();m_step++;if (m_step % 50 == 0 && !boss) {enemys();}if (m_step % 233 == 0) {bulletsupply();}if (m_step % 666 == 0) {bombsupply();m_step = 0;}if (m_step % 2333 == 0) {bloodsupply();}
}void Space::slt_addscore(int score)
{m_scores += score;if (score == BOSSSCORE) {boss = false;m_level = 1;m_scores = 0;//slt_updateScore(m_scores);}if (m_scores != 0 && m_scores % 50 == 0) {m_level++;if (m_level == 7) m_level = 1;}
}void Space::bloodsupply()
{QPixmaps t;t.append(QPixmap(bloodsupplypix));BloodSupply *bloodsupply = new BloodSupply(BLOODSUPPLYSIZE, BLOODSUPPLYSIZE, BLOODSUPPLYSPEED, t, m_scene);qreal x = Randomizer::creat(SCENEWIDTH - BLOODSUPPLYSIZE);bloodsupply->setPos(x, 0);
}void Space::bombsupply()
{QPixmaps t;t.append(QPixmap(bombsupplypix));BloodSupply *bombsupply = new BloodSupply(BOMBSUPPLYSIZE, BOMBSUPPLYSIZE, BOMBSUPPLYSPEED, t, m_scene);qreal x = Randomizer::creat(SCENEWIDTH - BOMBSUPPLYSIZE);bombsupply->setPos(x, 0);
}void Space::bulletsupply()
{QPixmaps t;t.append(QPixmap(bulletsupplypix));uint x = Randomizer::creat(SCENEWIDTH - BULLETSUPPLYSIZE);BulletSupply *bulletsupply = new BulletSupply(BULLETSUPPLYSIZE, BULLETSUPPLYSIZE, BULLETSUPPLYSPEED, t, m_scene);bulletsupply->setPos(x,0);
}void Space::enemys()
{if (m_level == 6) {PlaneFactory::BossPlanes bossplanes = PlaneFactory::bcreator(1, scene());foreach (Boss *b, bossplanes) {int x = Randomizer::creat(SCENEWIDTH - BOSSSIZE);b->setPos(x, 0);connect(b, SIGNAL(sig_score(int)), this, SLOT(slt_addscore(int)));}boss = true;}else {PlaneFactory::FishPlanes fishplanes = PlaneFactory::fcreator(m_level, scene());foreach (Fish *f, fishplanes) {int z =  Randomizer::creat(6);if (z == 1) {int y = Randomizer::creat(SCENEHEIGHT / 2 - FISHSIZE);f->setPos(0, y);}else if (z == 2) {int y = Randomizer::creat(SCENEHEIGHT / 2 - FISHSIZE);f->setPos(SCENEWIDTH - FISHSIZE, y);}else {int x = Randomizer::creat(SCENEWIDTH - FISHSIZE);f->setPos(x, 0);}connect(f, SIGNAL(sig_score(int)), this, SLOT(slt_addscore(int)));}}
}void Space::slt_menu()
{if (isRunning) {slt_pauseGame();QScopedPointer<MenuWidget> w(new MenuWidget(true, this));connect(w.data(), SIGNAL(sig_newGame()), this, SLOT(slt_newGame()));connect(w.data(), SIGNAL(sig_quit()), this, SLOT(close()));w->setModal(true);w->show();w->exec();slt_startGame();}else {QScopedPointer<MenuWidget> w(new MenuWidget(false, this));connect(w.data(), SIGNAL(sig_newGame()), this, SLOT(slt_newGame()));connect(w.data(), SIGNAL(sig_quit()), this, SLOT(close()));w->setModal(true);w->show();w->exec();}
}void Space::mouseDoubleClickEvent(QMouseEvent *event) {event->accept();emit sig_menu();
}//void Space::slt_updateScore(int score) {
//    QString text = QString::number(score, 10);
//    scoretext->setPlainText(text);
//}//void Space::slt_updateBlood(int blood) {
//    QString text = QString::number(blood, 10);
//    bloodtext->setPlainText(text);
//}//void Space::slt_updateBomb(int bomb) {
//    QString text = QString::number(bomb, 10);
//    bombtext->setPlainText(text);
//}

其他物体（暂时没用，可以添加增加游戏性）

#ifndef UNFLYER_H
#define UNFLYER_H#include <QtWidgets>
#include "global.h"class UnFlyer : public QGraphicsObject {Q_OBJECT
public:UnFlyer(QGraphicsItem *parent = 0);~UnFlyer();enum {TYPE = UserType + 1};int type() const;
};#endif // UNFLYER_H

#include "unflyer.h"UnFlyer::UnFlyer(QGraphicsItem *parent) : QGraphicsObject(parent) {}UnFlyer::~UnFlyer() {}int UnFlyer::type() const {return UserType + 1;
}

一切以下载的源码为主（20多个类，天知道我有没有粘错。。。），欢迎大家补充、改进

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