#include "myview.h"#include "box.h"#include <QIcon>#include <QPropertyAnimation>#include <QGraphicsBlurEffect>#include <QTimer>#include <QPushButton>#include <QGraphicsProxyWidget>#include <QApplication>#include <QLabel>#include <QFileInfo>static const qreal INITSSPEED = 500;//游戏的学习初始化速度static const QString SOUNDPATH = "https://www.cnblogs.com/tornadomeet/archive/2012/09/22/sounds/";MyView::MyView(QWidget *parent) : QGraphicsView(parent){ init_view();}void MyView::init_view() { setRenderHint(QPainter::Antialiasing);//使用抗锯齿的方式渲染 setCacheMode(CacheBackground);//设置缓存背景
，这样可以加快渲染速度 setWindowTitle(tr("Teris游戏")); setWindowIcon(QIcon(":/images/icon.png"));//设置标题处的简易图标 setMinimumSize(810, 510); //2者设置成一样说明视图尺寸不能再更改 setMaximumSize(810, 510); QGraphicsScene *scene = new QGraphicsScene;//新建场景指针 scene->setSceneRect(5, 5, 800, 500);//场景大小 scene->setBackgroundBrush(QPixmap(":/images/background.png")); setScene(scene);//设置场景 //俄罗斯方块可移动区域外界的4条线,与外界预留3个像素是为了方便进行碰撞检测 top_line = scene->addLine(197, 47, 403, 47); bottom_line = scene->addLine(197, 453, 403, 453); left_line = scene->addLine(197, 47, 197, 453); right_line = scene->addLine(403, 47, 403, 453); //添加当前方块组 box_group = new BoxGroup;//通过新建BoxGroup对象间接达到调用box的2个类 connect(box_group, SIGNAL(need_new_box()), this, SLOT(clear_full_rows())); connect(box_group, SIGNAL(game_finished()), this, SLOT(game_over())); scene->addItem(box_group); //添加提示方块组 next_box_group = new BoxGroup; scene->addItem(next_box_group); game_score = new QGraphicsTextItem(0, scene);//文本的父item为对应的场景 game_score->setFont(QFont("Times", 50, QFont::Bold));//为文本设置字体 game_score->setPos(450, 350);//分数在场景中出现的位置 game_level = new QGraphicsTextItem(0, scene); game_level->setFont(QFont("Times", 50, QFont::Bold)); game_level->setPos(20, 150); //开始游戏 // start_game(); //初始状态时不显示游戏区域
，不显示游戏分数和游戏等级 top_line->hide(); bottom_line->hide(); left_line->hide(); right_line->hide(); game_score->hide(); game_level->hide(); //添加黑色遮罩 QWidget *mask = new QWidget; mask->setAutoFillBackground(true); mask->setPalette(QPalette(QColor(0,俄罗 0, 0, 50)));//alpha为不透明度 mask->resize(900, 600); //addWidget()函数的返回值是QGraphicsProxyWidget ，如果不添加相应的斯方头文件 ，则此处会报错 mask_widget = scene->addWidget(mask); mask_widget->setPos(-50,学习 -50); mask_widget->setZValue(1);//该层薄纱放在原图的上面，这里有点类似于opengl中的简易3维绘图 //选项面板 QWidget *option = new QWidget; //将关闭按钮放在option上 QPushButton *option_close_button = new QPushButton(tr("关 闭"), option);//第2个参数为按钮所在的widget //设置按钮的字体颜色是白色 QPalette palette; palette.setColor(QPalette::ButtonText, Qt::black);//第一个参数调色版的role，这里指的俄罗是按钮字体颜色 option_close_button->setPalette(palette); //设置关闭按钮的位置 ，和单击后的斯方响应 option_close_button->move(120, 300); connect(option_close_button, SIGNAL(clicked()), option, SLOT(hide()));//单击后消失 option->setAutoFillBackground(true); option->setPalette(QPalette(QColor(0, 0, 0, 180))); option->resize(300, 400); QGraphicsWidget *option_widget = scene->addWidget(option); option_widget->setPos(250, 50); option_widget->setZValue(3); option_widget->hide(); //帮助面板 QWidget *help = new QWidget; QPushButton *help_close_button = new QPushButton(tr("帮 助"), help); help_close_button->setPalette(palette); help_close_button->move(120, 300); connect(help_close_button, SIGNAL(clicked()), help, SLOT(hide())); help->setAutoFillBackground(true); help->setPalette(QPalette(QColor(0, 0, 0, 180))); help->resize(300, 400); QGraphicsWidget *help_widget = scene->addWidget(help); help_widget->setPos(250, 50); help_widget->setZValue(3); help_widget->hide(); //游戏欢迎文本 game_welcome_text = new QGraphicsTextItem(0, scene);//第一个参数为文本内容
，第二个参数为父item game_welcome_text->setHtml(tr("<font color=green>Tetris游戏</font>")); game_welcome_text->setFont(QFont("Times",学习 40, QFont::Bold)); game_welcome_text->setPos(300, 100); game_welcome_text->setZValue(2);//放在第2层 //游戏暂停文本 game_pause_text = new QGraphicsTextItem(0, scene);//第一个参数为文本内容
，第二个参数为父item game_pause_text->setHtml(tr("<font color=green>游戏暂停中 ！简易</font>")); game_pause_text->setFont(QFont("Times",俄罗 40, QFont::Bold)); game_pause_text->setPos(300, 100); game_pause_text->setZValue(2);//放在第2层 game_pause_text->hide(); //游戏结束文本 game_over_text = new QGraphicsTextItem(0, scene);//第一个参数为文本内容，第二个参数为父item game_over_text->setHtml(tr("<font color=green>GAME OVER ！斯方</font>")); game_over_text->setFont(QFont("Times",学习 40, QFont::Bold)); game_over_text->setPos(300, 100); game_over_text->setZValue(2);//放在第2层 game_over_text->hide(); // 游戏中使用的按钮 QPushButton *button1 = new QPushButton(tr("开 始")); QPushButton *button2 = new QPushButton(tr("选 项")); QPushButton *button3 = new QPushButton(tr("帮 助")); QPushButton *button4 = new QPushButton(tr("退 出")); QPushButton *button5 = new QPushButton(tr("重新开始")); QPushButton *button6 = new QPushButton(tr("暂 停")); QPushButton *button7 = new QPushButton(tr("主 菜 单")); QPushButton *button8 = new QPushButton(tr("返回游戏")); QPushButton *button9 = new QPushButton(tr("结束游戏")); connect(button1, SIGNAL(clicked()), this, SLOT(start_game())); connect(button2, SIGNAL(clicked()), option, SLOT(show())); connect(button3, SIGNAL(clicked()), help, SLOT(show())); connect(button4, SIGNAL(clicked()), qApp, SLOT(quit()));//此处槽函数的接收对象为应用程序本身 connect(button5, SIGNAL(clicked()), this, SLOT(restart_game())); connect(button6, SIGNAL(clicked()), this, SLOT(pause_game())); connect(button7, SIGNAL(clicked()), this, SLOT(finish_game())); connect(button8, SIGNAL(clicked()), this, SLOT(return_game()));//返回主菜单 connect(button9, SIGNAL(clicked()), this, SLOT(finish_game())); start_button = scene->addWidget(button1);//restart_button并不是QPushbutton类型，而是简易QGraphicsItem类型,后面的类似 option_button = scene->addWidget(button2); help_button = scene->addWidget(button3); exit_button = scene->addWidget(button4); restart_button = scene->addWidget(button5); pause_button = scene->addWidget(button6); show_menu_button = scene->addWidget(button7); return_button = scene->addWidget(button8); finish_button = scene->addWidget(button9); //设置位置 start_button->setPos(370, 200); option_button->setPos(370, 250); help_button->setPos(370, 300); exit_button->setPos(370, 350); restart_button->setPos(600, 150); pause_button->setPos(600, 200); show_menu_button->setPos(600, 250); return_button->setPos(370, 200); finish_button->setPos(370, 250); //将这些按钮都放在z方向的第二层 start_button->setZValue(2); option_button->setZValue(2); help_button->setZValue(2); exit_button->setZValue(2); restart_button->setZValue(2); return_button->setZValue(2); finish_button->setZValue(2); //一部分按钮隐藏起来 restart_button->hide(); finish_button->hide(); pause_button->hide(); show_menu_button->hide(); return_button->hide(); //设置声音 background_music = new Phonon::MediaObject(this);//背景音乐对象 clearrow_sound = new Phonon::MediaObject(this);//消行声音对象 //AudioOutput是一个将数据送到音频输出的设备 Phonon::AudioOutput *audio1 = new Phonon::AudioOutput(Phonon::MusicCategory, this); Phonon::AudioOutput *audio2 = new Phonon::AudioOutput(Phonon::MusicCategory, this); Phonon::createPath(background_music, audio1);// Phonon::createPath(clearrow_sound, audio2);//绑定音源和音频输出控件 Phonon::VolumeSlider *volume1 = new Phonon::VolumeSlider(audio1, option);//参数1为音频输出设备 ，参数2为对应的俄罗父widget Phonon::VolumeSlider *volume2 = new Phonon::VolumeSlider(audio2, option); QLabel *volume_label1 = new QLabel(tr("音乐声 ："), option); QLabel *volume_label2 = new QLabel(tr("音效声 ："), option); volume1->move(100, 100); volume2->move(100, 200); volume_label1->move(65, 105); volume_label2->move(60, 205); //音乐播放完后发射信号触发about_to_finish()槽函数 connect(background_music, SIGNAL(aboutToFinish()), this, SLOT(about_to_finish())); // 因为播放完毕后会进入暂停状态 ，再调用play()将无法进行播放 ，需要在播放完毕后使其进入停止状态 connect(clearrow_sound, SIGNAL(finished()), clearrow_sound, SLOT(stop())); background_music->setCurrentSource(Phonon::MediaSource(SOUNDPATH + "background.mp3")); clearrow_sound->setCurrentSource(Phonon::MediaSource(SOUNDPATH + "clearrow.mp3")); background_music->play();//初始化的时候直接播放背景音乐}//开始游戏void MyView::start_game() { game_welcome_text->hide(); start_button->hide(); option_button->hide(); help_button->hide(); exit_button->hide(); mask_widget->hide(); init_game();}//初始化游戏 ，为什么要分2个函数来写
？void MyView::init_game() { box_group->create_box(QPointF(300, 70)); //创建方块组,在中间位置处出现 box_group->setFocus();//设置人机交互焦点 ，这样就可以使用键盘来控制它 box_group->startTimer(INITSSPEED);//启动定时器 game_speed = INITSSPEED;//游戏速度，暂停时需要用到 next_box_group->create_box(QPoint(500, 70));//创建提示方块组 scene()->setBackgroundBrush(QPixmap(":/images/background01.png")); game_score->setHtml(tr("<font color = red >0</font>")); game_level->setHtml(tr("<font color = white>第<br>一<br>幕</font>"));//br为换行 restart_button->show(); pause_button->show(); show_menu_button->show(); game_score->show(); game_level->show(); top_line->show(); bottom_line->show(); left_line->show(); right_line->show(); // 可能以前返回主菜单时隐藏了boxGroup box_group->show(); //设置游戏开始的背景音乐 background_music->setCurrentSource(Phonon::MediaSource(SOUNDPATH + "background01.mp3")); background_music->play();}void MyView::clear_full_rows() { for(int y = 429; y > 50; y -= 20) { //每隔20行取一个item出来
，括号里面的参数不能弄错
，否则没有方块消失的效果 QList<QGraphicsItem *> list = scene()->items(199, y, 202, 22, Qt::ContainsItemShape);//返回指定区域内所有可见的item if(list.count() == 10) { //如果一行已满，则销毁该行的所有小方块 foreach(QGraphicsItem *item, list) { OneBox *box = (OneBox *) item; // box->deleteLater(); /*采用动态效果消失方块行*/ QGraphicsBlurEffect *blur_effect = new QGraphicsBlurEffect;//创建模糊效果对象 box->setGraphicsEffect(blur_effect);//给每个小方块添加模糊设置 QPropertyAnimation *animation = new QPropertyAnimation(box, "scale");//添加动态效果 ，尺寸变换效果 animation->setEasingCurve(QEasingCurve::OutBounce);//为动态效果设置缓冲取曲线 ，是用来插值的 animation->setDuration(250);//持续250毫秒 animation->setStartValue(4);//其实尺寸 animation->setEndValue(0.25);//结束尺寸 animation->start(QAbstractAnimation::DeleteWhenStopped);//动画结束后删除该类 connect(animation, SIGNAL(finished()), box, SLOT(deleteLater()));//动画结束完后才调用小方块销毁函数 // clearrow_sound->play(); } rows << y;//将满行的行号保存到rows中 } } //如果满行 ，则下移上面的方块 if(rows.count()>0) { clearrow_sound->play(); QTimer::singleShot(400, this, SLOT(move_box()));//只执行一次定时器，等动态效果完后再下移上面的方块 // clearrow_sound->play(); } else { //没有满行
，则新出现提示方块
，且提示方块出更新新的提示方块 box_group->create_box(QPointF(300, 70), next_box_group->getCurrentShape()); next_box_group->clear_box_group(true); next_box_group->create_box(QPointF(500, 70));// }}void MyView::move_box() { for(int i = rows.count(); i > 0; --i) { int row = rows.at(i-1);//取出满行的行号,从最上面的位置开始 //取出从区域上边界到当前满行之间所形成的矩形区域 foreach(QGraphicsItem *item, scene()->items(199, 49, 202, row-47, Qt::ContainsItemShape)) { item->moveBy(0, 20); } } //更新分数 update_score(rows.count()); //出现新的方块组 rows.clear(); box_group->create_box(QPointF(300, 70), next_box_group->getCurrentShape()); next_box_group->clear_box_group(true); next_box_group->create_box(QPoint(500, 70));}void MyView::update_score(const int full_row_num) { long score = full_row_num*10000000;//每消一行的一千万分 ，比较霸气 int current_score = game_score->toPlainText().toInt(); current_score += score; game_score->setHtml(tr("<font color = red>%1</font>").arg(current_score)); if(current_score >= 100000000) { game_level->setHtml(tr("<font color = white>第<br>二<br>幕</font>")); scene()->setBackgroundBrush(QPixmap(":/images/background02.png")); game_speed = 300; box_group->stop_timer();//重新设置定时器参数 box_group->startTimer(game_speed); if (QFileInfo(background_music->currentSource().fileName()).baseName() != "background02") { background_music->setCurrentSource(Phonon::MediaSource(SOUNDPATH + "background02.mp3")); background_music->play(); } }}void MyView::game_over() { pause_button->hide(); show_menu_button->hide(); mask_widget->show(); game_over_text->show(); restart_button->setPos(370, 200); finish_button->show();}void MyView::restart_game(){ mask_widget->hide(); game_over_text->hide(); finish_button->hide(); restart_button->setPos(600, 150); //销毁当前方块组和当前方块中的所有小方块 next_box_group->clear_box_group(true); box_group->clear_box_group(); box_group->hide(); foreach(QGraphicsItem *item, scene()->items(199, 49, 202, 402,Qt::ContainsItemBoundingRect)) { scene()->removeItem(item); OneBox *box = (OneBox*)item; box->deleteLater(); } init_game();}void MyView::finish_game(){ game_over_text->hide(); finish_button->hide(); restart_button->setPos(600, 150); restart_button->hide(); pause_button->hide(); show_menu_button->hide(); game_score->hide(); game_level->hide(); top_line->hide(); bottom_line->hide(); left_line->hide(); right_line->hide(); next_box_group->clear_box_group(true); box_group->clear_box_group(); box_group->hide(); foreach(QGraphicsItem *item, scene()->items(199, 49, 202, 402,Qt::ContainsItemBoundingRect)) { scene()->removeItem(item); OneBox *box = (OneBox*)item; box->deleteLater(); } mask_widget->show(); game_welcome_text->show(); start_button->show(); option_button->show(); help_button->show(); exit_button->show(); scene()->setBackgroundBrush(QPixmap(":/images/background.png")); //游戏结束时更该背景音乐 background_music->setCurrentSource(Phonon::MediaSource(SOUNDPATH + "background.mp3")); background_music->play();}void MyView::pause_game(){ box_group->stop_timer();//中断游戏最主要的是停止方块下移的定时器工作 restart_button->hide(); pause_button->hide(); show_menu_button->hide(); mask_widget->show(); game_pause_text->show(); return_button->show();}void MyView::return_game(){ return_button->hide(); game_pause_text->hide(); mask_widget->hide(); restart_button->show(); pause_button->show(); show_menu_button->show(); box_group->startTimer(game_speed);}void MyView::about_to_finish(){ background_music->enqueue(background_music->currentSource());//设置后续的播放序列为当前的音频文件
，达到重复播放的目的}void MyView::keyPressEvent(QKeyEvent *event) { if(pause_button->isVisible())//当屏幕中可以看到暂停按钮时
，代表游戏还在运行 ，这时候的焦点给下降中的方块组 box_group->setFocus(); else box_group->clearFocus();//如果游戏暂停
，则方块组不能获得焦点 QGraphicsView::keyPressEvent(event);}