Qt5实现简易飞机大战

#include "widget.h" #include "ui_widget.h" #include <QPainter> #include <QPixmap> #include <QDebug> #include <QKeyEvent> #include <QTimerEvent> #include <QTime> #include <QMovie> #include "enemyfish.h" Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); this->setFixedSize( this->width (),this->height ()); //设置固定大小 setWindowTitle("PlaneWars"); myPlane = NULL; //初始状态1 state = BEGIN_STATE; Init(); } Widget::~Widget() { delete ui; } //接收到我方战机受到攻击信号 void Widget::MyPlaneIsAttacked() { int life = myPlane->GetLife()-5; //降低5点生命力 myPlane->SetLife(life); if(life <= 0) //玩家Over,进入状态3 { state = END_STATE; //结束状态 Init(); } } //清空杂鱼和爆炸的内存空间 void Widget::DelFishAndExp() { QLinkedList<EnemyFish*>::iterator iter; QLinkedList<Explosion*>::iterator iter1; //清空敌方杂鱼列表 for(iter = fish_list.begin();iter!=fish_list.end();++iter) { EnemyFish *temp = *iter; fish_list.removeOne(*iter); delete temp; } //清空爆炸列表 for(iter1 = exp_list.begin();iter1!=exp_list.end();++iter1) { Explosion *temp1 = *iter1; exp_list.removeOne(*iter1); delete temp1; } } //进入每个状态时的初始化 void Widget::Init() { if(state == RUNNING_STATE) { if(myPlane != NULL) //删除上一局剩下的飞机 { delete myPlane; //删除我方飞机，同时会删除我方的子弹 DelFishAndExp(); //清空剩下的杂鱼和爆炸 } myPlane = new MyPlane; //动态创造我方飞机 //设置显示字体颜色 QPalette pa; pa.setColor(QPalette::WindowText,Qt::red); ui->label->setPalette(pa); ui->label_2->setPalette(pa); ui->label_life->setPalette(pa); ui->label_sco->setPalette(pa); back.load(":/img/newback.bmp"); back.scaled(QSize(this->width(),this->height())); //缩放背景图片,以适应屏幕 back_spe = 0; //背景的移动的初始位置为0 ui->label_sco->setText(QString::number(myPlane->GetScore())); ui->label_life->setText(QString::number(myPlane->GetLife())); timer1 = startTimer(30); //用于响应飞机移动 timer2 = startTimer(20); //用于响应攻击 timer3 = startTimer(1000); //用于增加敌机 timer4 = startTimer(100); //用于绘制爆炸 max_fish_num = 20; //最大的敌方虾米数量 } else if(state == BEGIN_STATE) { back.load(":/img/ready.bmp"); back = back.scaled(QSize(this->width(),this->height())); //缩放图片 } else { back.load(":/img/gameover.bmp"); back = back.scaled(QSize(this->width(),this->height())); //缩放图片 } } //重绘事件： void Widget::paintEvent(QPaintEvent *event) { QPainter painter; painter.begin(this); if(state == RUNNING_STATE) { ui->label_life->setText(QString::number(myPlane->GetLife())); ui->label_sco->setText(QString::number(myPlane->GetScore())); //绘制动态背景 painter.drawPixmap(0,back_spe,back); painter.drawPixmap(0,back_spe-back.height(),back); //绘制我方飞机 painter.drawPixmap(myPlane->pos,myPlane->img); //绘制敌机 foreach(EnemyFish *temp_fish,fish_list) painter.drawPixmap(temp_fish->pos,temp_fish->img); //绘制我方子弹 foreach (MyBullet *temp_bul, myPlane->my_bulles) painter.drawPixmap(temp_bul->pos,temp_bul->img); //绘制爆炸 foreach(Explosion * temp_exp,exp_list) { if(temp_exp->GetCurPicNum()<=EXPLOSION_IMG_NUM) painter.drawPixmap(temp_exp->GetPos(),*(temp_exp->exp_img_list[temp_exp->GetCurPicNum()-1])); } } else { painter.drawPixmap(0,0,back); } painter.end(); } void Widget::keyPressEvent(QKeyEvent *event) //？？？两个按键同时按下问题 { if(state == RUNNING_STATE) //第二个阶段时 { int fly_dir = 0; //判断按下哪个按键，并打上标记 if(event->key() == Qt::Key_Up) fly_dir = FLY_UP; if(event->key() == Qt::Key_Down) fly_dir = FLY_DOWN; if(event->key() == Qt::Key_Left) fly_dir = FLY_LEFT; if(event->key() == Qt::Key_Right) fly_dir = FLY_RIGHT; myPlane->SetFlyDir(fly_dir,true); //给指定的方向打上标记 if(event->key() == Qt::Key_Space) { myPlane->FireBull(); //发射子弹 } } else { if(event->key() == Qt::Key_Return) { state = RUNNING_STATE; Init(); } } } //按键释放事件 void Widget::keyReleaseEvent(QKeyEvent *event) { if(state == RUNNING_STATE) { //判断释放哪个按键，并取消标记 int fly_dir = 0; if(event->key() == Qt::Key_Up) fly_dir = FLY_UP; if(event->key() == Qt::Key_Down) fly_dir = FLY_DOWN; if(event->key() == Qt::Key_Left) fly_dir = FLY_LEFT; if(event->key() == Qt::Key_Right) fly_dir = FLY_RIGHT; myPlane->SetFlyDir(fly_dir,false); //给指定的方取消上标记 } } //定时器事件：主要用于移动飞机；判断战机和敌机、敌机和子弹是否发生碰撞；增加敌机数量；显示爆炸 void Widget::timerEvent(QTimerEvent *event) { if(event->timerId() == timer1) //移动飞机和子弹 { //移动我方战机 for(int i = 1;i<=4;++i) { if(myPlane->GetFLyDir(i)) //上下左右：对应1 2 3 4 myPlane->Move(i); } //移动子弹 QLinkedList<MyBullet*>::iterator iter_bul; for(iter_bul = myPlane->my_bulles.begin();iter_bul!=myPlane->my_bulles.end();++iter_bul) { MyBullet *temp_bul = *iter_bul; temp_bul->Move(-1); } //移动敌方杂鱼机 QLinkedList<EnemyFish*>::iterator iter_fish; for(iter_fish = fish_list.begin();iter_fish != fish_list.end();++iter_fish) { EnemyFish * temp_fish = *iter_fish; temp_fish->Move(0); } this->update(); } else if(event->timerId() == timer2) //判断是否发生碰撞 { QLinkedList<EnemyFish*>::iterator iter; QLinkedList<MyBullet*>::iterator iter_bul; bool IsAttacked = false; bool IsCon = false; for(iter = fish_list.begin();iter!=fish_list.end();++iter) //遍历敌方所有杂鱼 { EnemyFish *temp_fish = *iter; IsAttacked = false; //初始未被攻击 QRect temp(temp_fish->pos,QSize(temp_fish->img.width(),temp_fish->img.height())); for(iter_bul = myPlane->my_bulles.begin();iter_bul !=myPlane->my_bulles.end();++iter_bul) //遍历我方所有子弹 { MyBullet *temp_bul = *iter_bul; QRect temp_rec(temp_bul->pos,QSize(temp_bul->img.width(),temp_bul->img.height())); IsAttacked = temp.intersects(temp_rec); //判断是否敌机是否受到我方子弹攻击 if(IsAttacked == true ) //子弹攻击到敌机 { EneFishI