c++游戏编程设计基于qt开发的一个简单雷霆战机小游戏源码.zip

#include "widget.h" #include "ui_widget.h" #include<vector> #include<QLabel> std::vector<bullet> Bullet; player *plane; std::vector<enemy> Enemy; Widget::Widget(QWidget *parent) : QWidget(parent) , ui(new Ui::Widget) { ui->setupUi(this); plane=new player; QTimer *timer = new QTimer(this); connect(timer, SIGNAL(timeout()), this, SLOT(update())); timer->start(20); QTimer *timer2 = new QTimer(this); connect(timer2, SIGNAL(timeout()), this, SLOT(refresh())); timer2->start(20); QTimer *timer3 = new QTimer(this); connect(timer3, SIGNAL(timeout()), this, SLOT(generate_enemy())); timer3->start(2000); score=0; score_label=new QLabel(this); score_label->setGeometry(0,20,100,100); score_label->setText(QString::number(score).prepend("score:")); hp_label=new QLabel(this); hp_label->setGeometry(0,80,100,100); hp_label->setText(QString::number(plane->health).prepend("hp:")); } Widget::~Widget() { delete ui; } void Widget::paintEvent(QPaintEvent*) { QPainter painter(this); plane->drawplayer(painter); for(int i=0;i<Bullet.size();i++) { Bullet.at(i).drawbullet(painter); } for(int i=0;i<Enemy.size();i++) { Enemy.at(i).drawenemy(painter); } } void Widget::keyPressEvent(QKeyEvent *event) { switch (event->key()) { case 'a':{ } case 'A':{ keypressed[2]=true; break; } case 'd':{ } case 'D':{ keypressed[3]=true; break; } case 'w':{ } case 'W':{ keypressed[0]=true; break; } case 's':{ } case 'S':{ keypressed[1]=true; break; } case 16777220: { keypressed[4]=true; } } } void Widget::keyReleaseEvent(QKeyEvent *event) { switch (event->key()) { case 'a':{ } case 'A':{ keypressed[2]=false; break; } case 'd':{ } case 'D':{ keypressed[3]=false; break; } case 'w':{ } case 'W':{ keypressed[0]=false; break; } case 's':{ } case 'S':{ keypressed[1]=false; break; } case 16777220: { keypressed[4]=false; } } } void Widget::refresh() { plane->move(keypressed,Bullet); for(int i=0;i<Bullet.size();i++) { Bullet.at(i).refresh(); } detect_crash(); enemy_AI(); if(plane->health<0)exit(0); } void Widget::generate_enemy() { if(Enemy.size()<5){ enemy *a=new enemy(); Enemy.push_back(*a); } std::vector<bullet>(Bullet).swap(Bullet);//释放rease的内存 } void Widget::detect_crash() { int flag; for(int i=0;i<Bullet.size();i++) if(Bullet.at(i).y<0)Bullet.erase(Bullet.begin()+i); for(int j=0;j<Enemy.size();j++) { if(Enemy.at(j).health<0){ Enemy.erase(Enemy.begin()+j); score++; score_label->setText(QString::number(score).prepend("score:")); } } for(std::vector<bullet>::iterator i=Bullet.begin();i!=Bullet.end();) { flag=0; if(i->is_my) { for(int j=0;j<Enemy.size();j++) { if(Enemy.at(j).crash(i)) { Enemy.at(j).hitted(); i=Bullet.erase(i); flag=1; break; } } } else{ if(plane->crash(i)) { plane->hitted(); i=Bullet.erase(i); flag=1; hp_label->setText(QString::number(plane->health).prepend("hp:")); } } if(flag==0)i++; } } void Widget::enemy_AI() { for(int i=0;i<Enemy.size();i++) { Enemy.at(i).AI(*plane,Bullet); } }