项目实战:Qt+OpenCV激光射击游戏(识别激光、识别圆)

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原博主博客地址:https://blog.csdn.net/qq21497936
原博主博客导航:https://blog.csdn.net/qq21497936/article/details/102478062
本文章博客地址:https://blog.csdn.net/qq21497936/article/details/106647346
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需求

  激光射击游戏,外设激光射击目标圆圈,计分游戏。


原理

  使用OpenCV打开摄像头,识别圆圈,识别激光,判断激光点是否在圆圈内。


注意

  需要摄像头,摄像头对准白色矩形区域,游戏钱需要先对摄像头进行手动校准,提供调整校准标定的功能,调整到圆圈和激光都可识别。


涉及技术博文

  《项目实战:Qt+OpenCV操作摄像头拍照、调节参数和视频录制》
  《OpenCV开发笔记(一):OpenCV介绍、编译》
  《OpenCV开发笔记(五):OpenCV读取与操作摄像头》
  《OpenCV开发笔记(七):OpenCV基础图形绘制》
  《OpenCV开发笔记(十):OpenCV图像颜色通道分离和图像颜色多通道混合》
  《OpenCV开发笔记(二十一):算法基础之形态学滤波-膨胀》
  《OpenCV开发笔记(二十二):算法基础之形态学滤波-腐蚀》
  《OpenCV开发笔记(二十八):带你学习图像识别之阈值化》
  《OpenCV开发笔记(三十六):红胖子8分钟带你深入了解缩放与图像金字塔(图文并茂+浅显易懂+程序源码)》
  《OpenCV开发笔记(五十三):红胖子8分钟带你深入了解模板匹配识别(图文并茂+浅显易懂+程序源码)》


Demo:激光射击游戏 v1.0.0

  
  
  
  
  
  


下载地址

  CSDN:https://download.csdn.net/download/qq21497936/12507420
  QQ群:1047134658(点击“文件”搜索“shootGame”,群内与博文同步更新所有可开源的源码模板)


核心代码

#ifndef SHOOTGAMEWIDGET_H
#define SHOOTGAMEWIDGET_H

#include 
#include "OpenCVManager.h"
#include 
#include 

namespace Ui {
class ShootGameWidget;
}

class ShootGameWidget : public QWidget
{
    Q_OBJECT

public:
    explicit ShootGameWidget(QWidget *parent = 0);
    ~ShootGameWidget();

protected slots:
    void slot_captureOneFrame(cv::Mat mat);
    bool slot_recognize(cv::Mat mat, bool show = false);
    void slot_timeOut();

private slots:
    void on_pushButton_start_clicked();
    void on_pushButton_out_clicked();

    void on_pushButton_startCameraTest_clicked();
    void on_pushButton_stopCameraTest_clicked();

    void on_pushButton_add1_clicked();
    void on_pushButton_dec1_clicked();
    void on_pushButton_add2_clicked();
    void on_pushButton_dec2_clicked();
    void on_pushButton_add3_clicked();
    void on_pushButton_dec3_clicked();

private:
    void paintEvent(QPaintEvent *event);
    void timerEvent(QTimerEvent *event);

private:
    Ui::ShootGameWidget *ui;
    OpenCVManager *_pOpenCVManager;
    QThread *_pOpenCVManagerThread;
    cv::Mat _srcMat;
    QImage _srcImage;
    int _r;
    int _penWidth;
    cv::Mat _circleMat;
    cv::Mat _dotMat;
    cv::Mat _dot2Mat;
    cv::Mat _dot3Mat;
    cv::Mat _dot4Mat;
    cv::Mat _dot5Mat;
    cv::Mat _dot6Mat;
    cv::Mat _dot7Mat;
    int _timerId;
    double _f;
    int _margin;
    int _count;
    int _totalTime;         // 总时间,默认60s
    int _currentTime;       // 当前时间
    bool _running;          // 是否游戏开始
    QPoint _centerPoint;    // 刷新圆圈的位置
    bool _hitFlag;          // 是否击中标志,每次刷新位置,设置false,判断是否第一次击中用于计分
    int _score;             // 得分
    QTimer *_pTimer;        // 定时器,定时减少秒数
    bool _result;           // 标记是否打完出结果
};
#endif // SHOOTGAMEWIDGET_H
void ShootGameWidget::on_pushButton_start_clicked()
{
    if(!_pOpenCVManager->startCapture(0, 800, 600))
    {
        QMessageBox::information(0, "错误", "检测摄像头失败");
        return;
    }
    ui->label_title->setVisible(false);
    ui->pushButton_start->setVisible(false);
    ui->pushButton_out->setVisible(false);
    ui->groupBox->setVisible(false);
    _hitFlag = false;
    _score = 0;
    _currentTime = _totalTime;
    _running = true;
    _result = false;
    _pTimer->start();
}
void ShootGameWidget::paintEvent(QPaintEvent *event)
{
    if(ui->pushButton_stopCameraTest->isEnabled() || _running)
    {
        QPainter painter(this);
        painter.fillRect(rect(), Qt::black);
        painter.setPen(QPen(Qt::white, 1));
        painter.drawRect(_margin,
                         _margin,
                         rect().width() - _margin * 2,
                         rect().height() - _margin * 2);
        QPen pen = painter.pen();
        pen.setWidth(10);
        pen.setColor(Qt::green);
        painter.setPen(pen);
        painter.drawEllipse(_centerPoint, _r/2, _r/2);
//        painter.setPen(QPen(Qt::red, 10));
//        painter.drawPoint(_centerPoint);
        if(_running)
        {
            painter.setPen(QPen(Qt::white, 1));
            painter.drawText(300, 50, QString("得分: %1").arg(_score));
            painter.drawText(500, 50, QString("倒计时: %1").arg(_currentTime));
            if(_hitFlag)
            {
                painter.drawText(700, 50, QString("已击中"));
            }else{
                painter.drawText(700, 50, QString("未击中"));
            }
        }
    }
    if(_result)
    {
        QPainter painter(this);
        painter.setPen(QPen(Qt::black, 4));
        QFont font = painter.font();
        font.setPixelSize(64);
        painter.setFont(font);
        painter.drawText(rect(), Qt::AlignCenter, QString("游戏结束,您的得分为 %1 !!!").arg(_score));
    }
}
void ShootGameWidget::slot_timeOut()
{
    if(_running)
    {
        _currentTime--;
        if(_currentTime == 0)
        {
            if(!_pOpenCVManager->stopCapture())
            {
            }
            ui->label_title->setVisible(true);
            ui->pushButton_start->setVisible(true);
            ui->pushButton_out->setVisible(true);
            ui->groupBox->setVisible(true);
            _hitFlag = false;
            _currentTime = _totalTime;
            _running = false;
            _pTimer->stop();
            _result = true;
        }
        update();
    }
}

原博主博客地址:https://blog.csdn.net/qq21497936
原博主博客导航:https://blog.csdn.net/qq21497936/article/details/102478062
本文章博客地址:https://blog.csdn.net/qq21497936/article/details/106647346

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