#ifndef SHOOTGAMEWIDGET_H
#define SHOOTGAMEWIDGET_H

#include <QWidget>
#include "OpenCVManager.h"
#include <QTimer>
#include <QThread>

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();
    }
}