#ifndef GAMEVIEW_H
#define GAMEVIEW_H

#include <QQuickItem>

#include <QtGui/QOpenGLFunctions>
#include <QtGui/QOpenGLShaderProgram>

class GameViewRenderer : public QObject, protected QOpenGLFunctions {
  Q_OBJECT
 public:
  GameViewRenderer() : m_delta(0) {}
  ~GameViewRenderer();

  void tick(quint32 delta) { m_delta = delta; }
  void setViewportSize(const QSize& size);

 public slots:
  void paint();

 private:
  quint32 m_delta;
};

class GameView : public QQuickItem {
  Q_OBJECT

 public:
  GameView();

  Q_INVOKABLE void tick(quint32 delta);

 signals:
  void tChanged();

 public slots:
  void sync();
  void cleanup();

 private slots:
  void handleWindowChanged(QQuickWindow* win);

 private:
  quint32 m_delta;
  GameViewRenderer* m_renderer;
  bool m_windowChanged;
  qint32 m_centerX;
  qint32 m_centerY;
};

#endif  // GAMEVIEW_H