--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qmlfrontend/hwengine.h	Wed Jul 31 23:14:27 2019 +0200
@@ -0,0 +1,56 @@
+#ifndef HWENGINE_H
+#define HWENGINE_H
+
+#include <QList>
+#include <QObject>
+
+#include "engine_interface.h"
+#include "game_config.h"
+
+class QQmlEngine;
+class EngineInstance;
+class PreviewAcceptor;
+
+class HWEngine : public QObject {
+  Q_OBJECT
+
+  Q_PROPERTY(int previewHedgehogsCount READ previewHedgehogsCount NOTIFY
+                 previewHedgehogsCountChanged)
+  Q_PROPERTY(PreviewAcceptor* previewAcceptor READ previewAcceptor WRITE
+                 setPreviewAcceptor NOTIFY previewAcceptorChanged)
+  Q_PROPERTY(QString engineLibrary READ engineLibrary WRITE setEngineLibrary
+                 NOTIFY engineLibraryChanged)
+
+ public:
+  explicit HWEngine(QObject* parent = nullptr);
+  ~HWEngine();
+
+  Q_INVOKABLE void getPreview();
+  Q_INVOKABLE EngineInstance* runQuickGame();
+
+  int previewHedgehogsCount() const;
+  PreviewAcceptor* previewAcceptor() const;
+  QString engineLibrary() const;
+
+ public slots:
+  void setPreviewAcceptor(PreviewAcceptor* previewAcceptor);
+  void setEngineLibrary(const QString& engineLibrary);
+
+ signals:
+  void previewIsRendering();
+  void previewImageChanged();
+  void previewHogCountChanged(int count);
+  void gameFinished();
+  void previewHedgehogsCountChanged(int previewHedgehogsCount);
+  void previewAcceptorChanged(PreviewAcceptor* previewAcceptor);
+  void engineLibraryChanged(const QString& engineLibrary);
+
+ private:
+  QQmlEngine* m_engine;
+  GameConfig m_gameConfig;
+  int m_previewHedgehogsCount;
+  PreviewAcceptor* m_previewAcceptor;
+  QString m_engineLibrary;
+};
+
+#endif  // HWENGINE_H