Engines.h

//
// Engines.h
//
// Engines used by Enviro
//
// Copyright (c) 2001-2011 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef ENVIRO_ENGINESH
#define ENVIRO_ENGINESH

#include "vtlib/core/NavEngines.h"

class TerrainPicker;


class FlatFlyer : public vtLastMouse
{
public:
    FlatFlyer();

    void Eval();
    void OnMouse(vtMouseEvent &event);

protected:
    bool m_bDrag;
    bool m_bZoom;
    FPoint3 m_start_wp;
    IPoint2 m_startpos;
};


class GrabFlyer : public vtTerrainFlyer
{
public:
    GrabFlyer(float fSpeed);
    void Eval();
    void OnMouse(vtMouseEvent &event);

    void SetTerrainPicker(TerrainPicker *pTP) { m_pTP = pTP; }

protected:
    bool m_bDrag;
    bool m_bPivot;
    bool m_bZoom;
    IPoint2 m_startpos;

    TerrainPicker *m_pTP;
    FPoint3 m_start_wp;
    FMatrix4 m_start_eye;

    // for dragging
    float m_fHeight;
};

#endif  // ENVIRO_ENGINESH