TimeEngines.h

//
// TimeEngines.h
//
// Copyright (c) 2001-2006 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef TIMEENGINESH
#define TIMEENGINESH

#include "Engine.h"
#include "vtdata/vtTime.h"


class vtTimeTarget : public osg::Referenced
{
public:
    virtual void SetTime(const vtTime &time) {}
};

class vtTimeEngine : public vtEngine
{
public:
    vtTimeEngine(int start_hour = -1);

    void Eval();

    void SetTime(const vtTime &time);
    void GetTime(vtTime &time) const;
    vtTime GetTime() const;

    void SetSpeed(float factor);
    float GetSpeed() { return m_fSpeed; }

protected:
    void _InformTarget();

    float m_fSeconds;
    float m_fSpeed;
    float m_last_time;

    vtTime m_time;
};
    // Group eng

#endif  // TIMEENGINESH