LightsExplorer.h

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/* $Id:$ */

#ifndef __LIGHTS_EXPLORER_H
#define __LIGHTS_EXPLORER_H

#include <esg/explorer/Explorer.h>
#include <esg/LightArray.h>
#include <esg/Export>

/*
 * Explorer searching all lights in the scene
 */

namespace esg {

class OGSCENE_EXPORT LightsExplorer : public Explorer {
protected:
    ESGint       _freePosition;
    LightArray * _pLights;
    unsigned     _caches;
    
protected:
    virtual bool _process_leaf              (SceneGraphObject&);
    virtual void _accept_new_transformation (const Matrix4&) {}

public:
    LightsExplorer (unsigned caches = 0)
        : _freePosition(0), _pLights(NULL), _caches(caches) {}
    
    virtual ~LightsExplorer () { if (_pLights) delete _pLights; }

    LightArray* result (void) {
        LightArray* pRet = _pLights;
        _pLights = NULL;
        _freePosition = 0;
        return pRet;
    }
};
    
}; // namespace

#endif // __LIGHTS_EXPLORER_H

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