source: trunk/VUT/Ogre/include/OgrePlatformQueryManager.h @ 159

#ifndef _PlatformQueryManager_H__
#define _PlatformQueryManager_H__

#include "VisibilityInfo.h"
#include "QueryManager.h"
#include "OgrePlatformHierarchyInterface.h"

namespace Ogre {
  
/**
        Class which implements the QueryManager for Ogre scene queries.
*/
class __declspec(dllexport) PlatformQueryManager: public GtpVisibility::QueryManager
{
public:
    /** Constructor taking a hierarchy interface as an argument. This allows to operate
        onm different hierarchy types, while reusing the implementation of the query methods.
    */
        PlatformQueryManager(PlatformHierarchyInterface *hierarchyInterface, Viewport *vp);
    
    /** 
        Uses the specified point to execute the visibility query in all directions. 
        @sa ComputeCameraVisibility()
    */
    void ComputeFromPointVisibility(const Vector3 &point,
                               InfoContainer<GtpVisibility::NodeInfo> *visibleNodes,
                               InfoContainer<GtpVisibility::MeshInfo> *visibleGeometry,
                                   InfoContainer<GtpVisibility::PatchInfo> *visiblePatches,
                               bool relativeVisibility = false);
    
  /** 
      Ray shooting interface: finds an intersection with objects in the scene.

      @param ray The given input ray (assuming the ray direction is normalized)

      @param visibleMeshes List of meshes intersecting the ray

      @param isGlobalLine If false only first intersection with opaque object is returned.
      Otherwise all intersections of the ray with the scene are found.

      @return true if there is any intersection. 
        */
    virtual bool
    ShootRay(const Ray &ray,
             std::vector<Mesh *> *visibleMeshes,
             bool isGlobalLine = false
             );  

        /** Sets a viewport for rendering.
        */
        void SetViewport(Viewport *vp);
        
protected:
        Viewport *mViewport;
        bool mWasInitialised;
};

} // namespace Ogre

#endif // PlatformQueryManager