/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2009 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-----------------------------------------------------------------------------
*/
#ifndef __BSPSCENENODE_H__
#define __BSPSCENENODE_H__

#include "OgreBspPrerequisites.h"
#include "OgreSceneNode.h"

namespace Ogre {

    /** Specialisation of SceneNode for the BspSceneManager.
    @remarks
        This specialisation of SceneNode is to enable information about the
        leaf node in which any attached objects are held is stored for
        use in the visibility determination. 
    @par
        Do not confuse this class with BspNode, which reflects nodes in the
        BSP tree itself. This class is just like a regular SceneNode, except that
        it should be locating BspNode leaf elements which objects should be included
        in. Note that because objects are movable, and thus may very well be overlapping
        the boundaries of more than one leaf, that it is possible that an object attached
        to one BspSceneNode may actually be associated with more than one BspNode.
    */
    class BspSceneNode : public SceneNode
    {
	protected:
		/// Overridden from SceneNode
		void setInSceneGraph(bool inGraph);		
    public:
        BspSceneNode(SceneManager* creator) : SceneNode(creator) {}
        BspSceneNode(SceneManager* creator, const String& name) 
            : SceneNode(creator, name) {}
        /// Overridden from Node
        void _update(bool updateChildren, bool parentHasChanged);
        /** Detaches the indexed object from this scene node.
        @remarks
            Detaches by index, see the alternate version to detach by name. Object indexes
            may change as other objects are added / removed.
        */
        MovableObject* detachObject(unsigned short index);

        /** Detaches the named object from this node and returns a pointer to it. */
        MovableObject* detachObject(const String& name);

        /** Detaches all objects attached to this node.
        */
        void detachAllObjects(void);


    };

}

#endif
