// Copyright (C) 2002-2011 Nikolaus Gebhardt

// This file is part of the "Irrlicht Engine".

// For conditions of distribution and use, see copyright notice in irrlicht.h


#ifndef __C_META_TRIANGLE_SELECTOR_H_INCLUDED__
#define __C_META_TRIANGLE_SELECTOR_H_INCLUDED__

#include "IMetaTriangleSelector.h"
#include "irrArray.h"

namespace irr
{
namespace scene
{

//! Interface for making multiple triangle selectors work as one big selector.

class CMetaTriangleSelector : public IMetaTriangleSelector
{
public:

	//! constructor

	CMetaTriangleSelector();

	//! destructor

	virtual ~CMetaTriangleSelector();

	//! Returns amount of all available triangles in this selector

	virtual s32 getTriangleCount() const;

	//! Gets all triangles.

	virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
		s32& outTriangleCount, const core::matrix4* transform=0) const;

	//! Gets all triangles which lie within a specific bounding box.

	virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
		s32& outTriangleCount, const core::aabbox3d<f32>& box,
		const core::matrix4* transform=0) const;

	//! Gets all triangles which have or may have contact with a 3d line.

	virtual void getTriangles(core::triangle3df* triangles, s32 arraySize,
		s32& outTriangleCount, const core::line3d<f32>& line,
		const core::matrix4* transform=0) const;

	//! Adds a triangle selector to the collection of triangle selectors

	//! in this metaTriangleSelector.

	virtual void addTriangleSelector(ITriangleSelector* toAdd);

	//! Removes a specific triangle selector which was added before	from the collection.

	virtual bool removeTriangleSelector(ITriangleSelector* toRemove);

	//! Removes all triangle selectors from the collection.

	virtual void removeAllTriangleSelectors();

	//! Return the scene node associated with a given triangle.

	virtual ISceneNode* getSceneNodeForTriangle(u32 triangleIndex) const;

private:

	core::array<ITriangleSelector*> TriangleSelectors;
};

} // end namespace scene

} // end namespace irr



#endif