sceneoctree.h

使用stl技术,(还没看,是听说的)

#ifndef __SCENE_OCTREE_H_
#define __SCENE_OCTREE_H_



#include "Ogre.h"
#include "stdio.h"
#include <vector>
#include <tinyxml.h>
#include "OgreStringConverter.h"
#include "SceneOctreeRenderable.h"
#include <vector>

using namespace Ogre;

struct SharedGeometryData{
	VertexData* VertData;
	Real* PhysVertData;
	String MaterialName;
};

class SceneOctree
{
public:
	SceneOctree();
	~SceneOctree();

	// Load the <Octree> Data
	int Load( TiXmlElement *Element );
	void Unload();

	// Must be called before Load is called //
	void SetSceneManager( SceneManager *NewSceneManager ){
		mSceneManager = NewSceneManager;
	}

	void SetRootNode( SceneNode* ParentNode ){
		RootNode = ParentNode->createChildSceneNode();
	}

	int GetTotalMeshes( void ){
		return TotalOctreeMeshes;
	}

	void SetOctreeVisible( int Value );

	float* GetVerticesPtr( int MeshIndex );
	int*  GetIndexPtr( int MeshIndex );
	int GetNumVertices( int MeshIndex );
	int GetNumIndex( int MeshIndex );

	std::vector <SceneOctreeRenderable*> GetAllRenderables( void );

private:

	int OctreeVisible;

	enum BranchID{
		TopFrontLeft,
		TopFrontRight,
		TopRearLeft,
		TopRearRight,
		BottomFrontLeft,
		BottomFrontRight,
		BottomRearLeft,
		BottomRearRight
	};

	// Load Functions //
	void ReadNode( Ogre::SceneNode *ParentNode, TiXmlElement* CurElement );
	void LoadSharedGeometry( TiXmlElement* XMLSharedGeometry );
	void GetSharedPointers( Real *(&pPos), Real *(&pNorm), Real *(&pColor), Real *(&pTex), int, int, int, int, VertexBufferBinding* );

	FILE* fpBin;
	DataChunk chunk;

	int TotalOctreeMeshes;

	SceneNode	 *RootNode;
	SceneManager *mSceneManager;

	std::vector <SceneOctreeRenderable*> RenderableArray;
	std::vector <SceneNode*> SceneNodeArray;

	// All vertex information is shared from here. Each Mesh in the octree has a pointer
	// to the correct VertexData pointer in this array.
	std::vector<SharedGeometryData*> SharedVertData;

	// Unused for now
	//String Name;
};

#endif