Model3D.h

#pragma once
#include "Maths.h"
#include "Assimp/include/assimp.h"
#include "Assimp/include/aiPostProcess.h"
#include "Assimp/include/aiScene.h"
#include "Assimp/include/SceneAnimator.h"


class Model3D
{
public:
        Model3D(const char* strPath);

        bool isModelLoaded();

        void process(bool bUpdateBBox = false);

        bool hasAnimations();

        int numberOfAnimations();

        char* animationName(unsigned int n);

        bool setAnimation(unsigned int n, float fSecondsIni = 0.0f, float fSecondsEnd = 0.0f);

        int getActualAnimation();

        void disableAnimation();

        void advance(float fSeconds);

        void setAnimationTime(float fSeconds);

        virtual ~Model3D(void);

protected:
        virtual void preProcess() {};

        virtual void applyTransformation(float* fMatrix4Data) = 0;

        virtual void unApplyLastTransformation() = 0;

        virtual void processMesh(const struct aiMaterial *pMtl, const struct aiFace* pFaces, unsigned int nNumFaces, aiVector3D* aVertices, aiColor4D* aColorsByVertexIndex, aiVector3D* aNormalsByVertexIndex, aiVector3D* aTextureCoordsByVertexIndex) = 0;

        virtual void postProcess() {};

private:
        void getBoundingBox(Vector3* pMin, Vector3* pMax);
        void getBoundingBoxForNode(const struct aiNode* pNd, Vector3* pMin, Vector3* pMax, struct aiMatrix4x4* pTrafo);
        void recursiveProcess(const struct aiNode* pNd, bool bUpdateBBox);


public:
        Vector3 oSceneMin;

        Vector3 oSceneMax;

        Vector3 oSceneCenter;

        Vector3 oUpdatedSceneMin;

        Vector3 oUpdatedSceneMax;

        Vector3 oUpdatedSceneCenter;

protected:
        const struct aiScene* _pScene;
        SceneAnimator* _pSceneAnimator;
        float _fSecondsCount, _fSecondsCountIni, _fSecondsCountEnd;
        int _nActualAnimation;

        //estructuras auxiliares para animar
        aiVector3D* _aVertices;
        bool* _aVertexModified;
        unsigned int maxMeshVertices;

        //bandera para indicar que es el primer vertice que se usa para actualizar el bounding box
        bool _bFirstBBoxUpdate;
};