RedCore/cocos2d/cocos/3d/CCBundle3D.cpp

/****************************************************************************
Copyright (c) 2014-2017 Chukong Technologies Inc.

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
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****************************************************************************/

#include "3d/CCBundle3D.h"
#include "3d/CCObjLoader.h"

#include "base/ccMacros.h"
#include "platform/CCFileUtils.h"
#include "renderer/CCGLProgram.h"
#include "3d/CCBundleReader.h"
#include "base/CCData.h"

#define BUNDLE_TYPE_SCENE               1
#define BUNDLE_TYPE_NODE                2
#define BUNDLE_TYPE_ANIMATIONS          3
#define BUNDLE_TYPE_ANIMATION           4
#define BUNDLE_TYPE_ANIMATION_CHANNEL   5
#define BUNDLE_TYPE_MODEL               10
#define BUNDLE_TYPE_MATERIAL            16
#define BUNDLE_TYPE_EFFECT              18
#define BUNDLE_TYPE_CAMERA              32
#define BUNDLE_TYPE_LIGHT               33
#define BUNDLE_TYPE_MESH                34
#define BUNDLE_TYPE_MESHPART            35
#define BUNDLE_TYPE_MESHSKIN            36

static const char* VERSION = "version";
static const char* ID = "id";
static const char* DEFAULTPART = "body";
static const char* VERTEXSIZE = "vertexsize";
static const char* VERTEX = "vertex";
static const char* VERTICES = "vertices";
static const char* INDEXNUM = "indexnum";
static const char* INDICES = "indices";
static const char* SUBMESH = "submesh";
static const char* ATTRIBUTES = "attributes";
static const char* ATTRIBUTESIZE = "size";
static const char* TYPE = "type";
static const char* ATTRIBUTE = "attribute";
static const char* SKIN = "skin";
static const char* BINDSHAPE = "bindshape";
static const char* MESH = "mesh";
static const char* MESHES = "meshes";
static const char* MESHPARTID = "meshpartid";
static const char* MATERIALID = "materialid";
static const char* NODE = "node";
static const char* NODES = "nodes";
static const char* CHILDREN = "children";
static const char* PARTS = "parts";
static const char* BONES = "bones";
static const char* SKELETON = "skeleton";
static const char* MATERIALS = "materials";
static const char* ANIMATIONS = "animations";
static const char* TRANSFORM = "transform";
static const char* OLDTRANSFORM = "tansform";
static const char* ANIMATION = "animation";
static const char* MATERIAL = "material";
static const char* BASE = "base";
static const char* FILENAME = "filename";
static const char* TEXTURES = "textures";
static const char* LENGTH =   "length";
static const char* BONEID  = "boneId";
static const char* KEYFRAMES  = "keyframes";
static const char* TRANSLATION =  "translation";
static const char* ROTATION =  "rotation";
static const char* SCALE =  "scale";
static const char* KEYTIME =  "keytime";
static const char* AABBS = "aabb";

NS_CC_BEGIN

void getChildMap(std::map<int, std::vector<int> >& map, SkinData* skinData, const rapidjson::Value& val)
{
    if (!skinData)
        return;

    // get transform matrix
    Mat4 transform;
    const rapidjson::Value& parent_transform = val[OLDTRANSFORM];
    for (rapidjson::SizeType j = 0, size = parent_transform.Size(); j < size; ++j)
    {
        transform.m[j] = parent_transform[j].GetDouble();
    }

    // set origin matrices
    std::string parent_name = val[ID].GetString();
    int parent_name_index = skinData->getSkinBoneNameIndex(parent_name);
    if (parent_name_index < 0)
    {
        skinData->addNodeBoneNames(parent_name);
        skinData->nodeBoneOriginMatrices.push_back(transform);
        parent_name_index = skinData->getBoneNameIndex(parent_name);
    }
    else if (parent_name_index < static_cast<int>(skinData->skinBoneNames.size()))
    {
        skinData->skinBoneOriginMatrices[parent_name_index] = transform;
    }

    // set root bone index
    if(skinData->rootBoneIndex < 0)
        skinData->rootBoneIndex = parent_name_index;

    if (!val.HasMember(CHILDREN))
        return;

    const rapidjson::Value& children = val[CHILDREN];
    for (rapidjson::SizeType i = 0, size = children.Size(); i < size; ++i)
    {
        // get child bone name
        const rapidjson::Value& child = children[i];

        std::string child_name = child[ID].GetString();
        int child_name_index = skinData->getSkinBoneNameIndex(child_name);
        if (child_name_index < 0)
        {
            skinData->addNodeBoneNames(child_name);
            child_name_index = skinData->getBoneNameIndex(child_name);

        }

        map[parent_name_index].push_back(child_name_index);

        getChildMap(map, skinData, child);

    }
}

Bundle3D* Bundle3D::createBundle()
{
    auto bundle = new (std::nothrow) Bundle3D();
    return bundle;
}

void Bundle3D::destroyBundle(Bundle3D* bundle)
{
    delete bundle;
}

void Bundle3D::clear()
{
    if (_isBinary)
    {
        _binaryBuffer.clear();
        CC_SAFE_DELETE_ARRAY(_references);
    }
    else
    {
        _jsonBuffer.clear();
    }
}

bool Bundle3D::load(const std::string& path)
{
    if (path.empty())
        return false;
    
    if (_path == path)
        return true;

    getModelRelativePath(path);

    bool ret = false;
    std::string ext = FileUtils::getInstance()->getFileExtension(path);
    if (ext == ".c3t")
    {
        _isBinary = false;
        ret = loadJson(path);
    }
    else if (ext == ".c3b")
    {
        _isBinary = true;
        ret = loadBinary(path);
    }
    else 
    {
        CCLOG("warning: %s is invalid file formate", path.c_str());
    }

    ret?(_path = path):(_path = "");

    return ret;
}

bool Bundle3D::loadObj(MeshDatas& meshdatas, MaterialDatas& materialdatas, NodeDatas& nodedatas, const std::string& fullPath, const char* mtl_basepath)
{
    meshdatas.resetData();
    materialdatas.resetData();
    nodedatas.resetData();

    std::string mtlPath = "";
    if (mtl_basepath)
        mtlPath = mtl_basepath;
    else
        mtlPath = fullPath.substr(0, fullPath.find_last_of("\\/") + 1);
    
    std::vector<tinyobj::shape_t> shapes;
    std::vector<tinyobj::material_t> materials;
    auto ret = tinyobj::LoadObj(shapes, materials, fullPath.c_str(), mtlPath.c_str());
    if (ret.empty())
    {
        //fill data
        //convert material
        int i = 0;
        char str[20];
        std::string dir = "";
        auto last = fullPath.rfind("/");
        if (last != std::string::npos)
            dir = fullPath.substr(0, last + 1);
        for (auto& material : materials) {
            NMaterialData materialdata;
            
            NTextureData tex;
            tex.filename = material.diffuse_texname.empty() ? material.diffuse_texname : dir + material.diffuse_texname;
            tex.type = NTextureData::Usage::Diffuse;
            tex.wrapS = GL_CLAMP_TO_EDGE;
            tex.wrapT = GL_CLAMP_TO_EDGE;
            
            sprintf(str, "%d", ++i);
            materialdata.textures.push_back(tex);
            materialdata.id = str;
            material.name = str;
            materialdatas.materials.push_back(materialdata);
        }
        
        //convert mesh
        i = 0;
        for (auto& shape : shapes) {
            auto mesh = shape.mesh;
            MeshData* meshdata = new (std::nothrow) MeshData();
            MeshVertexAttrib attrib;
            attrib.size = 3;
            attrib.type = GL_FLOAT;
            
            if (mesh.positions.size())
            {
                attrib.vertexAttrib = GLProgram::VERTEX_ATTRIB_POSITION;
                attrib.attribSizeBytes = attrib.size * sizeof(float);
                meshdata->attribs.push_back(attrib);
                
            }
            bool hasnormal = false, hastex = false;
            if (mesh.normals.size())
            {
                hasnormal = true;
                attrib.vertexAttrib = GLProgram::VERTEX_ATTRIB_NORMAL;
                attrib.attribSizeBytes = attrib.size * sizeof(float);
                meshdata->attribs.push_back(attrib);
            }
            if (mesh.texcoords.size())
            {
                hastex = true;
                attrib.size = 2;
                attrib.vertexAttrib = GLProgram::VERTEX_ATTRIB_TEX_COORD;
                attrib.attribSizeBytes = attrib.size * sizeof(float);
                meshdata->attribs.push_back(attrib);
            }
            
            auto vertexNum = mesh.positions.size() / 3;
            for(unsigned int k = 0; k < vertexNum; ++k)
            {
                meshdata->vertex.push_back(mesh.positions[k * 3]);
                meshdata->vertex.push_back(mesh.positions[k * 3 + 1]);
                meshdata->vertex.push_back(mesh.positions[k * 3 + 2]);
                
                if (hasnormal)
                {
                    meshdata->vertex.push_back(mesh.normals[k * 3]);
                    meshdata->vertex.push_back(mesh.normals[k * 3 + 1]);
                    meshdata->vertex.push_back(mesh.normals[k * 3 + 2]);
                }
                
                if (hastex)
                {
                    meshdata->vertex.push_back(mesh.texcoords[k * 2]);
                    meshdata->vertex.push_back(mesh.texcoords[k * 2 + 1]);
                }
            }
            
            //split into submesh according to material
            std::map<int, std::vector<unsigned short> > subMeshMap;
            for (size_t k = 0, size = mesh.material_ids.size(); k < size; ++k) {
                int id = mesh.material_ids[k];
                size_t idx = k * 3;
                subMeshMap[id].push_back(mesh.indices[idx]);
                subMeshMap[id].push_back(mesh.indices[idx + 1]);
                subMeshMap[id].push_back(mesh.indices[idx + 2]);
            }
            
            auto node = new (std::nothrow) NodeData();
            node->id = shape.name;
            for (auto& submesh : subMeshMap) {
                meshdata->subMeshIndices.push_back(submesh.second);
                meshdata->subMeshAABB.push_back(calculateAABB(meshdata->vertex, meshdata->getPerVertexSize(), submesh.second));
                sprintf(str, "%d", ++i);
                meshdata->subMeshIds.push_back(str);
                
                auto modelnode = new (std::nothrow) ModelData();
                modelnode->materialId = submesh.first == -1 ? "" : materials[submesh.first].name;
                modelnode->subMeshId = str;
                node->modelNodeDatas.push_back(modelnode);
            }
            nodedatas.nodes.push_back(node);
            meshdatas.meshDatas.push_back(meshdata);
        }
        
        return true;
    }
    CCLOG("warning: load %s file error: %s", fullPath.c_str(), ret.c_str());
    return false;
}

bool Bundle3D::loadSkinData(const std::string& /*id*/, SkinData* skindata)
{
    skindata->resetData();

    if (_isBinary)
    {
        return loadSkinDataBinary(skindata);
    }
    else
    {
        return loadSkinDataJson(skindata);
    }
}

bool Bundle3D::loadAnimationData(const std::string& id, Animation3DData* animationdata)
{
    animationdata->resetData();

    if (_isBinary)
    {
        return loadAnimationDataBinary(id,animationdata);
    }
    else
    {
        return loadAnimationDataJson(id,animationdata);
    }
}

//since 3.3, to support reskin
bool Bundle3D::loadMeshDatas(MeshDatas& meshdatas)
{
    meshdatas.resetData();
    if (_isBinary)
    {
        if (_version == "0.1" || _version == "0.2")
        {
            return loadMeshDatasBinary_0_1(meshdatas);
        }
        else
        {
            return loadMeshDatasBinary(meshdatas);
        }
    }
    else
    {
        if (_version == "1.2" || _version == "0.2")
        {
            return loadMeshDataJson_0_1(meshdatas);
        }
        else
        {
            return loadMeshDatasJson(meshdatas);
        }
    }
    return true;
}
bool  Bundle3D::loadMeshDatasBinary(MeshDatas& meshdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MESH))
        return false;
    unsigned int meshSize = 0;
    if (_binaryReader.read(&meshSize, 4, 1) != 1)
    {
        CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
        return false;
    }
    MeshData*   meshData = nullptr;
    for(unsigned int i = 0; i < meshSize ; ++i)
    {
         unsigned int attribSize=0;
        // read mesh data
        if (_binaryReader.read(&attribSize, 4, 1) != 1 || attribSize < 1)
        {
            CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
            goto FAILED;
        }
        meshData = new (std::nothrow) MeshData();
        meshData->attribCount = attribSize;
        meshData->attribs.resize(meshData->attribCount);
        for (ssize_t j = 0; j < meshData->attribCount; ++j)
        {
            std::string attribute="";
            unsigned int vSize;
            if (_binaryReader.read(&vSize, 4, 1) != 1)
            {
                CCLOG("warning: Failed to read meshdata: usage or size '%s'.", _path.c_str());
                goto FAILED;
            }
            std::string type = _binaryReader.readString();
            attribute=_binaryReader.readString();
            meshData->attribs[j].size = vSize;
            meshData->attribs[j].attribSizeBytes = meshData->attribs[j].size * 4;
            meshData->attribs[j].type =  parseGLType(type);
            meshData->attribs[j].vertexAttrib = parseGLProgramAttribute(attribute);
        }
        unsigned int vertexSizeInFloat = 0;
        // Read vertex data
        if (_binaryReader.read(&vertexSizeInFloat, 4, 1) != 1 || vertexSizeInFloat == 0)
        {
            CCLOG("warning: Failed to read meshdata: vertexSizeInFloat '%s'.", _path.c_str());
            goto FAILED;
        }

        meshData->vertex.resize(vertexSizeInFloat);
        if (_binaryReader.read(&meshData->vertex[0], 4, vertexSizeInFloat) != vertexSizeInFloat)
        {
            CCLOG("warning: Failed to read meshdata: vertex element '%s'.", _path.c_str());
            goto FAILED;
        }

        // Read index data
        unsigned int meshPartCount = 1;
        _binaryReader.read(&meshPartCount, 4, 1);

        for (unsigned int k = 0; k < meshPartCount; ++k)
        {
            std::vector<unsigned short>      indexArray;
            std:: string meshPartid = _binaryReader.readString();
            meshData->subMeshIds.push_back(meshPartid);
            unsigned int nIndexCount;
            if (_binaryReader.read(&nIndexCount, 4, 1) != 1)
            {
                CCLOG("warning: Failed to read meshdata: nIndexCount '%s'.", _path.c_str());
                goto FAILED;
            }
            indexArray.resize(nIndexCount);
            if (_binaryReader.read(&indexArray[0], 2, nIndexCount) != nIndexCount)
            {
                CCLOG("warning: Failed to read meshdata: indices '%s'.", _path.c_str());
                goto FAILED;
            }
            meshData->subMeshIndices.push_back(indexArray);
            meshData->numIndex = (int)meshData->subMeshIndices.size();
            //meshData->subMeshAABB.push_back(calculateAABB(meshData->vertex, meshData->getPerVertexSize(), indexArray));
            if (_version != "0.3" && _version != "0.4" && _version != "0.5")
            {
                //read mesh aabb
                float aabb[6];
                if (_binaryReader.read(aabb, 4, 6) != 6)
                {
                    CCLOG("warning: Failed to read meshdata: aabb '%s'.", _path.c_str());
                    goto FAILED;
                }
                meshData->subMeshAABB.push_back(AABB(Vec3(aabb[0], aabb[1], aabb[2]), Vec3(aabb[3], aabb[4], aabb[5])));
            }
            else
            {
                meshData->subMeshAABB.push_back(calculateAABB(meshData->vertex, meshData->getPerVertexSize(), indexArray));
            }
        }
        meshdatas.meshDatas.push_back(meshData);
    }
    return true;
    
FAILED:
    {
        CC_SAFE_DELETE(meshData);
        for (auto& meshdata : meshdatas.meshDatas) {
            delete meshdata;
        }
        meshdatas.meshDatas.clear();
        return false;
    }
}
bool Bundle3D::loadMeshDatasBinary_0_1(MeshDatas& meshdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MESH))
        return false;

    meshdatas.resetData();

    MeshData* meshdata = new (std::nothrow) MeshData();

    // read mesh data
    unsigned int attribSize=0;
    if (_binaryReader.read(&attribSize, 4, 1) != 1 || attribSize < 1)
    {
        CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }
    enum
    {
        VERTEX_ATTRIB_POSITION,
        VERTEX_ATTRIB_COLOR,
        VERTEX_ATTRIB_TEX_COORD,
        VERTEX_ATTRIB_NORMAL,
        VERTEX_ATTRIB_BLEND_WEIGHT,
        VERTEX_ATTRIB_BLEND_INDEX,

        VERTEX_ATTRIB_MAX,

        // backward compatibility
        VERTEX_ATTRIB_TEX_COORDS = VERTEX_ATTRIB_TEX_COORD,
    };
    for (unsigned int i = 0; i < attribSize; ++i)
    {
        unsigned int vUsage, vSize;
        if (_binaryReader.read(&vUsage, 4, 1) != 1 || _binaryReader.read(&vSize, 4, 1) != 1)
        {
            CCLOG("warning: Failed to read meshdata: usage or size '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        MeshVertexAttrib meshVertexAttribute;
        meshVertexAttribute.size = vSize;
        meshVertexAttribute.attribSizeBytes = vSize * 4;
        meshVertexAttribute.type = GL_FLOAT;
        if(vUsage == VERTEX_ATTRIB_NORMAL)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_NORMAL;
        }
        else if(vUsage == VERTEX_ATTRIB_BLEND_WEIGHT)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_BLEND_WEIGHT;
        }
        else if(vUsage == VERTEX_ATTRIB_BLEND_INDEX)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_BLEND_INDEX;
        }
        else if(vUsage == VERTEX_ATTRIB_POSITION)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_POSITION;
        }
        else if(vUsage == VERTEX_ATTRIB_TEX_COORD)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_TEX_COORD;
        }
        meshVertexAttribute.vertexAttrib = vUsage;

        meshdata->attribs.push_back(meshVertexAttribute);
    }

    // Read vertex data
    if (_binaryReader.read(&meshdata->vertexSizeInFloat, 4, 1) != 1 || meshdata->vertexSizeInFloat == 0)
    {
        CCLOG("warning: Failed to read meshdata: vertexSizeInFloat '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }

    meshdata->vertex.resize(meshdata->vertexSizeInFloat);
    if (_binaryReader.read(&meshdata->vertex[0], 4, meshdata->vertexSizeInFloat) != meshdata->vertexSizeInFloat)
    {
        CCLOG("warning: Failed to read meshdata: vertex element '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }

    // Read index data
    unsigned int meshPartCount = 1;
    for (unsigned int i = 0; i < meshPartCount; ++i)
    {
        unsigned int nIndexCount;
        if (_binaryReader.read(&nIndexCount, 4, 1) != 1)
        {
            CCLOG("warning: Failed to read meshdata: nIndexCount '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        std::vector<unsigned short> indices;
        indices.resize(nIndexCount);
        if (_binaryReader.read(&indices[0], 2, nIndexCount) != nIndexCount)
        {
            CCLOG("warning: Failed to read meshdata: indices '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        meshdata->subMeshIndices.push_back(indices);
        meshdata->subMeshAABB.push_back(calculateAABB(meshdata->vertex, meshdata->getPerVertexSize(), indices));
    }

    meshdatas.meshDatas.push_back(meshdata);
    return true;
}

bool Bundle3D::loadMeshDatasBinary_0_2(MeshDatas& meshdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MESH))
        return false;

    meshdatas.resetData();

    MeshData* meshdata = new (std::nothrow) MeshData();

    // read mesh data
    unsigned int attribSize=0;
    if (_binaryReader.read(&attribSize, 4, 1) != 1 || attribSize < 1)
    {
        CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }
    enum
    {
        VERTEX_ATTRIB_POSITION,
        VERTEX_ATTRIB_COLOR,
        VERTEX_ATTRIB_TEX_COORD,
        VERTEX_ATTRIB_NORMAL,
        VERTEX_ATTRIB_BLEND_WEIGHT,
        VERTEX_ATTRIB_BLEND_INDEX,

        VERTEX_ATTRIB_MAX,

        // backward compatibility
        VERTEX_ATTRIB_TEX_COORDS = VERTEX_ATTRIB_TEX_COORD,
    };
    for (unsigned int i = 0; i < attribSize; ++i)
    {
        unsigned int vUsage, vSize;
        if (_binaryReader.read(&vUsage, 4, 1) != 1 || _binaryReader.read(&vSize, 4, 1) != 1)
        {
            CCLOG("warning: Failed to read meshdata: usage or size '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        MeshVertexAttrib meshVertexAttribute;
        meshVertexAttribute.size = vSize;
        meshVertexAttribute.attribSizeBytes = vSize * 4;
        meshVertexAttribute.type = GL_FLOAT;
        if(vUsage == VERTEX_ATTRIB_NORMAL)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_NORMAL;
        }
        else if(vUsage == VERTEX_ATTRIB_BLEND_WEIGHT)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_BLEND_WEIGHT;
        }
        else if(vUsage == VERTEX_ATTRIB_BLEND_INDEX)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_BLEND_INDEX;
        }
        else if(vUsage == VERTEX_ATTRIB_POSITION)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_POSITION;
        }
        else if(vUsage == VERTEX_ATTRIB_TEX_COORD)
        {
            vUsage= GLProgram::VERTEX_ATTRIB_TEX_COORD;
        }
        meshVertexAttribute.vertexAttrib = vUsage;

        meshdata->attribs.push_back(meshVertexAttribute);
    }

    // Read vertex data
    if (_binaryReader.read(&meshdata->vertexSizeInFloat, 4, 1) != 1 || meshdata->vertexSizeInFloat == 0)
    {
        CCLOG("warning: Failed to read meshdata: vertexSizeInFloat '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }

    meshdata->vertex.resize(meshdata->vertexSizeInFloat);
    if (_binaryReader.read(&meshdata->vertex[0], 4, meshdata->vertexSizeInFloat) != meshdata->vertexSizeInFloat)
    {
        CCLOG("warning: Failed to read meshdata: vertex element '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }

    // read submesh
    unsigned int submeshCount;
    if (_binaryReader.read(&submeshCount, 4, 1) != 1)
    {
        CCLOG("warning: Failed to read meshdata: submeshCount '%s'.", _path.c_str());
        CC_SAFE_DELETE(meshdata);
        return false;
    }

    for (unsigned int i = 0; i < submeshCount; ++i)
    {
        unsigned int nIndexCount;
        if (_binaryReader.read(&nIndexCount, 4, 1) != 1)
        {
            CCLOG("warning: Failed to read meshdata: nIndexCount '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        std::vector<unsigned short> indices;
        indices.resize(nIndexCount);
        if (_binaryReader.read(&indices[0], 2, nIndexCount) != nIndexCount)
        {
            CCLOG("warning: Failed to read meshdata: indices '%s'.", _path.c_str());
            CC_SAFE_DELETE(meshdata);
            return false;
        }

        meshdata->subMeshIndices.push_back(indices);
        meshdata->subMeshAABB.push_back(calculateAABB(meshdata->vertex, meshdata->getPerVertexSize(), indices));
    }

    meshdatas.meshDatas.push_back(meshdata);
    
    return true;
}
bool  Bundle3D::loadMeshDatasJson(MeshDatas& meshdatas)
{
    const rapidjson::Value& mesh_data_array = _jsonReader[MESHES];
    for (rapidjson::SizeType index = 0, mesh_data_array_size = mesh_data_array.Size(); index < mesh_data_array_size; ++index)
    {
        MeshData*   meshData = new (std::nothrow) MeshData();
        const rapidjson::Value& mesh_data = mesh_data_array[index];
        // mesh_vertex_attribute
        const rapidjson::Value& mesh_vertex_attribute = mesh_data[ATTRIBUTES];
        MeshVertexAttrib tempAttrib;
        meshData->attribCount=mesh_vertex_attribute.Size();
        meshData->attribs.resize(meshData->attribCount);
        for (rapidjson::SizeType i = 0, mesh_vertex_attribute_size = mesh_vertex_attribute.Size(); i < mesh_vertex_attribute_size; ++i)
        {
            const rapidjson::Value& mesh_vertex_attribute_val = mesh_vertex_attribute[i];

            int size = mesh_vertex_attribute_val[ATTRIBUTESIZE].GetInt();
            std::string type = mesh_vertex_attribute_val[TYPE].GetString();
            std::string attribute = mesh_vertex_attribute_val[ATTRIBUTE].GetString();

            tempAttrib.size = size;
            tempAttrib.attribSizeBytes = sizeof(float) * size;
            tempAttrib.type = parseGLType(type);
            tempAttrib.vertexAttrib = parseGLProgramAttribute(attribute);
            meshData->attribs[i]=tempAttrib;
        }
        // mesh vertices
        ////////////////////////////////////////////////////////////////////////////////////////////////
        const rapidjson::Value& mesh_data_vertex_array = mesh_data[VERTICES];
        auto mesh_data_vertex_array_size = mesh_data_vertex_array.Size();
        meshData->vertexSizeInFloat = mesh_data_vertex_array_size;
        for (rapidjson::SizeType i = 0; i < mesh_data_vertex_array_size; ++i)
        {
            meshData->vertex.push_back(mesh_data_vertex_array[i].GetDouble());
        }
        // mesh part
        ////////////////////////////////////////////////////////////////////////////////////////////////
        const rapidjson::Value& mesh_part_array = mesh_data[PARTS];
        for (rapidjson::SizeType i = 0, mesh_part_array_size = mesh_part_array.Size(); i < mesh_part_array_size; ++i)
        {
            std::vector<unsigned short>      indexArray;
            const rapidjson::Value& mesh_part = mesh_part_array[i];
            meshData->subMeshIds.push_back(mesh_part[ID].GetString());
            // index_number
            const rapidjson::Value& indices_val_array = mesh_part[INDICES];
            for (rapidjson::SizeType j = 0, indices_val_array_size = indices_val_array.Size(); j < indices_val_array_size; ++j)
                indexArray.push_back((unsigned short)indices_val_array[j].GetUint());

            meshData->subMeshIndices.push_back(indexArray);
            meshData->numIndex = (int)meshData->subMeshIndices.size();

            if(mesh_data.HasMember(AABBS))
            {
                const rapidjson::Value& mesh_part_aabb = mesh_part[AABBS];
                if (mesh_part.HasMember(AABBS) && mesh_part_aabb.Size() == 6)
                {
                    Vec3 min(mesh_part_aabb[(rapidjson::SizeType)0].GetDouble(),
                             mesh_part_aabb[(rapidjson::SizeType)1].GetDouble(), mesh_part_aabb[(rapidjson::SizeType)2].GetDouble());
                    Vec3 max(mesh_part_aabb[(rapidjson::SizeType)3].GetDouble(),
                             mesh_part_aabb[(rapidjson::SizeType)4].GetDouble(), mesh_part_aabb[(rapidjson::SizeType)5].GetDouble());
                    meshData->subMeshAABB.push_back(AABB(min, max));
                }
                else
                {
                    meshData->subMeshAABB.push_back(calculateAABB(meshData->vertex, meshData->getPerVertexSize(), indexArray));
                }
            }
            else
            {
                meshData->subMeshAABB.push_back(calculateAABB(meshData->vertex, meshData->getPerVertexSize(), indexArray));
            }
           
        }
        meshdatas.meshDatas.push_back(meshData);
    }
    return true;
}
bool Bundle3D::loadNodes(NodeDatas& nodedatas)
{
    if (_version == "0.1" || _version == "1.2" || _version == "0.2")
    {
        SkinData   skinData;
        if (!loadSkinData("", &skinData))
        {
            auto node= new (std::nothrow) NodeData();
            auto modelnode = new (std::nothrow) ModelData();
            modelnode->materialId = "";
            modelnode->subMeshId = "";
            node->modelNodeDatas.push_back(modelnode);
            nodedatas.nodes.push_back(node);
            return true;
        }
        
        auto nodeDatas = new (std::nothrow) NodeData*[skinData.skinBoneNames.size() + skinData.nodeBoneNames.size()];
        int index = 0;
        size_t i;
        auto skinBoneSize = skinData.skinBoneNames.size();
        auto nodeBoneSize = skinData.nodeBoneNames.size();
        for (i = 0; i < skinBoneSize; ++i)
        {
            nodeDatas[index] = new (std::nothrow) NodeData();
            nodeDatas[index]->id = skinData.skinBoneNames[i];
            nodeDatas[index]->transform = skinData.skinBoneOriginMatrices[i];
            ++index;
        }
        for (i = 0; i < nodeBoneSize; ++i)
        {
            nodeDatas[index] = new (std::nothrow) NodeData();
            nodeDatas[index]->id = skinData.nodeBoneNames[i];
            nodeDatas[index]->transform = skinData.nodeBoneOriginMatrices[i];
            ++index;
        }
        for (const auto& it : skinData.boneChild)
        {
            const auto& children = it.second;
            auto parent = nodeDatas[it.first];
            for (const auto& child : children)
            {
                parent->children.push_back(nodeDatas[child]);
            }
        }
        nodedatas.skeleton.push_back(nodeDatas[skinData.rootBoneIndex]);
        auto node= new (std::nothrow) NodeData();
        auto modelnode = new (std::nothrow) ModelData();
        modelnode->materialId = "";
        modelnode->subMeshId = "";
        modelnode->bones = skinData.skinBoneNames;
        modelnode->invBindPose = skinData.inverseBindPoseMatrices;
        node->modelNodeDatas.push_back(modelnode);
        nodedatas.nodes.push_back(node);
        delete[] nodeDatas;
    }
    else
    {
        if (_isBinary)
        {
            loadNodesBinary(nodedatas);
        }
        else
        {
            loadNodesJson(nodedatas);
        }
    }
    return true;
}
bool Bundle3D::loadMaterials(MaterialDatas& materialdatas)
{
    materialdatas.resetData();
    if (_isBinary)
    {
        if (_version == "0.1")
        {
            return loadMaterialsBinary_0_1(materialdatas);
        }
        else if (_version == "0.2")
        {
            return loadMaterialsBinary_0_2(materialdatas);
        }
        else
        {
            return loadMaterialsBinary(materialdatas);
        } 
    }
    else
    {
        if (_version == "1.2")
        {
            return loadMaterialDataJson_0_1(materialdatas);
        }
        else if (_version == "0.2")
        {
            return loadMaterialDataJson_0_2(materialdatas);
        }
        else
        {
            return loadMaterialsJson(materialdatas);
        }  
    }
    return true;
}
bool Bundle3D::loadMaterialsBinary(MaterialDatas& materialdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MATERIAL))
        return false;
    unsigned int materialnum = 1;
    _binaryReader.read(&materialnum, 4, 1);
    for (unsigned int i = 0; i < materialnum; ++i)
    {
        NMaterialData materialData;
        materialData.id = _binaryReader.readString();
        
        // skip: diffuse(3), ambient(3), emissive(3), opacity(1), specular(3), shininess(1)
        float  data[14];
        _binaryReader.read(&data,sizeof(float), 14);
        
        unsigned int textureNum = 1;
        _binaryReader.read(&textureNum, 4, 1);
        for (unsigned int j = 0; j < textureNum; ++j)
        {
            NTextureData  textureData;
            textureData.id = _binaryReader.readString();
            if (textureData.id.empty())
            {
                CCLOG("warning: Failed to read Materialdata: texturePath is empty '%s'.", textureData.id.c_str());
                return false;
            }
            std::string texturePath = _binaryReader.readString();
            if (texturePath.empty())
            {
                CCLOG("warning: Failed to read Materialdata: texturePath is empty '%s'.", _path.c_str());
                return false;
            }

            textureData.filename = texturePath.empty() ? texturePath : _modelPath + texturePath;
            float  uvdata[4];
            _binaryReader.read(&uvdata,sizeof(float), 4);
            textureData.type  = parseGLTextureType(_binaryReader.readString());
            textureData.wrapS= parseGLType(_binaryReader.readString());
            textureData.wrapT= parseGLType(_binaryReader.readString());
            materialData.textures.push_back(textureData);
        }
        materialdatas.materials.push_back(materialData);
    }
    return true;
}
bool Bundle3D::loadMaterialsBinary_0_1(MaterialDatas& materialdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MATERIAL))
        return false;

    NMaterialData materialData;

    std::string texturePath = _binaryReader.readString();
    if (texturePath.empty())
    {
        CCLOG("warning: Failed to read Materialdata: texturePath is empty '%s'.", _path.c_str());
        return false;
    }

    NTextureData textureData;
    textureData.filename = texturePath.empty() ? texturePath : _modelPath + texturePath;
    textureData.type= NTextureData::Usage::Diffuse;
    textureData.id="";
    materialData.textures.push_back(textureData);
    materialdatas.materials.push_back(materialData);
    return true;
}

bool Bundle3D::loadMaterialsBinary_0_2(MaterialDatas& materialdatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_MATERIAL))
        return false;

    unsigned int materialnum = 1;
    _binaryReader.read(&materialnum, 4, 1);

    for (unsigned int i = 0; i < materialnum; ++i)
    {
        NMaterialData materialData;

        std::string texturePath = _binaryReader.readString();
        if (texturePath.empty())
        {
            CCLOG("warning: Failed to read Materialdata: texturePath is empty '%s'.", _path.c_str());
            return true;
        }

        NTextureData textureData;
        textureData.filename = texturePath.empty() ? texturePath : _modelPath + texturePath;
        textureData.type= NTextureData::Usage::Diffuse;
        textureData.id="";
        materialData.textures.push_back(textureData);
        materialdatas.materials.push_back(materialData);
    }
    return true;
}

bool loadMeshDataJson(MeshData* /*meshdata*/){
    return true;
}

bool loadMeshDataJson_0_1(MeshData* /*meshdata*/)
{
    return true;
}

bool loadMeshDataJson_0_2(MeshData* /*meshdata*/)
{
    return true;
}

bool  Bundle3D::loadMaterialsJson(MaterialDatas& materialdatas)
{
    if (!_jsonReader.HasMember(MATERIALS))
        return false;
    const rapidjson::Value& material_array = _jsonReader[MATERIALS];
    for (rapidjson::SizeType i = 0; i < material_array.Size(); ++i)
    {
        NMaterialData materialData;
        const rapidjson::Value& material_val = material_array[i];
        materialData.id = material_val[ID].GetString();
        if (material_val.HasMember(TEXTURES))
        {
            const rapidjson::Value& texture_array = material_val[TEXTURES];
            for (rapidjson::SizeType j = 0; j < texture_array.Size(); ++j)
            {
                NTextureData  textureData;
                const rapidjson::Value& texture_val = texture_array[j];
                std::string filename = texture_val[FILENAME].GetString();
                textureData.filename = filename.empty() ? filename : _modelPath + filename;
                textureData.type  = parseGLTextureType(texture_val["type"].GetString());
                textureData.wrapS = parseGLType(texture_val["wrapModeU"].GetString());
                textureData.wrapT = parseGLType(texture_val["wrapModeV"].GetString());
                materialData.textures.push_back(textureData);
            }
        }
        materialdatas.materials.push_back(materialData);
    }
    return true;
}
bool Bundle3D::loadJson(const std::string& path)
{
    clear();

    _jsonBuffer = FileUtils::getInstance()->getStringFromFile(path);

    if (_jsonReader.ParseInsitu<0>((char*)_jsonBuffer.c_str()).HasParseError())
    {
        clear();
        CCLOG("Parse json failed in Bundle3D::loadJson function");
        return false;
    }

    const rapidjson::Value& mash_data_array = _jsonReader[VERSION];
    if (mash_data_array.IsArray()) // Compatible with the old version
        _version = "1.2";
    else
        _version = mash_data_array.GetString();
    
    return true;
}


bool Bundle3D::loadBinary(const std::string& path)
{
    clear();
    
    // get file data
    _binaryBuffer.clear();
    _binaryBuffer = FileUtils::getInstance()->getDataFromFile(path);
    if (_binaryBuffer.isNull())
    {
        clear();
        CCLOG("warning: Failed to read file: %s", path.c_str());
        return false;
    }
    
    // Initialise bundle reader
    _binaryReader.init( (char*)_binaryBuffer.getBytes(),  _binaryBuffer.getSize() );
    
    // Read identifier info
    char identifier[] = { 'C', '3', 'B', '\0'};
    char sig[4];
    if (_binaryReader.read(sig, 1, 4) != 4 || memcmp(sig, identifier, 4) != 0)
    {
        clear();
        CCLOG("warning: Invalid identifier: %s", path.c_str());
        return false;
    }
    
    // Read version
    unsigned char ver[2];
    if (_binaryReader.read(ver, 1, 2)!= 2){
        CCLOG("warning: Failed to read version:");
        return false;
    }
    
    char version[20] = {0};
    sprintf(version, "%d.%d", ver[0], ver[1]);
    _version = version;
    
    // Read ref table size
    if (_binaryReader.read(&_referenceCount, 4, 1) != 1)
    {
        clear();
        CCLOG("warning: Failed to read ref table size '%s'.", path.c_str());
        return false;
    }
    
    // Read all refs
    CC_SAFE_DELETE_ARRAY(_references);
    _references = new (std::nothrow) Reference[_referenceCount];
    for (unsigned int i = 0; i < _referenceCount; ++i)
    {
        if ((_references[i].id = _binaryReader.readString()).empty() ||
            _binaryReader.read(&_references[i].type, 4, 1) != 1 ||
            _binaryReader.read(&_references[i].offset, 4, 1) != 1)
        {
            clear();
            CCLOG("warning: Failed to read ref number %u for bundle '%s'.", i, path.c_str());
            CC_SAFE_DELETE_ARRAY(_references);
            return false;
        }
    }
    
    return true;
}

bool Bundle3D::loadMeshDataJson_0_1(MeshDatas& meshdatas)
{
    const rapidjson::Value& mesh_data_array = _jsonReader[MESH];
    MeshData* meshdata= new (std::nothrow) MeshData();
    const rapidjson::Value& mesh_data_val = mesh_data_array[(rapidjson::SizeType)0];

    const rapidjson::Value& mesh_data_body_array = mesh_data_val[DEFAULTPART];

    const rapidjson::Value& mesh_data_body_array_0 = mesh_data_body_array[(rapidjson::SizeType)0];

    // mesh_vertex_attribute
    const rapidjson::Value& mesh_vertex_attribute = mesh_data_val[ATTRIBUTES];
    meshdata->attribCount = mesh_vertex_attribute.Size();
    meshdata->attribs.resize(meshdata->attribCount);
    for (rapidjson::SizeType i = 0; i < mesh_vertex_attribute.Size(); ++i)
    {
        const rapidjson::Value& mesh_vertex_attribute_val = mesh_vertex_attribute[i];

        meshdata->attribs[i].size = mesh_vertex_attribute_val[ATTRIBUTESIZE].GetUint();
        meshdata->attribs[i].attribSizeBytes = meshdata->attribs[i].size * 4;
        meshdata->attribs[i].type = parseGLType(mesh_vertex_attribute_val[TYPE].GetString());
        meshdata->attribs[i].vertexAttrib = parseGLProgramAttribute(mesh_vertex_attribute_val[ATTRIBUTE].GetString());
    }

    // vertices
    meshdata->vertexSizeInFloat = mesh_data_body_array_0[VERTEXSIZE].GetInt();
    meshdata->vertex.resize(meshdata->vertexSizeInFloat);

    const rapidjson::Value& mesh_data_body_vertices = mesh_data_body_array_0[VERTICES];
    for (rapidjson::SizeType i = 0; i < mesh_data_body_vertices.Size(); ++i)
        meshdata->vertex[i] = mesh_data_body_vertices[i].GetDouble();

    // index_number
    unsigned int indexnum = mesh_data_body_array_0[INDEXNUM].GetUint();

    // indices
    std::vector<unsigned short> indices;
    indices.resize(indexnum);

    const rapidjson::Value& indices_val_array = mesh_data_body_array_0[INDICES];
    for (rapidjson::SizeType i = 0; i < indices_val_array.Size(); ++i)
        indices[i] = (unsigned short)indices_val_array[i].GetUint();

    meshdata->subMeshIndices.push_back(indices);
    meshdata->subMeshAABB.push_back(calculateAABB(meshdata->vertex, meshdata->getPerVertexSize(), indices));
    meshdatas.meshDatas.push_back(meshdata);
    return true;
}

bool Bundle3D::loadMeshDataJson_0_2(MeshDatas& meshdatas)
{
    MeshData* meshdata= new (std::nothrow) MeshData();
    const rapidjson::Value& mesh_array = _jsonReader[MESH];
    const rapidjson::Value& mesh_array_0 = mesh_array[(rapidjson::SizeType)0];

    // mesh_vertex_attribute
    const rapidjson::Value& mesh_vertex_attribute = mesh_array_0[ATTRIBUTES];
    meshdata->attribCount = mesh_vertex_attribute.Size();
    meshdata->attribs.resize(meshdata->attribCount);
    for (rapidjson::SizeType i = 0; i < mesh_vertex_attribute.Size(); ++i)
    {
        const rapidjson::Value& mesh_vertex_attribute_val = mesh_vertex_attribute[i];

        meshdata->attribs[i].size = mesh_vertex_attribute_val[ATTRIBUTESIZE].GetUint();
        meshdata->attribs[i].attribSizeBytes = meshdata->attribs[i].size * 4;
        meshdata->attribs[i].type = parseGLType(mesh_vertex_attribute_val[TYPE].GetString());
        meshdata->attribs[i].vertexAttrib = parseGLProgramAttribute(mesh_vertex_attribute_val[ATTRIBUTE].GetString());
    }

    // vertices
    const rapidjson::Value& mesh_data_vertex = mesh_array_0[VERTEX];
    const rapidjson::Value& mesh_data_vertex_0 = mesh_data_vertex[(rapidjson::SizeType)0];

    meshdata->vertexSizeInFloat = mesh_data_vertex_0[VERTEXSIZE].GetInt();
    meshdata->vertex.resize(meshdata->vertexSizeInFloat);

    const rapidjson::Value& mesh_data_body_vertices = mesh_data_vertex_0[VERTICES];
    for (rapidjson::SizeType i = 0; i < mesh_data_body_vertices.Size(); ++i)
        meshdata->vertex[i] = mesh_data_body_vertices[i].GetDouble();

    // submesh
    const rapidjson::Value& mesh_submesh_array = mesh_array_0[SUBMESH];
    for (rapidjson::SizeType i = 0; i < mesh_submesh_array.Size(); ++i)
    {
        const rapidjson::Value& mesh_submesh_val = mesh_submesh_array[i];
        //std::string id = mesh_submesh_val[ID].GetString();

        // index_number
        unsigned int indexnum = mesh_submesh_val[INDEXNUM].GetUint();

        // indices
        std::vector<unsigned short> indices;
        indices.resize(indexnum);

        const rapidjson::Value& indices_val_array = mesh_submesh_val[INDICES];
        for (rapidjson::SizeType j = 0; j < indices_val_array.Size(); ++j)
            indices[j] = (unsigned short)indices_val_array[j].GetUint();

        meshdata->subMeshIndices.push_back(indices);
        meshdata->subMeshAABB.push_back(calculateAABB(meshdata->vertex, meshdata->getPerVertexSize(), indices));
    }
    meshdatas.meshDatas.push_back(meshdata);
    return true;
}

bool Bundle3D::loadSkinDataJson(SkinData* skindata)
{
    if (!_jsonReader.HasMember(SKIN )) return false;

    const rapidjson::Value& skin_data_array = _jsonReader[SKIN ];

    CCASSERT(skin_data_array.IsArray(), "skin data is not an array");
    const rapidjson::Value& skin_data_array_val_0 = skin_data_array[(rapidjson::SizeType)0];

    if (!skin_data_array_val_0.HasMember(BONES))
        return false;

    const rapidjson::Value& skin_data_bones = skin_data_array_val_0[BONES];
    for (rapidjson::SizeType i = 0; i < skin_data_bones.Size(); ++i)
    {
        const rapidjson::Value& skin_data_bone = skin_data_bones[i];
        std::string name = skin_data_bone[NODE].GetString();
        skindata->addSkinBoneNames(name);

        Mat4 mat_bind_pos;
        const rapidjson::Value& bind_pos = skin_data_bone[BINDSHAPE];
        for (rapidjson::SizeType j = 0; j < bind_pos.Size(); ++j)
        {
            mat_bind_pos.m[j] = bind_pos[j].GetDouble();
        }
        skindata->inverseBindPoseMatrices.push_back(mat_bind_pos);
    }

    // set root bone information
    const rapidjson::Value& skin_data_1 = skin_data_array[1];

    // parent and child relationship map
    skindata->skinBoneOriginMatrices.resize(skindata->skinBoneNames.size());
    getChildMap(skindata->boneChild, skindata, skin_data_1);
    return true;
}


bool Bundle3D::loadSkinDataBinary(SkinData* skindata)
{
    if (!seekToFirstType(BUNDLE_TYPE_MESHSKIN))
        return false;
    
    std::string boneName = _binaryReader.readString();
    
    // transform
    float bindShape[16];
    if (!_binaryReader.readMatrix(bindShape))
    {
        CCLOG("warning: Failed to read SkinData: bindShape matrix  '%s'.", _path.c_str());
        return false;
    }
    
    // bone count
    unsigned int boneNum;
    if (!_binaryReader.read(&boneNum))
    {
        CCLOG("warning: Failed to read SkinData: boneNum  '%s'.", _path.c_str());
        return false;
    }
    
    // Fix bug: check if the bone number is 0.
    if (boneNum == 0)
        return false;
    
    // bone names and bind pos
    float bindpos[16];
    for (unsigned int i = 0; i < boneNum; ++i)
    {
        std::string skinBoneName = _binaryReader.readString();
        skindata->skinBoneNames.push_back(skinBoneName);
        if (!_binaryReader.readMatrix(bindpos))
        {
            CCLOG("warning: Failed to load SkinData: bindpos '%s'.", _path.c_str());
            return false;
        }
        skindata->inverseBindPoseMatrices.push_back(bindpos);
    }
    
    skindata->skinBoneOriginMatrices.resize(boneNum);
    
    boneName = _binaryReader.readString();
    
    // bind shape
    _binaryReader.readMatrix(bindShape);
    int rootIndex = skindata->getSkinBoneNameIndex(boneName);
    if(rootIndex < 0)
    {
        skindata->addNodeBoneNames(boneName);
        rootIndex = skindata->getBoneNameIndex(boneName);
        skindata->nodeBoneOriginMatrices.push_back(bindShape);
    }
    else
    {
        skindata->skinBoneOriginMatrices[rootIndex] = bindShape;
    }
    
    // set root bone index
    skindata->rootBoneIndex = rootIndex;
    
    // read parent and child relationship map
    float transform[16];
    unsigned int linkNum;
    _binaryReader.read(&linkNum);
    for (unsigned int i = 0; i < linkNum; ++i)
    {
        std::string id = _binaryReader.readString();
        int index = skindata->getSkinBoneNameIndex(id);
        
        
        std::string parentid = _binaryReader.readString();
        
        if (!_binaryReader.readMatrix(transform))
        {
            CCLOG("warning: Failed to load SkinData: transform '%s'.", _path.c_str());
            return false;
        }
        
        if(index < 0)
        {
            skindata->addNodeBoneNames(id);
            index = skindata->getBoneNameIndex(id);
            skindata->nodeBoneOriginMatrices.push_back(transform);
        }
        else
        {
            skindata->skinBoneOriginMatrices[index] = transform;
        }
        
        int parentIndex = skindata->getSkinBoneNameIndex(parentid);
        if(parentIndex < 0)
        {
            skindata->addNodeBoneNames(parentid);
            parentIndex = skindata->getBoneNameIndex(parentid);
        }
        
        skindata->boneChild[parentIndex].push_back(index);
        
    }
    
    return true;
}

bool Bundle3D::loadMaterialDataJson_0_1(MaterialDatas& materialdatas)
{
    if (!_jsonReader.HasMember(MATERIAL))
        return false;
    NMaterialData materialData;
    const rapidjson::Value& material_data_array = _jsonReader[MATERIAL];

    if (material_data_array.Size() > 0)
    {
        const rapidjson::Value& material_data_array_0 = material_data_array[(rapidjson::SizeType)0];
        if (material_data_array_0.HasMember(BASE))
        {
            const rapidjson::Value& material_data_base_array = material_data_array_0[BASE];
            const rapidjson::Value& material_data_base_array_0 = material_data_base_array[(rapidjson::SizeType)0];
            NTextureData  textureData;
            // set texture
            std::string filename = material_data_base_array_0[FILENAME].GetString();
            textureData.filename = filename.empty() ? filename : _modelPath + filename;
            textureData.type= NTextureData::Usage::Diffuse;
            textureData.id="";
            materialData.textures.push_back(textureData);
            materialdatas.materials.push_back(materialData);
        }
    }
    
    return true;
}

bool Bundle3D::loadMaterialDataJson_0_2(MaterialDatas& materialdatas)
{
    if (!_jsonReader.HasMember(MATERIAL))
        return false;
    NMaterialData materialData;
    const rapidjson::Value& material_array = _jsonReader[MATERIAL];

    for (rapidjson::SizeType i = 0; i < material_array.Size(); ++i)
    {
        NTextureData  textureData;
        const rapidjson::Value& material_val = material_array[i];

        // set texture
        std::string filename = material_val[TEXTURES].GetString();
        textureData.filename = filename.empty() ? filename : _modelPath + filename;
        textureData.type= NTextureData::Usage::Diffuse;
        textureData.id="";
        materialData.textures.push_back(textureData);
    }
    materialdatas.materials.push_back(materialData);
    return true;
}

bool loadMaterialDataJson(MaterialData* /*materialdata*/)
{
    return true;
}

bool loadMaterialDataJson_0_1(MaterialData* /*materialdata*/){
    return true;
}

bool loadMaterialDataJson_0_2(MaterialData* /*materialdata*/){
    return true;
}

bool Bundle3D::loadAnimationDataJson(const std::string& id, Animation3DData* animationdata)
{
    std::string anim = "";
    if (_version == "1.2" || _version == "0.2")
        anim = ANIMATION;
    else
        anim = ANIMATIONS;

    if (!_jsonReader.HasMember(anim.c_str())) return false;
    int the_index = -1;
    const rapidjson::Value& animation_data_array = _jsonReader[anim.c_str()];

    if (animation_data_array.Size()==0) return false;

    if(!id.empty())
    {
        for (rapidjson::SizeType i = 0; i < animation_data_array.Size(); ++i)
        {
            if(animation_data_array[i][ID].GetString() == id)
            {
                the_index = static_cast<int>(i);
            }
        }
        if(the_index < 0) return false;
    }else{
        the_index = 0;
    }

    const rapidjson::Value& animation_data_array_val_0 = animation_data_array[(rapidjson::SizeType)the_index];

    animationdata->_totalTime = animation_data_array_val_0[LENGTH].GetDouble();

    const rapidjson::Value&  bones =  animation_data_array_val_0[BONES];
    for (rapidjson::SizeType i = 0; i <  bones.Size(); ++i)
    {
        const rapidjson::Value&  bone =  bones[i];
        std::string bone_name =  bone[BONEID].GetString();

        if ( bone.HasMember(KEYFRAMES))
        {
            const rapidjson::Value& bone_keyframes =  bone[KEYFRAMES];
            rapidjson::SizeType keyframe_size = bone_keyframes.Size();
            animationdata->_rotationKeys[bone_name].reserve(keyframe_size);
            animationdata->_scaleKeys[bone_name].reserve(keyframe_size);
            animationdata->_translationKeys[bone_name].reserve(keyframe_size);
            
            for (rapidjson::SizeType j = 0; j < keyframe_size; ++j)
            {
                const rapidjson::Value&  bone_keyframe =  bone_keyframes[j];

                if ( bone_keyframe.HasMember(TRANSLATION))
                {
                    const rapidjson::Value&  bone_keyframe_translation =  bone_keyframe[TRANSLATION];
                    float keytime =  bone_keyframe[KEYTIME].GetDouble();
                    Vec3 val(bone_keyframe_translation[(rapidjson::SizeType)0].GetDouble(), bone_keyframe_translation[1].GetDouble(), bone_keyframe_translation[2].GetDouble());
                    animationdata->_translationKeys[bone_name].push_back(Animation3DData::Vec3Key(keytime,val));
                }

                if ( bone_keyframe.HasMember(ROTATION))
                {
                    const rapidjson::Value&  bone_keyframe_rotation =  bone_keyframe[ROTATION];
                    float keytime =  bone_keyframe[KEYTIME].GetDouble();
                    Quaternion val = Quaternion(bone_keyframe_rotation[(rapidjson::SizeType)0].GetDouble(),bone_keyframe_rotation[1].GetDouble(),bone_keyframe_rotation[2].GetDouble(),bone_keyframe_rotation[3].GetDouble());
                    animationdata->_rotationKeys[bone_name].push_back(Animation3DData::QuatKey(keytime,val));
                }

                if ( bone_keyframe.HasMember(SCALE))
                {
                    const rapidjson::Value&  bone_keyframe_scale =  bone_keyframe[SCALE];
                    float keytime =  bone_keyframe[KEYTIME].GetDouble();
                    Vec3 val(bone_keyframe_scale[(rapidjson::SizeType)0].GetDouble(), bone_keyframe_scale[1].GetDouble(), bone_keyframe_scale[2].GetDouble());
                    animationdata->_scaleKeys[bone_name].push_back(Animation3DData::Vec3Key(keytime,val));
                }
            }
        }
    }

    return true;
}

bool Bundle3D::loadAnimationDataBinary(const std::string& id, Animation3DData* animationdata)
{
 
    if( _version == "0.1"|| _version == "0.2" || _version == "0.3"|| _version == "0.4")
    {
        if (!seekToFirstType(BUNDLE_TYPE_ANIMATIONS))
            return false;
    }
    else
    {
        // if id is not a null string, we need to add a suffix of "animation" for seeding.
        std::string id_ = id;
        if(id != "") id_ = id + "animation";
        
        if (!seekToFirstType(BUNDLE_TYPE_ANIMATIONS, id_))
            return false;
    }
    
    unsigned int animNum = 1;
    if( _version == "0.3"|| _version == "0.4")
    {
        if (!_binaryReader.read(&animNum))
        {
            CCLOG("warning: Failed to read AnimationData: animNum '%s'.", _path.c_str());
            return false;
        }
    }
    
    bool has_found =false;
    for(unsigned int k = 0; k < animNum ; ++k )
    {
        animationdata->resetData();
        std::string animId = _binaryReader.readString();

        if (!_binaryReader.read(&animationdata->_totalTime))
        {
            CCLOG("warning: Failed to read AnimationData: totalTime '%s'.", _path.c_str());
            return false;
        }

        unsigned int nodeAnimationNum;
        if (!_binaryReader.read(&nodeAnimationNum))
        {
            CCLOG("warning: Failed to read AnimationData: animNum '%s'.", _path.c_str());
            return false;
        }
        for (unsigned int i = 0; i < nodeAnimationNum; ++i)
        {
            std::string boneName = _binaryReader.readString();
            unsigned int keyframeNum;
            if (!_binaryReader.read(&keyframeNum))
            {
                CCLOG("warning: Failed to read AnimationData: keyframeNum '%s'.", _path.c_str());
                return false;
            }

            animationdata->_rotationKeys[boneName].reserve(keyframeNum);
            animationdata->_scaleKeys[boneName].reserve(keyframeNum);
            animationdata->_translationKeys[boneName].reserve(keyframeNum);

            for (unsigned int j = 0; j < keyframeNum; ++j)
            {
                float keytime;
                if (!_binaryReader.read(&keytime))
                {
                    CCLOG("warning: Failed to read AnimationData: keytime '%s'.", _path.c_str());
                    return false;
                }

                // transform flag
                unsigned char transformFlag(0);
                if (_version != "0.1" && _version != "0.2" && _version != "0.3")
                {
                    if (!_binaryReader.read(&transformFlag))
                    {
                        CCLOG("warning: Failed to read AnimationData: transformFlag '%s'.", _path.c_str());
                        return false;
                    }
                }

                // rotation
                bool hasRotate = true;
                if (_version != "0.1" && _version != "0.2" && _version != "0.3")
                    hasRotate = transformFlag & 0x01;

                if (hasRotate)
                {
                    Quaternion  rotate;
                    if (_binaryReader.read(&rotate, 4, 4) != 4)
                    {
                        CCLOG("warning: Failed to read AnimationData: rotate '%s'.", _path.c_str());
                        return false;
                    }
                    animationdata->_rotationKeys[boneName].push_back(Animation3DData::QuatKey(keytime, rotate));
                }

                // scale
                bool hasScale = true;
                if (_version != "0.1" && _version != "0.2" && _version != "0.3")
                    hasScale = (transformFlag >> 1) & 0x01;

                if (hasScale)
                {
                    Vec3 scale;
                    if (_binaryReader.read(&scale, 4, 3) != 3)
                    {
                        CCLOG("warning: Failed to read AnimationData: scale '%s'.", _path.c_str());
                        return false;
                    }
                    animationdata->_scaleKeys[boneName].push_back(Animation3DData::Vec3Key(keytime, scale));
                }

                // translation
                bool hasTranslation = true;
                if (_version != "0.1" && _version != "0.2" && _version != "0.3")
                    hasTranslation = (transformFlag >> 2) & 0x01;

                if (hasTranslation)
                {
                    Vec3 position;
                    if (_binaryReader.read(&position, 4, 3) != 3)
                    {
                        CCLOG("warning: Failed to read AnimationData: position '%s'.", _path.c_str());
                        return false;
                    }
                    animationdata->_translationKeys[boneName].push_back(Animation3DData::Vec3Key(keytime, position));
                }
            }

        }
        if( id == animId || id.empty())
        {
            has_found = true;
            break;
        }       
    }
    if(!has_found)
    {
        animationdata->resetData();
        return false;
    }
    return true;
}


bool Bundle3D::loadNodesJson(NodeDatas& nodedatas)
{
    if (!_jsonReader.HasMember(NODES)) return false;
    const rapidjson::Value& nodes = _jsonReader[NODES];
    if(!nodes.IsArray()) return false;

    // traverse the nodes again
    for (rapidjson::SizeType i = 0; i < nodes.Size(); ++i)
    {
        const rapidjson::Value& jnode = nodes[i];
        std::string id = jnode[ID].GetString();
        NodeData* nodedata = parseNodesRecursivelyJson(jnode, nodes.Size() == 1);

        bool isSkeleton = jnode[SKELETON].GetBool();
        if (isSkeleton)
            nodedatas.skeleton.push_back(nodedata);
        else
            nodedatas.nodes.push_back(nodedata);
    }
    return true;
}
NodeData* Bundle3D::parseNodesRecursivelyJson(const rapidjson::Value& jvalue, bool singleSprite)
{
    NodeData* nodedata = new (std::nothrow) NodeData();
    // id
    nodedata->id = jvalue[ID].GetString();

    // transform
    Mat4 transform;
    const rapidjson::Value& jtransform = jvalue[TRANSFORM];

    for (rapidjson::SizeType j = 0; j < jtransform.Size(); ++j)
    {
        transform.m[j] = jtransform[j].GetDouble();
    }

    nodedata->transform = transform;

    bool isSkin = false;
    
    // parts
    if (jvalue.HasMember(PARTS))
    {
        const rapidjson::Value& parts = jvalue[PARTS];
       

        for (rapidjson::SizeType i = 0; i < parts.Size(); ++i)
        {
            auto modelnodedata = new (std::nothrow) ModelData();
            const rapidjson::Value& part = parts[i];
            modelnodedata->subMeshId = part[MESHPARTID].GetString();
            modelnodedata->materialId = part[MATERIALID].GetString();

            if (modelnodedata->subMeshId == "" || modelnodedata->materialId == "")
            {
                CCLOG("warning: Node %s part is missing meshPartId or materialId", nodedata->id.c_str());
                CC_SAFE_DELETE(modelnodedata);
                CC_SAFE_DELETE(nodedata);
                return nullptr;
            }

            if (part.HasMember(BONES))
            {
                const rapidjson::Value& bones = part[BONES];

                for (rapidjson::SizeType j = 0; j < bones.Size(); ++j)
                {
                    const rapidjson::Value& bone = bones[j];

                    // node
                    if (!bone.HasMember(NODE))
                    {
                        CCLOG("warning: Bone node ID missing");
                        CC_SAFE_DELETE(modelnodedata);
                        CC_SAFE_DELETE(nodedata);
                        return nullptr;
                    }

                    modelnodedata->bones.push_back(bone[NODE].GetString());

                    Mat4 invbindpos;
                    const rapidjson::Value& jinvbindpos = bone[TRANSFORM];

                    for (rapidjson::SizeType k = 0; k < jinvbindpos.Size(); ++k)
                    {
                        invbindpos.m[k] = jinvbindpos[k].GetDouble();
                    }

                    //invbindpos.inverse();
                    modelnodedata->invBindPose.push_back(invbindpos);
                }
                
                if (bones.Size() > 0)
                    isSkin = true;
            }
             nodedata->modelNodeDatas.push_back(modelnodedata);
        }
    }

    // set transform
    if(_version == "0.1" || _version == "0.2" || _version == "0.3" || _version == "0.4" || _version == "0.5" || _version == "0.6")
    {
       if(isSkin || singleSprite)
       {
           nodedata->transform = Mat4::IDENTITY;
       }
       else
       {
           nodedata->transform = transform;
       }
    }
    else
    {
       nodedata->transform = transform;
    }
    
    if (jvalue.HasMember(CHILDREN))
    {
        const rapidjson::Value& children = jvalue[CHILDREN];
        for (rapidjson::SizeType i = 0; i <  children.Size(); ++i)
        {
            const rapidjson::Value& child = children[i];

            NodeData* tempdata = parseNodesRecursivelyJson(child, singleSprite);
            nodedata->children.push_back(tempdata);
        }
    }
    return nodedata;
}

bool Bundle3D::loadNodesBinary(NodeDatas& nodedatas)
{
    if (!seekToFirstType(BUNDLE_TYPE_NODE))
        return false;

    unsigned int nodeSize = 0;
    if (_binaryReader.read(&nodeSize, 4, 1) != 1)
    {
        CCLOG("warning: Failed to read nodes");
        return false;
    }

    // traverse the nodes again
    for (rapidjson::SizeType i = 0; i < nodeSize; ++i)
    {
        bool skeleton = false;
        NodeData* nodedata = parseNodesRecursivelyBinary(skeleton, nodeSize == 1);

        if (skeleton)
            nodedatas.skeleton.push_back(nodedata);
        else
            nodedatas.nodes.push_back(nodedata);
    }
    return true;
}
NodeData* Bundle3D::parseNodesRecursivelyBinary(bool& skeleton, bool singleSprite)
{
    // id
    std::string id = _binaryReader.readString();
    // is skeleton
    bool skeleton_;
    if (_binaryReader.read(&skeleton_, 1, 1) != 1)
    {
        CCLOG("warning: Failed to read is skeleton");
        return nullptr;
    }
    if (skeleton_)
        skeleton = true;
    
    // transform
    Mat4 transform;
    if (!_binaryReader.readMatrix(transform.m))
    {
        CCLOG("warning: Failed to read transform matrix");
        return nullptr;
    }
    // parts
    unsigned int partsSize = 0;
    if (_binaryReader.read(&partsSize, 4, 1) != 1)
    {
        CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
        return nullptr;
    }

    NodeData* nodedata = new (std::nothrow) NodeData();
    nodedata->id = id;
    
    bool isSkin = false;
    
    if (partsSize > 0)
    {
        for (unsigned int i = 0; i < partsSize; ++i)
        {
            auto modelnodedata  = new (std::nothrow) ModelData();
            modelnodedata->subMeshId = _binaryReader.readString();
            modelnodedata->materialId = _binaryReader.readString();

            if (modelnodedata->subMeshId == "" || modelnodedata->materialId == "")
            {
                std::string err = "Node " + nodedata->id + " part is missing meshPartId or materialId";
                CCLOG("Node %s part is missing meshPartId or materialId", nodedata->id.c_str());
                CC_SAFE_DELETE(modelnodedata);
                CC_SAFE_DELETE(nodedata);
                return nullptr;
            }

            // read bone
            unsigned int bonesSize = 0;
            if (_binaryReader.read(&bonesSize, 4, 1) != 1)
            {
                CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
                CC_SAFE_DELETE(modelnodedata);
                CC_SAFE_DELETE(nodedata);
                return nullptr;
            }

            if (bonesSize > 0)
            {
                for (unsigned int j = 0; j < bonesSize; ++j)
                {
                    std::string name = _binaryReader.readString();
                    modelnodedata->bones.push_back(name);

                    Mat4 invbindpos;
                    if (!_binaryReader.readMatrix(invbindpos.m))
                    {
                        CC_SAFE_DELETE(modelnodedata);
                        CC_SAFE_DELETE(nodedata);
                        return nullptr;
                    }

                    modelnodedata->invBindPose.push_back(invbindpos);
                }
                isSkin = true;
            }
            unsigned int uvMapping = 0;
            if (_binaryReader.read(&uvMapping, 4, 1) != 1)
            {
                CCLOG("warning: Failed to read nodedata: uvMapping '%s'.", _path.c_str());
                CC_SAFE_DELETE(modelnodedata);
                CC_SAFE_DELETE(nodedata);
                return nullptr;
            }
            for(unsigned int j = 0; j < uvMapping; ++j)
            {
                unsigned int textureIndexSize=0;
                if (_binaryReader.read(&textureIndexSize, 4, 1) != 1)
                {
                    CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
                    CC_SAFE_DELETE(modelnodedata);
                    CC_SAFE_DELETE(nodedata);
                    return nullptr;
                }
                for(unsigned int k = 0; k < textureIndexSize; ++k)
                {
                    unsigned int index=0;
                    if (_binaryReader.read(&index, 4, 1) != 1)
                    {
                        CC_SAFE_DELETE(modelnodedata);
                        CC_SAFE_DELETE(nodedata);
                        return nullptr;
                    }
                }
            }
            nodedata->modelNodeDatas.push_back(modelnodedata);
        }
    }

    // set transform
   if(_version == "0.1" || _version == "0.2" || _version == "0.3" || _version == "0.4" || _version == "0.5" || _version == "0.6")
   {
       if(isSkin || singleSprite)
       {
           nodedata->transform = Mat4::IDENTITY;
       }
       else
       {
           nodedata->transform = transform;
       }
   }
   else
   {
       nodedata->transform = transform;
   }
    
    unsigned int childrenSize = 0;
    if (_binaryReader.read(&childrenSize, 4, 1) != 1)
    {
        CCLOG("warning: Failed to read meshdata: attribCount '%s'.", _path.c_str());
        CC_SAFE_DELETE(nodedata);
        return nullptr;
    }
    if (childrenSize > 0)
    {
        for (unsigned int i = 0; i <  childrenSize; ++i)
        {
            NodeData* tempdata = parseNodesRecursivelyBinary(skeleton, singleSprite);
            nodedata->children.push_back(tempdata);
        }
    }
    return nodedata;
}

GLenum Bundle3D::parseGLType(const std::string& str)
{
    if (str == "GL_BYTE")
    {
        return GL_BYTE;
    }
    else if(str == "GL_UNSIGNED_BYTE")
    {
        return GL_UNSIGNED_BYTE;
    }
    else if(str == "GL_SHORT")
    {
        return GL_SHORT;
    }
    else if(str == "GL_UNSIGNED_SHORT")
    {
        return GL_UNSIGNED_SHORT;
    }
    else if(str == "GL_INT")
    {
        return GL_INT;
    }
    else if (str == "GL_UNSIGNED_INT")
    {
        return GL_UNSIGNED_INT;
    }
    else if (str == "GL_FLOAT")
    {
        return GL_FLOAT;
    }
    else if (str == "REPEAT")
    {
        return GL_REPEAT;
    }
    else if (str == "CLAMP")
    {
        return GL_CLAMP_TO_EDGE;
    }
    else
    {
        CCASSERT(false, "Invalid GL type");
        return 0;
    }
}
NTextureData::Usage Bundle3D::parseGLTextureType(const std::string& str)
{
    if (str == "AMBIENT")
    {
        return NTextureData::Usage::Ambient;
    }
    else if(str == "BUMP")
    {
        return NTextureData::Usage::Bump;
    }
    else if(str == "DIFFUSE")
    {
        return NTextureData::Usage::Diffuse;
    }
    else if(str == "EMISSIVE")
    {
        return NTextureData::Usage::Emissive;
    }
    else if(str == "NONE")
    {
        return NTextureData::Usage::None;
    }
    else if (str == "NORMAL")
    {
        return NTextureData::Usage::Normal;
    }
    else if (str == "REFLECTION")
    {
        return NTextureData::Usage::Reflection;
    }
    else if (str == "SHININESS")
    {
        return NTextureData::Usage::Shininess;
    }
    else if (str == "SPECULAR")
    {
        return NTextureData::Usage::Specular;
    }
    else if (str == "TRANSPARENCY")
    {
        return NTextureData::Usage::Transparency;
    }
    else
    {
        CCASSERT(false, "Wrong Texture type");
        return NTextureData::Usage::Unknown;
    }
}
unsigned int Bundle3D::parseGLProgramAttribute(const std::string& str)
{
    if (str == "VERTEX_ATTRIB_POSITION")
    {
        return GLProgram::VERTEX_ATTRIB_POSITION;
    }
    else if (str == "VERTEX_ATTRIB_COLOR")
    {
        return GLProgram::VERTEX_ATTRIB_COLOR;
    }
    else if (str == "VERTEX_ATTRIB_TEX_COORD")
    {
        return GLProgram::VERTEX_ATTRIB_TEX_COORD;
    }
    else if (str == "VERTEX_ATTRIB_TEX_COORD1")
    {
        return GLProgram::VERTEX_ATTRIB_TEX_COORD1;
    }
    else if (str == "VERTEX_ATTRIB_TEX_COORD2")
    {
        return GLProgram::VERTEX_ATTRIB_TEX_COORD2;
    }
    else if (str == "VERTEX_ATTRIB_TEX_COORD3")
    {
        return GLProgram::VERTEX_ATTRIB_TEX_COORD3;
    }
    //comment out them
//    else if (str == "VERTEX_ATTRIB_TEX_COORD4")
//    {
//        return GLProgram::VERTEX_ATTRIB_TEX_COORD4;
//    }
//    else if (str == "VERTEX_ATTRIB_TEX_COORD5")
//    {
//        return GLProgram::VERTEX_ATTRIB_TEX_COORD5;
//    }
//    else if (str == "VERTEX_ATTRIB_TEX_COORD6")
//    {
//        return GLProgram::VERTEX_ATTRIB_TEX_COORD6;
//    }
//    else if (str == "VERTEX_ATTRIB_TEX_COORD7")
//    {
//        return GLProgram::VERTEX_ATTRIB_TEX_COORD7;
//    }
    else if (str == "VERTEX_ATTRIB_NORMAL")
    {
        return GLProgram::VERTEX_ATTRIB_NORMAL;
    }
    else if (str == "VERTEX_ATTRIB_BLEND_WEIGHT")
    {
        return GLProgram::VERTEX_ATTRIB_BLEND_WEIGHT;
    }
    else if (str == "VERTEX_ATTRIB_BLEND_INDEX")
    {
        return GLProgram::VERTEX_ATTRIB_BLEND_INDEX;
    }
    else if (str == "VERTEX_ATTRIB_TANGENT")
    {
        return GLProgram::VERTEX_ATTRIB_TANGENT;
    }
    else if (str == "VERTEX_ATTRIB_BINORMAL")
    {
        return GLProgram::VERTEX_ATTRIB_BINORMAL;
    }
    else
    {
        CCASSERT(false, "Wrong Attribute type");
        return -1;
    }
}

void Bundle3D::getModelRelativePath(const std::string& path)
{
    ssize_t index = path.find_last_of('/');
    std::string fullModelPath;
    _modelPath = path.substr(0, index + 1);
}

Reference* Bundle3D::seekToFirstType(unsigned int type, const std::string& id)
{
    // for each Reference
    for (unsigned int i = 0; i < _referenceCount; ++i)
    {
        Reference* ref = &_references[i];
        if (ref->type == type)
        {
            // if id is not a null string, we also need to check the Reference's id.
            if (id != "" && id != ref->id)
            {
                continue;
            }
            
            // Found a match
            if (_binaryReader.seek(ref->offset, SEEK_SET) == false)
            {
                CCLOG("warning: Failed to seek to object '%s' in bundle '%s'.", ref->id.c_str(), _path.c_str());
                return nullptr;
            }
            return ref;
        }
    }
    return nullptr;
}

std::vector<Vec3> Bundle3D::getTrianglesList(const std::string& path)
{
    std::vector<Vec3> trianglesList;
    
    if (path.length() <= 4)
        return trianglesList;
    
    auto bundle = Bundle3D::createBundle();
    std::string ext = FileUtils::getInstance()->getFileExtension(path);
    MeshDatas meshs;
    if (ext == ".obj")
    {
        MaterialDatas materials;
        NodeDatas nodes;
        if (!Bundle3D::loadObj(meshs, materials, nodes, path))
        {
            Bundle3D::destroyBundle(bundle);
            return trianglesList;
        }
    }
    else
    {
        if (!bundle->load(path))
        {
            Bundle3D::destroyBundle(bundle);
            return trianglesList;
        }
        
        bundle->loadMeshDatas(meshs);
        
    }
    
    Bundle3D::destroyBundle(bundle);
    for (auto iter : meshs.meshDatas){
        int preVertexSize = iter->getPerVertexSize() / sizeof(float);
        for (auto indexArray : iter->subMeshIndices){
            for (auto i : indexArray){
                trianglesList.push_back(Vec3(iter->vertex[i * preVertexSize], iter->vertex[i * preVertexSize + 1], iter->vertex[i * preVertexSize + 2]));
            }
        }
    }
    
    return trianglesList;
}

Bundle3D::Bundle3D()
: _modelPath(""),
_path(""),
_version(""),
_referenceCount(0),
_references(nullptr),
_isBinary(false)
{

}
Bundle3D::~Bundle3D()
{
    clear();

}

cocos2d::AABB Bundle3D::calculateAABB( const std::vector<float>& vertex, int stride, const std::vector<unsigned short>& index )
{
    AABB aabb;
    stride /= 4;
    for (const auto& it : index)
    {
        Vec3 point(vertex[it * stride], vertex[it * stride + 1], vertex[it * stride + 2]);
        aabb.updateMinMax(&point, 1);
    }
    return aabb;
}

NS_CC_END