关于vector存储结构体的问题

闪亮的马路

结构体定义如下：
struct GridNode
{     
    int id;        
    Eigen::Vector3d coord;
    Eigen::Vector3i dir;   // direction of expanding
    Eigen::Vector3i index;
       
    double gScore, fScore;
    GridNodePtr cameFrom;
    std::multimap<double, GridNodePtr>::iterator nodeMapIt;

    GridNode(Eigen::Vector3i _index, Eigen::Vector3d _coord){  
                id = 0;
                index = _index;
                coord = _coord;
                dir   = Eigen::Vector3i::Zero();

                gScore = inf;
                fScore = inf;
                cameFrom = NULL;
    }

    GridNode(const GridNode& g);
    GridNode(){};
    ~GridNode(){};
};
存储函数部分如下：
inline void AstarPathFinder::AstarGetSucc(GridNodePtr currentPtr, vector<GridNodePtr> & neighborPtrSets, vector<double> & edgeCostSets)
{   
    neighborPtrSets.clear();
    edgeCostSets.clear();

   Vector3i  init_index(0,0,0);
   Vector3d  init_coord(0,0,0);
   GridNodePtr  neighborPtrSet = new GridNode(init_index, init_coord);
  

   if (heuristic_type =="Manhattan")
   {
       //x-1
       if(isFree(currentPtr->index[0]-1,currentPtr->index[1],currentPtr->index[2]) &&
         !isOccupied(currentPtr->index[0]-1,currentPtr->index[1],currentPtr->index[2]))
       {
                       
           neighborPtrSet->id = 0;
           neighborPtrSet->index = currentPtr->index;
           neighborPtrSet->index[0] = currentPtr->index[0]-1;
           neighborPtrSet->coord = gridIndex2coord( neighborPtrSet->index);
           neighborPtrSet->dir = currentPtr->dir;
           neighborPtrSets.push_back(neighborPtrSet);
           edgeCostSets.push_back(1);
       }
       //x+1
       if(isFree(currentPtr->index[0]+1,currentPtr->index[1],currentPtr->index[2]) &&
         !isOccupied(currentPtr->index[0]+1,currentPtr->index[1],currentPtr->index[2]))
       {
                       

           neighborPtrSet->id = 0;
           neighborPtrSet->index = currentPtr->index;
           neighborPtrSet->index[0] = currentPtr->index[0]+1;
           neighborPtrSet->coord = gridIndex2coord( neighborPtrSet->index);
           neighborPtrSet->dir = currentPtr->dir;
           neighborPtrSets.push_back(neighborPtrSet);
           edgeCostSets.push_back(1);
       }

仿真发现neighborPtrSets存储的两个结构体共用了一个地址，数据也一样，该怎么修改呢？