调用默认复制构造函数时C ++程序崩溃

Question

我正在编写一个从XML文档中读取信息并构建地图对象的地图类。地图首先从XML文件中读取切片类型定义，并将其存储在地图中，通过其ID为每个切片的信息编制索引。之后，它会读取另一个包含地图横向信息（图块坐标等）的文件，并尝试填充图块数组。

这是这样的：

class TileInfo {
    //Information about tile stats, bitmaps, movement cost etc
};

class Tile {
     TileInfo* info;
     vector<TileInfo*> lastSeenByPlayer; //due to fow each player can be seeing different tiles since they haven't updated yet
     //other tile specific tile information like coordinates etc
public:
     Tile(int x, int y, TileInfo* info /*other parameters*/);
};

Tile::Tile(int x, int y, TileInfo* info /*...*/) {
     this->info = tileInfo;
     this->x = x;
     this->y = y;

     for(unsigned int i = 0; i < NUM_PLAYERS; i++)
          lastSeenByPlayer.push_back(info);
}

class GameMap {
     map<int,TileInfo> tileInformation;
     vector<vector<Tile>> tiles;

     Tile loadTile(int tileID, int x, int y);
     void loadTerrainFromFile(string filename);
};

Tile GameMap::loadTile(int tileID, int x, int y) {
     map<int,TileInfo>::iterator it = tileInformation.find(tileID);
     if( it!=tileInformation.end())
         TileInfo* info = &(it->second);
     else
         throw errorLoadingTile();

    return Tile(x,y,info /*other information*/);
}

void GameMap::loadTerrainFromFile(string filename) {
     //open file and read information
     //at this point the GameMap already has the map with the tile information filled
     //from when it was created

     for(unsigned int x = 0; x < mapWidth; x++)
         for(unsigned int y = 0; y < mapHeight; y++) {
              cout << "Works up to here" << endl;
              tiles[y][x] = loadTile(tileIDs[x][y],x,y);
              cout << "Crashes before this" << endl;

         }

    //do more stuff
};

我认为这与复制构造函数有关，但是Tile没有删除任何东西的析构函数，所以它不能删除TileInfo *，这就是地图的责任。任何帮助将不胜感激。