Przeciążenie std::vector < GameObject > do GameObject::Terrain

enum class terrainType { grass, sands, water };

class Terrain
    : public GameObject
{
public:
    Texture * texture;
    terrainType ttype;
   
    Terrain( string name, terrainType ttype )
        : GameObject( name )
    {
        type = gameObjectType::Terrain;
        texture = getTexture( "assets/tiles/" + name );
        this->ttype = ttype;
    }
   
};

GameObject * prefabToPaint;
Terrain * terrainPrefab = dynamic_cast < Terrain * >( prefabToPaint );
cout << terrainPrefab->ttype;