Loading Config/Map File

#include <iostream>
#include <vector>
#include <string>

class Application
{
public:
    bool load();

private:
    std::vector<std::string>& split(const std::string &s, char delim, std::vector<std::string> &elems);
    std::vector<std::string> split(const std::string &s, char delim);

    std::vector<std::unique_ptr<sf::Texture> > mTextures;
    std::vector<sf::Text> mNames;
    std::vector<sf::Sprite> mSprite;
    std::vector<sf::Time> mTimestamps;

};

std::vector<std::string>& Application::split(const std::string &s, char delim, std::vector<std::string> &elems)
{
    std::stringstream ss(s);
    std::string item;
    while(std::getline(ss, item, delim))
    {
        elems.push_back(item);
    }
    return elems;
}


std::vector<std::string> Application::split(const std::string &s, char delim)
{
    std::vector<std::string> elems;
    return split(s, delim, elems);
}

template <class T>
bool Application::fromString(T& t, const std::string& s, std::ios_base& (*f)(std::ios_base&))
{
    std::istringstream iss(s);
    return !(iss >> f >> t).fail();
}

bool Application::load()
{
    std::string line;
    std::ifstream file("config.cfg");
    if(file.fail())
        return false;

    while(!file.eof())
    {
        std::getline(file, line);

        // Commented line
        if(line.find_first_of("#") != line.npos)
            continue;

        std::vector<std::string> splittedLine(split(line, ':'));
        if(splittedLine.size() != 5)
            continue;

        // Load texture
        std::unique_ptr<sf::Texture> tex(new sf::Texture);
        if(!tex->loadFromFile("img/games/" + splittedLine[0]))
            continue;
        mTextures.push_back(std::move(tex));

        // Sprites
        sf::Sprite sprite(*mTextures.back());
        float x = 0, y = 0;
        if(!fromString<float>(x, splittedLine[2]) || !fromString<float>(y, splittedLine[3]))
        {
            mTextures.pop_back();
            mNames.pop_back();
            std::cout << "Positions not set..." << std::endl;
            continue;
        }
        sprite.setPosition(x, y);
        mSprite.push_back(std::move(sprite));

        // Move back the name
        sf::Text text(splittedLine[1], sf::Font::getDefaultFont(), 14);
        text.setOrigin(text.getLocalBounds().width/2.f, 0);
        text.setPosition(x+32, y+78);
        mNames.push_back(std::move(text));

        // Animation timestamp
        int timestamp = 0;
        if(!fromString<int>(timestamp, splittedLine[4]))
        {
            mTextures.pop_back();
            mNames.pop_back();
            mSprite.pop_back();
            std::cout << "Timestep not set..." << std::endl;
            continue;
        }
        mTimestamps.push_back(std::move(sf::milliseconds(timestamp)));

        mFirst.push_back(false);
    }

    return true;
}