SFML - Collision Deep

if (body.getGlobalBounds ( ).intersects ( other.sprite.getGlobalBounds() ))
    {
        sf::Vector2f otherPosition = other.pos;
        sf::Vector2f otherHalfSize = other.sprite.getSize ( ) / 2.0f;
        sf::Vector2f thisPosition = GetPosition ( );
        sf::Vector2f thisHalfSize = GetHalfSize ( );

        float deltaX = thisPosition.x - (otherPosition.x + otherHalfSize.x);
        float deltaY = thisPosition.y - (otherPosition.y + otherHalfSize.y);
        float differenceX = otherHalfSize.x + thisHalfSize.x;
        float differenceY = otherHalfSize.y + thisHalfSize.y;

        float deepX = differenceX - abs ( deltaX );
        float deepY = differenceY - abs ( deltaY );

        if (deepX < deepY && deltaX > 0)  // Prawa Kolizja
        {
            other.pos = sf::Vector2f ( thisPosition.x - thisHalfSize.x - otherHalfSize.x - otherHalfSize.x, other.pos.y );
            std::cout << "Prawa!" << std::endl;
        }
        else if (deepX < deepY && deltaX < 0)  // Lewa Kolizja
        {
            other.pos = sf::Vector2f ( thisPosition.x + thisHalfSize.x, other.pos.y );
            std::cout << "Left!" << std::endl;
        }
        else if (deepX > deepY && deltaY > 0)  // Dolna Kolizja
        {
            other.pos = sf::Vector2f ( other.pos.x, thisPosition.y - thisHalfSize.y - otherHalfSize.y - otherHalfSize.y );
            std::cout << "Low!" << std::endl;
        }
        else if (deepX > deepY && deltaY < 0)  // Górna Kolizja
        {
            other.pos = sf::Vector2f ( other.pos.x, thisPosition.y + thisHalfSize.y );
            other.dir.y = 1.0f;
            std::cout << "Up!" << std::endl;
        }
    }