if(HScreen::getScreen()->GetInput().IsKeyDown(sf::Key::Left))
    {
        for(int i=0; i<16; i++)
        {
            if(!isCollidingAt(x-WALK_SPEED, y-i, OBJ_MASK))
            {
                x -= WALK_SPEED;
                y -= i;
                break;
            }
        }
    }
    if(HScreen::getScreen()->GetInput().IsKeyDown(sf::Key::Right))
    {
        for(int i=0; i<16; i++)
        {
            if(!isCollidingAt(x+WALK_SPEED, y-i, OBJ_MASK))
            {
                x += WALK_SPEED;
                y -= i;
                break;
            }
        }
    }