void Enemy::addEnemy()
{
    enemies.push_back(Enemy());

    enemies.back().texture = AssetManager::manageTextureElement(enemies.back(), "mainsprite.png");
    enemies.back().sprite.setTexture(enemies.back().texture);
    enemies.back().sprite.setOrigin(enemies.back().texture.getSize().x / 2, enemies.back().texture.getSize().y / 2);
    enemies.back().sprite.setPosition(10, 10);
}