I have been at it for quite some hours now so I pretty desperate, please bear with me here :).

The addEntity function looks like this:

Entity& addEntity()
{
    Entity* e = new Entity();
    std::unique_ptr<Entity> uPtr{ e };
    entities.emplace_back(std::move(uPtr));
    return *e;
}

and this is how I create Entities:
auto& example(manager.addEntity());

My question is how do I create an array of entities using the addEntity() function.

I tried the following:
auto& example[100](manager.addEntity());
and I got multiple errors.

I usually don’t really post anything on here but I really can’t focus enough atm to interpret another solution of a slightly different problem as a solution for mine :).