Method make_entity

samples/factory.cpp:25–29

we may as well pass the parameters for the entity to the factory method, this does the initialization in one step.

    // we may as well pass the parameters for the entity to the factory method, this does the initialization
    // in one step.
    Entity *make_entity(const int width, const int height, const int x, const int y, const std::string &name)
    {
      auto entity = entities.insert({name, Entity{width, height, x, y, name}});
      return &(entity.first->second);
    }

    Entity *get_entity(const std::string &name)
    {