Creational Design Patterns in Modern C++ - Multiple Actors - Part III

The video tutorial discusses modifications to the actor pool to support various actor types, highlighting the design issue of tight coupling and the violation of the open-closed principle. It introduces the factory method design pattern to decouple the actor pool from concrete classes. The tutorial explains creating a struct to store actor info and creator functions, modifying functions for acquiring and releasing actors, and registering creators using lambda expressions. The new implementation allows for future flexibility without modifying the actor pool.

What is the main issue with the actor pool as discussed in the first section?

• It is too slow in creating actors.

• It does not support any actors.

• It is tightly coupled with concrete classes.

• It is too flexible and hard to manage.

What design pattern is introduced to solve the actor pool's limitations?

• Decorator Pattern

• Factory Method Pattern

• Observer Pattern

• Singleton Pattern

What new data structure is introduced to store actor information?

• A simple array

• A linked list

• A struct called actor info

• A binary tree

What is the purpose of the creator function in the new implementation?

• To update actor properties

• To create instances of actors

• To delete actors

• To log actor activities

How can clients register a creator for an actor type?

• By using a configuration file

• By modifying the actor pool directly

• By calling a register creator method

• By using a global variable

What programming construct is used to specify a creator in the final implementation?

• A class

• A function pointer

• A macro

• A lambda expression

What is the benefit of the new implementation of the actor pool?

• It simplifies the user interface.

• It allows adding new actor types without modifying the actor pool.

• It is faster than before.

• It uses less memory.