Unreal Engine Blueprints Unreal Engine Blueprint Ultimate 4

Question 1

What is the purpose of 'Blueprint Macros' compared to regular Blueprint functions?

Accepted Answer

Macros can have multiple execution input and output pins, unlike functions which have one

Answer

Blueprint Macros support multiple execution inputs and outputs and are expanded inline at compile time, giving more flexibility in control flow than standard functions.

Question 2

In Blueprint replication, what does setting a variable's replication to 'RepNotify' do?

Accepted Answer

It replicates the variable and calls a custom 'OnRep_' function on clients when the value changes

Answer

RepNotify replicates the variable from server to clients and automatically calls the generated 'OnRep_VariableName' function on clients whenever the replicated value changes.

Question 3

Which Blueprint node is used to delay execution for a specified number of seconds without blocking the game thread?

Accepted Answer

Delay

Answer

The 'Delay' node pauses the execution flow for a given duration using Unreal's timer system, without stalling the main game thread.

Question 4

What is the correct way to spawn an actor of a specific Blueprint class at runtime?

Accepted Answer

Spawn Actor from Class

Answer

'Spawn Actor from Class' creates a new instance of the specified actor class in the world at the given spawn transform.

Question 5

In Blueprint, what does the 'Get All Actors of Class' node return?

Accepted Answer

An array of all currently active actors of the specified class in the world

Answer

'Get All Actors of Class' iterates the world and returns an array containing references to every living actor of the specified class.

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Unreal Engine Blueprint Ultimate 4