Unreal Engine Blueprints Actor and Component Interaction 5

Question 1

How do you get a reference to the Player Controller from inside a non-player actor Blueprint?

Accepted Answer

Get Player Controller node with player index 0

Answer

Get Player Controller returns the PlayerController for the specified local player index, accessible from any Blueprint in the world.

Question 2

What is the correct way to move a Static Mesh Component to a new world location each frame in Blueprints?

Accepted Answer

Call Set World Location on the component in the Event Tick

Answer

Set World Location called on the specific component reference moves only that component to the specified world-space position.

Question 3

In Unreal Engine Blueprints, what does 'Register Component' do for a dynamically created component?

Accepted Answer

Adds the component to the actor's component list and initializes it in the world

Answer

After creating a component at runtime with 'New Object', calling Register Component finalizes its creation by adding it to the actor and initializing it in the scene.

Question 4

Which event fires on an actor when it is first placed in or streamed into the level?

Accepted Answer

Event Begin Play

Answer

Event Begin Play fires once when the actor becomes active in the game world, whether placed in the editor or spawned/streamed at runtime.

Question 5

What is the purpose of the 'Get Socket Location' node on a Skeletal Mesh Component?

Accepted Answer

Returns the world-space position of a named bone socket on the mesh

Answer

Get Socket Location queries the current world-space position of a named socket or bone on the Skeletal Mesh, accounting for animation pose.

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Actor and Component Interaction 5