How to get object reference using c++?

[xvivax]

Hi guys,

So I have a situation where I put hundreds of objects(cubes) into the scene. I randomly drop the player from the sky and it lands on one of those cubes. My task is:

1.Find the reference of an object I have landed on.

2.Find the reference of objects(cubes) around me.

But I dont know what is the function to get reference of an object, can aybody help me? Or maybe there is better approach to this tasks?

Thank you

[DennyR]

There are quite a few ways to find references of actors so I will just make a list

• Use traces: Everything about traces from the official docs You can just right-click the blueprint nodes and see how they do it in C++ from there. Also this wiki tutorial on traces
• You can use the various overlap checks to get all actors in a range. Actors overlap check
• You can use an actor iterator and then check the distances on. More on that here
• lastly, not sure if this applies to you, if you use the CharacterMovement, it stores the floor you are walking on as FHitResult, which also has a reference to the actor you are walking on.

You could also expose a field using

UPROPERTY(EditAnywhere)
class AActor* SelectedActor;

and just manually set the reference this way, but it is probably not applicable for you.

[xvivax]

Thanks, I’m gonna try to use traces.