Aiming component still messing up

Unreal Courses Talk
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#1

my colour retical doesnt change and i get this error in my log.

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#2

Apparantly my tank was being created after the beginplay on tankplayercontroller which meant bp aiming comp could not be set as there was no tank to pull data from. I added a 1 second delay in the beginplay so the tank has enough time to spawn so that the getcontrolledtank now actually returns something. Is this a viable fix? Im not sure what else could be done. I heard ben say we’re gonna be moving it all into c++ anyway.

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#3

It only works with a 2 second or more delay. I tried 1 second but its not enough time.

#4

does anyone know why the player tank is taking so long to initialise?

#5

ok i found my issue. i feel stupid. when Ive been testing the game, i have been using similation mode which starts the game but then i have to click possess to spawn in tank. it now works perfect without the delay when possessing tank on game start. this entire post should probably be deleted.

#6

Glad you were able to solve your problem.

#7

Hello Den
In this Lecture Ben said that we can’t set AimingComponent pointer in Tank C++ constructor because AimingComponent is not exist yet (Lecture 172 time 4:30)
But before we start refactoring TankAimingComponet as a SubClass was created in Tank C++ constructor what has changed now?

#8

I could not understand
Now I am in Lecture 177 and have tried to create TankAimingComponent in Tank C++ Constructor again but it was not created
Whereas in old architecture we such way created AimingComponent

#9

Refer to the previous lectures, the aiming component was moved to BP, so it wouldn’t exist on C++ construction yet. (Starting 169)

#10

  1. I solved the problem Den as I guess CreateDefaultSubobject() can work in Tank C++ Constructor but FindComponentByClass() can’t because Tank_C constructor runs before Tank_BP and therefor FindComponentByClass() can’t find something.

  2. how work FindComponentByClass() function?
    we have three inheritor class: Pawn->Tank_C->Tank_BP and how can Pawn with FindComponentByClass() find the AimingComponent in Tank_BP ?
    (I mean the Line:
    auto AimingComponent = GetPawn()->FindComponentByClass<UTankAimingComponent>(); )
    FindComponentByClass() is a freind function or something like?

#11
  1. My name is Dan
  2. FindComponentByClass is a function on AActor, it loops through it’s components and returns the first UActorComponent* of the specified type which must be derived from UActorComponent.
#12

Thank you Dan

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