How to signal outcome to ability task wait conform cancel?

Development Programming & Scripting C++
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I’m talking about UAbilityTask_WaitConfirmCancel but the forum software doesn’t let me post that in the title (too long a word.)

How does the interaction signal “Confirm” or “Cancel” when using this waiting ability task?
Is there an example of this somewhere I’ve missed?

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I’m slowly making my way through the code on this subject.
(This is a background task, luckily, given the dearth of publicly available information …)

Currently investigating: AGameplayAbilityTargetActor_ActorPlacement
There are a whole two (2) hits on this class name on Google!
One is the unreal docs, which just list the members (thanks! It’s not like I have the source right here! :smiley: )
The other is the GameplayAbilityShooter subclassing it, which at least shows an actual use.

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Maybe someone else will find this on Google when looking for it. Here’s hoping!

Anyway, the built-in asynchronous positioning features in the Gameplay Abilities System works as such:

  1. You need to bind two input keys to “Confirm” and “Cancel” actions
  2. Those should call YourPawn->AbilitySystemComponent->Target{Confirm,Cancel} which are pre-existing functions
  3. Your GameplayAbility, in EventActivateAbility, needs to spawn a sub-task using WaitTargetData
  4. This sub-task should be a GameplayAbilityTargetActor_ActorPlacement, configured with the appropriate size/assets

Note that this will use your player aim direction for placement, and the sphere (or capsule) of the size you configure, for placement. If you need fancier placement go/no-go, such as “needs flat ground” or “box collisions” or whatever, you’ll need to subclass this class, using C++.

Anyway, with this wired up, it works pretty well off the shelf. Just finding the right combination of pieces for this task was a PITA. Here’s the main part that might unlock the rest of the flow for someone else in a similar position:

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1 Like
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Seems like you’ve already figured it out. Just wanted to drop a link to the GitHub - tranek/GASDocumentation: My understanding of Unreal Engine 4's GameplayAbilitySystem plug project in case you weren’t aware of it. The section 4.11 covers Targeting and seems to match your solution in terms of cancel/confirm on input. There are also two example games.

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Yeah, tranek/GASDocumentation: My understanding of Unreal Engine 4’s GameplayAbilitySystem plugin with a simple multiplayer sample project. is the best documentation I could find! (I think I mentioned this in another thread.)
Whoever Tranek is (@Tranek1997 perhaps?) – thank you!