Able Ability System Info and Support Thread

[ExtraLifeMatt]

@acxsasx

Goal: Whenever an actor takes damage, evaluate the type of damage and react accordingly for that actor.

First thought is to use UE4’s TakeDamage’s event “OnTakeAnyDamage” as a launching point for logic to respond to damage types for differing responses and logging. I would like to pass in a custom DamageType to have the different actors make decisions as this is a parameter of the TakeDamage actor method I am overriding and is included in the event being raised. Sadly, I see DamageTypes have to be a class and cannot be an instance.

Alternatives:

1 - add my own events in the blueprintlibrary call where damage is being calculated and pass the gameplay tag.

2 - I see you set gameplay tag task could work, but it does not fire off any event that I could respond to.

3 - Hmmm…maybe use the custom event task and have to remember to set it after every set gameplay tag is set?

I think I am going to try for the (1) alternative. Make a delegate off my class that inherits from actor and have the bluprintlibrary broadcast it.

Yea, I’m really not a fan of how the Damage type is setup by default in the engine (they’re classes as you point out which is pretty heavy weight just for what amounts to a simple flag / integer).

I basically handle this in the Burning Man example ( https://www.youtube.com/watch?v=-cAP5eqTb2Y ) by explicitly passing the Gameplay Tags during CalculateDamageForActor, so when the Actor actually receives the OnTakeAnyDamage callback - they can then look at the incoming tags for that damage.

While not 100% ideal, since those calls happen back to back, you don’t have to worry about some other damage call coming along and stomping your incoming tags (and if you are that worried, you could always store them as a queue).