Question: How do I implement functional battery drain and recharge for a night vision post-process in Unreal Engine using Blueprints?

[Mind-Brain]

Hey @Elixable! Welcome to the forums!

@Elixable

How should I properly implement the battery drain when night vision is active?

On your “Drain Battery” event, that’s where you do “Battery --” then SET Battery float’s value to that. Between the drain and the Event “Drain Battery” node is where you should do the check of Battery <=0, then on False do nothing but… (cont)

@Elixable

How can I automatically revert to normal vision when the battery reaches 0?

on True, turn off flashlight and Invalidate timer by handle. To get the handle for that, promote the return value off of the set timer by event and then use that.

@Elixable

How should I handle battery pickup events that restore battery life?

Just make an event to be called from elsewhere that takes “Battery” (float), adds however much you want, run that through a Clamp(float) with your minimum and maximum, and then Set Battery again!

Hope that helps!