Usage of Payload

How to use the Payload obje

Network Environment

Keep in mind when using UObjects as payloads that they're not replicated, you either have to make your own replication for UObjects or use a replicated Actor (although this isn't recommended). If you choose to use Actors as payloads, make sure to destroy it if it's not in use anymore!

We are recommending to use theMessageinput instead to transfer any simple informations!

Make sure you have read the Implementation Guide before proceeding with any examples for optimal results!

1. Bind the event SaveScore in BeginPlay():

Add it to your Blueprint

1. the OnEventCalled() event and add one of the two code examples:

It is recommended to use Interfaces instead of casting!

Casting

Quick way with casting, not recommended for large scale (Click on the image for original resolution)

Interface

Using Interfaces is recommended to avoid unnecessary dependencies (Click on the image for original resolution)

Interface Setup

1. Create a new Blueprint Interface and add a new function which has the same variables as your Payload as outputs.

Optionally add a boolean named "Success" which can be used instead of HasInterfaceImplemented()

1. Implement the Interface to your Payload

Done! Now you can use CallEvent() everywhere you want and pass a BPO_MyPayload to it like this:

If you cache a reference to a Payload for any reason, make sure to clear the variable as it won't be collected by the Garbage Collector otherwise.

For this example I placed this into the Level Blueprint

Print result