For all blueprint functions you create, Unreal Engine will provide you with a blueprint node to call that function. These… Read more Custom Blueprint Nodes using Unreal Engine’s K2 Nodes

A possibility for an event system is to make events consumable. That is, a certain delegate can tell the event system to stop sending out the event it just received as other delegates shouldn’t be handling it any more.

If you want to have two objects communicate with each other without coupling them, the observer design pattern might just do what you want. But what if you want more?