Blueprints Visual Scripting for Unreal Engine - Second Edition

Exploring the Event Graph panel

By default, Event Graph opens with three unlinked Event nodes that are currently unused. An Event refers to an Action in the game that acts as a trigger for a Blueprint to do something. Most of the Blueprints you will create follow this structure: Event (when) | Conditionals (if) | Actions (do). This can be worded as follows: when something happens, check whether X, Y, and Z are true. If so, do this sequence of Actions. A real-world example of this might be a Blueprint that determines whether or not the player can fire a gun. The flow is like this: WHEN the trigger is pulled, IF there is ammo left in the gun, DO fire the gun.

The three Event nodes that are present in our graph by default are three of the most ...