System description

ADS Directional Trigger lets you trigger different reactions according to the direction in which an actor crosses an area. It is useful for one-way doors, ambience changes when crossing a passage, or gameplay elements that react to the player's travel direction.

In the editor, the area displays easy-to-read coloured markers. Each colour represents one side of the trigger; the system also distinguishes entering the area from leaving it. You decide what happens in every case.

Reactions are prepared as small reusable Blueprint actions. This lets you adapt the behaviour to your game without changing the system: change music, adjust speed, start a sequence, or call your own logic.