How to make an ai know which door the player went through

Development Programming & Scripting Blueprint
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2

There's a lot things that you can do to solve that. I will go with a simple to implement one:

  • Make a variable on your GameMode that holds the last door visited. (Actor LastDoorVisited)

  • On your door blueprint, add a BoxCollision component and add a OnComponentBeginOverlap event to it.

  • Following that event: get the GameMode reference, cast it to your GameMode class and set your LastDoorVisited using the reference to the current door (using Self).

  • Inside your AI, get the GameMode reference, cast it to your GameMode class and just get your LastDoorVisited reference.