2020-04-11_11:28:47
A type of controller that uses AI to generate input signals.
Created as a Blueprint or C++ class with AI Controller as the parent class.
An AI Controller controls a Pawn, accessed with GetControlledPawn.
A Pawn selects its AI Controller class in the Pawn section of the Details panel.
The property is named AI Controller Class.
There is alsoAuto Possess AI.
There are two possible possession events, Placed and Spawed, so four combinations:
- Placed in World. When placed in Unreal Editor, I think. So instances that exists when the level is loaded but not instances that are created during gameplay.
- Spawned. When spawned during gameplay. I think.
- Placed in World or Spawned. Both of the above combined.
- Disabled. No auto-possessing. The Pawn won't have an AI until someone gives it one.
The AI Controller has a weak relationship to its Pawn, meaning that the two can exist separately.
The AI Controller is notified of the Pawn it controls with the OnPossess callback.
BeginPlay may be too soon, may not have possessed the Pawn yet.
Can contain a Blackboard to store state. Enable with the Use Blackboard function.
Select the Blackboard asset to use. Often called from the BeginPlay event.
A Behavior Tree is started by adding a Run Behavior Tree node. Select the behavioral tree asset to use. Often called from the BeginPlay event.
[[2020-04-11_11:18:18]] Controller
[[2020-04-11_09:21:04]] Pawn
[[2020-07-04_16:38:27]] Blackboard
[[2020-07-04_15:46:00]] Behavior tree