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Random Task in AI

Hi all, I want the behavior tree to randomly do one of the tasks below a selector. Don't care which task. My current solution is to randomly Finish Execute with a fail so it goes to the next one. It works but it doesn't feel clean.

Is there a cleaner solution?

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Product Version: UE 4.15
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asked Jun 15 '17 at 11:47 AM in Blueprint Scripting

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You can create a 'Service' and assign a random integer to a blackboard value and then on each task, use 'blackboard condition' decorator to check that integer value. Here, take a look at this very simple setup for a better understanding;

Blackboard alt text

Behavior Tree alt text

Service alt text

Assign the service value to blackboard value.

alt text

First Task alt text

Note that in this approach, the selector only picks one random task to execute. Hope it help.


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answered Jun 15 '17 at 01:04 PM

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avatar image Jiyko Jun 15 '17 at 03:25 PM

This works! Cheers.

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