1
\$\begingroup\$

I've looked but havn't been able to find a the workflow for this searching online.

I have an NPC, with a behavior tree. Right now it just moves around the map. It's supposed to have a health variable, which triggers something to happen when its health is at 0. 'Health' is reduced when the player shoots a ray cast at it.

I'm unable to find where/how to place this.

I've tried storing the 'health' in the Character, the Controller, and in a Blackboard.

Storing it in the Blackboard allows the behavior tree 'Tasks' to modify it, but then it can't be triggered to change by an 'On Any Damage' in the NPC Character/Controller. I can put it in the Character, but then the tree or its tasks can't seem to access it.

Sorry if this is vague, I'm lost. This feels like it should be simple.

TLDR, all I need is a variable stored in the NPC Character which the behaviour tree or its tasks can react to. Simple, no? Can't figure out how personally.

Improve this question
\$\endgroup\$

1 Answer 1

Reset to default
1
\$\begingroup\$

Add the variable to the 'Character' blueprint, and add a variable of the same type to the tree's blackboard. In the 'task', cast to the Character blueprint the variable is stored in and use a 'Set Blackboard value as...' to make that value accessible to the behaviour tree.

Improve this answer
\$\endgroup\$

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .