Access monobehaviour variable from BT

[DrewofDonuts]

I just can't seem to understand the documentation if it's already providing how to do this, so my apologies in advance.

I would like to be able to manipulate monobehavior variables from the behavior tree.

If someone could please assist, I'd greatly appreciate it!

 

[Justin]

Within the task you can call GetComponent<MyMonoBehaviour>() and then access a reference to that component. This will then allow you to access it like any other component.

 

[DrewofDonuts]

Within the task you can call GetComponent<MyMonoBehaviour>() and then access a reference to that component. This will then allow you to access it like any other component.

I'm sorry to be a pain, but if you could provide a little information on the broad steps (or even just where to start the process), that would very helpful. I'm not sure if you mean that I should edit the task within the script, or if that can be done within the Behavior Designer GUI.

 

[Justin]

You can use the reflection tasks, such as SetFieldValue, but I do not recommend this as reflection is slow. Instead you should create a new task, similar to this page: https://opsive.com/support/documentation/behavior-designer/writing-a-new-action-task/

 

[DrewofDonuts]

Thank you!

I discovered the use of creating properties and using set/get shared variable tasks. Is there any concerns of using that method as a project grows? Any performant issues?

 

[Justin]

No, those are ok for performance. When a property mapping is used it creates a delegate which is fast, and the get/set variables don't use any reflection.