I have a BD Pro tree where NPCs search for resources (trees), chop them down, and deliver them to a warehouse. When there's only one NPC, everything works fine, but when there are two or more, after a while of hitting the tree, they start running into it, and a StartStopUse loop occurs. Has anyone encountered this? I'm using A* and RVO Controller.
Problem with StartStopUse
- Thread starter PabloEsko
- Start date
Cheo
Active member
Hi, you'll have to do some Debugging in StartStopUse.OnUpdate and look at the info displayed at runtime on the Melee Action component to have an idea of what is going on, and whether the item has started (or tried to) being used, and is waiting for completion. I can offer you a screenshare for free to take a look directly at this if you're interested.
Hi, are you talking about this Debugging?
Attachments
Cheo
Active member
Yes, and you can also put Debug.Log lines in StartStopUse.OnUpdate to see why exactly the task keeps returning a Running status. You can record a full video with the characters chopping a few trees and then stumbling upon the bug, showing all of the debug info so we can see the differences with previous successful chopping actions.
The Running status is stuck in a loop in this code fragment, presumably because the axe swing animation is interrupted by the "Run" animation, and StartStopUse can't complete its execution. However, the reason for triggering the character movement remains unclear.
Attachments
Here is the whole tree and a second screenshot showing that when reproducing this error, it does not fall into the Seek branch.
If you disable the RVO controller, the NPCs will line up and the error will not occur, but they may get stuck.
I am sending 2 videos
drive.google.com
If you disable the RVO controller, the NPCs will line up and the error will not occur, but they may get stuck.
I am sending 2 videos
Bug - Google Drive
drive.google.com
Attachments
Cheo
Active member
Ah, by any chance are both your moving and chopping animation states on the same layer ? (The Base one I would assume) I would recommend taking example on the Demo animator and have movement animations on the Base layer and item usage animations on the Arms/Upperbody/Full Body ones. If you have moving and attack animations on the Base layer, you risk getting the latter cancelled by the former as movement transition conditions can be easily met.