#gameplay-ai | Unreal Source | Page 93

solid osprey Nov 24, 2016, 4:10 AM

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seems suboptimal to use a channel like a web forum

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anyway isn't that 600 people for the whole of unrealslackers

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this channel isn't super active

flint trail Nov 24, 2016, 4:20 AM

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don't be fooled, it is dead

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today at least

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tomorrow is Thanksgiving, so maybe that's why

solid osprey Nov 25, 2016, 5:04 PM

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gyazo.com/f2fea45265b0a18290c53bfc8e4ded83 … Tree will not move to wait, but the bool switches from Not Set to Set when character is atTarget?

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https://gyazo.com/f2fea45265b0a18290c53bfc8e4ded83

Gyazo

violet patio Nov 26, 2016, 9:08 PM

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Can anyone help? My Enemy AI characters just run on the spot, they don't move at all. They SHOULD be running towards the big purple circle (And look at it too) But for some reason they all face the wrong way (Red Lines).

📎 unknown.png

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They used to work, but I changed my level and changed my spawn points, nav meshes etc. Now they just dont work anymore

indigo thicket Nov 27, 2016, 6:00 AM

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Did you factor in the changes with the AI As well? (Make sure they read the new mesh, etc. )

vital jetty Nov 27, 2016, 1:55 PM

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is it possible to have two services run parallel to each other? I want my AI to both check for next point (distance check) AND raycast for any obstacles all the time. and I want to keep those two things as separate services instead of having to lump them in a big 'DoStuffEvery0.5secs' service...

opal spade Nov 27, 2016, 2:50 PM

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Is it normal to lose ~50% of your FPS if you were to spawn 100 AIs and tell them to move to the player?
Just in the default third person template

near jetty Nov 27, 2016, 8:36 PM

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mate, you are doing 100 pathfinding requests at once

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plus 100 pawns, all having overhead

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plus 100 skeletal meshes with tons of bones and an animation tree each

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plus all the physics overhead of the Character Movement

viscid oasis Nov 27, 2016, 10:54 PM

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So... yes?

worn yarrow Nov 28, 2016, 7:23 AM

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Hi. does anyone know if Behavior tree can be run via a queue style

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rather than all at a tick

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speicfically.. can i get the AI to run certain task based on queue ( only 1 guy gets processed per tick )

flint trail Nov 28, 2016, 2:58 PM

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good question @worn yarrow , I'd like to know that too

worn yarrow Nov 29, 2016, 4:00 PM

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hi . has anyone worked on Behavior tree on C++ yet?

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i'm extending the MoveTo node and i'm trying to get the function that runs when the whoel task ends

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it seems that OnTaskFinished runs even before the task is finished. i think it runs on path update

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any idea which function is it when the task totally ends

rustic nova Nov 30, 2016, 1:53 AM

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@worn yarrow as soon as you call FinishExecute(True) it will end

worn yarrow Nov 30, 2016, 3:01 AM

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No. I want to get the function that runs when it runs finish execute

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Apparent the non bp version never call finish execute @rustic nova

rustic nova Nov 30, 2016, 3:21 AM

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@worn yarrow Hmm, maybe you can use Receive Abort? Its called when a decorator stops a task so sort of when it finish executing. I usually call a function there as well as when I call finish execute to reset a task.

worn yarrow Nov 30, 2016, 3:21 AM

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tried.

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only happen if decorator abort it

rustic nova Nov 30, 2016, 3:22 AM

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Ohhh I see, cause you don't have access to when MoveTo calls finish execute right?

worn yarrow Nov 30, 2016, 3:22 AM

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if it finishes correctly it won't run... i would swear that OnFinishTask is the one.. but it seems to keep running all thoughout the task . perhaps at the end of every segment

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yeah

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i ended up having to do it inside BP and use the Task Move To functionality

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which isn't ideal

rustic nova Nov 30, 2016, 3:23 AM

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Yea, I'd say it would be easier to make your own MoveTo Task then

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Though it would be nice if you could get OnFinishTask to work

worn yarrow Nov 30, 2016, 3:23 AM

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MoveTo is a quite a complex class

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i mean the C++ version

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hence I just extended it. imaginging it would be more efficient

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I have a feeling there's a functionality that runs after the task finish somehwere up in the BTNode parent

lyric flint Nov 30, 2016, 3:42 PM

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Hey new to UE4 coming from Unity. I've placed a Pawn Sensing component onto what will become an AI in a game. But the problem is it's at a 90degree angle of where the character is facing and I can't rotate it. Any ideas?

ocean wren Nov 30, 2016, 4:10 PM

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dont use pawn sensing component which is out of date, use AIPerceptionComponent

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you can rotate the static mesh if you need to

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Your AI should run via the AIController class, which you could rorate if you absolutely needed to

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rotate even

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erm.. 2 should say skeletal mesh 😃

lyric flint Nov 30, 2016, 4:22 PM

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@ocean wren Thank you for the useful info <3

ocean wren Nov 30, 2016, 4:22 PM

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you're welcome

vital flare Dec 2, 2016, 2:19 PM

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im new to AI, Im setting a boolean Key in black board and want to activate a specific part of my tree if it is true and wait if it is false. I think I should use a decorator mt dont know whitch one?

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basicaly I want my Ai to do stuff only when the bool is true, any hellp would be apreciated.

vital jetty Dec 2, 2016, 2:21 PM

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click the node in the tree, from the list pick decorator, pick blackboard, choose your bool in the dropdown, equal to false/true (whichever you want)

vital flare Dec 2, 2016, 2:30 PM

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tnx

solid osprey Dec 2, 2016, 8:15 PM

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anyone know how to have a character move to while jumping?

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atm character gets to location, jumps vertically, then moves to next vector

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i want character to move to while in air

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i suspect i'll also nee tou se sphere trace for this sort of thing at some point

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but for now just want jumptask which calls jumpfunction from character ai to run while moveto ir runing

lyric flint Dec 2, 2016, 9:41 PM

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Looking for info about making the AI character walk backwards on a switch?

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seems just setting the anim bp still forces it forward

odd inlet Dec 3, 2016, 1:53 AM

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http://puu.sh/sCkKX/08c13ad01e.png

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wondering if theres anything to improve that?

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34ms is a lot and since this is VR it totally doesn't work like this, performance needs to be way better

odd inlet Dec 3, 2016, 2:20 AM

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async nav generation seems to mostly fix it 😄

low copper Dec 3, 2016, 5:34 PM

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I'm trying to get a pawn to execute a list of animations, and then move somewhere else. Does anyone know when the Complete output pin in an array loop executes, in an AI task? I always though it was after it had looped through the array, and each item (an animation) had executed. It doesn't though. It executed the animations while moving off while still animating, even when there are several animations still to execute. I've solved iy by checking the index of the array instead, and if it is one less than the array length (i.e. this is the last one to be executed), going directly to a Finish Execute node. That works, even though I can't see how that would be different from Complete. Any ideas?

flint trail Dec 3, 2016, 5:50 PM

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@odd inlet it seems that all AI tasks are on backburner, thanks to Paragon 😦

worn yarrow Dec 3, 2016, 6:44 PM

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hey guys

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does anyone know anyway for dyanmic obstacle to affect ONLY a particular agent?

fierce lance Dec 3, 2016, 9:22 PM

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Anybody here knowledgeable in the ways of AIPerception (particulary in C++?)

silent nexus Dec 3, 2016, 10:21 PM

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📎 unknown.png

lyric flint Dec 4, 2016, 1:17 AM

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@silent nexus Whos this for?

low copper Dec 4, 2016, 9:41 AM

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@worn yarrow Can't you customise the collision type to only afect a certain type of actor?

worn yarrow Dec 4, 2016, 9:42 AM

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@low copper I can

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but im talking about navmesh here

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AI wouldn't move to places without navmesh anyway ...

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Dynamic Obstacle refers to an object that will cutout a hole in the mesh dynamically without reconstruction of the mesh

quiet basin Dec 4, 2016, 3:58 PM

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Could someone recommend a resource about common AI gamedev? (non ue4 related)

low copper Dec 4, 2016, 4:02 PM

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@frozenfire I think Ian Schadden talked about something similar in the Basic AI tutorial. Creating no-go areas in the Nav Mesh, but only affecting certain classes. It was in response to a question asked in the Live feed.

quiet basin Dec 4, 2016, 4:11 PM

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@low copper use full name (with #) otherwise users won't receive notification

edgy aspen Dec 4, 2016, 8:15 PM

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is there an idiot proof guide to EQS?

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cannot wrap my mind around it

quiet basin Dec 4, 2016, 8:46 PM

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hope not...

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there's a step by step guide https://docs.unrealengine.com/latest/INT/Engine/AI/EnvironmentQuerySystem/QuickStart/index.html

Environment Query System Quick Start Guide

This Quick Start Guide covers creating a Behavior Tree that uses multiple Run EQS Query nodes to find a place to hide from the player character.

edgy aspen Dec 4, 2016, 8:53 PM

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I've been through this one S-ed. At least at a glance. I was looking more for a basic C++ setup to run my own custom traces with. I am not using bipeds or navmesh.

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So currently I just run trace queries as a behavior tree service.

hybrid sorrel Dec 4, 2016, 9:12 PM

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I feel like I'm missing something simple. I have a Actor that will be ai controlled, I have it using charactor as the base class with the movement type set to flying, I have a behavior tree picking a target location and then using the moveTo task, however my charactor does not move.

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my ai controller and behavior trees are firing when playing in the editor

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are there functions that need to be implemented on the actor to apply movement inputs from the BT?

low copper Dec 5, 2016, 6:56 AM

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@hybrid sorrel The usual reason is you forgot the Nav Mesh volume. :)

solid osprey Dec 5, 2016, 4:52 PM

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how do i get character ai to rotate 90 degrees on task

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if i cast to charcter, get actor rotation, then 'set rotation'

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doesn't work

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hmm

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maybe setactorrotation node

vital jetty Dec 5, 2016, 4:59 PM

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set actor rotation node is the one 👍

solid osprey Dec 5, 2016, 4:59 PM

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hrm

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still not rotating my char

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when task runs

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i'm inheriting from a global gameai maybe thats it?...

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doesn't feel like thats it though

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https://gyazo.com/fd84ab6ea8cf9e4ebc9958d584bb71f9

Gyazo

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https://gyazo.com/e456452c3a9fcbce1a4a77bec654cd66

Gyazo

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to test

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this combination doesn't rotate char

vital jetty Dec 5, 2016, 5:57 PM

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check if set actor rotation gets the correct value

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the node itself definitely works, I have used it an hour ago to ensure the minimap camera always points down no matter what weird rotation my car might go into 😛

solid osprey Dec 5, 2016, 6:10 PM

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hm

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the only thing i'm wondering is

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am i setting the rotation for the characterai

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with this

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or am i just setting some random rotation var called rotation

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i mean, the setactorrotation node shoudl do it

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but doesn't seem to

vital jetty Dec 5, 2016, 6:16 PM

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stick a print string before Set Actor Rotation node and connect the rotation var to it, quickest way to debug

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because as far as I can see your setup is correct

solid osprey Dec 5, 2016, 6:17 PM

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https://gyazo.com/99bf81e0e6968d65a32369e355e9aa67

Gyazo

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hrm

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dunno that this will work

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ok

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ignore that one ]

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this is as simple as i can make it

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task is called setrotation

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https://gyazo.com/4471ae1a4305502146d8f21aa42eea03

Gyazo

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https://gyazo.com/d4dda283006131f7b1c42834807576db

Gyazo

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i don't think i'm tying the two teogether proeprly but my brain isn't workign toady

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like

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gameai says character rotation is 'rotation'

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i cast to gameai, and set rotation variable in task

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nothingh appens

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and i don't get a print string for that rotation

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i get a vector read out on play

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or rather, a rotator readout i imagine

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the rotation task fires

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but character doesn't move

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and dont get read out

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eg gameai not setting rotation on this char

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only thing i can think of is that it isn't working because gameai is parent of this characterai

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character needs its own local rotation or something

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or that the whole thing needs to loop

vital jetty Dec 5, 2016, 6:29 PM

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you probably need to cast to your exact character ai

solid osprey Dec 5, 2016, 6:31 PM

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mm

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just put the setactorrotation in the task

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don't kmnow why i didn't just do that to begin

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works now

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when i'm using instances of a gameai

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and changing multiple rotations

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do u know if it changes all instance when i do that?

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if u change a var on parent at runtime i don't imagine it changes vars on all children right

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but maybe it does

sullen escarp Dec 5, 2016, 8:01 PM

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Anyone know how to have a character move with root motion, but temporarily disable collision detection on the motion so the animation doesn't bump into things? I need the character to play out the animation with the root moving for a certain scene, but ignore collision

I was thinking disable root motion for that anim, and at the end of the animation get the mesh offset from the root and change the actor location to that, but there might be a pop?

EDIT: I ended up making the anim non- root motion and at the end of the anim on a single frame use TransformLocation to the relative location of the character mesh and then setting the character mesh back to 0,0,0 relative. No visible pop

quiet basin Dec 5, 2016, 8:25 PM

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OpenAI released Universe!

vital jetty Dec 5, 2016, 8:30 PM

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*bookmarks whatever it is to see 2morrow bc too late and need to sleep 😛 *

indigo thicket Dec 5, 2016, 10:12 PM

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Openai?

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Oh shit

odd inlet Dec 6, 2016, 4:45 AM

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http://puu.sh/sFLF9/bb03935743.png

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100 AIs, a bit slow, right? any idea why thats so slow?

stuck oar Dec 6, 2016, 4:49 AM

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What exactly are the AI doing?

odd inlet Dec 6, 2016, 4:51 AM

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nothing

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they are being spawned with gravity off and floating in the air

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all at the same location

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its a pool so that I can later use actors from that pool and don't have to spawn them since spawning is so slow

odd inlet Dec 6, 2016, 5:18 AM

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its probably because they are all inside each other, so its fine that its slow

stuck oar Dec 6, 2016, 5:27 AM

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It is calling a lot of Sweep commands. Have you tried disabling gravity and collision?

odd inlet Dec 6, 2016, 5:30 AM

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gavity is disabled, collision I should probably do, yeah

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I basically fixed it with this now: http://puu.sh/sFNer/8eabb92be8.png

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since they are invisible

stuck oar Dec 6, 2016, 5:31 AM

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Ah nice find

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Would you post the results after applying that?

odd inlet Dec 6, 2016, 5:34 AM

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well its 0 time now spent on char movement stuff, so theres just nothing to see now on the profiler related to those AIs 😄

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they are all invisible, so none of them is updated any more

stuck oar Dec 6, 2016, 5:35 AM

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perfect haha

odd inlet Dec 6, 2016, 5:35 AM

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yeah 😄

stuck oar Dec 6, 2016, 5:36 AM

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glad I could help lol

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😂

odd inlet Dec 6, 2016, 5:36 AM

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yeah thanks 😄

odd inlet Dec 6, 2016, 7:10 AM

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navmesh generation is slooow

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even with this ticked: http://puu.sh/sFQxO/29d3acaa2c.png

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80 ms frame time because the GT stalls while waiting for navmesh generation

odd inlet Dec 6, 2016, 9:56 AM

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ok, not really, was probably something else that was was

flint trail Dec 6, 2016, 4:22 PM

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so, nav mesh is generated when level is loaded ?

solid osprey Dec 7, 2016, 7:42 PM

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hmm

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so i'm still having some trouble with setting values in objects using tasks

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i want to have a task on BT that sets a bool on an object

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https://gyazo.com/cb6c3dd59c100af7acefde162d803491

Gyazo

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this doesn't work

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but not really sure how to access objects with tasks

solid osprey Dec 7, 2016, 8:18 PM

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ah need the reference

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used get all actors for now, but prob need a specific one generated on overlap or something

solid osprey Dec 8, 2016, 5:33 PM

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can you put a waypoint on an elevator

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and have it move

lyric topaz Dec 9, 2016, 3:03 AM

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Hello, I am having an issue with behavior trees. My enemies patrol the area until they sense the player with a sphere trace. The issue I am having is when one enemy senses the player, they all do and start moving towards the player. Any idea what is causing this bug?

empty glade Dec 9, 2016, 4:09 AM

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Are you using blueprints or code? Can you post a sample of your sense blueprint/code?

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Has anyone ever used two senses and detected which one triggers the perception update?

vital jetty Dec 9, 2016, 9:17 AM

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@lyric topaz you probably are syncing the blackboard across all instances

solid osprey Dec 10, 2016, 2:50 AM

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i've got a q on that

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might be related

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if all the enemies were subclass of a parent class 'gameai'

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would they all respond at same time

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or does each instance have its own stuff

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more specifically, say u have a parent class for all enemies, then a characterai for each enemy that inherits. in one enemies character ai, you change the parent classes 'speed' variable

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at run time if you do this, does it change speed for all gameai to taht amount

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or does your enemies each have their own local version of that parent variable

tidal kraken Dec 10, 2016, 6:12 PM

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Anyone familiar with setting AI like tasks to the player controller?

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I currently have it setup how it normally would be (Player Character/Player Controller) but I want to do some RTS type stuff, and allow the user to tell their character to do some tasks. But have the ability to cancel them and regain control.

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My issue being... Simple Move to Location/Actor doesn't report back when it's finished moving, like the AI movement controller does.

hoary sequoia Dec 10, 2016, 10:06 PM

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every time i rebuild the lightning, my navmeshvolumes navigation areas are gone until I move everything for a 1cm.. Am I the only one with that problem?

carmine thunder Dec 11, 2016, 1:25 AM

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does anyone here know how to make a AI?

pure surge Dec 11, 2016, 1:25 AM

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@RainbowWarrior I could be wrong, but I think usually you'd use an AI Controller that gets its orders from player commands. (Player clicks a move-to command, AI is told to move to that point) - If the player retakes control you'd switch out the AIController for the PlayerController.

carmine thunder Dec 11, 2016, 1:25 AM

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im looking for someone to make me one for $

pure surge Dec 11, 2016, 1:26 AM

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What kind of AI

carmine thunder Dec 11, 2016, 1:26 AM

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like a advanced AI

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that can like hear were u go sometimes and when he finds you he kicks you out of his house

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and like he learns your moves etc

tardy sierra Dec 11, 2016, 8:47 PM

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If i handle collision in a custom way, is it important that i manually instruct "movement mode" in character movement component in order for AI to handle instructions properly?

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I'm experimenting with soft collision so no state is really absolute, just thresholds

flint trail Dec 13, 2016, 6:16 PM

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so, looking at the Roadmap for UE4, I still see there nothing for AI in the nearest future.. What's up with that 😦

odd inlet Dec 15, 2016, 12:32 PM

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@flint trail well, focused on other stuff I guess

static stratus Dec 15, 2016, 7:22 PM

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anyone knows why some agents are not handling AIMoveTo? it seems like there is limit to how much character can move on navmesh at the same time

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so far I only was able to set max agents for crowd manager, but does not help

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ah, nvm my bad, nav mesh is out of reach

untold grotto Dec 16, 2016, 12:28 AM

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@solid osprey it would only change the speed variable for each individual actor instance you change it on, you'd have to loop thorugh all of them to change it at runtime as they are all their own instances of the class

solid osprey Dec 16, 2016, 11:28 PM

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can i get a service to stop itself for a certain period of time once its been activated once

foggy girder Dec 18, 2016, 1:53 PM

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I 'play cheat' by setting a bool var and restarting the tree

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Then again, all my nodes are 100% c++ so my trick may not be applicable to your situation.

warm marten Dec 19, 2016, 4:20 PM

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If there is a way to stop a service you can create a timer for it very easily

lyric flint Dec 19, 2016, 4:50 PM

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Hey guys, I have a problem.
The execution will not kick out of the leftmost parallel, even though it no longer satisfies its decorator. Execution should go to "Attack" selector, but it doesn't do so unless BTT_SetPatrolSpeed (or any other task) is connected to said selector.

I sort of understand that selector will not be triggered unless it has a task and thus I am forced to create empty or redundant tasks just so I can hit the selector and its service.
What i don't understand is why does the parallel keep getting executed even though it no longer should, regardless of the fact if the execution is able to move to another observer (Taunt, Attack, or Stun).

Any help is greatly appreciated.

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📎 BT.png

vital jetty Dec 19, 2016, 4:52 PM

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I can't see a thing in the gif :/

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what is the leftmost branch's decorator's observer abort set to?

lyric flint Dec 19, 2016, 4:57 PM

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📎 bt2.png

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And parallel's finish mode is set to immediate.

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If you cannot open the original image, I can try uploading it somewhere.

vital jetty Dec 19, 2016, 5:23 PM

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try aborting both?

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I can open the original but the text is waay too small to read

lyric flint Dec 19, 2016, 5:53 PM

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I tried both Finish Abort and Finish Execute on the leftmost node and the parallel still keeps getting executed without hitting the clauses

vital jetty Dec 19, 2016, 6:02 PM

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@lyric flint: change observer abort to "Both"

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and make sure all the others are set to abort "Self"

lyric flint Dec 19, 2016, 6:03 PM

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Will try.

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Nope, no cigar.

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Same thing.

vital jetty Dec 19, 2016, 6:06 PM

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does your task even call finish execute?

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because if it doesn't, it will never finish, obviously

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and nothing else will happen if it never finishes

lyric flint Dec 19, 2016, 6:11 PM

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Yes it does. Right side of the parallel has a "Move To" task that stops executing once monster reaches me. Left side has a task that does have finish execute on every tick.

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Thing is that it kicks out of the whole parallel if another selector has a task.

vital jetty Dec 19, 2016, 6:13 PM

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aha, there's your problem

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the parallel only ends executing if both things under it finish execute

lyric flint Dec 19, 2016, 6:13 PM

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They do.

vital jetty Dec 19, 2016, 6:13 PM

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and the way you said it, the right side only stops if a monster reaches you

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so if a monster doesn't reach you, the parallel never stops

lyric flint Dec 19, 2016, 6:14 PM

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It doesn't stop even if monster reaches me.

vital jetty Dec 19, 2016, 6:14 PM

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can you repost the tree, just more zoomed in so that it's actually readable?

lyric flint Dec 19, 2016, 6:14 PM

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As you can see in the first picture, "Move To" is no longer being executed.

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Sure

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📎 bt3.png

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Simple Parallel's decorator is returning false as you can see and the parallel is still being executed. "Attack" selector's decorator is returning true, but it is not branching there unless i connect it to a task, BTT_SetPatrolSpeed in this case.

vital jetty Dec 19, 2016, 6:18 PM

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if a decorator isn't connected to anything, it won't branch there

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so connect the task

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and I think I know what your problem is

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the parallel node is for doing x simple thing (e.g. animation) while doing something else (e.g. running the rest of the tree)

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try a sequence instead

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https://docs.unrealengine.com/latest/INT/Engine/AI/BehaviorTrees/NodeReference/Composites/index.html

Behavior Tree Node Reference: Composites

Reference for the Behavior Tree Composite nodes.

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I've never done parallels so I don't even know if it's possible to abort them

lyric flint Dec 19, 2016, 6:20 PM

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It is because it aborts if I connect the task to "Attack" selector.

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It makes no sense for it to abort only if it can branch somewhere else, instead of aborting when decorator tells it to abort and reevaluate.

vital jetty Dec 19, 2016, 6:25 PM

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@lyric flint: I guess that's the way the tree works in ue4

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I agree that it doesn't make much sense, though

lyric flint Dec 19, 2016, 6:26 PM

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Oh well, I can bypass the design flaw then.

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Thanks a bunch for helping out, really appreciate it 😃

simple gust Dec 27, 2016, 6:50 PM

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What is the best way to approach traffic pathfinding ? Moving a car from one point in the city to another while going on the correct lane

low loom Dec 27, 2016, 6:51 PM

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if they don't have to think, and just move based on lights, then waypoints.

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actually waypoints usually used to be used with racing games too

simple gust Dec 27, 2016, 6:56 PM

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Aren't waypoints just for moving to specific places though ? I am aiming to build a system where the 2 points can be anywhere in the city

vital jetty Dec 27, 2016, 6:59 PM

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@simple gust: you might want to try a navmesh, here's two attempts to make navmesh work with vehicles: https://github.com/runeabrahams1/Unreal-Engine-4-Bicycle-Simulator-with-AI https://github.com/jgcoded/VehicleAIProject

GitHub

runeabrahams1/Unreal-Engine-4-Bicycle-Simulator-with-AI

Unreal-Engine-4-Bicycle-Simulator-with-AI - A bicycle simulator made in Unreal Engine 4. It includes AI for cars, cyclists and pedestrians.

GitHub

jgcoded/VehicleAIProject

VehicleAIProject - Custom path following and AI for vehicles in Unreal Engine

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be warned, while I got the code from the bicycle thing (it's a bit newer, made for 4.11) to work after a couple of changes due to API changes, I didn't get the navmesh to actually pathfind to the target

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I happen to be working on something similar, so my trick is splines that are built in blueprints from an array of vectors. Then I can just get the item at index x from said array of vectors and the AI knows where to drive 😃

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actually moving to the correct spot is the easiest part

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the problems start when you have to account for obstacle avoidance and reversing

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ooh, one more tip: the repos contain a thing called PIDController, the thing does wonders for making the AI drive sensibly

simple gust Dec 27, 2016, 7:04 PM

#

Thank you very much, I will check those resources. What I am trying to do exactly is this: I have a semi-random way of generating roads with tiles. http://puu.sh/t2JMR/c11bc998da.jpg I am planning to build buildings next to roads and have a system for delivery trucks to go from one to another

vital jetty Dec 27, 2016, 7:05 PM

#

@simple gust: you're generating roads with tiles, I am generating roads with splines but otherwise it seems we're doing very similar stuff

#

I am doing a procedural free roam racer, so I'm building buildings next to roads and have the AI that drive around

#

latest gif: https://gfycat.com/SpitefulGrandChuckwalla

Gfycat

GFYCAT

testing AI performance - Create, Discover and Share GIFs on Gfyc...

Watch testing AI performance GIF on Gfycat. Discover more GIFS online at Gfycat.

▶ Play video

#

I think the only non procedural thing in the screen is the initial positioning of the player and AI

#

be warned, it took me nearly 2 months of reading a tutorial after a tutorial to get there 😛

simple gust Dec 27, 2016, 7:08 PM

#

Hehe to be fair I expected something much simpler when I looked for a solution for such a simple thing but it seems unreal doesn't have the easy tools for ai vehicles

#

I wonder if I could come up with an algorithm that will find out which tiles will take you to the target tile. Take that tile order and go from one to another while following the traffic rules

vital jetty Dec 27, 2016, 7:21 PM

#

if you lay out the tiles in a grid, like 0 1 2 3 4
5 6 7 8 etc. you could probably figure it out

edgy aspen Dec 27, 2016, 8:03 PM

#

rnn's are fun to play with

last fjord Dec 28, 2016, 8:16 PM

#

@simple gust IMO you'd want to always know where the lane actually is in case you get bumped off from it

#

since you generate the roads, you actually know that and can give AI that info

cobalt dagger Dec 29, 2016, 1:01 AM

#

is there any advantage to using a behavior tree compared to an event based AI?

vital jetty Dec 29, 2016, 8:01 AM

#

much much more readable

#

plus you can cancel stuff quickly (abort lower priority or abort both)

lyric flint Dec 29, 2016, 12:59 PM

#

i think behaviour trees are also much more dynamic, which means you can change and modify behaviour relatively quickly. I also assume it is more performant, but I have no data to support that 😃

lyric flint Dec 29, 2016, 1:41 PM

#

How can I setup the ai, so that it doesn't get stuck on the player character like this?

📎 ai_test.gif

vital jetty Dec 29, 2016, 1:42 PM

#

you probably need a bigger tolerance value in your move to

lyric flint Dec 29, 2016, 1:43 PM

#

Im using BT move to. Do you mean the tolerance value?

#

Tolerance Radius I mean

#

Damn, I mean Acceptance Radius

vital jetty Dec 29, 2016, 2:05 PM

#

yeah, that

lyric flint Dec 29, 2016, 2:20 PM

#

This value only effects whether the "is at location"-condition in the behaviour tree is met. In other words it is the radius in which the target location will be reached and the ai status will switch to idle.

magic jasper Dec 29, 2016, 4:25 PM

#

anybody done much C++ with Navmesh / Pathfinding?

#

I've got vehicles that need to navigate and pathfind via navmesh, but when they hover too high above it - they can't be pathed 'too', I'm guessing the pathfinding system does some form of culling based on height. Any idea how to prevent it?

#

Changing the nav agent height had no effect

vital jetty Dec 29, 2016, 4:48 PM

#

have you tried ticking project to navmesh before pathfinding on ai move to?

#

also, are your vehicles cars or what? I have a side project with navmesh and the code works but they don't path...

magic jasper Dec 29, 2016, 5:52 PM

#

hovering vehicles, and yeh navmesh etc is all there. I can see the pathfinding working when theyr're on the ground with the debugger, but when i hover too high, it stops pathing to it.

vital jetty Dec 29, 2016, 6:02 PM

#

my cars don't path at all

#

@magic jasper I meant, ai move to node has a checkbox that says 'project to navmesh before moving' or something like that

magic jasper Dec 29, 2016, 6:05 PM

#

interesting, I'll take a look at that. Cheers!

#

wierd, made no difference

last fjord Dec 29, 2016, 8:54 PM

#

@magic jasper could you use some dummy pathfinding object that's always at ground level?

#

never used ue4 pathfinding, just throwing random ideas around

magic jasper Dec 29, 2016, 8:58 PM

#

could do just makes it a bit of a pain then, another layer to go through. getting loads of malloc errors as well since creating a custom BT task... not sure if you have to override virtual uint16 GetInstanceMemorySize() const override { return sizeof(FBTFocusMemory); }

#

Doesn't feel like that falls in line with the rest of C++ in UE4 though... but I guess AI system is always in development

floral vigil Dec 30, 2016, 4:00 AM

#

@magic jasper Been a while since I was doing any of that, but there's something called AgentExtents/NavEntents or some such. It's a vector that defines the maximum distance a point can be projected when looking for nearby navmesh.

#

How do you invoke the navigation?

magic jasper Dec 30, 2016, 12:36 PM

#

That sounds interesting,... at the moment I call the 'Move To' node, same one that most people would use for characters

magic jasper Dec 30, 2016, 1:00 PM

#

@floral vigil That was what I was looking for... thanks. Looks like I'll need to make a few of my own classes for Recasts and different agents though 😦

vital jetty Dec 30, 2016, 2:00 PM

#

@floral vigil: where does one find it? because I'm having similar issues as @magic jasper

floral vigil Dec 30, 2016, 2:03 PM

#

I don't remember well, it's ages since I did AI stuff. Perhaps in the navigation agent settings in project settings? But you can also pass it to some nav functions in C++. Maybe BP too. It's used in a number of ways as I recall.

ocean wren Dec 30, 2016, 2:12 PM

#

guys...

#

and by guys I mean kamrann 😃

#

help!!! 😃

#

erm.. any idea what the best way to serialize a bunch of data is in UE? Ideally using exising TArray serialization, but to ascii rather than binary files

#

I've done a Json version but that is hellish slow

#

binary is fast enough, but I kind of need it in human readable form if possible

#

I'd thought just overriding FArchive could maybe do it.. you'd think there'd be some automated system for it though

magic jasper Dec 30, 2016, 2:54 PM

#

Project Settings.. sorry @ocean wren

floral vigil Dec 30, 2016, 11:10 PM

#

@ocean wren As far as I know UE4 doesn't have any built in support for text serialization.

ocean wren Dec 30, 2016, 11:11 PM

#

yeah, it is kind of wonky 😃 been hooking up the json serializer

#

but its sloooooow 😃

floral vigil Dec 30, 2016, 11:12 PM

#

Yeah, but I'd imagine any text serialization would be comparable. Unless the Json implementation you're using is particularly inefficient. You using the UE4 Json classes?

ocean wren Dec 30, 2016, 11:12 PM

#

I really do want something like a more concise json though.. its mainly slow because of all the pretty printing shit

#

yeah, using the UE4 ones

#

a lot of the slowdown comes from printing newlines etc.. so I'm probably going to write my own formatter for the json utils I think

#

Just seems strange to me that they don't have an ascii serializaer

floral vigil Dec 30, 2016, 11:14 PM

#

I'm using this in one of my projects: https://github.com/nlohmann/json

GitHub

nlohmann/json

json - JSON for Modern C++

#

The UE4 Json stuff just looked too nasty.

#

But performance wasn't relevant for me, so I can't say how it compares.

ocean wren Dec 30, 2016, 11:15 PM

#

problem is that I'm lazy and want to use the property system to serialize some stuff 😃

#

does this lib compile for UE4?

floral vigil Dec 30, 2016, 11:16 PM

#

Hmm yeah I was thinking that, you could probably save yourself some work by using the ExportText method, if you're familiar with using UProperty objects.

#

Yeah I didn't have any issues getting it working.

ocean wren Dec 30, 2016, 11:17 PM

#

I think the existing json UE4 classes use the .ToString on UProperties by default.. which is a bit lame

floral vigil Dec 30, 2016, 11:17 PM

#

It's just a single header file.

ocean wren Dec 30, 2016, 11:21 PM

#

uses std libs though right?

floral vigil Dec 30, 2016, 11:26 PM

#

Yes. I don't personally have a problem with using stl in UE4, though I guess could be am issue if you need to support all platforms.

#

I didn't realise UE4 had built in support for converting uobjects to Json actually.

#

But looking at the code, I can see why it would be slow. Lots of dynamic casting and memory allocations.

#

If you need to serialize arbitrary uobjects then you don't really have a choice though.

mental quarry Dec 31, 2016, 11:42 AM

#

Hiya, for some reason my AI character's OnPerceptionUpdated only gets triggered, when he sees the player, but not when he sees other Actor of custom blueprint class. Where should I configure this?

#

I guess it's related to affiliation. Basically I want my AI character to wander around until he sees an item on the floor, which he should then pick up. The item has no affiliation set and I am not sure how to do that in blueprint.

uneven cloud Jan 2, 2017, 3:25 AM

#

@mental quarry if the items are not pawns (which I'm guessing is the case), you need to register them with the AI perception. All pawns are by default auto registered. There's a component that you can add called AI Perception Stimuli Source to easily register them

#

Handling affiliation is not exposed to blueprint. At the very least you'll have to write some wrappers in C++. Here's a how to: https://answers.unrealengine.com/questions/406063/ai-perception-mark-player-as-enemy.html

mental quarry Jan 2, 2017, 11:09 AM

#

Thanks @Luthage, stimuli source works for my use case.

mental quarry Jan 2, 2017, 8:13 PM

#

Multiple 'Blackboard Based Conditions' on one node are combined with AND?

shadow falcon Jan 5, 2017, 12:26 AM

#

struggling to understand behaviour trees... is there a good tutorial out there?

vital jetty Jan 5, 2017, 7:45 AM

#

a couple tutorials on YT... https://www.youtube.com/user/asherseinhorn/videos @shadow falcon

shadow falcon Jan 5, 2017, 12:04 PM

#

neat thanks

shadow falcon Jan 5, 2017, 2:47 PM

#

pretty good series... i'm getting there

astral trout Jan 5, 2017, 9:56 PM

#

Yeah thanks for that @vital jetty! Super helpful.

vital jetty Jan 6, 2017, 10:20 AM

#

np guys, I have a ton of tutorials bookmarked since I've only been using ue4 for 2 months...

hardy musk Jan 6, 2017, 12:13 PM

#

Did someone here worked with nav mesh polys in c++?

tidal kraken Jan 6, 2017, 4:31 PM

#

Can someone please cure my insanity... I could have sworn it was possible to use AI MoveTo with pawns... is this true? false?

final tree Jan 6, 2017, 5:53 PM

#

has anyone used FMetaNavMeshPath?

mental quarry Jan 6, 2017, 6:58 PM

#

yes, @tidal kraken

tidal kraken Jan 6, 2017, 7:18 PM

#

@mental quarry so true or false?

mental quarry Jan 6, 2017, 7:19 PM

#

yes

#

ok ok, it is possible afaik

#

there's a blueprint function for that, that takes pawn, unless it doesn't work?

#

@tidal kraken

tidal kraken Jan 6, 2017, 7:22 PM

#

@mental quarry It doesn't... From everything I've read, it needs a movement component... And only Characters have movement components.

#

I'm just wondering if I'm missing something here

mental quarry Jan 6, 2017, 7:22 PM

#

hm, Characters are pawns, so that shouldn't be a problem

#

what I mean you still in the end need a character, so you're right, but I don't see why that's a problem

#

https://docs.unrealengine.com/latest/INT/Gameplay/Framework/Pawn/
seems there is some kind of 'DefaultPawnMovementComponent'

Pawn

The Pawn is the physical representation of a player within the world.

sweet apex Jan 6, 2017, 8:49 PM

#

AI move To need nav mesh

tidal kraken Jan 6, 2017, 9:10 PM

#

Yes. I undertand that. Trust me, I have all of the basics covered.

sweet apex Jan 6, 2017, 9:14 PM

#

Do you have Floating Pawn Movement Componenet on your Pawn ?

#

Then Under NaV Movement Tab

#

Tick What your pawn can do

#

here

#

https://gyazo.com/8eee8ed86107edd1fb75fde0ccbdef9f

Gyazo

#

This is how looks my Settings from one Ai

#

https://gyazo.com/b51c4cefdb3a0932b24cf208f8f7de9f

Gyazo

lavish lotus Jan 8, 2017, 12:03 AM

#

I'm using an Event Tick on another actor to spawn in my AI.

The problem is he's not moving.

Still animating but not moving

#

any help?

#

nvm found the check box

viscid oasis Jan 8, 2017, 12:57 AM

#

If I attach an object to a socket, then take that same component and attach it to another socket, does the first socket detatch automatically?

#

Or does it kinda think the object is still attached?

worldly berry Jan 8, 2017, 9:02 PM

#

@lavish lotus one reason could be that you havent set the ai to use the controler which plays the behavior tree or the other reason would be that you havent got a properly workinh nav mesh

#

but to give you more advice some photos would be helpful what tasks you set the ai to do in the behaviour tree

eternal halo Jan 10, 2017, 8:20 PM

#

When I call Jump on my AI pawn it seems to call it endlessly

#

Stop Jumping doesn't want to work

solid osprey Jan 10, 2017, 8:43 PM

#

i haven't set up the logic before but it hink you need some kind of doOnce logic for jumping

#

remember seeing something like that in a tutorial

#

doOnce or a Gate or something like that

#

i need some way of interrupting a sequence then returnign to the part of it i left from

#

in behaviour tree

edgy aspen Jan 12, 2017, 6:44 AM

#

When I put a Blackboard Based condition of MyBool is Set, does that mean exectuion will trigger of the bool is true?

#

Why is this node executing when IsTargeting is true? http://i.imgur.com/f2823fA.jpg

#

setting condition to "aborths both" seems to yield desired behavior

#

still not sure how it workls

vital jetty Jan 12, 2017, 8:33 AM

#

the only reason I can think of is that your blink blue is not ending, therefore preventing the condition from being evaluated

eternal halo Jan 12, 2017, 8:43 AM

#

My AIMoveToActorOrLocation doesn't seem to move at the AI pawn's movement speed on character movement component. Is this normal?

edgy aspen Jan 12, 2017, 9:34 AM

#

@vital jetty thank you, that makes sense.

eternal halo Jan 12, 2017, 9:52 AM

#

turns out i was tweaking the wrong setting

eternal halo Jan 12, 2017, 10:34 AM

#

I've got kind of an odd question for AI

#

My project is a 2D smash clone

#

If the AI is in the air mid jump

#

How would I aim his jump or move him without overriding his movement mode like the pathing does

#

For example

#

If he is over the edge and at risk of falling out of bounds

#

How would I call Jump and provide movement input

#

Right now I target a point at the center of the stage and call moveto but it just makes him fly there

loud thunder Jan 12, 2017, 3:17 PM

#

Sorry for the newbie question but should AIPerceptionComponent go on Character or AIController?

floral mango Jan 12, 2017, 3:18 PM

#

it's a member of AIController

loud thunder Jan 12, 2017, 3:19 PM

#

So it automagically uses the location/rotation etc of the controlled pawn?

#

That makes a lot more sense than having it on the Pawn/Character and signaling the controller "hey I see something, what now".

floral mango Jan 12, 2017, 3:19 PM

#

yeah, controller makes sense too :>

#

sposed to use GetPerceptionComponetn and SetPerceptionComponent in 4.14 too

#

or deprecation nag nag nag

loud thunder Jan 12, 2017, 3:20 PM

#

Okay, thanks. So I guess I have to create one and SetPerceptionComponent.

floral mango Jan 12, 2017, 3:21 PM

#

yip I just create and set it in constructor

loud thunder Jan 12, 2017, 3:21 PM

#

Thanks 😃

versed grotto Jan 12, 2017, 4:59 PM

#

Can someone help me with the "Get random point in navigable radius" node? Can't get it to work... It always outputs at 0,0,0 location

dim hamlet Jan 12, 2017, 9:33 PM

#

@versed grotto Try using a Navigation Data reference variable and it your navmesh. Also make sure the location you're calling from is in the nav mesh

#

https://gyazo.com/9c6a9137f4e1c04b5452931ea49adb98

Gyazo

versed grotto Jan 12, 2017, 9:36 PM

#

hmm, thats how i did it. Wait a sec i will take a screenshot

#

@dim hamlet i guess the problem is the navmesh data? How exactly do you get it.

#

http://imgbox.com/MqXFP9fw

Use imgbox to upload, host and share all your images. It's simple, free and blazing fast!

#

and the actor is placed on the navmesh

dim hamlet Jan 12, 2017, 9:42 PM

#

Try calling it in your actor's details like this: https://gyazo.com/359baf7d6199f5426cb24d317309fdfd

Gyazo

versed grotto Jan 12, 2017, 9:46 PM

#

ahh, not it works 😄 Thanks a lot. I wasn't sure what exactly they needed as Nav Data input

#

now*

dim hamlet Jan 12, 2017, 9:56 PM

#

No problem!

glacial harbor Jan 15, 2017, 3:53 AM

#

how do you get the final destination of an AI? I see I can get the immediate one but what about the goal location?

#

oh nvm

lavish lotus Jan 15, 2017, 5:47 AM

#

Why is my floating pawn movement for my character not rotating towards me?

#

📎 FloatingSkullMove.JPG

#

📎 FloatingSkullVis.JPG

#

The head moves toward me but doesnt look at me

tepid basin Jan 15, 2017, 7:10 AM

#

no idea if it's a bug because I don't know much about AI but I think you can rotate it towards the target using LookAtRotation to calculate the rotation you need

lavish lotus Jan 15, 2017, 9:29 AM

#

I had to check boxes call follow control rotation and then it worked!

#

Floating movement's not working. They don't move unless theres a nav mesh and I want them to move in air

mortal hornet Jan 15, 2017, 9:30 AM

#

hi, in the air with now ground under ?

#

they can still use the navmesh even if floating if you want to

#

and yup the follow control rotation is the thing to do ^^

lavish lotus Jan 15, 2017, 9:38 AM

#

It only works if its a certain distance above the nav mesh

#

200 above the nav mesh- fine
300 above the nav mesh- nope

mortal hornet Jan 15, 2017, 9:40 AM

#

why don't you just offset the model leaving the capsule on the ground ?

#

or just resize the navmesh bounds volume to be tall enough

lavish lotus Jan 15, 2017, 9:43 AM

#

Nav meshes are 3d like that??

#

thats probably it

#

Nope wasnt it

mortal hornet Jan 15, 2017, 9:47 AM

#

theres is a influence volume for it

#

let me start my editor ^^

lavish lotus Jan 15, 2017, 9:47 AM

#

❤

#

Thanks

mortal hornet Jan 15, 2017, 9:51 AM

#

got some compile time sorry

lavish lotus Jan 15, 2017, 9:52 AM

#

.<

📎 2017-01-15_03-37-01.flv

#

That's okay! Just gonna keep trying things

mortal hornet Jan 15, 2017, 9:55 AM

#

(man that's frightening)

lavish lotus Jan 15, 2017, 9:56 AM

#

Thanks! It's scarier in VR

mortal hornet Jan 15, 2017, 10:02 AM

#

how do you make htem fly ? are they characters ?

lavish lotus Jan 15, 2017, 10:03 AM

#

They are pawns

#

with a floating pawn movement component

#

and pawn sensing

#

Pawn Sensing > AI Move To>

#

📎 FloatingSkullMove.JPG

#

It just doesn't make sense that they have to be within a certain z of the nav

mortal hornet Jan 15, 2017, 10:08 AM

#

floating : flying ?

lavish lotus Jan 15, 2017, 10:09 AM

#

Movement Capabilities: (AgentRadius=-1.000000,AgentHeight=-1.000000,AgentStepHeight=-1.000000,NavWalkingSearchHeightScale=0.500000,PreferredNavData=None,bCanCrouch=False,bCanJump=False,bCanWalk=False,bCanSwim=False,bCanFly=True)

#

I think floating is flying at least?

mortal hornet Jan 15, 2017, 10:11 AM

#

yeah ^^

#

the easiest way would me to keep the capsule on the ground and offset the model

lavish lotus Jan 15, 2017, 10:12 AM

#

weird

#

Well I'll keep looking at different stuff

#

The problem is stuff like bridges. I want them to come from almost nowhere, even on different planes

mortal hornet Jan 15, 2017, 10:17 AM

#

you may have to work on a 3D pathfinding of your own

#

or have a specifig navmesh for these guys

lavish lotus Jan 15, 2017, 10:21 AM

#

Is there any way I can have it ignore a nav mesh?

mortal hornet Jan 15, 2017, 10:21 AM

#

but without a real 3D navmesh that you will have to develop you'll only rely on hacky techniques

#

yeah don't use AI move to

#

but interpolate movement yourself

lavish lotus Jan 15, 2017, 10:23 AM

#

I wish I could understand BlackBoard stuff

#

I try but it just all starts going over my head

mortal hornet Jan 15, 2017, 10:29 AM

#

yeah it took some time for me too

floral mango Jan 16, 2017, 7:58 PM

#

q: how are you supposed to handle losing sight of something with AI perception

#

OnPerceptionUpdated just gives you a list of actors that have either been seen, or have lost sight

#

how do you tell between the two events?

#

or does it assume you're setting FocusActor on sight, and checking if the actor is your current focus to see if it's the lose sight event?

#

or check against GetPerceivedActors...

tepid basin Jan 16, 2017, 8:26 PM

#

@floral mango I think in a prev update they seperated between the ones you lose sight of and the ones you just saw, made it into diffrent functions or something, in a major update before 4.14, can't remember correctly so I can be wrong

floral mango Jan 16, 2017, 8:32 PM

#

ah I'm slowly figuring my round this component

#

dunno why sometimes GetCurrentlyPerceivedActors sometimes returns the Controller it's a member of

#

ugh I give up for today

cyan sigil Jan 17, 2017, 6:19 AM

#

I am making an elevator in my game and I'm trying to use AI instead of just scripts on the blueprint.

#

Should I create an AI service that moves the blueprint each frame or should I use a Floating character Movement component and give it a "Move To" command?

acoustic apex Jan 17, 2017, 7:43 AM

#

Sup, everyone!
I have a problem using navmesh bound volume.

I can use only box shape, other shapes are interpreted as boxes
If I rotate navmesh volume, navigation projection is not affected by rotation. Volume is rotated, but projection is not. It's area becomes bigger to consume volume vertexes projections and that's all.

Is there anything I can do, to solve that problem?

#

Box volume rotation

📎 unknown.png

sly ibex Jan 17, 2017, 5:00 PM

#

Anyone have experience using this? http://kythera.ai

Kythera

Kythera - Cutting-Edge Games AI

Introducing Kythera, the cutting-edge artificial intelligence solution for the next generation of games. Built for dynamic environments, high performance and fast iteration.

flint trail Jan 17, 2017, 5:04 PM

#

no licensing options listed and Star Citizen is one of the use cases 🙄

#

probably expensive

mortal hornet Jan 18, 2017, 8:30 AM

#

@acoustic apex Navmesh bound volumes are AABB so I doubt theres a solution for this.

acoustic apex Jan 18, 2017, 8:38 AM

#

@mortal hornet That makes me sad. Also, navmesh bound modifiers are ok, they can be rotated and their shapes (not entirely) can be midified

mortal hornet Jan 18, 2017, 8:42 AM

#

@acoustic apex yeah you can use modifiers to shape the navmesh inside the volume by marking excluded regions

#

using NavArea_Null as a class in the volume

#

Or NavArea_Obstacle

vital jetty Jan 18, 2017, 8:00 PM

#

guys, is it better to store stuff in blackboard or just directly on my AI Controller class or AI class?
like I need to store a variable which is used, for now at least, by exactly one decorator
the stuff that's used in multiple places went into blackboard, but I'm having doubts about the 'used in one place only' stuff

#

any ideas?

eternal halo Jan 19, 2017, 12:14 AM

#

So I can't rotate a nav mesh for AI that jumps

#

It can't move while it's in the air because it jumps off the nav mesh

haughty quail Jan 20, 2017, 2:46 AM

#

Hi guys, I am planning to implement companion to my playercharacter in my game but I don't know where to start that. I have few ideas like using targetpoints to navigate the companion or bundling the companion and the player character in the same blueprint so that companion follow the player but I don't know how to animate it or using the AI. Need a better solution to figure this out ?

glass pilot Jan 20, 2017, 3:52 AM

#

Making Characters respawn upon being killed is really a pain. Atleast in BP

floral mango Jan 20, 2017, 11:01 AM

#

@haughty quail would make an AIController for the companion and implement whatever behaviours you want in there

glass pilot Jan 20, 2017, 5:22 PM

#

Someone followed asher einhorns AI respawn youtube guide? part 9 with respawns is giving me a lot of problems. IF anyone know a fix i would love you forever.

livid hawk Jan 20, 2017, 5:22 PM

#

guys hello, any idea how to display pawn's perception widget in the editor when playing/simulating ? i need to click on a pawn to see it's perception widget

#

going to project settings/gameplay debugger , assign a key to it and press that key during simulation doesn't display anything

#

(show/developer/AI debug is ticked on )

glass pilot Jan 20, 2017, 5:24 PM

#

@jade sparrow all i did to activate the percetion was enable it and crossing the override slot idx

#

perception*

livid hawk Jan 20, 2017, 5:25 PM

#

what do you mean crossing the override slot tho ? 😄

glass pilot Jan 20, 2017, 5:25 PM

#

like this

#

https://gyazo.com/2d7880375de0f03c9aadeae43e4592bc

Gyazo

ocean wren Jan 20, 2017, 5:25 PM

#

vonpillows: you need to be in a in-game camera view like an fps view, then press the ' key while looking at an AI to see the perception in AI debugger.. press tab ones you have the right one highlighted

livid hawk Jan 20, 2017, 5:25 PM

#

ok, also the perception component is added to the AI controller right ? not the pawn

ocean wren Jan 20, 2017, 5:25 PM

#

and you can then fly cam

#

press the ' key again to stop viewing its perception.. press ' while looking at another one etc.. its kind of clunky

livid hawk Jan 20, 2017, 5:29 PM

#

@ocean wren " vonpillows: you need to be in a in-game camera view like an fps view, then press the ' key " would you know where to rebind that key ? is it the "activation key" in the gameplay debugger ?

ocean wren Jan 20, 2017, 5:30 PM

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its in editor settings somewhere yes I think it might be the activation key

livid hawk Jan 20, 2017, 5:51 PM

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(btw , AI debug and Gameplay debug should both be checked when AI debugging)

#

btw² thanks for helping guys

keen hedge Jan 20, 2017, 6:19 PM

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Guys I'm having a rough time getting started with a simple enemie AI, It's just sliding toward (it should be walking) Any Idea why is this happening, I was pretty sure It's in the animation blueprint but no I checked many times! I'd apperciate the help guys 😃

livid hawk Jan 20, 2017, 6:35 PM

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it sounds like the vars of the anim blueprint aren't updated correctly @rancid flume

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how's the event graph of your animBP ? does it gets the pawn ower correctly ? does it feeds the correct variables into the state machine ?

#

if you print the variables of the state machine, what are the results etc

keen hedge Jan 20, 2017, 6:37 PM

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I'm pretty sure it does! would a screenshot be helpful

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YES

livid hawk Jan 20, 2017, 6:39 PM

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but i'm not sure the issue comes from this either so 😃

keen hedge Jan 20, 2017, 6:39 PM

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yes*

livid hawk Jan 20, 2017, 6:40 PM

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sorry i'm eating atm, dibbicult to tybe

keen hedge Jan 20, 2017, 6:40 PM

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I'll provide you a screenshot and I hope It'll be easily identifiable, the beginning always sucks :p

livid hawk Jan 20, 2017, 6:40 PM

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sure

keen hedge Jan 20, 2017, 6:40 PM

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xD no problem bro

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Event graph: https://gyazo.com/5113943c9bf434c85c68518ace8509a1
Simple 1d blendspace: https://gyazo.com/c2eae2d4a78b2a30828d950c9353fd89

Gyazo

livid hawk Jan 20, 2017, 6:50 PM

#

Zack ok looking at it

keen hedge Jan 20, 2017, 6:51 PM

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Thanks for your time 😃

livid hawk Jan 20, 2017, 6:51 PM

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can you place a print on the cast failed ?

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also, can you print all the speed vars ? 😄

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also, why make several tryGetPawn owners ? maybe getting it once and then caching it could help

keen hedge Jan 20, 2017, 6:53 PM

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I'm just getting started with blueprint :p I wish I could, I'll try but I'm not sure do I drag a branch or directly print ?

livid hawk Jan 20, 2017, 6:54 PM

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place a print node and then plug the var to the string, it will be casted automatically

keen hedge Jan 20, 2017, 6:54 PM

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By the way the animBP was a copy of the main character just edited cast to and few simple things and I didn't understand the tutorial good but got the main character working

livid hawk Jan 20, 2017, 6:55 PM

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also, maybe your anims aren't correctly placed in the blendspace, like you placed 3 anims ( 2 idle and a run anim very close to the 2nd idle or something like this )

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aah also

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if your speed output is from 0 to 10 or 15 and the anim requires 0 to 375 you need to multiply

keen hedge Jan 20, 2017, 6:55 PM

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oh no I'm sure I didn't

livid hawk Jan 20, 2017, 6:55 PM

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ye that's me brainstorming issues

keen hedge Jan 20, 2017, 6:56 PM

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That's me realizing how "I don't know shit about ue4" :p

livid hawk Jan 20, 2017, 6:56 PM

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heh it's fine wer're all learning oh um

keen hedge Jan 20, 2017, 7:00 PM

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Check pm 😃

supple nacelle Jan 20, 2017, 7:42 PM

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navmesh question...how to close navmesh gaps between objects? have reduced agent radius, but still getting strange gaps in navmesh

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making progress on this. i have multiple nav data. one for ai, and one for player (different capsule sizes). the player nav data is not showing up when 'enable drawing' is enabled in recast. enemy nav data does show up, and doesn't draw as intended when disabling 'enable drawing'

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so i guess the question is really just how to display a debug RecastNavMesh which is of a second agent type?

supple nacelle Jan 20, 2017, 8:24 PM

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yup. good ol' fashion editor restart ftw 😃

glass pilot Jan 20, 2017, 9:16 PM

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Question: I have a error message I'm trying to solve, it's about my player controller respawn

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https://gyazo.com/798256ba381a3b3d24c864dfba5d7046

Gyazo

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It wont read my Combatant Died Function that i created in a my CharacterManager BP, its suposed to manipulate multiple behaviors and tasks.

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If anyone may know how to solve it i'd love to provide Screen shots in pm

glass pilot Jan 20, 2017, 10:11 PM

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I solved it.

livid hawk Jan 20, 2017, 10:35 PM

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can't display perception component infos tho

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i can see them if i click on the pawn in simulate mode, but not in "normal" play-mode or when possessing the player

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hitting * while targeting a pawn having a perception component in it's AI component doesn't work

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same for displaying EQS Data, can't seem todo that yet

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i can see the EQS data ( all the sphere with their captions ) when selecting the EQS pawn in edit mode, but can't see that in play-mode

livid hawk Jan 20, 2017, 10:57 PM

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yea, https://forums.unrealengine.com/showthread.php?50276-How-to-use-Gameplay-Debugger

Hi!

While trying to debug my EQS problem, I've stumbled upon GameplayDebugger module. It seems to be a very powerful tool, but I have no idea how to use it.
Can you give me some tips?

#

The easiest way to do it is to run the game, aim at the AI (or just have it more or less at the center of the screen), and press ' key (quote).

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can't seem to be able to do that ^

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i do see the perception widget of a pawn if i click on it in simulation, but even there, can't see the EQS Pawn widget if i click on it

livid hawk Jan 20, 2017, 11:57 PM

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( reading the doc and finding un-official youtube channels ATM , already feeling there's more "up-to-date" info )

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( it's kind of a bummer, i understand a lot of ppls have it working etc )

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also hopping the world outside unrealengine isn't going to world war 3 or anything crazy

#

looks like that tutorial website is down and had valuable info ... http://www.unreal-ai-tutorial.info/ it's quoted everywhere

unreal-ai-tutorial.info is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, unreal-ai-tutorial.info has it all. We hope you find what you are searching for!

glass pilot Jan 21, 2017, 12:16 AM

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What kind of virus is that website you linked?

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Kept opening new websites

livid hawk Jan 21, 2017, 12:19 AM

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you can see lots of users are linking to that website like

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BTW, to learn more about EQS, take a look at: http://unreal-ai-tutorial.info/ . That's the resources site of Mieszka Zielinski, the guy from Epic responsible for it.

It can actually do a lot. One of the recent Epic Twitch streams were about it.

unreal-ai-tutorial.info is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, unreal-ai-tutorial.info has it all. We hope you find what you are searching for!

#

from

glass pilot Jan 21, 2017, 12:19 AM

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would you answer the question?

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It's opening different website all the time.

livid hawk Jan 21, 2017, 12:19 AM

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i'm answering the question, can you read ?

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...? ok one sec, checking the link

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can you read that it's the website from the guy who designed EQS sytem at epic and that many users are talking about it on the forums ?

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aw f___ it's redirecting to many crap websites now

glass pilot Jan 21, 2017, 12:20 AM

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@pallid mica & @stone anvil

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Can you guys say you know about that site?

livid hawk Jan 21, 2017, 12:21 AM

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look, it's mentioned here too https://answers.unrealengine.com/questions/93192/how-to-work-with-eqs-environmentquery-documentatio.html

glass pilot Jan 21, 2017, 12:22 AM

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The mentionen website opens from that last link

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but the previous one you linked is opening all kinds of random stuff.

livid hawk Jan 21, 2017, 12:23 AM

#

it was " http://ww1.unreal-ai-tutorial.info/ " so i replaced it with " http://wwW.unreal-ai-tutorial.info/ "

unreal-ai-tutorial.info is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, unreal-ai-tutorial.info has it all. We hope you find what you are searching for!

#

thinking ww1 couldn't be the right name ( as it's always www , not ww1 )

#

anyway, Mieszka Zielinski's intel seems to be gone, sadly

pallid mica Jan 21, 2017, 12:24 AM

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They are both not working for me

livid hawk Jan 21, 2017, 12:25 AM

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can't seem to have EQS data to display properly while testing the game

pallid mica Jan 21, 2017, 12:25 AM

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The linked one is also not working xD

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The one in the AnswerHUB

livid hawk Jan 21, 2017, 12:26 AM

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hm hm : )

pallid mica Jan 21, 2017, 12:26 AM

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They are all empty

livid hawk Jan 21, 2017, 12:27 AM

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gosh next time i refer to external ressources i will make it clear that they're legit

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i didn't mean to be confusing

pallid mica Jan 21, 2017, 12:28 AM

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That's all fine, I'm just saying that non of these sites work

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Probably taking offline by Mieszko

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Even if you go over the links from his tweets it's offline

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so hm

livid hawk Jan 21, 2017, 12:29 AM

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yes indeed so hum gotta find some other infos

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basically, all the tutorials to display AI debugger info are refering to an older version of UE4

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where you could enable these infos from EditorPreferences/General/GameplayDebugger

pallid mica Jan 21, 2017, 12:30 AM

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http://miechu.nazwa.pl/aitutorial_joomla/index.php/9-blueprint-ai/13-t06-environment-querying-system

MieszkoZ

Making Unreal Engine 4 AI do what you want it to do!

#

Maybe that?

livid hawk Jan 21, 2017, 12:30 AM

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!!!!! omg it'd be amazing

pallid mica Jan 21, 2017, 12:30 AM

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That's the only EQS Mieszko stuff i found

livid hawk Jan 21, 2017, 12:31 AM

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well congrats Cedric, nice find

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sorry btw @glass pilot didn't wanted to post 'spammy-like' stuff , i'll do things differently next time

#

half-found the solution, the EQS pawn has a checkbox " should be visible in game "

#

still need to select it in simulate mode, not sure how to have the whole " aim at an object and press tilde to show gameplayDebugger info " thing working

worn yarrow Jan 21, 2017, 3:17 AM

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hey is anyone doing vehicle pathfinding in 4.14?

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i can't seems to get pahtfinding to work after 4.14... any pathfinding would result in failure for vehicles

#

also notice the Can Wawlk Can Fly booleans are gone on vehicle

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crap just found out the cause... it's no longer extending from PawnMovementComponent but from MovementComponent

worn yarrow Jan 21, 2017, 3:48 AM

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anyone knows any workaround that still allow me to use vehicle's pathfinding functionality post 4.14?

last fjord Jan 21, 2017, 4:34 PM

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ue 4.14 has new physx and bunch of vehicle changes related to that + other related work, it's possible they changed it or just outright broke it 😃

worn yarrow Jan 21, 2017, 6:30 PM

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@last fjord i foudn the cause to be the fact that WheeledMovementComponent no longer inherit from pawnMovementComponent thus losing all navigational capability

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they used to be inherited from PawnMovementComponent ( which in turn inherit from NavMovement ) .

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so now they can't use navmesh , they can't use pathfollowingcomponent... sigh.. all gone... i've to roll out custom functionalitieis now

last fjord Jan 21, 2017, 6:32 PM

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ah, they don't do that anymore?

worn yarrow Jan 21, 2017, 6:32 PM

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nope

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they're directyl inherited from MovementComponent

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bypasses everything

last fjord Jan 21, 2017, 6:32 PM

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ah

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yeah, it would

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I save the inheritance tree just a while ago so that makes perfect sense to me

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although no idea why they did that 😄

worn yarrow Jan 21, 2017, 6:32 PM

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i'm fine with no NavMovementCOmponent but pathfollowing depends on it. so there's another issue

last fjord Jan 21, 2017, 6:32 PM

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did the vehicle pathfinding work properly for vehicles?

worn yarrow Jan 21, 2017, 6:33 PM

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well.. not out of the box

#

but a lot of the thigns work once u connect the dots

last fjord Jan 21, 2017, 6:33 PM

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I have no idea how useful that would have been

worn yarrow Jan 21, 2017, 6:33 PM

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e.g you can use MoveTo

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the vehicle don't move per se... but you see where it's trying to input

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so u can just overrid the direction with a steering behavior

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it will also autodetect when it's at the immediate destination and then updates the immediate destination

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all pathing data , immediate destination , move status and all the useful stuff works

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suffice to say , the only thing it doesn't do is push the vehicle , everything else works

vital jetty Jan 21, 2017, 6:45 PM

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@worn yarrow: I once attempted to get navmesh working for vehicles and it would always fail, glad that you found the reason

last fjord Jan 21, 2017, 7:09 PM

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@vital jetty on 4.14?

vital jetty Jan 21, 2017, 7:09 PM

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yeah

lavish lotus Jan 21, 2017, 9:15 PM

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How do i use Blackboards/BehaviorTrees with state machines:

📎 AIQ1.png

#

📎 AIQ2.png

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Oh why is my Behavior tree not working? it doesnt seem to be firing agro check

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Figured out that my character is returning false getting the line visibility trace from camera in the AgroCheck:
https://docs.unrealengine.com/latest/images/Engine/AI/BehaviorTrees/QuickStart/11/fullGraph.png

worn yarrow Jan 22, 2017, 4:10 AM

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behaviors tree have nothing to do with state machiens. as those are animation ( state machiens )

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not Finite State machiens

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as for animation , you only transition using any data of your liking

lavish lotus Jan 22, 2017, 7:47 AM

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Sorry for the late reply.

So we have a bunch of Booleans set up to transition in between state machines. I would cast and change them in the tasks?

Also my behavior tree wasn't running cause it failed valued none on "is at location" and the selectors "blackboard based condition"

sly sequoia Jan 23, 2017, 5:59 PM

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Yes, you could in theory get your animation blueprint from your character and query the boolean members to make transitions in your behavior tree.

solid osprey Jan 24, 2017, 2:55 AM

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any ideas why this doesn't set blackboard

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https://gyazo.com/a91c34ba5bd754a5ab83779bc491d637

Gyazo

lyric flint Jan 24, 2017, 10:28 AM

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@solid osprey make sure to get the ai controller then set the blackboard to it

solid osprey Jan 24, 2017, 3:50 PM

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@lyric flint that is the aicontroller?

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previously i just got the behaviour tree and all worked good but i want to set some defaults in the blackboard

vital jetty Jan 24, 2017, 4:17 PM

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@solid osprey I'm using make literal name for the set xxx as yyy nodes in ai controller. works as a charm

solid osprey Jan 24, 2017, 4:18 PM

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i got it working

vital jetty Jan 24, 2017, 4:18 PM

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drag from key name and type make li... and you'll get the node

solid osprey Jan 24, 2017, 4:18 PM

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was putting int as default variablename like a moron

lyric flint Jan 24, 2017, 5:25 PM

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Hahaha it's ok man we all make mistakes haha

solid osprey Jan 24, 2017, 10:11 PM

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i need to make navmesh go over an empty gap

#

not to jump, use navlink, etc

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using an invisible mesh taht hasn't go collisions but still 'affects pawn'

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thus allowing the navmesh to be generated

glass pilot Jan 24, 2017, 11:42 PM

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Anyone got tips on where to find information about vehicle AI setups? I know how it usually works, but can't get it to even move.. Using Wheeled vehicle AI

vital jetty Jan 25, 2017, 9:35 AM

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the only vehicle AI I'm aware of is Peter Newton's

#

@glass pilot

half vessel Jan 25, 2017, 1:59 PM

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Hi all, Got this slight problem with my AI, When my character runs into the ai tank it pushes it way and stops it from moving towards the waypoint it was heading for 1 sec. Then tries to get there again. How ever if the tanks just runs into my stationary character the on component hit won't fire and the tanks repetitaly hits my character. Any clues to way it doesn't work when the tanks hit my stationary/(not moving him) character

#

?

#

Perhaps worth noting is that my Tank core which hits the character is a static mesh set to moveable and not a skeletal mesh

glass pilot Jan 25, 2017, 2:35 PM

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@vital jetty yeah me too, but he is doing some weird things to his AI

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He only makes it follow nodes in order of 1-2-3-4 and so forth, he is using "Prev" and "Next" node. Im trying to get a more random location. The way he sets the vehicle direction calc and speed calc is also really odd and not really necessary imo

steady frost Jan 25, 2017, 3:16 PM

#

Would it be possible to do AI in c++

#

Or would it be better to do it in blueprint

glass pilot Jan 25, 2017, 3:34 PM

#

If you can do c++ go for it

vital jetty Jan 25, 2017, 4:25 PM

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@glass pilot: plugging randomness in into his code is fairly easy. as for vehicle direction and speed, I used the c++ code from this: https://github.com/runeabrahams1/Unreal-Engine-4-Bicycle-Simulator-with-AI/blob/master/Source/BikeV3/VehiclePathFollowingComponent.cpp

GitHub

runeabrahams1/Unreal-Engine-4-Bicycle-Simulator-with-AI

Unreal-Engine-4-Bicycle-Simulator-with-AI - A bicycle simulator made in Unreal Engine 4. It includes AI for cars, cyclists and pedestrians.

#

(mostly because I agree, his direction and speed calculations are weird)

glass pilot Jan 25, 2017, 4:27 PM

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Yeah, I'll have to take a look at that one. I actually deleted all stuff i used from him. Figured i'd make something easier myself

#

Have yet to succeed though lol

vital jetty Jan 25, 2017, 4:28 PM

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Peter Newton's stuff is a good starting point

#

I think I still have his nodes shuffled somewhere to the side of my actual blueprints

glass pilot Jan 25, 2017, 4:31 PM

#

Yeah i tried work with some of the ideas he used as well

#

im trying to give you a SS but gyazo has internal erro

#

lovly

#

😛

#

https://gyazo.com/18e86ed9922a842dcd2204d4b9434296

Gyazo

#

off to a good idea start atleast

vital jetty Jan 25, 2017, 4:41 PM

#

find path to location synchronously? is it an engine node?

glass pilot Jan 25, 2017, 6:42 PM

#

Im really not sure

#

@vital jetty Found it on ZomBPir8ninjas blog guide

#

He seemed to get it working with it

vital jetty Jan 25, 2017, 6:43 PM

#

zombpirninja ... I wish he wrote more than just the barebones guides

#

his approach looked great

glass pilot Jan 25, 2017, 6:44 PM

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Yeah I know, was very little information, but that makes whoever use it more knowledgeble

#

If it was just copy paste no one would understand what they did to make it work :p

lyric flint Jan 25, 2017, 7:01 PM

#

Any ideas why no actors get perceived?

📎 unknown.png

#

📎 unknown.png

#

and i did check affiliation settings

hard ledge Jan 25, 2017, 8:40 PM

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anyone know why my ai wouldnt move? it has a character movement component, it has the pawn sensing. It finds a random spot and never makes it cause it wont move and if i trip its sensor it will look at me but not chase. I have the walk speed set as well
http://prntscr.com/e0bmw1

Lightshot

Screenshot

Captured with Lightshot

lyric flint Jan 25, 2017, 8:45 PM

#

did you setup the nav mesh?

hard ledge Jan 25, 2017, 8:45 PM

#

yes

#

http://prntscr.com/e0bq7k

#

it appears even though walk speed is set it goes to 0 on run for some reason...

#

i will figure it out, thanks, likely a 0 set somewhere im not seeing

glass pilot Jan 25, 2017, 10:21 PM

#

Try crossing the last nodes

#

Set them to true and it may walk.

steady frost Jan 25, 2017, 11:54 PM

#

Can someone join our call and help us

glass pilot Jan 26, 2017, 12:17 AM

#

So frustrating that MoveTo and reachedMoveGoal and such task in behavior tree is locked to character movement component only. Like do UE4 even care about cars? :C

steady frost Jan 26, 2017, 12:20 AM

#

Please "D

supple pasture Jan 26, 2017, 5:09 AM

#

does anyone have time for answering simple question on the behavior tree xD

warm arrow Jan 26, 2017, 5:19 AM

#

What's your question?

half vessel Jan 26, 2017, 8:56 AM

#

If on perception updated isn't firing perhaps you set the perheral vision to great. It can max be 180 degrees. Higher then that and it won't fire @lyric flint

lyric flint Jan 26, 2017, 8:57 AM

#

So what should i do if i need them to see 360?@half vessel

half vessel Jan 26, 2017, 9:19 AM

#

2 sec

#

it measures from the center and out towards one side. Meaning if you set it to a 45 degree peripheral vision then enemy sight will be 90 degrees. So for a 360 degree vision you need to set it at 180 degree peripheral vision. This took me hours to debug yesterday and it seems to be a shity way to set it up. Useally when you talk vision radius you talk about the whole spectrum, not from the center and outwards.

#

@lyric flint

#

@hard ledge well i think you are just telling it to go to it's own position, I'm guessing the "get random points in navigble radius" doesn't find one.

glass pilot Jan 26, 2017, 6:18 PM

#

Anyone here gotten a Vehicle AI to work? I'm only looking for a way to make it move, if possible not along target points 1-2-3-4 and so on, more random would be great.

glass pilot Jan 26, 2017, 6:37 PM

#

Would also like to know if it is better to approach vehicle AI movement with CPP instead of BP.

vital jetty Jan 26, 2017, 7:27 PM

#

@glass pilot: I got a working vehicle AI and I have zipped the project source this morning for someone else who wanted a look - do you want it?

glass pilot Jan 26, 2017, 7:49 PM

#

@vital jetty That would be really kind of you, at this point I really do feel stuck. Send it here or PM, whichever you want. I really appreciate you taking the effort for something like this!

#

😄

flint trail Jan 26, 2017, 8:16 PM

#

@vital jetty a tutorial about vehicle AI in BP would be nice 😉

vital jetty Jan 26, 2017, 8:17 PM

#

@flint trail: that tutorial wouldn't be purely bp, because the movement is driven by cpp

#

and I'd be VERY hard pressed to translate the cpp to bp because it's a bunch of maths that's not even mine, but found on github

flint trail Jan 26, 2017, 8:19 PM

#

😦

stable dew Jan 27, 2017, 1:14 AM

#

@vital jetty you've got yourself a deal

#

Send ze files my way :p

humble socket Jan 27, 2017, 4:36 AM

#

this is a really basic question, but Im having a hard time finding an answer, but how do I make an AI move to a random position within bounds?

stable imp Jan 27, 2017, 4:55 AM

#

Does this work ? You could keep retrying until it was inside a shape if the shape was not a circle https://docs.unrealengine.com/latest/INT/API/Runtime/Engine/AI/Navigation/UNavigationSystem/GetRandomPointIn-/2/index.html

Finds random, point in navigable space restricted to Radius around Origin.

humble socket Jan 27, 2017, 4:55 AM

#

My issue is actually moving the AI

stable imp Jan 27, 2017, 4:56 AM

#

something can execute MoveToLocation with that as the destination

humble socket Jan 27, 2017, 4:56 AM

#

moveToLocation isnt working

#

And not sure why

stable imp Jan 27, 2017, 4:57 AM

#

I think moveto can fail for many reasons, unable to make a path, already at the path, etc. can you get the return value and read it?

#

you will need a navmesh bounds for the path follower to figure out where to navigate

humble socket Jan 27, 2017, 5:06 AM

#

Hmm, yeah I dont know why this isnt working

#

Does MoveToLocation need to be constantly executed?

stable imp Jan 27, 2017, 5:08 AM

#

no

#

check the return value though

#

i guess if the return value failed, you may want to try again later, depending on the reason

humble socket Jan 27, 2017, 5:09 AM

#

Uh, how do I do that with blueprints

stable imp Jan 27, 2017, 5:09 AM

#

can you drag a node from RETURN and make a switch?

#

i dont know myself, but i know there is a node for return value, it should be an enum

#

try print string debugging, or you can right click a node and add a breakpoint

humble socket Jan 27, 2017, 5:11 AM

#

What am I looking for though?

#

The location never changes

stable imp Jan 27, 2017, 5:12 AM

#

📎 movetoswitch.PNG

#

its gonna be AlreadyAtGoal or Failed or Success

#

i think

humble socket Jan 27, 2017, 5:13 AM

#

Oh I was using SimpleMoveToLocation

#

Its saying success

#

But its not moving what so ever

stable dew Jan 27, 2017, 9:28 AM

#

@humble socket do you have a navmesh in the map?

half vessel Jan 27, 2017, 4:56 PM

#

anyone got a min to talk about the BP function "Find Path to location Synchronously"? Need some minor help

#

can't get it to return path points array, just says variable isnot in scope.

humble socket Jan 27, 2017, 5:47 PM

#

@stable dew yes I do

thin prawn Jan 27, 2017, 8:49 PM

#

Hello everyone, you may call me standing
i am looking to learn AI BPs. i am quite new so if anyone is interested in trying to make a tutorial series on making AI i would like to tag along for the ride and ask my questions as you go. this way you can better understand how a new person will end up looking at things in your videos. i have been watching some tutorials on pluralsightand they are not only not working for me and others but they have no way for me to interact with the instructor. if anyone thinks this is a project the waht to take up please let me know.
Thx
Standing

vital jetty Jan 28, 2017, 10:19 AM

#

@thin prawn: have you seen Asher's tutorials on youtube?

flint trail Jan 30, 2017, 2:10 PM

#

@thin prawn You are in luck - Epic will be streaming AI with BP training tomorrow

thin prawn Jan 30, 2017, 11:41 PM

#

i know about it

supple pasture Jan 31, 2017, 10:15 AM

#

guys any idea how to set a vector as invalid location in the Behavior Tree ?

supple pasture Jan 31, 2017, 10:43 AM

#

nvm i figure it out

flint trail Jan 31, 2017, 5:41 PM

#

can AI navigate platforms / lifts ? (without C++ or engine modifications)

flint trail Jan 31, 2017, 7:23 PM

#

??

stable dew Jan 31, 2017, 7:31 PM

#

@flint trail if you teach it how and when to jump etc then yes

flint trail Jan 31, 2017, 7:34 PM

#

lol, ok

#

but nav mesh doesn't work with dynamic actors (platforms, lifts, runtime generated levels, etc.) as far as I know..

stable dew Jan 31, 2017, 7:36 PM

#

There's other ways at doing it

flint trail Jan 31, 2017, 7:40 PM

#

so, AI in UE4 doesn't really need nav mesh ?

#

(and yes, I am aware navigation system can be written in BP/C++, but I am not looking to re-invent the wheel)

stable dew Jan 31, 2017, 7:45 PM

#

They're doing a stream on AI atm. You should check it out

flint trail Jan 31, 2017, 7:46 PM

#

at work

stable dew Jan 31, 2017, 7:46 PM

#

But I can't remember how it was done but theres been ways of doing intuitive AI in editor. Let me find out

flint trail Jan 31, 2017, 7:47 PM

#

thanks

placid kernel Jan 31, 2017, 9:37 PM

#

lol.. that AI stream was hiliarious

#

two opposite personalities trying to demonstrate making something advanced = hilarity

flint trail Jan 31, 2017, 9:38 PM

#

Not quite UE4 related, but AI related - Jan Paul van Waveren passed away 😦

#

(Mr. Elusive)

charred glade Jan 31, 2017, 11:18 PM

#

Im wanting to use AI for an open world project. Possibly 100's of AI, is this possible out of the box?

charred glade Jan 31, 2017, 11:34 PM

#

📎 unknown.png

#

hmm

#

It's not filling for some reason any ideas?

charred glade Jan 31, 2017, 11:55 PM

#

Fixed it

#

😄

charred glade Feb 1, 2017, 12:42 AM

#

https://i.gyazo.com/9cf2f6f7c901575cc6142b1852b419bf.gif

#

My army

#

Haha

shrewd depot Feb 1, 2017, 6:07 AM

#

they are running in circles

supple pasture Feb 1, 2017, 7:29 AM

#

Update on my Cover System Now The AI Can take Cover !!!

https://www.youtube.com/watch?v=nCLnuIGVF3Q&t=17s

YouTube

UnlaeD Tech

Unreal Engine 4 Cover System (AI)

▶ Play video

cyan sigil Feb 1, 2017, 9:27 PM

#

Hello, UEAI. I am getting started with making AI characters. I am calling "AI Move To" on one of my characters but they are not moving. The navmesh is built properly.

#

I created a new Character actor class and gave it a skeletal mesh, otherwise it's untouched.

#

This is an NPC and not possessed by a player.

#

Is there something else I need to do?

#

Nevermind figured it out. I had "target actor" set to the pawn itself.

woven leaf Feb 1, 2017, 9:51 PM

#

I strongly recommend debugging the full path of move requests into recast and back. Makes it way easier to assess issues.

barren dome Feb 1, 2017, 9:59 PM

#

Is there a way to make ai(Using behavoir trees) Stop and wait to be told to in a sense trun on and track the player

woven leaf Feb 1, 2017, 10:15 PM

#

yes

jovial valve Feb 2, 2017, 2:54 AM

#

I think I'm going to create my own artificial neural network for my game.

jovial valve Feb 2, 2017, 7:56 AM

#

Okay, I just realized that I don't know anything about back propagation

barren dome Feb 2, 2017, 7:21 PM

#

can anyone point in the direction of a guid of how to do room to room ai

#

so when i enter room enable the ai

vital jetty Feb 2, 2017, 7:46 PM

#

use trigger volumes @barren dome or just check for distanceto player

#

depending on how your rooms are laid out a distance to check might not be enough, that's why I suggested trigger volumes

#

simplest trigger volume is a blueprint with a box collider on it, and then you use actorbeginoverlap event

barren dome Feb 2, 2017, 7:50 PM

#

ok

foggy moth Feb 3, 2017, 6:44 AM

#

Question -0 i have this task that is never being reached (highlighed yellow) - the MoveTo node is set to StopOnOverlap(True) ....

#

http://puu.sh/tMaBG/45a608e94b.png

#

cant quite figure out why its not goign to this task - it should because its going to the location - then stopping.

arctic crag Feb 3, 2017, 6:45 AM

#

are you calling finish execute?

#

or is that the default move to function?

foggy moth Feb 3, 2017, 6:46 AM

#

dfault move to function - but i'm going to delete it and recreate it just for S&G's

#

I have a service that is running on tick for SIGHT detection

#

its spamming the print string i have here:
http://puu.sh/tMaSJ/740980a411.jpg

#

which i know its putting it into the SearchingForPLayer SELECTOR because its moving to the appropriate place

#

but when it reaches its goal - it stands there.....

#

it never goes to the next task

arctic crag Feb 3, 2017, 6:48 AM

#

Are you changing the enum from "SearchingToPlayer"?

foggy moth Feb 3, 2017, 6:49 AM

#

inside the 3rd task yes - but its never reaching to this point....

#

stays inside of the VISION CHECK service that controls it all

arctic crag Feb 3, 2017, 6:49 AM

#

interesting

foggy moth Feb 3, 2017, 6:50 AM

#

http://puu.sh/tMb3s/df270b2e93.jpg

#

that MemoryMarker branch logic -

#

if its NOT NULL - it will go to SearchingForPlayer state

#

so it goes to this state - moves tot eh memory marker , but NEVER goes to the next task

arctic crag Feb 3, 2017, 6:51 AM

#

just so you know, where you're checking to see if the actor exists, there is an "is valid" node you can use. Two different ones, one with execution pins and one that returns a boolean

foggy moth Feb 3, 2017, 6:51 AM

#

probably because its stuck in this cycle

#

either way - the memory marker is still valid

arctic crag Feb 3, 2017, 6:51 AM

#

have you tried setting a breakpoint inside this and walking throught it?

foggy moth Feb 3, 2017, 6:52 AM

#

my entire purpose is to delete it upon arrival

#

i think its the service tick to be honest... i'm watching a tutorial on some AI

#

this guys project works..... mines the exact same - it doesnt lol

#

maybe i should put this in its own selector

arctic crag Feb 3, 2017, 6:53 AM

#

On your tick, is there any variance or does it happen at a set interval? I know that has messed up stuff in my AI

foggy moth Feb 3, 2017, 6:53 AM

#

as it IS moving to the memory location

#

well there is some branch logic to it

#

but due to the PStrings i have in there - its goign direclty to this above branch you seee

#

ugh - its definitely this tick here

foggy moth Feb 3, 2017, 7:19 AM

#

+10 cool points for @arctic crag

#

😉

arctic crag Feb 3, 2017, 7:19 AM

#

xD

wanton raft Feb 3, 2017, 9:58 AM

#

Are there any good AI tutorials for simple RPG game?

foggy moth Feb 3, 2017, 5:44 PM

#

@wanton raft - i came across this yesterday - go to part1 and start there... greate tutorial feed with an understanding of the different classes that makeup the AI in wh ole..... with this dudes explenative tutorials - i was able to come up with some more-than-basic AI for my game 😃 as well have an understanding of the classes & their functionality!@

https://www.youtube.com/watch?v=2duFLmkGc0Y

YouTube

Asher Einhorn

Creating AI in UE4 Part 7 - Simple weapons

▶ Play video

#

Question guys - when i'm doing my AI - and homing in on the players - is there anyway to make a wave of mobs not come at you in a direct line? it just seems to easy - fire in one direction and take out 10+ mobs easily.... can I add any kind of dither into their pathing?

wanton raft Feb 3, 2017, 6:04 PM

#

cool! will check it out

compact rover Feb 3, 2017, 6:45 PM

#

@foggy moth thx for the youtube links, will check it for sure

flint trail Feb 3, 2017, 9:06 PM

#

has anyone watched The Edge of Tomorrow ?

#

(a movie)

#

would it be possible to make AI similar to Mimics ? (without touching C++)

burnt zodiac Feb 3, 2017, 9:11 PM

#

https://gyazo.com/10b614ab1a17e5fc71f5df28ea562690 My AI is moving slowly, unless i alt tab, wtf. Im new to unreal and im just trying to figure it out, been reading a book,b ut i figured i could ask here. Heres my task blueprint for the BT. https://gyazo.com/25e70c887e2fb6e087c9608df363decc https://gyazo.com/224ff6eef65f67513e1d4b058199d7e7

Gyazo

foggy moth Feb 3, 2017, 9:20 PM

#

@burnt zodiac - check to make sure that your ACCEPTABLE RADIUS is set to something lower - like 20.... also instead of the MOVE ACTOR TO node... try the following:

http://puu.sh/tN1A4/df92a7e932.jpg

burnt zodiac Feb 3, 2017, 9:21 PM

#

thankyou

#

😃

foggy moth Feb 3, 2017, 9:21 PM

#

also make sure to do FINISH EXECUTE on the success AND failure - checking the box appropriately

burnt zodiac Feb 3, 2017, 9:24 PM

#

yea

#

I did, but uh

flint trail Feb 3, 2017, 9:27 PM

#

@foggy moth do you know AI quite well ?

foggy moth Feb 3, 2017, 9:28 PM

#

i'll be honest no - but i'm learning as I go

#

its a bit new to me

#

@flint trail - did you have some questions? i really suggest going through that tutorial i linked up earlier... its PHENOMINAL

#

guy did a really good job!

flint trail Feb 3, 2017, 9:31 PM

#

@foggy moth I do, but not about precise implementation

#

@foggy moth have you watched The Edge of Tomorrow with Tom Cruise ?

foggy moth Feb 3, 2017, 9:32 PM

#

yes i have

#

GREAT movie

#

so your question si about the mimics

burnt zodiac Feb 3, 2017, 9:33 PM

#

brb

foggy moth Feb 3, 2017, 9:33 PM

#

yes you could develop AI like this - though you'd REALLY have to know your stuff when it comes to both Animation pipeline as well Blueprint coding AS WELL the AI Framework classes

burnt zodiac Feb 3, 2017, 9:34 PM

#

walldiv, shouldnt this make it so it indefinetnly chases

#

https://gyazo.com/24652b7bc86f4228861aec114f20ca6a

Gyazo

flint trail Feb 3, 2017, 9:34 PM

#

@foggy moth and it would be possible without C++ ?

foggy moth Feb 3, 2017, 9:37 PM

#

@flint trail - to my existing knowledge and what i've been messing around with... i wouldnt see why you'd need to dive into C++ for anything related to AI unless you had some VERY heavy math calculations or TICK events - so you could use the C++ compiler to speed things up....

Short answer Yes it would be possible without C++

#

if things start slowing down - look for heavy math or casting/calculations/tick nodes useage and move those to a C++ class for the class type.... probably BTTask or BTService

#

@burnt zodiac - this is what i use for a CUSTOM MOVE TO task - which coul dbe replaced with the GetPlayerCharacter(0)->GetActorLocation() node driving the location for AIMoveTo()

http://puu.sh/tN2Oc/92042e03ee.jpg

#

and sorry - this was a task

#

you want this in a SERVICE - setting the location of the player as the TARGETLOCATION blackboard key

#

and your MOVE TO (you could probably get away with the Engine Default node) would select the TARGETLOCATION vector key as your input

burnt zodiac Feb 3, 2017, 9:40 PM

#

gotcha

#

👌🏻

#

tyvm

flint trail Feb 3, 2017, 9:40 PM

#

got it @foggy moth, thanks. So, my next logical question would be where can I learn about AI Framework ? (aside from that tutorial you just linked not too long ago)

burnt zodiac Feb 3, 2017, 9:40 PM

#

Books

foggy moth Feb 3, 2017, 9:41 PM

#

honestly

#

watch that video

#

dont ask questions till watching it

#

i cant stress enough - its GREAT information!

#

teaches ALOT of BASE methods to use for AI - and if you're quick on your feet - you can expand on that pretty easily

flint trail Feb 3, 2017, 9:42 PM

#

🤔 👍

charred glade Feb 4, 2017, 2:54 AM

#

My AI - https://www.youtube.com/watch?v=v0NEfe9IanA

YouTube

XERA Game

XERA - Artificial Intelligence Test 1

▶ Play video

#

WIP 😃

wanton raft Feb 4, 2017, 4:44 PM

#

@walldiv#5379 what did u do when it came to using the 'get random point'? as it has been removed in the latests version?

pallid palm Feb 4, 2017, 7:13 PM

#

its still there

#

get random point in navigatable radius or something

#

📎 unknown.png

unborn vapor Feb 4, 2017, 10:21 PM

#

hello everyone
does anyone have any suggestions for getting started with AI?
behavior trees are really intimidating
and I would like to make a boss battle for my game, but unsure whats a good resourse for learning this in detail
thanks in advance

edgy steeple Feb 4, 2017, 10:22 PM

#

Go to #blueprint and ask there

#

You'll definitely get an answer there @unborn vapor

edgy aspen Feb 4, 2017, 11:10 PM

#

why would simple parallel secondary node not execute in this scenario? http://i.imgur.com/4HVb1lC.png

edgy aspen Feb 4, 2017, 11:29 PM

#

i guess things dont execute when there is nothing to exectute

#

when placing wait node in first condition, it executes

foggy moth Feb 5, 2017, 12:53 AM

#

@edgy steeple this is the AI channel - and Behavior Trees are AI related -thus he asked int eh right channel in my opinion.....

@unborn vapor check this link out - it'll be just what you need to not only get started - but also a very in depth & easy to understand system explenation!

https://www.youtube.com/watch?v=2duFLmkGc0Y

YouTube

Asher Einhorn

Creating AI in UE4 Part 7 - Simple weapons

▶ Play video

unborn vapor Feb 5, 2017, 12:54 AM

#

thank @foggy moth !

#

thanks

foggy moth Feb 5, 2017, 12:55 AM

#

you bet - great tutorial series!

edgy steeple Feb 5, 2017, 1:19 AM

#

@foggy moth kappa

supple pasture Feb 5, 2017, 12:00 PM

#

guys what you think https://www.youtube.com/watch?v=nCLnuIGVF3Q

YouTube

UnlaeD Tech

Unreal Engine 4 Cover System (AI)

▶ Play video

barren dome Feb 5, 2017, 12:03 PM

#

Looks auesome

supple pasture Feb 5, 2017, 12:07 PM

#

@barren dome thanks 😃

barren dome Feb 5, 2017, 12:07 PM

#

What are you going to do whith it ? marketplace? Free?

supple pasture Feb 5, 2017, 12:12 PM

#

https://forums.unrealengine.com/showthread.php?134039-Full-Cover-System-High-and-low-With-Aiming-And-Jump-Over-Cover-!!!

foggy moth Feb 5, 2017, 5:05 PM

#

looks great @supple pasture

vernal thunder Feb 6, 2017, 8:12 AM

#

Hey what's up? I had a small design consideration issue: If I use my Behavior Tree as a kind of state machine: Each branch represents actions to be executed when my controller is in a particular state, what's the best place to implement the state transitions?

#

I currently perform a check within a task as the last node under a particular state. If certain conditions match, a new state is entered.

#

Is there a better way to do it?

arctic crag Feb 6, 2017, 2:05 PM

#

that sounds pretty logical

latent bolt Feb 6, 2017, 7:03 PM

#

anyone knows any article about l4d horde mechanic? Like how they handle collision in such tense space? Or something like that?

#

@vernal thunder This is ok. Behavior Tree is a state machine, internally.

foggy moth Feb 6, 2017, 7:53 PM

#

@latent bolt - i watched a video on this... i dont see any overlapping zombies so they must have collision on towards eachother.... but heres a few things i could probably suggest:

1: Turn the capsule radius on the enemy base class to be less than the actual body mesh by a bit... play with this till you feel comfortable with a realistic or semi-realistic distancing when the enemies are so close.

2: Ensure that the MESH itself has 0 collision

3: Make sure that however you're doing your enemy attack - it CHECKS TO SEE if it is against a player... so that enemy attacks will fail against enemy.

#

this way - the capsule is what seperates all the enemies together.... and any enemy swings/attacks dont hit other enemies - not even for HP damage, but also for physics - you wont fling your enemies halfway across the map.

vernal thunder Feb 7, 2017, 2:43 AM

#

@latent bolt aah. Thank you!

worthy trench Feb 7, 2017, 2:51 AM

#

I made some ai for a project I'm working on. I'm having a issue where the ai that chases the player shake from side to side a little when there chasing the player. I did use some set focus nodes so when they get in range of the player they don't attack in a strange direction. I also used clear focus after after the ai attacks.

foggy moth Feb 7, 2017, 4:28 AM

#

@worthy trench - have a look at this tutorial - came across it the other day and it does some PHENOMINAL exlenation of the AI Framework - as well very extensive above & beyond AI attacks... how to's and a various assortment of other things.

GREAT SERIES! (this is part 10 - go to the guys page and go to part 1)
https://www.youtube.com/watch?v=lthnBCyTHiA

YouTube

Asher Einhorn

Creating AI in UE4 Part 10 - Coding other senses

▶ Play video

worthy trench Feb 7, 2017, 4:29 AM

#

Thanks I'll check it out for sure

foggy moth Feb 7, 2017, 4:31 AM

#

i too had some quirky things happening in my AI until i came across this tutorial..... the biggest thing is how to use the SELECTOR in combination with PARALLEL - and a DECORATOR to rule them all (LOTR PUN INTENDED)

latent bolt Feb 7, 2017, 7:54 PM

#

@foggy moth sad that there is so little information about L4D Horde AI. I also suppose there is some interesting stuff with zombies, that cant get to player (when player is surrounded by crowd)

foggy moth Feb 7, 2017, 7:57 PM

#

if you want them to collide with eachother (not stack on eachother) then yes you are right. @latent bolt

grave nimbus Feb 8, 2017, 8:12 PM

#

I'm making a toy tank game were the camera is locked looking down at the map. I can't seem to get to a pawn class aitank to move or turn on it own. Is possible? Has anyone done this or know of any tutorial I can watch?

#

on its own**----- Is It possible?****

green vapor Feb 8, 2017, 8:43 PM

#

Have you checked @low loom 's series? https://forums.unrealengine.com/showthread.php?132489-From-Unity-to-Unreal-Engine-free-project-and-series-of-lessons

foggy moth Feb 8, 2017, 10:26 PM

#

@grave nimbus GREAT SERIES! (this is part 10 - go to the guys page and go to part 1)
https://www.youtube.com/watch?v=lthnBCyTHiA

YouTube

Asher Einhorn

Creating AI in UE4 Part 10 - Coding other senses

▶ Play video

grave nimbus Feb 9, 2017, 2:26 AM

#

I have already tried to do his Tutorial but It doesn't work for pawns with custom movements

glacial fog Feb 9, 2017, 7:02 PM

#

ok so AI is combat right?

slim karma Feb 9, 2017, 8:02 PM

#

When using AI move to location with multiple AI it seems that they always get their logic borked out because another AI is blocking the path. Of course you could always up the acceptable radius for the action but this solution does not work well if you are trying to achieve close quarters melee like a zombie horde. Any good tutorials or vids by anyone who has solved this issue of multiple AI trying to reach a point and moving to the closest available spot to the player. I'm guess some EQS would be involved

charred glade Feb 9, 2017, 8:55 PM

#

That could be fixed with using a dynamic navigation mesh I believe

#

And have the pawn as an obstacle

slim karma Feb 9, 2017, 9:02 PM

#

Hi Josh thanks for the reply. So each Ai would be an obstacle of eachother?

charred glade Feb 9, 2017, 9:11 PM

#

Yes

#

It will generate the nav mesh in real time

#

Of the surrounding area

#

Im not sure how intense it is

#

But that would be a way to solve your issue

#

https://answers.unrealengine.com/questions/223395/dynamic-navigation-mesh.html

#

That should do it 😃

#

Instructions are in that answer

#

It should do pathing around the player

#

Im not sure how well the pathing will be with dynamic moving obstacles but give it a go

slim karma Feb 9, 2017, 9:14 PM

#

Thanks alot Josh ill start the R and D

charred glade Feb 9, 2017, 9:15 PM

#

😃

#

No problem

foggy moth Feb 9, 2017, 10:31 PM

#

@slim karma - a HORDE of zombies - well if you want it realistic - the zombies will never be on top of eachother, but tightly stacked..... so my suggesting is to play with the capsule radius so its slightly smaller than the enemy mesh - and turn the mesh collision off......

But if you dont want it realistic, and want the enemy horde coming at you and being able to all hit you.... either turn down the capsule size or completely turn it off for collision towards the enemy class (Custom Object Channel?)

Thats my 2 cents

cyan sigil Feb 10, 2017, 1:31 AM

#

I am working with AI trees and I had a question.

#

Is it possible to have a selector node with more than one branch?

#

Decorators only evaluate True or False. Do I just need to chain several selectors to do something like a switch statement?

elfin socket Feb 10, 2017, 2:08 AM

#

@foggy moth here's the link to the guy's full playlist for that series: https://www.youtube.com/playlist?list=PLbRBWFaQHaW__LcCtV-KnqqgIFOyyFhr5

YouTube

Asher Einhorn

UE4 Tutorial Series - AI

▶ Play video

#

@lyric flint The above message is a good one to pin

foggy moth Feb 10, 2017, 3:13 AM

#

Question all - for EQS Trace Test - in order to use the CONTEXT - do i have to check "TRACE FROM CONTEXT" ?

http://puu.sh/tWgJ5/3f4e36c46d.png

#

reason i ask - is the choice of words... this is supposed to trace TO the context... not FROM it

lyric flint Feb 10, 2017, 3:21 AM

#

elfin socket Feb 10, 2017, 4:04 AM

#

Does anyone know where (or have recommended posts/blogs/videos) I can learn more information about these different types of AI architecture? (found this while watching the official unreal engine youtube channel for japan)

📎 game_ai_architectures.png

foggy moth Feb 10, 2017, 4:21 AM

#

have you tried google searching them @elfin socket

#

I know UE4 native AI (at a very base level) is the Behavior Tree

#

but theres sooooo many more components

#

Finite State Machine - https://wiki.unrealengine.com/FSM

FSM

#

https://play.google.com/store/books/details?id=OGjiCwAAQBAJ&rdid=book-OGjiCwAAQBAJ&rdot=1&source=gbs_vpt_read&pcampaignid=books_booksearch_viewport

Unreal Engine 4 AI Programming Essentials - Books on Google Play

#

this maybe my next purchase 😃

elfin socket Feb 10, 2017, 4:46 AM

#

Well of course I tried googling them, but the results are almost always in some unrelated context or whatever. That's why I mentioned recommended posts/blogs/videos or whatever.

last fjord Feb 10, 2017, 4:57 AM

#

ADHOC = whatever works

#

for neural networks, you will not find much if any UE4 specific things but any game neural network example will apply really

cyan sigil Feb 10, 2017, 5:46 AM

#

That book is for Unreal 4.7, so it's pretty out of date.

#

And the formatting is awful.

#

So is there a reason why I can't alter the MoveTo node to point at a different blackboard key?

#

Only "SelfActor" shows up in the dropdown, even though I have other Object values.

#

Okay fixed it, you have to define the base class of the object as Actor

#

Even though it's a hidden value for some reason

ocean crystal Feb 10, 2017, 6:04 AM

#

UI is kinda weird, but objects don't have a location

#

So you can't move to them 😉

cyan sigil Feb 10, 2017, 6:05 AM

#

Right, which is why I had to open the "advanced" section of the blackboard value and set the Base Class.

hasty harness Feb 10, 2017, 2:14 PM

#

hey guys,

#

any ideas why my AI can't move when I enable physic simulation?
and how to solve it?

foggy moth Feb 10, 2017, 9:37 PM

#

@hasty harness what kind of input are you giving it? AI->MoveTo location?