Unity AI Patrol, Chase, Attack Tutorial in Less than 8 Minutes(Advanced AI Controller) 

I was not able to find this thing anywhere from last like 4 hours, but just gave a simple yet the best tut out here

I have been looking for a long time on a good tutorial and im happy to say that I finally found one.Really easy to follow and upgrade with my own code. THANK YOU!

Thanks you so much, after a few hours of making mistakes I finally made it work!

Things u forgot to mention. Adding waypoints ( just use empty object and place where u want, if u r getting out of bound error). Baking, before backing go to right tab, object, select Navigation static, now bake will work.

I have 2 issues, the enemy moves through my obstacles when it patrols but once it starts following me it starts having collision with them, also once it follows me and i break line of sight it never goes back to patroling, any suggestions?

Great tutorial man! Thank you!

I'm getting very confused on 5:35 I made the layers but have no idea what to do. My enemy capsule is just rolling around like a normal rigid body. For my player I used unitys first person template and renamed the player capsule to Player. I know I've done something wrong or missed something important.

Thank you so much for this awsome tutorial!!

um, when i get out of sight for the ai and it's supposed to go patroll from the first waypoint it just walks in place(i added an animation) and doesn't go to the waypoint until it sees me agaun. please help

Great tutorial!! Thank you so much!!

Hey man, everything worked but the enemy is not going back to the patrol waypoints after seeing the player, am i missing something?

do you have problems with EnemyAI triggering NavMesh.SetDestination lagging or freezing the game for a few seconds? I do

I keep on getting errors saying “expected” or “invalid term ‘’” and “Type or namespace definition, or end of life expected” how do I fix this?

Hi. Thanks for the tutorial. That is very helpfull. The "CaughtPlayer()" methode is never used. Is that right ?

I'm confused about when (m_playerNear) is true. its set to false on start function so when is it actually set to true.

What if i wanted to add a value called isHidden and when the AI is chasing the player and the isHidden value inside the player turns true the AI suddenly goes back to patrolling ?

hi i made everything its almost work fine but agent doeasnt go to the patrol points and when ı got out his range it says "object reference not set to an instance of an object" how to fix it did everything right

Thank you so much bro, it helped me a lot. I can build on this code to make my own monster enemy in my horror game. Thanks :D

Can i use this method to unity standard asset third person character?

There are loads of tutorials like this - AI cylinders moving around the place. What nobody seems to do is use an animated avatar and show how to use blend trees to control movement and speed for patrolling, chasing and attacking. Anyone know of this I would be grateful.

I got you for that 50th subscriber! :3 Thanks for the super easy to follow tutorial and i'll be using this into my game!

I create this tutorial, but agent go in 1 point in 4, and not deteched player, why this maybe? My player use character controller, this can be because my player haven't rigidbody?

can anyone explain where i put the AIControler script at? im using it to Enemy but seems like i make a mistake at it, so maybe can anyone tell me how to use it, please?

You earned it with this one! +1 sub.

Hey, I dropped a message in your discord. Unfortunately I've been having some issues with getting this working. It looks like the GetComponent for the NavMesh is being reset each time. Not sure if this is due to an update in how Unity operates now

I have problem, every time I get out of the enemys "chase" stage, the game stops and says "object refrence was not set to an instance of an object. guess the enemy gets mad when he cant see me

How do you add animation the script or in turn just drop a script for US to access it you can as well tell us here

How to fix IndexOutOfRangeException: Index was outside the bounds of the array Error..Please help me :(

do you have the full version of tutorial i didnt follow some steps like im lost

keep ur good work brother luv

is there any way that i can loop the patrol?, mine is not looping

do you know why its out of bound? i dont know how to adding waypoit

Is there any way to make clone of enemy ? With singal AI script, also hit sound damage sound and AI sounds

how do i make the terrain walkable in 2d orthographic view

so how to do a function where when u are caught something will be triggered?

instead of the enemy going to me, it goes to the waypoints, and completely goes around me. does anyone have a solution?

My AI just go to the first checkpoint and don't go to the next one, it just go back and forth in the same checkpoint. I copy pasted the script. Anyone knows how to fix it?

i know this is old video but does anyone know how to fix error m_Ispatrol does not exist lines 187,21

Can i get some help getting this ai to work it wont go to the way points or chase the player it is literally driving me mad

How can i fix that the enemy goes back to Patrolling after he loses me

Hopefully you see this! I love the script but my one issue is that my obstacles all disappear in game view and i can not understand why, if you could help that would be awesome!

To make more pro like you should split the parts like component based design works. Patroling, Playerfinder, MovementScript. The player finder can use unityevents like if you find target disable patrol Script if you lose target enable again. Patrol script would send next position to movement script and playerfinder as well.

I'm looking for videos that have the enemy ai animation snapping back when it loops i can't fix this no one is talking about it 😐

I had some trouble applying the BAKE because he never said to set the cube to static in the navigation object menu.

Does anyone have an idea about the waypoints ? Do I need to manually add them ?

I almost always have an enemy stuck in a corner and run in place if the player turns around the corner during the chase. He does this until he walks back or walks out of the corner. What to do?

so im having a problem, I copy and pasted the script but it says "Index was outside the bounds of the array" any idea what this means? (its on line 50 and line 121)

it gives me this error Index Out Of Range and my enemy model is getting gone

how do i fix out of bounds of the array error

on pastebin code is missing!

If it's not working for you. He got a some of it incorrect. Some void updates are private. Check the copy-pasted version. There should be a: m_Player is near: on line 40 :/

This is a great tutorial! Although I am implementing this into my 2D game, and am having some trouble modifying the script so that it works within Unity's 2D NavMesh. Does anyone have any suggestions at how to modify this script for a 2D game in Unity? I have already tried substituting all of the Vector3's to Vector2's in the script and that doesn't seem to work. Thank you!

Does this work for 2D?

how is created the array? I've never delt with it before so now i'm a little lost, i tried Unity documents but they don't teach about this

It doesn't work how many times I try. It gives index error.

Hey this is my first time making a game so I am a beginner at making games right now. I have downloaded the script and want to ask a question how/where should I edit the code to where when the enemy AI touches the player a event happens like game ends, game over, or something tells me that such event happen. Please and Thank you.

What are the models you are using ?

If anyone is having problems with the enemy colliding with the player & it's causing it to drift off by itself. Then you need to set the enemy rigidbody to kinematic 👍 Alternatively, if you don't want your enemy kinematic all the time, add this to your chasing state: (First add a reference to your enemy rigidbody) If(vector3.distance(transform.position, gameobject.findgameobjectwithtag("player").transform.position)

how to set waypoints loop ?

how do i implement for enemies to stop at certain distance from player and start shooting projectiles. Thanks for the really good tutorial though

I got a error because of the waypoints. It says IndexOutOfRangeExpection: Index was outside the bounds of the array. Can anyone help

Doesnt work, I did everything the video told me and the enemy doesnt move. You probably shouldn't speed through teaching AI since its a complex thing.

Pleease help,how do you add navmesh to unity i down fucking understand.

So I got it 'mostly' working. After I added some waypoint gameobjects to the waypoint array (which I think was missed in the video?), the guard would walk to the first one, but not the second one. Is anyone else having this issue as well? I did note a script below making sure that the nextpoint loops back to the first one, but this doesn't seem to be the problem in regards to getting to the second waypoint...

Isn't there an error at 3:58 that you never fix?

how to I change the radius of the AI. Like if I want the AI to stop within like 1.5 radius of the player so it's not pushing the player trying to get to the center of the transform? edit: I fixed it with adding this... if (Vector3.Distance (enemy.transform.position, player.transform.position) < radiusofNearPlayer) { CaughtPlayer(); } else if(Vector3.Distance (enemy.transform.position, player.transform.position) >= radiusofNearPlayer) { playerLeftRadius(); } ,but the AI takes about 2 - 3 seconds to slow down even inside the radius of the player. The radiusofNearPlayer us just a public float so I can change values in the inspector. Any help would be great!

What does IndexOutOfRangeException: Index was outside the bounds of the array. aiController.Patrolling() mean?

Hey for some reason I am getting an error that the index is outside the bounds of the array for waypoints

yay im the 200th subscriber

Not sure what's happening but it seems the enemy works as intended until after he's spotted me and I get a certain distance away from him. Game just crashes at that point

I tried but it was too hard and it wouldn’t work

Hey Dan, I have been able to implement your code into my game but I am noticing there is no actual attack code within it. Would you be able to create a short video how to add attack code to the script so my enemy ai is able to attack in melee range? Thanks again for the quick and clear video, you definitely earned a sub!

my ai keeps turning to face the floor instead of being upright

my character stops at the first point, I did everything as shown in the video. Has anyone had a similar problem?

Does anyone else have the problem of the AI shaking once it touches an object with the layers "Obstacle" or "Player"? For me it just shakes and stands there without returning to the waypoint. Wondering if anyone has a fix for this, thanks!

Can you please make a tutorial on how to make it animated please

Good tutorial. But what if you play with friends and everybody are in AI view?

can you make a guide on how to add animation with this AI Script

I copy and pasted my code in, and everything was working fine, but there was always an error saying that the index out of bounds of the array. Also my 3d model that I had attached the AI too wasn't following or moving or anything. I followed the tutorial exactly, with doing the baking and everything, and the model will move, but only if I push it with my character. It won't follow me or patrol.

great tutorial, but what do i have to put on the waypoints array?

Nice video! My only question is that if I could somehow add the CaughtPlayer() function to the script like, if the enemy is close to the player then call the CaughPlayer function, thanks!

What about attacking

The enemy justo don't follow and pattrol, and i copy exactly the code of the video

I would like to see character mouse look script and walking.

Here s one sub

The people who are using this Don't forget to give a tag "Player" to your player controller and Great video!

can you show us a script of the animations please?

how animations?

Why isnt there NavMeshAgent on my screen?

Mate, link to code not working.

My AI sees me through my back!

Hi, instead of chasing me, the enemy runs away from me?! please help

Are you Serbian, saw that ž slipup while writing :D

where the hell is nav mesh agent

where tf did you find the AI in window?

"Couple of bools...."

please help me, i used your code, its running but i got a error it says "index out of range exception unity", what should i do?

hey how to add the waypoints?

is it just me or the enemy doesnt chase me

IndexOutOfRangeException: Index was outside the bounds of the array.