Dude, you're literally making my final degree work. If i get the title, i'll get a very good contract in a big enterprise. My life will be very stable. I can't thank you enough for this Update: I got my title! Update 2: I got fired cause Coronavirus too hard for enterprise apparently Update 3: Just got a new job :D Update 4 because you guys keep asking haha: They had me doing boring simple stuff so I moved to another enterprise where I work on a way more interesting project ^^ Update 5: Still in the same enterprise but different team and technology. Still not in videogame development but I got a stable life now so no big deal Note about the original comment: It wasn't a very good contract. It was decent at best, but young and innocent me didn't know any better lol
If you get an error about insecure connections not being allowed it is really easy to fix. Here's how you do it: in the top left click file, then build settings, then player settings, then other settings, scroll down to a setting called allow downloads over HTTP and make sure it is always allowed. it took me hours to figure this out lol
Amazing that you released a video a week before I knew I needed it! Thanks my dude. I can always count on your simple, quality explanations for when I'm wandering aimlessly through the sketchy void that consists of 5 year old tutorials that provide complex and faulty solutions.
This is awesome! I scrapped a 2D Top Down RPG series because the pathfinding videos were becoming longer than the rest of the series! I didn't realize the free version of that asset was so powerful!
Do you know why the enemies are only chasing the starting position of my player instead of following him around? (the enemies are not placed, they're spawned and both enemies and the player are prefabs
I finally managed it after 2 days of knocking my head against a wall. Always brings results. in the EnemyAI script where you rb.Addforce(force), (if you want to keep flyers), wrap this in an if statement with a bool (eg. canFly) and if the bool is false, only add force to the x axis. I was still having problems with ground units going over slopes. AddForce was just not working for it so I change mine to using rigidbody velocity which fixed it up well. Vector2 force = direction * speed * Time.deltaTime; // force that will move the enemy in the desired direction Vector2 velocity = rb.velocity; if (canFly) { // If a flyer, apply velocity in all directions // rb.AddForce(force); // the old method velocity = force; rb.velocity = velocity; } else { // If not a flyer, only apply velocity to the x axis velocity.x = force.x; rb.velocity = velocity; }
amazing content, I can't thank you enough for the effort put into this or the sharing of information. More people should make content like this. Technical expertise and well spoken. There isn't enough i can say about this. wonderful job, keep up the great work.
This is awesome and very helpful, but what about walking enemies that need to jump across platforms or onto higher surfaces to continue chasing the enemy?
Just program it yourself lol, use a little bit of intuition. For example, I've never done it, but I'd check for ledges one tile or so in front of me and if so, Jump(). If you want to make it sophisticated, check also for ledges that can actually be reached by the jump, so the enemy does not jump fruitlessly into a void.
Honestly, from playing and watching tons of 2D platformer games, there aren't actually that many that let enemies jump on platforms to follow players. Obviously, it makes them more viable as enemies, but it's not something I think many games do. Most of the time the enemies just fall under the platforms and the player gets to progress without opposition. In away, from a design standpoint, this works fine since it gives the player a sense of taking care of the enemies without having to brute force them. I personally think jumping over grounded obstacles is enough. A platform in the water, just have the enemies stop at the edge or fall into the water and die. Or I guess you could do what Terraria does and give enemies a set jump and if they make it, they make it, otherwise they fall.
@@VidimusWolf Could get complex, but I suppose you could use vertical raycasts to check the corners of the enemy sprite to see if it's on a ledge, and if so, use horizontal raycasts to check a specific distance out that correlates to the limit it can jump. And if it is close enough, immediately jump before it fully goes off the ledge. Anyone using Rigidbodies might not have used raycasting too much, but anyone using raycasting as the basis for their controllers will probably do it that way or similarly (I'm new to raycasting, so I could also be speaking out of my ass)
What about a tutorial that does navigation for 2D ground-based enemies? I'd love to learn the process behind making entities jump and drop down through platforms to pursue the player.
Add colliders to the enemy and add a ridgid body 2d so it is affected by gravity. As for jumping, your probably are gonna have to do some code on how the enemy will jump when it hits a wall.
What if you want the enemy to use gravity and jump after the player? I'm trying to allow it to use gravity based on the enemy's rigidbody but, it's falling slowly for some reason. When I disable the pathfinding script, it falls normally. When I use the pathfinding gravity, it falls through platforms even though I set the layermask in the pathfinding script to include the platform layer.
you should try to make the enemy follow after the path only on the x axis and only jump if the next waypoint is higher than a certain threshold and the enemy is grounded
When i finished my bird enemy at my second enemy which i want to be on ground so i just added some gravity scale on the enemys rigid body and that actually worked. Except i want the enemy to jump whenever it needs to.
Something worth noting, on path complete you want ot set your next waypoint to 1 not 0. This is especially important if you're updating animations based on speed and direction, and if you're not using forces to control your movement. i.e. private void OnPathComplete(Path p) { if (!p.error) { _path = p; _currentWaypoint = 1; } }
Is there a way to make the enemy only follow the player when their close enough to them? My enemy''s stay in their grid, but follow the player no matter where he is on the map.
I've never used this pathfinding package, but generally speaking I would use raycasting to know if the player is in range with the enemy. Check the package documentation, maybe there is something already implemented there that fit your needs: arongranberg.com/astar/docs/
@@danielesusino7692 THANK YOU SO MUCH for putting the code in a paste. Way easier to follow and get what you need when it's colored and indented adequately.
AddForce already scales by fixed delta time ^^. In fact, if you do AddForce(direction.normalized * mass * drag * speed), you'll get a max velocity that is equal to the speed measured in units per second. Great video!!
@@saydoer That's because FixedDeltaTime still returns 0.02 (by default) so if you you multiply by it, it'll change your end result. It's basically multiplying by FixedDeltaTime once automatically in addForce, and again when you do * Time.FixedDeltaTime. My guess is that you might be using large numbers like 500 for addForce which is a lot. Also if by chance you are doing addForce in Update instead of FixedUpdate then you might be adding that force more often than needed. Try the formula I mentioned above in Fixed Update with those values pulled from the rigidbody and you should get really consistent, predictable results. The catch is you'd have to either not use zero for mass and drag, or you'd have to add some small number in the code to keep it from applying a total force of zero
@@elpainto1 I'm following the video in all respects, so yes these are going into FixedUpdate. I am adding a force of 500 for the speed, so that is probably what's causing it. Even after reading your description, I don't understand the difference (aside from the math) between your way of forming this vs. using force = direction * speed * Time.deltaTime. What, exactly, is gained by doing it your way?
@@saydoer what you get when you bring in those other values is that the resulting speed is ( or is close to) a velocity in units per second that matches the speed variable you pass in, even if you change the mass and drag of the rigid body in the inspector.
Having some issues with this. I am using this code, but having my object move a set distance each update in the direction of the "direction" vector created using this code (as opposed to applying a force like the video does). But when the path invokes again and recalculates a new path to the target, there is a weird stutter that occurs. I think it is that the first new node that is generated when the path recalculates is actually slightly behind the object, causing it to turn back for a second, then continue moving towards the target. It creates a very disjointed-looking result. I haven't been able to solve this. Anyone have any ideas? Edit - Fixed it by making it so that when the currentWaypoint = 0, the vector current_waypoint is calculated using currentWaypoint +1 instead of currentWaypoint. Thereby skipping over to the next way point after a new path is calculated.
10:43 when I execute the flip script the a* pathfinding script sets my sprite scale to 1 even though I want it at 7, any way I could change this or prevent it from happening?
I know you said you solved the problem, but you could also go to the 'Import Settings' for your sprite and adjust your 'Pixels Per Unit' value until a scale of 1 looks like your current scale of 7. Then you won't have to write the extra code.
Thank you so much for this! I hope you'll keep going with this platformer pathfinding stuff and expand it further. There seems to be tutorials and assets for everything other than platformer pathfinding.
At 18:30 you also need to change Time.deltaTime to Time.fixedDeltaTime You could also set rb.velocity instead of Force and when Enemy reach destination set rb.velocity = Vector2.zero So, you won't have any overshooting.
How should we modify it for special enemies though? Like - what if an enemy needed to move in line of sight to fire a projectile? What if they had to manuever through an environment by jumping around or climbing ladders?
I already knew how to do this but I watched the video anyways cause I always learn something new from your videos, no matter what. I wasn't wrong :D Thanks, Brackeys!!
I should learn by now that when in doubt, search for Brackeys. 2D pathfinding for a Metroidvania type game has been rattling my brain for a bit. 2D sidescroller pathfinding in general rattles my brain. Thanks for supporting the Unity community!
Me in my dungeon having a nice time coding and seeing Brackeys' black bg not hurting my eyes. 0:49: ono, your skills hare wants to burn your eyes out lol
I followed this tutorial and created an enemy in a top down game that follows the player.... I then created an enemy spawner script in the main camera and turned the enemy object into a prefab... But when I put the prefab into the gameobject in the inspector the spawn is working but the enemy does not move... I put the prefab on the screen and the same problem occurred.... In short I am unable to move my enemy when I use it as a prefab.... What's with this issue? anyone has a solution to this?
You need the script to automatically find the player to chase. You can add a line in the AIDestinationSetter script: void OnEnable () { target = GameObject.Find("Player").transform;
Well, with the A*, he will just go under the target and try to fly 😅 But it would be very interesting to look at how to make an AI able to jump over holes and (why not) go back to gain momentum and jump further ! But I don't think we're going to see this on Brackeys because it's more about algorithm complexity than use of unity and its assets, unfortunately.
FOR THOSE WHO ARE GETTING GENERAL ERROS, just download different packages from the webpage he showed, doesnt need to be exactly the one he downloaded, one of those might work. The one he downloaded didnt work for me, then I downloaded 5 different ones (from the same link in the discription, just different versions), some of them worked partially, until I found one that worked completely.
Please make A SIMPLE Racing game that we can make in like 15 minutes. Love your videos. You are my favourite. Keep up the good work mate. Thumbs up from me.
Hey @Brackeys I have encountered a problem where the Scan button doesn't create unwalkable spaces around my obstacles (despite them having a similar settings to yours, did you ever happen to have similar problems? Do you have any suggestions? (tried potentially checking Z on my obstacles related to A* and setting them at the same level, as different ones didn't work, tried thicc height testing, my objects do have box colliders) And I sort of run out of ideas here as to what could be wrong.
Hey, a really cool video you got there. Do you really need to use external A* when you can just lie your game down onto XZ plane and bake the NavMesh on a plane under the tilemap?
Hey there Brackeys, Great video, I was definitely looking for something like this! I have a question however, when you write the code to flip the Sprite based on the direction it wants to travel, is there any reason why you use the local scale to flip the Sprite over the the SpriteRenderer.flipX property? Thanks.
No, it will not be illegal, actually. Lootboxes just have to require the odds of getting items in the open, and they didn't say it was for lootbox purposes.
Im folowing your tutorial series in wicht you teach how to make a platformer in 2d... I had problems with the pathfinding beacause it was old.... But here you are with a new video of this.... I love you!
I wish you would have explained "nextWaypointDistance" a bit, since it can yield very different results based on the game you're making. I've found that increasing that value doesn't move my own character to the expected location. Decreasing it however makes you end up closer to the clicked location.
This came at such a right time. Could you please do some more on AI and some on testing??? That would be really helpful and thanks man, your videos are such an immense help...
Super helpful, thanks ! ;) However I think there is a little mistake here. Your condition to increment currentWaypoint makes the AI not going to the end of the path. the "newtWaypointDistance" acts like the endReachedDistance. Be careful for those who'd like to use it, that could surprise you :) (It was a problem for me as I needed precise movements)
Not with the free version, i don't think so. the A* pathfinding project has a paid version on the asset store for 100$ that allows for that kind of thing as far as i'm aware
Run : AstarPath.active.Scan(); once your level generation is complete or when it gets updated, that should rescan all your graphs. I don't know if this is the best way but it's doing the job for now ^^
you just need the generated prefabs to be on a "obstacle" layer. idk about the size of the pathfinding area but depending of what you want to do you can make a level that moves instead of the player (like those running mobile games)
If you are procedurally generating a big (or infinite) world, you could attach the Procedural Grid Mover (comes with A*) in the same object that has the Pathfinder, attaching the Player (or the Camera) as the target on the script. This is WAY more cheap than scanning every time.
Glad I watched the second half of this with the custom script. I spent hours trying to find a solution to why using all the default methods caused enemies to just overlap eachother and ignore colliders in general. Now my enemies crash in to each other the way I want it to.
I'd say it's mostly the same, only add the force in the X axis and have your enemy continuously jump up when either the path goes upward, or if the player Y is higher than its own. If you want it to only jump when there's a wall in front, a simple raycast forward should be sufficient to check :)
Thanks Brackeys! I love the A* algorhtym and watch any video I see on it. I think I'll try this system since I don't have anything designated for 2D A* yet.
Wait.... In the end you didn't use your "reachedEndOfPath" boolean didn't you? Because if it ends up true you just return from your FixedUpdate, and if it's false it's not used anywhere. Well, it could be useful if you want to add some other functionalities within this script anyway.
For some reason, when I implemented the A*, it stopped my character from jumping. I am using the same script that he used in the 2d movement tutorial. Any help?
THANK YOU SO MUCH! Tomorrow is my final project and my enemy did not move no matter what I did, thank you, not only now it moves, it also was easier to do!
great tutorial but when I tried to flip the bird in the script it told me that "the type or namespace 'AIPath' could not be found (are you missing a using directive or an assembly reference)" but the thing is I did use the using Pathfinding tag
I'm pretty sure that this is just an editor problem. I have the same thing and Unity doesn't complain but only Visual Code. Edit: and the code work as it's supposed too, it's just that Visual Studio is complaining for no reason
AIPath doesn't work n my game. I used the same version as brackeys dis but the using directive doesn't have a AIPath Object for me. HAve somebody an idea how to slove this?
Dude, you're literally making my final degree work. If i get the title, i'll get a very good contract in a big enterprise. My life will be very stable. I can't thank you enough for this
Update: I got my title!
Update 2: I got fired cause Coronavirus too hard for enterprise apparently
Update 3: Just got a new job :D
Update 4 because you guys keep asking haha: They had me doing boring simple stuff so I moved to another enterprise where I work on a way more interesting project ^^
Update 5: Still in the same enterprise but different team and technology. Still not in videogame development but I got a stable life now so no big deal
Note about the original comment: It wasn't a very good contract. It was decent at best, but young and innocent me didn't know any better lol
Good luck!
Awesome!
Congrats dude. GOOOODDD JOB !!!!!!
heck yeah! good job man!
LES GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
YES, i've been hoping you'd cover this at some point
If you get an error about insecure connections not being allowed it is really easy to fix. Here's how you do it: in the top left click file, then build settings, then player settings, then other settings, scroll down to a setting called allow downloads over HTTP and make sure it is always allowed. it took me hours to figure this out lol
Godsend, thanks for saving me time!! :D
Life saver thanks
The hero we needed
thanks so much i was about to give up ^^
You saved me from wasting so many hours, thanks
10:10 Brackeys you have "Flipped the Bird"
ok
Uwu
holy crap it's you
Amazing that you released a video a week before I knew I needed it! Thanks my dude. I can always count on your simple, quality explanations for when I'm wandering aimlessly through the sketchy void that consists of 5 year old tutorials that provide complex and faulty solutions.
well...
I like how you show us a way we can obtain this without a lot of work, but also a way we can make this by ourselves
This is awesome! I scrapped a 2D Top Down RPG series because the pathfinding videos were becoming longer than the rest of the series! I didn't realize the free version of that asset was so powerful!
Start of the tutorial for hard coders 11:20
thank you
@@brangtoggez6363 well that actually wont work, you still need to set up A* and the seeker script which is before 11:20
In today's Brackeys tutorial: "How to flip the bird"
Thanks, A* is awesome, I am using it to make my game in the Brackeys 2021.1 game jam!
same
Do you know why the enemies are only chasing the starting position of my player instead of following him around? (the enemies are not placed, they're spawned and both enemies and the player are prefabs
@@sofikirkou idk
@@sofikirkou I'm having the same problem.
Any chance you could extend this tutorial for grounded characters that use the same physics as the player and need to jump to reach platforms?
Yes please.
have you found a solution to having a grounded enemy yet?
Did you ever figure this out ?
I finally managed it after 2 days of knocking my head against a wall. Always brings results.
in the EnemyAI script where you rb.Addforce(force), (if you want to keep flyers), wrap this in an if statement with a bool (eg. canFly) and if the bool is false, only add force to the x axis.
I was still having problems with ground units going over slopes. AddForce was just not working for it so I change mine to using rigidbody velocity which fixed it up well.
Vector2 force = direction * speed * Time.deltaTime; // force that will move the enemy in the desired direction
Vector2 velocity = rb.velocity;
if (canFly)
{
// If a flyer, apply velocity in all directions
// rb.AddForce(force); // the old method
velocity = force;
rb.velocity = velocity;
}
else
{
// If not a flyer, only apply velocity to the x axis
velocity.x = force.x;
rb.velocity = velocity;
}
Ryan Van Der Linden how would i make it jump over platforms to reach the player?
As a teacher from QC I realy apreciate your philosophy and the way your videos are builds! Great job.
Still come back to this vid every now and again. Miss your vids :(
HES BACK
@@Flare38888 Ahah yer, I'm very happy about it! I don't do Godot but if I ever feel like it then I know where to go. :D
@@karficzfrizack2711 I was thinking of trying it sometime because it is better optimized.
amazing content, I can't thank you enough for the effort put into this or the sharing of information. More people should make content like this. Technical expertise and well spoken. There isn't enough i can say about this.
wonderful job, keep up the great work.
"Keep Right"
Turns Right
Brackey your not allowed to drive anymore.
you're* not allowed to write anymore. XD
@@captainfordo1 error 418: I'm a teapot
Alex error 420: me me big boi
@@Cookie204 "Y"ou're not allowed to write anymore.
@@BobrLovr You're not allowed to ''type" anymore.
FINALLY, AFTER LIKE 10 TUTORIALS I FOUND ONE THAT WORKED. THANK YOU!
I'd love to see you do a video on the whole 3d animation thing, IDK how to tell when its idling, attacking, running, jumping, etc
it's awesome that he made the flying enemy so that you could also use it for top down.
Brackeys is the BEST serious you CHANGED my life 😁😁😁
This is awesome and very helpful, but what about walking enemies that need to jump across platforms or onto higher surfaces to continue chasing the enemy?
That's what I've been wondering for the past 4 and a half hours
ha
Just program it yourself lol, use a little bit of intuition. For example, I've never done it, but I'd check for ledges one tile or so in front of me and if so, Jump(). If you want to make it sophisticated, check also for ledges that can actually be reached by the jump, so the enemy does not jump fruitlessly into a void.
Honestly, from playing and watching tons of 2D platformer games, there aren't actually that many that let enemies jump on platforms to follow players. Obviously, it makes them more viable as enemies, but it's not something I think many games do. Most of the time the enemies just fall under the platforms and the player gets to progress without opposition. In away, from a design standpoint, this works fine since it gives the player a sense of taking care of the enemies without having to brute force them.
I personally think jumping over grounded obstacles is enough. A platform in the water, just have the enemies stop at the edge or fall into the water and die. Or I guess you could do what Terraria does and give enemies a set jump and if they make it, they make it, otherwise they fall.
@@VidimusWolf Could get complex, but I suppose you could use vertical raycasts to check the corners of the enemy sprite to see if it's on a ledge, and if so, use horizontal raycasts to check a specific distance out that correlates to the limit it can jump. And if it is close enough, immediately jump before it fully goes off the ledge. Anyone using Rigidbodies might not have used raycasting too much, but anyone using raycasting as the basis for their controllers will probably do it that way or similarly (I'm new to raycasting, so I could also be speaking out of my ass)
@@Shadowsphere1 Great response, I like you viewpoint on this!
What about a tutorial that does navigation for 2D ground-based enemies? I'd love to learn the process behind making entities jump and drop down through platforms to pursue the player.
just don't set gravity to none, and add a box collider to the enemy
Add colliders to the enemy and add a ridgid body 2d so it is affected by gravity.
As for jumping, your probably are gonna have to do some code on how the enemy will jump when it hits a wall.
these intros are just getting better and better
If you did a scan and it didn't register any obstacles, it's because you need to add a Tilemap Collider 2D to your tiles!
Top ! Thank you for the information its all I was looking for.
@@TheOneTaboo yall run this bitch! thanks for the info
you sexy gorgeous being xxxxxxxxx
I did that and it's not working. What else do I need to do?
What if you want the enemy to use gravity and jump after the player? I'm trying to allow it to use gravity based on the enemy's rigidbody but, it's falling slowly for some reason. When I disable the pathfinding script, it falls normally. When I use the pathfinding gravity, it falls through platforms even though I set the layermask in the pathfinding script to include the platform layer.
you should try to make the enemy follow after the path only on the x axis and only jump if the next waypoint is higher than a certain threshold and the enemy is grounded
When i finished my bird enemy at my second enemy which i want to be on ground so i just added some gravity scale on the enemys rigid body and that actually worked.
Except i want the enemy to jump whenever it needs to.
rip brackeys your tutorials still rock tho
22:06 "That should look even better"
*bird starts flipping super fast for no reason at all, buggy as heck*
"Yup, I definitely like that quite a bit"
Yeah, I'm having issues with this as well. Have you found a solution?
1:40 is about where it starts
Nice man. Just started my phone and u uploaded this vid.
Something worth noting, on path complete you want ot set your next waypoint to 1 not 0. This is especially important if you're updating animations based on speed and direction, and if you're not using forces to control your movement.
i.e.
private void OnPathComplete(Path p)
{
if (!p.error)
{
_path = p;
_currentWaypoint = 1;
}
}
Is there a way to make the enemy only follow the player when their close enough to them? My enemy''s stay in their grid, but follow the player no matter where he is on the map.
I've never used this pathfinding package, but generally speaking I would use raycasting to know if the player is in range with the enemy. Check the package documentation, maybe there is something already implemented there that fit your needs: arongranberg.com/astar/docs/
Just use collider trigger.
Im new to unity haha so i dont know much buy i use collider trigger to turn tell my enemy to follow my player within a distance.
If you're still seeking the answer, this is my script: pastebin.com/7qjvCpwf
It's a bit different from the one shown in the video :)
@@danielesusino7692 THANK YOU SO MUCH for putting the code in a paste. Way easier to follow and get what you need when it's colored and indented adequately.
Thanks for promoting my skill share course :)
www.skillshare.com/classes/Unity-Basics-A-Monetised-AndroidiOS-Game-in-4-Hours./1482234656
AddForce already scales by fixed delta time ^^. In fact, if you do AddForce(direction.normalized * mass * drag * speed), you'll get a max velocity that is equal to the speed measured in units per second. Great video!!
I took away deltaTime and now the sprite is zooming all over the screen.
Pretty sure you need deltaTime in there.
@@saydoer That's because FixedDeltaTime still returns 0.02 (by default) so if you you multiply by it, it'll change your end result. It's basically multiplying by FixedDeltaTime once automatically in addForce, and again when you do * Time.FixedDeltaTime. My guess is that you might be using large numbers like 500 for addForce which is a lot. Also if by chance you are doing addForce in Update instead of FixedUpdate then you might be adding that force more often than needed. Try the formula I mentioned above in Fixed Update with those values pulled from the rigidbody and you should get really consistent, predictable results. The catch is you'd have to either not use zero for mass and drag, or you'd have to add some small number in the code to keep it from applying a total force of zero
@@elpainto1 I'm following the video in all respects, so yes these are going into FixedUpdate.
I am adding a force of 500 for the speed, so that is probably what's causing it.
Even after reading your description, I don't understand the difference (aside from the math) between your way of forming this vs. using force = direction * speed * Time.deltaTime.
What, exactly, is gained by doing it your way?
@@saydoer what you get when you bring in those other values is that the resulting speed is ( or is close to) a velocity in units per second that matches the speed variable you pass in, even if you change the mass and drag of the rigid body in the inspector.
Maybe it's 3 yeas after, but I need to say your answer saved my project! Thanks!
This tutorial worked like a charm for me this time. Came back to it when i got a better understanding what the codes meant.
Having some issues with this. I am using this code, but having my object move a set distance each update in the direction of the "direction" vector created using this code (as opposed to applying a force like the video does). But when the path invokes again and recalculates a new path to the target, there is a weird stutter that occurs. I think it is that the first new node that is generated when the path recalculates is actually slightly behind the object, causing it to turn back for a second, then continue moving towards the target. It creates a very disjointed-looking result. I haven't been able to solve this. Anyone have any ideas?
Edit - Fixed it by making it so that when the currentWaypoint = 0, the vector current_waypoint is calculated using currentWaypoint +1 instead of currentWaypoint. Thereby skipping over to the next way point after a new path is calculated.
Yer videos are incredibly simple to follow and understand. Makes it super easy to Learn and actually Retain information. Thank you!
Brackey: *makes reached end of path variable*
Also bracket: *never reads it again*
I ALREADY MISS U GUYS, IVE SEEN THAT INTRO LIKE 3 TIMES AND IT ALWAYS MAKE ME LAUGH
10:43 when I execute the flip script the a* pathfinding script sets my sprite scale to 1 even though I want it at 7, any way I could change this or prevent it from happening?
try to make thу flip transform.localScale = new Vector3(-7f, 1f, 7f);
@@mikhailperkhov figured it out thànk you
I know you said you solved the problem, but you could also go to the 'Import Settings' for your sprite and adjust your 'Pixels Per Unit' value until a scale of 1 looks like your current scale of 7. Then you won't have to write the extra code.
@@soco5338 stopped working on that project but thanks anyway:-)
@@omada10dipae rather than using the editor to change the value, I used my main player script and manually updated the scale on each tick.
Thank you so much for this! I hope you'll keep going with this platformer pathfinding stuff and expand it further. There seems to be tutorials and assets for everything other than platformer pathfinding.
At 18:30 you also need to change Time.deltaTime to Time.fixedDeltaTime
You could also set rb.velocity instead of Force and when Enemy reach destination set rb.velocity = Vector2.zero So, you won't have any overshooting.
Thanks for this video, it helped me with my task at school
thank you for the Video! but why i can't find tha component named : pathFinding ???!!!! PLEASE HELP
I had a problem with a similar code where I couldn't figure out how to implement a function and this video helped. Cheers
Me sees description saying Line of code
:D
also me seeing its his merch store
D:
I've been waiting for you to do this video for a while. Great stuff👍👍
How should we modify it for special enemies though? Like - what if an enemy needed to move in line of sight to fire a projectile? What if they had to manuever through an environment by jumping around or climbing ladders?
I already knew how to do this but I watched the video anyways cause I always learn something new from your videos, no matter what.
I wasn't wrong :D Thanks, Brackeys!!
HAHA intro XD, I thought there was a glitch with my computer lol
same lol
I think the biggest thing I learned from this was InvokeRepeat, never knew that was a thing, oh boy will things become easier from now on!
your videos hit different now that i know you won't make anymore
brackeys = god of unity youtube
My new dream: Take a photo with Brackeys on my graduation day.
How to pronounce you last name?
@@apchioryalexander6839 Peeticharoenthum
1:22 imagine saying that out loud in public
This is the tutorial I've been waiting for. Thank you brackeys!
I should learn by now that when in doubt, search for Brackeys. 2D pathfinding for a Metroidvania type game has been rattling my brain for a bit. 2D sidescroller pathfinding in general rattles my brain. Thanks for supporting the Unity community!
Brackeys: “Alright, let’s make some enemies.”
Me: 😂😂😂
that was enimeis you deaf!!
@Levi Ackerman I don’t know if the way you spelled “enemies” was spelled wrong on purpose or not...
those who know: 💀
Me in my dungeon having a nice time coding and seeing Brackeys' black bg not hurting my eyes.
0:49: ono, your skills hare wants to burn your eyes out lol
How about a tutorial for dummies on how to use the unity 2019 new physics features to predict trajectories?
.3
Hmmn
That joke at the beginning ! Love it !
I followed this tutorial and created an enemy in a top down game that follows the player.... I then created an enemy spawner script in the main camera and turned the enemy object into a prefab... But when I put the prefab into the gameobject in the inspector the spawn is working but the enemy does not move... I put the prefab on the screen and the same problem occurred.... In short I am unable to move my enemy when I use it as a prefab.... What's with this issue? anyone has a solution to this?
You need the script to automatically find the player to chase. You can add a line in the AIDestinationSetter script:
void OnEnable () {
target = GameObject.Find("Player").transform;
@@cceerroonn thats perfect
I already miss these guys
It would be interesting to see the AI of the ground character. With his reaction to obstacles and abysses.
Well, with the A*, he will just go under the target and try to fly 😅
But it would be very interesting to look at how to make an AI able to jump over holes and (why not) go back to gain momentum and jump further !
But I don't think we're going to see this on Brackeys because it's more about algorithm complexity than use of unity and its assets, unfortunately.
FOR THOSE WHO ARE GETTING GENERAL ERROS, just download different packages from the webpage he showed, doesnt need to be exactly the one he downloaded, one of those might work. The one he downloaded didnt work for me, then I downloaded 5 different ones (from the same link in the discription, just different versions), some of them worked partially, until I found one that worked completely.
Thanks for another great tutorial!
A great start for a beginner.
However, could you go over 2D grounded pathfinding with jumps and gaps, too?
I'm finding that way too!
I will never wonder why this channels wasn't remembered as a how to install plugin channel instead of an actual coding channel
Please make A SIMPLE Racing game that we can make in like 15 minutes. Love your videos. You are my favourite. Keep up the good work mate. Thumbs up from me.
Hey @Brackeys I have encountered a problem where the Scan button doesn't create unwalkable spaces around my obstacles (despite them having a similar settings to yours, did you ever happen to have similar problems? Do you have any suggestions? (tried potentially checking Z on my obstacles related to A* and setting them at the same level, as different ones didn't work, tried thicc height testing, my objects do have box colliders) And I sort of run out of ideas here as to what could be wrong.
Hey, a really cool video you got there.
Do you really need to use external A* when you can just lie your game down onto XZ plane and bake the NavMesh on a plane under the tilemap?
Awesome, please create more videos on 2D 👌🏻
4:33 Even when I set my Obstacle Layer Mask to a certain mask, the graph shows that everything is selected.
Are you sure that your obstacle object has a collider?
Hey there Brackeys, Great video, I was definitely looking for something like this! I have a question however, when you write the code to flip the Sprite based on the direction it wants to travel, is there any reason why you use the local scale to flip the Sprite over the the SpriteRenderer.flipX property? Thanks.
This is great, but would love if you could make a video showing more of you making the A* code! Its really easy to learn from you!
Can you make a tutorial on in-app-purchases? There are no good tutorials out there and it would be amazing if you can make one
Wont they be illegal soon tho? No more lootboxes
No, it will not be illegal, actually. Lootboxes just have to require the odds of getting items in the open, and they didn't say it was for lootbox purposes.
Im folowing your tutorial series in wicht you teach how to make a platformer in 2d... I had problems with the pathfinding beacause it was old.... But here you are with a new video of this.... I love you!
I wish you would have explained "nextWaypointDistance" a bit, since it can yield very different results based on the game you're making. I've found that increasing that value doesn't move my own character to the expected location. Decreasing it however makes you end up closer to the clicked location.
Thank you so much, this will help with customer pathing in a top-down shop managing game! Hope you're enjoying life post-RUclips :)
you should make a livestream focused on beginners, teaching them the basics of scripting in unity and etc!
Or you could watch his series “How to make a game in unity”
He was a legend😢😢
This came at such a right time. Could you please do some more on AI and some on testing??? That would be really helpful and thanks man, your videos are such an immense help...
You’re doing the lords work. Keep it up!
Super helpful, thanks ! ;)
However I think there is a little mistake here. Your condition to increment currentWaypoint makes the AI not going to the end of the path. the "newtWaypointDistance" acts like the endReachedDistance. Be careful for those who'd like to use it, that could surprise you :)
(It was a problem for me as I needed precise movements)
how did you fixed that? I'm trying for 2 hours, please help me lol
@@bwulf any fixes??
Summertime; Time to binge all you videos
Is there anyway this could work for a randomly generated level?
Not with the free version, i don't think so. the A* pathfinding project has a paid version on the asset store for 100$ that allows for that kind of thing as far as i'm aware
Run : AstarPath.active.Scan(); once your level generation is complete or when it gets updated, that should rescan all your graphs.
I don't know if this is the best way but it's doing the job for now ^^
you just need the generated prefabs to be on a "obstacle" layer. idk about the size of the pathfinding area but depending of what you want to do you can make a level that moves instead of the player (like those running mobile games)
@@sefiron91 That's personnaly what I've done and it works good enough for my randomly generated levels
If you are procedurally generating a big (or infinite) world, you could attach the Procedural Grid Mover (comes with A*) in the same object that has the Pathfinder, attaching the Player (or the Camera) as the target on the script. This is WAY more cheap than scanning every time.
Glad I watched the second half of this with the custom script. I spent hours trying to find a solution to why using all the default methods caused enemies to just overlap eachother and ignore colliders in general. Now my enemies crash in to each other the way I want it to.
How could one translate that to fit an enemy that doesn't fly but has to jump around the level just like the player does?
Put objs that make enemy jump in different positions with:
OnTriggerEnter(){
Jump();
}
cast a ray, and after the ray hits a wall it jumps.
I'd say it's mostly the same, only add the force in the X axis and have your enemy continuously jump up when either the path goes upward, or if the player Y is higher than its own. If you want it to only jump when there's a wall in front, a simple raycast forward should be sufficient to check :)
Maybe compare the x and y coordinates like if the if the enemies x is greater than the players x make it go left
Thanks Brackeys! I love the A* algorhtym and watch any video I see on it. I think I'll try this system since I don't have anything designated for 2D A* yet.
You should have seen the smile on my face when he said: no coding!
If you don't like coding, you should probably switch to something like unreal engine lmao
@@sneggulf Well I do like coding, and I prefer Unity for the community, but I just don’t like writing loads of C# scripts
this is exceptionally helpful, thank you!
Wait.... In the end you didn't use your "reachedEndOfPath" boolean didn't you?
Because if it ends up true you just return from your FixedUpdate, and if it's false it's not used anywhere.
Well, it could be useful if you want to add some other functionalities within this script anyway.
Also it is never true.
Awesome video as usual! I was expecting this topic some time ago. Thank you very much! :D
For some reason, when I implemented the A*, it stopped my character from jumping. I am using the same script that he used in the 2d movement tutorial. Any help?
In the Character Controller 2D (Script) of the player, add the Obstacle layer to "What is ground"
@@juancruzgarciamayocchi4509 Thank you!
7:15 look at the bird
There was an attempt to keep things PG
And there was a failure
Do i need that a* thing for the second part of the video because I can't find Ai path and *using pathfinding* doesn't work.
same issue right here, cant seem to fix it
@@DegenerateWino This is a tutorial on how to use astar, so yeah.
same issue
after reloading the code editor it will be fixed
THANK YOU SO MUCH! Tomorrow is my final project and my enemy did not move no matter what I did, thank you, not only now it moves, it also was easier to do!
great tutorial but when I tried to flip the bird in the script it told me that "the type or namespace 'AIPath' could not be found (are you missing a using directive or an assembly reference)" but the thing is I did use the using Pathfinding tag
same issue please help :(
@@aaarslanbek Never figured it out
I'm pretty sure that this is just an editor problem. I have the same thing and Unity doesn't complain but only Visual Code.
Edit: and the code work as it's supposed too, it's just that Visual Studio is complaining for no reason
Great video!
I was looking forward for this video for days..
Thanks Brackeys!!!
AIPath doesn't work n my game. I used the same version as brackeys dis but the using directive doesn't have a AIPath Object for me. HAve somebody an idea how to slove this?
You are the bestttttt game dev youtuber 😍. You always brings with new and unique tutorial. I like the way you explain things.
7:13 Oh god what are the characters doing