Unity: 2D Moving Platforms

Learn how to move platforms in any direction and how to move the player with them.
See how to upgrade your platform here:
👉 • Unity: 2D Platform Upg...
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Timestamps:
0:00 Intro
0:11 Moving Platform
2:28 Moving the Player with Platforms
#unity2d #moving #platform #unitytutorial #rootgames

[@RootGames]

See how to UPGRADE your platform here: 👉 kzbin.info/www/bejne/pojLZnpnbLqGa7c

[@Pedro_Marangon]

One thing to add for the parenting the player to the platforms is that, depending on the height of your platform, the player can touch it on the side or bottom and still be on ground, which means he'll be a child of the platform the same way. To fix that, you just need to check if the object that touched the platform is coming from a superior Y coordinate, like this: private void OnCollisionEnter2D(Collision2D collision) { if(collision.transform.position.y > transform.position.y) { collision.transform.SetParent(transform); } }

[@RootGames]

Yes, good tip! 😉

[@DangoGang]

eres como dios pero sin serlo por eso rene es suwako

[@MiguelRodriguez-ff9wl]

Shouldn't it be SetParent(collision.transform) ?

[@capnnemo5330]

Or you can use platform effector 2d

[@jansmix6033]

I love it, especially since the script for player staying on the platform is within the platform script to keep it simple (unlike in tutorials) so it works with different objects as well!

[@alespozar1075]

Man I am so happy this showed up in my recommended. Love your videos.

[@RootGames]

It's nice to hear that, thank you :D

Simple and to the point. Thanks!!

[@gabrielsouza9651]

Really awesome tutorial, simples and highly effective! Congrats and thanks

[@RobertoDYanis]

thx man it was a great help for player mouvement !

[@joaoviniciussantos7106]

thanks man, it really helped me, you are a true legend

[@personalgamedevyt9830]

Thank you for the concise tutorial. I realized I hadn't already commented and given thanks so I wanted to do so now as I was referencing my demo from your video.

[@RootGames]

Thank you, I appreciate it 😉

[@judahowens6040]

amazing tutorial, thank you!

[@UnknownJigsaw]

Thank you really helps the game run more smooth and such a simple solution!

[@RootGames]

Glad to help!

[@coalcooler666]

Amazing tutorial Thank you so much!

[@TheSlashpark]

Great tutorial! Thank you

[@nawfalnjm5699]

Thank you . finally i fixed the problem . your video is very very good !

[@RootGames]

Glad you fixed it, thanks 😉

[@dcry1003]

i was having a hard time moving my player along with my platform! thank you very much for the solution!!

[@RootGames]

Glad to help! 😉

[@dcry1003]

@@RootGames soo uhh.. ive been tinkering with the moving platforms in my game and uhh something happen where whenever my player enters the moving platform going sideways *except left to right up and down* it always change my player's shape and size *since the code is link to my player's transform thats probably why* oh and my player is just a standard 2D box sprite gameobject any tips on how i can fix it?

[@RootGames]

It’s hard for me to say something blindly, didn't quite understand you well. In this tutorial, we are not doing anything with the player's transform other than setting the parent. Any changes to transform must be somewhere else in your code.

[@alok8744]

Thank You😁

[@darkstorm4378]

Dude thank u so much

[@faizmohd732]

Thanks Man

[@doctorsuper]

Great tutorial! You deserve much more subscribers than you have!

[@RootGames]

Thanks! With time, people will come. More cool tutorials coming 😉

[@doctorsuper]

@@RootGames Awesome!

[@matijadokmanovic8226]

BEST DAMN VIDEO ON THIS TOPIC!

[@RootGames]

Thank you! 🤝🏻

[@IAMMAT87]

Thank you

[@highscore4866]

Hey that's pretty guuud :)

[@richardestes6601]

If anyone is having trouble with your character sticking to the moving platform and being unable to move/jump while on it, try checking to see if there's input along the horizontal axis (or however your controller may be set up) and then setting your player's parent to null. For example, here's my check right before I call my Move() method: If (Input.X != 0) gameObject.transform.SetParent(null);

[@argisnutz]

thx very much!

[@jonaswunsch2617]

if you want to stick to the platform again after moving your charakter you need to add to the Moving Platform Script: void OnCollisionStay2D(Collision2D collision) { collision.transform.SetParent(transform); }

[@nahnot6247]

Theres no Input.X. Im very confused

[@robotest4115]

thanks

[@rubabmubarrat]

Danke

[@bobbville]

Hey I'm making a dev log also and I just gotta say, your thumbnails are🔥🔥🔥🔥

[@RootGames]

Thanks :)

[@timetorelaxfocus9642]

Very cool. How would you make the movingplatform move in a circle or even rotate on it's own axis? Thanks

[@RootGames]

You can use functions that spawn objects (transforms) in a circle and then pass that objects as transform points to the array. Or you can manually create transforms and place them in a circle. For rotation use function transform.Rotate.

[@timetorelaxfocus9642]

@@RootGames Appreciate it.

[@JovsValorant]

Upload more 2d tutorials. I subscribed

[@RootGames]

Usually I upload once a week, sometimes two times.

[@zarlaart640]

If i want to make multiple platforms like the same 1st one moving I can just duplicate it right? Or should I drag and make it a prefab first?

[@RootGames]

Make a prefab so you can use it in other levels as well ;)

[@zarlaart640]

Awesome ❤

[@Sheldi]

Best tutorial

[@RootGames]

Thanks

[@Sheldi]

@@RootGames I have one problem, I want to make the platform change direction after touching a point. Any tips?

[@RootGames]

@@Sheldi Don't quite understand what you need to do, but for collision between points and the platform you need to add colliders/triggers to the points and go from there

[@veryvella]

thnx

[@MitkoD]

Nice video! Thank you for this tutorial! I couldn't understand why do we need Rigidbody2D for the platform as we use its Transform component to move it?

[@RootGames]

Because every object that moves and have a collider needs to have a Rigidbody2D component. Otherwise Unity will consider that object as static object. Unity doesn't expect that static objects move and then it needs to render the whole physics scene every frame (leads to performance drops)

[@MitkoD]

@@RootGames Thanks a lot for your answer and for sharing your knowledge!!

[@alijandaqi9019]

tnx

[@RootGames]

Feel free to subscribe so you don't miss future tutorials :)

[@rob6508]

nice tutorial! quick question though. Is there a way to make it so that the platform only moves when the player is on top of it?

[@RootGames]

When the player enters the trigger, set the speed of the platform to some number. When the player exits the collider, set the speed to 0.

[@MyMusic-pi6lz]

It shows the error An object reference is required for the non-static field, method or property 'Collision.transform'... Plz help 😭

[@paramecium_sp762]

Hello i have a problem with my character when standing on top of the platform. Everything works fine, the code works and my player character is moving with the platform but the player character is jittering and spazzing out when standing on the platforms, both horizontal and vertical moving platforms. I've tried changing the interpolate setting from none to Interpolate and then Extrapolate but still the player jittering/stuttering. I've followed your code exactly, can you or anyone help me solve this?

[@Krobelux]

You've probably already figured this out, but I've learned a lot of the jittery-ness is usually from the Rigidbody 2D - Collision Detection being set to discrete by default. Change this to Continuous (perhaps change it for each object) and that may solve your issue.

[@Chilly_M04]

Great tutorial, but for some reason my player is jittering when moving in the opposite direction of the platform while standing on it. Is there any solution?

[@RootGames]

Try to change the interpolation settings on player's rigidbody.

[@bosong7183]

将玩家对象设置成移动平台的子对象，有一个问题是，它会随着移动平台的缩放而改变大小，就是说要确保移动平台的scale为vector3（1,1,1），这是我之前做过的例子得到的结果。（虽然不知道你能不能看得懂。。）

[@RootGames]

谷歌翻译理解。是的，你应该小心，不要改变平台的转换。

[@VEOdev]

If anyone have a problem that the player have jittery movement in the platform, you have to change your interpolation in the player rigidbody to "none"

[@snowhornet0982]

I have a one way collision on my platform that stops working when i add this script.

[@IM-ws5if]

Everything is great but I have a problem when a player wants to jump from the platform the player's appearance changes

[@InternationalCheeseDude]

how do u add the points, do u use spheres?

[@RootGames]

Empty gameobjects 😉

[@RootGames]

Select the empty game object and in the Inspector change the icon to sphere.

[@InternationalCheeseDude]

@@RootGames thx, i was wondering why it wasn't working

[@hfucc0324]

Hello i have a problem with scale cause my platform's scale is not equal to player's one. So whenever tha player steps on, it's scale will be changed. Can you help me pls? thank youu

[@RootGames]

It's a bit tricky when you change the scale of the platform because the player becomes a child of that platform. However, by default, when you jump on the platform, the scale shouldn't change. Probably it happens if you use transform.localScale.x in your Flip function (the function in which you flip the player). To avoid that, try to flip the player with rotation. You can use these two functions: transform.rotation = Quaternion.Euler(0, 0, 0); transform.rotation = Quaternion.Euler(0, -180, 0);

[@hfucc0324]

@@RootGames That's really nice. Thank you so much

[@KDRchicken]

@@RootGames Thanks alot, I was running into the same problem :)

[@editsforevery1]

The platforms don't seem to move but only move when I touch them. It just gets stuck on one point.

[@DangoGang]

¡Gracias! Al carapapa de JoexScript no le entendía ni un poco.

[@aqa222]

I have a problem with my character not sticking to the platform

[@Apebek]

I am new to Unity and confused. I read that you should always use rigid bodies on moving objects and use FixedUpdate. Also that you should us velocity or movePosition instead of transform. I see everybody use update function and transform. I got the same result on a dynamic rigdbody but my only problem is that the platform sinks when the player is standing on it. Does anybody have some tips?

[@RootGames]

We use fixed update when we move objects using rigidbody component in the script, for example rb.velocity= something. If we move objects using transform, then use update. Your platform sinks because the rigidbody is not kinematic. Select your platform and set the rigidbody to kinematic type.

[@Apebek]

@@RootGames Thank you so much!

[@highscore4866]

I subbed

[@RootGames]

Thanks 😀

[@highscore4866]

@@RootGames 👍

[@bordexeditor5842]

When i am trying to jump of the platform, my player doesnt, why ? (i use velocity as movement in my PLAYER script, he can move on the platform well but cannot jump)

[@RootGames]

It has to do something with your jump script or layers. Make sure that platforms are on the correct layer (Ground or something).

[@MiguelRodriguez-ff9wl]

@@RootGames I have the same issue, when the platform is moving upwards, the player cannot jump, but as soon as that platform goes down ward the player can jump. I tried fixing with oncollisionstay2d() if input is jump then setparent = null and increase the jump speed by accessing the players jumpspeed variable via collision.gameobject.getcomponent().jumpspeed = 10f for example, it looks like it works but it still feels janky and can use some fine tuning. I just can't figure out why it won't let me jump when going upwards

[@panagiotiskotsias4496]

but my character doesn't have a rigidbody2D what else can i do so it moves with the platform

[@RootGames]

Every moving object that has colliders should have a rigidbody. Otherwise Unity will consider that object as static. Furthermore, even if you enable/disable/destroy objects with a collider, they should have a rigidbody component. Try to explore unity physics and rendering physics workflow in the documentation.

[@panagiotiskotsias4496]

@@RootGames I just added a rigidbody2D to my player object and put kinematic on it and it works fine :)

[@ray2dasherthedragon336]

For some reason my platform just keeps going to the left and doesn't go to the second point and back Edit: Nvm i fixed it I just did the mistake at the start where I made the platform itself the parent object instead of a empty object

[@Squilllo34]

What tod o when it jitters?

[@MiguelRodriguez-ff9wl]

try changing Update() to FixedUpdate()

[@Squilllo34]

@@MiguelRodriguez-ff9wl thanks

[@markallancarba5055]

When I stick to the platform my character will scale on thin. How to fix it ?

[@RootGames]

You must have the platform's transform scale to (1,1,1 or 0). If you change the scale, the player will also change the scale.

[@IM-ws5if]

try move in the platform and you well see the size changed of your player

[@RootGames]

You probably have the size of your platform different from 1. That is the core of the problem.

[@MohamadNurjaman]

i followed the tuorial, but not working on me the platform just falling down and bouncing

[@RootGames]

Make sure you use a kinematic rigidbody.

[@WhiteGreenBlueBlack]

Great!! But, when I jump from the platform it automatically moves to another position. Like teleporting. 😞

[@RootGames]

Follow the tutorial carefully. You missed something, this works 100% 💪

[@WhiteGreenBlueBlack]

@@RootGames I found the problem, is the scale and the flip. Particulary the flip, I still don't resolve that problem. When my player is facing left all works fine. But when it face right over the platform and then I jump the posX changes the sign, like a 180 degrees flip around the Y axis. I tried two methods for flipping: 1. transform.Rotate(0f,180f,0f); 2. transform.localScale = new Vector2(-1f, 1f); //or (1f,1f). In both cases it behaves the same but only on the platform, on the ground everything goes nice. Do you have an idea? Or maybe see the mistake?

[@WhiteGreenBlueBlack]

@@RootGames Solved, but what a way... I separate the sprite from the game object. So, I created a GameObject called player, I put the RigidBody, Collider and Script in this. Inside the Player I put the sprite, this Sprite only have the SpriteRenderder and the Animator. Then, I passed the sprite GameObject to the Player script, to make flips and animations. All this sounds inusual, because what I have seen in many tutorials is just a GameObject with the SpriteRenderer component, maybe there is a better solution. But now it rotates around itself when jump from platform and facing right. Anyway, if you know a better way please tell me. 😅

[@RootGames]

Strange, it should work just with one GameObject. I can't really much help you in YT comments, the core of this problem is somewhere but great if you managed to work around it!

[@InternationalCheeseDude]

the part gets stuck on the right part thingy

[@RootGames]

check the platform upgrade tutorial

[@xDTHECHEMISTx]

the platform is fine moving but from that small portion of code here Nothing is happening at all. My character is still sliding off. is there something more in this video not shown? And here is the exact code i put at the bottom of the platformer function script public void OnCollisionEnter2D(Collision2D other) { other.transform.SetParent(transform); } private void OnCollisionExit2D(Collision2D other) { } -what is "Other" supposed to be? for the Player Object itself? does anything have to match? Or that can be named anything? -when you just put the code that way simplified that way and showed then showed the result it just attached no problem. It didnt happen that way for me at all. You dont have a GitHub for Public studying purposes of these kind of scripts and example projects?

[@RootGames]

There is nothing more outside the video. Standing on the platform should work with a few lines of code just as showed. In case you missed something: 1. OnCollisionEnter2D and OnCollisionExit2D must be placed in the script of the moving platform 2. public void OnCollisionEnter2D(Collision2D other) { other.transform.SetParent(transform); } -in your example, "other" is the object that collides with the platform, in this case the player. Also no need to make Collision functions public. Make it private. 3. Make sure that the platform and the player are on the correct layers so that collision is detected and they can collide/touch properly

[@xDTHECHEMISTx]

@@RootGames ah i confused you with a different KZbinr i see. You two had similar tutorials and i had the same issue it seemed like. My apologies. You had collision. he had "Other". So then ill ask you then, when you have it like collision.transform.SetParent(transform); is the "Collision" expression there representing something? Is it connected to the player in any way. i was trying to spot what is it connected to but i was thinking it was supposed to be the object "Player". so there is some confusion with that for me. overall i got a bunch of stuff working but this platform stability issue is the oddest annoying thing now.

[@RootGames]

It's just a name for the object that collides with the platform. You can name it as you wish. Everything that collides with the platform becomes "Collision", you can get data from that Collision (GetComponents, manipulate objects through that, and other stuff). That being said, for the platform, it's good to compare tag and check that you use SetParent only when the player collides (use "if" statement and compare tag to check if the player collided, then use SetParent)

[@xDTHECHEMISTx]

@@RootGames Ah ok. That compare tag makes sense. thats what i saw in another method also. ill follow up with that and see what my results are. Thanks

[@xDTHECHEMISTx]

I got my Platform issue working now. It works perfect now. what i realized ultimately it was my characters ground collider. I had to adjust that better and then Make his rigidbody settings to discrete, start awake and none. And then it all started working fine no issues with standing on horizontal and vertical moving platforms

[@topias7436]

It works, but when i try to move on the platform, my player moves very slowly

[@topias7436]

Changed Update() to FixedUpdate() and now it works

[@RootGames]

Nice 🙂

[@supa6964]

I have the same problem. I tried changing Update to FixedUpdate, but then the platform block and camera looked really bad and choppy. Any other solutions? *Edit* I found another potential solution. On the Player's Rigidbody, there is an option regarding interpolation. You can set that to Extrapolate and it works. From what I read on unity3dtips.com, it says, "Setting the rigidbody to interpolate will make the rigidbody act similarly to a normal lerp, it’ll lag behind the wanted position more if the rigidbody is moving fast. Extrapolation predicts movement based on the current velocity of the rigidbody which allows it to keep up when the rigidbody is moving fast. However extrapolation can result in a mild ‘rubber banding’ effect where if the rigidbody hits a collider at high speed it may appear to clip inside or through it for one frame until the rigidbody realizes that the collider is there in the next frame." Hope this is helpful!

[@RootGames]

Yes, the solution is to change interpolation. Usually Extrapolate works better for me. This is something I talk about in my Unity 2D Master Course, so please check it out. Maybe it can help you :)

[@kapcapkapcap6104]

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