#archived-code-general

1 messages · Page 207 of 1

heady iris
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I'm not aware of a good system for intellisense w/ ShaderLab code

north pewter
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I have a question about particle systems. How can I make a particle system which sticks to the surface of a sphere? Apparently you can't change individual particle positions so I have to use a shader or something?

heady iris
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as in, the particles will get stuck on the sphere when they touch it?

north pewter
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no like they are generated on the surface and they move along the surface

latent latch
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Shuriken system's collision with bounce disabled will stick to collider surfaces

heady iris
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ah, so they need to orbit around

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like balls rolling around a planet's surface

latent latch
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oh, eh that's a little more technical

north pewter
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yeah trying to make a shield hit effect, I got the look I want from the particle system but don't know how to make it sperical

heady iris
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There's an "Orbital" velocity setting here

image.png
latent latch
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If you just want an orbiting effect that's pretty easy

north pewter
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I want them to all start at one point on the sphere and then move outward, still confined to the sphere surface

heady iris
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check this out

image.png
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Very tiny shape for the source. Offset the position by a few meters.

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add Velocity over Lifetime with a random orbital velocity

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0 start speed

latent latch
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You don't necessarily need to use the particle system if you just wanna script the logic yourself if you've some specific cases not handled by it.

heady iris
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All of the particles will start in one spot and then randomly orbit around

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You could set the shape's position to contorl where the particles appear from

north pewter
latent latch
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That's all the particle system really is. Just a controller for your particles with some built-in object pooling.

heady iris
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well, I don't think it's spawning a game object for every particle...

north pewter
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then why can't we change individual particle positions?

heady iris
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that would be a bit wild

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It's still CPU-based.

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unlike the Visual Effect Graph, with is GPU-based

latent latch
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Yeah, there's some mesh splicing up

heady iris
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It is much smarter than just spawning 500 objects

heady iris
# heady iris check this out

anyway, that should do it. The only annoying part will be computing where to set the shape position to make the particles appear in the right spot

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I guess that's in local space

latent latch
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I know vfx graph does use one single mesh and chops it into bits. I'm actually not too sure about shuriken, but they both object pool.

heady iris
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why do you say that they use object pooling?

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I guess they could be pooling some simple reference types

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I am thinking of unity objects.

latent latch
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The capacity you set isn't just the amount of particles expressed. It's a buffer for how much it will create when you make the system.

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VFX graph you usually want to make a large capacity of particles, even if you don't use them all.

north pewter
# heady iris check this out

I copied your settings to my existing particle system, it looks a bit different but I can't tell if it's following a sphere lol

heady iris
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well, make sure the start speed is 0

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or else they'll do uh, something

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i deleted the particle system already so i can't check easily

north pewter
heady iris
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the orbit isn't random. switch it to "random between two constants"

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little arrow on the right side

north pewter
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the mode?

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ohh nvm

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well its a good starting point anyway, thanks

heady iris
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it should be spawning particles that neatly orbit around a sphere.

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if it doesn't, you have something configured wrongly

teal silo
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Hello all, I am attempting to make a UI that the player is able to interact with through Kinect v2 hand tracking in gestures. It's been a bit of a nightmare so far but I got really lucky and was able to find an example from 2016 which used a custom Input Module. I got it working, for the most part. The player is able to move two cursors around (one for each hand) and interact with most UI elements, except for scrollbars. For some reason, scrollbars and sliders do not want to respond to the scrollHandler. It works for scroll view windows. If anyone has any sort of inkling as to why I would love to hear it, as it is driving me insane.

Code for reference:
https://hastebin.com/share/ligifiyeba.csharp

Hastebin

Hastebin is a free web-based pastebin service for storing and sharing text and code snippets with anyone. Get started now.

molten plinth
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what is the difference between Matrix4x4.MultiplyPoint3x4 vs Matrix4x4.MultiplyPoint vs

multiplying a vector by a matrix like this:

var transformed = matrix * vector;

ashen bough
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Hello, I have a sprite renderer with a box collider and I want the OnMouseOver method to do something when I hover over it. The problem is that when I move the mouse over it, the OnMouseOver does not execute, the colider is activated, the radius is set correctly and it is not a layer problem. That could be happening?

leaden ice
ashen bough
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In other places where I also use OnMouseOver, sometimes it does not detect the object until I turn the collider on and off

leaden ice
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Perhaps the rigidbody is sleeping

ashen bough
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He has it as kinematic

leaden ice
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you would have to show how the scene is set up

dusky lake
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I have setup a cinemachine cam that follow a target group (in this example 3 players) https://img.sidia.net/ZEyI5/xUCeMInu60.mp4/raw

How can I prevent it from rotating to get them all in frame? I just want the 3 to be in there and it zooming out if the characters distance themselves to fast

▶ Play video
ashen bough
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I have it set to Never Sleep, anyway if I remove the rigidbody nothing happens

leaden ice
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also this isn't a code problem

dusky lake
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oh yeah, sorry

lean sail
shrewd mulch
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is it possible to change the points in a closed sprite shape in code

lament elm
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Hi! I have this error while loading a Package: error CS1061: 'Image' does not contain a definition for 'texture' and no accessible extension method 'texture' accepting a first argument of type 'Image' could be found (are you missing a using directive or an assembly reference?)

I have 4 lines like this in the same script but I really don't know how to solve them... any thoughts?

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Here one of the line :

cameraFade.GetComponent<Image>().texture=texture;

spring creek
lament elm
spring creek
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Is this like a super old asset?

lament elm
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yeah I guess

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just trying to resolve the errors due to the old asset..

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hum I was able to resolve most of them except 1 :
error CS1061: 'Image' does not contain a definition for 'texture' and no accessible extension method 'texture' accepting a first argument of type 'Image' could be found (are you missing a using directive or an assembly reference?)

cameraFade.GetComponent<Image>().texture=CameraTexture(Color.black);

rigid island
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Image component uses sprites not texture

lament elm
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for the other ones I've added this line:
var newSprite = Sprite.Create(texture, new Rect(0.0f, 0.0f, texture.width, texture.height), Vector2.one * 0.5f);

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and replace texture by: .sprite = newSprite;

lament elm
rigid island
lament elm
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if I replace .texture by .sprite

rigid island
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yeah you're mixing two different types..

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can't put a cube in a circle shape

lament elm
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is it because of CameraTexture?

rigid island
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whatever your trying to apply to it is of type Texture2D but Image takes only sprites

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i told you, if you want to use texture2d use RawImage instead of Image

lament elm
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cameraFade.GetComponent<Image>().texture=CameraTexture(Color.black); to cameraFade.GetComponent<RawImage>().texture=CameraTexture(Color.black);

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?

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only for this line or for all the same lines? there are 2 more like this

rigid island
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if you have to pass textures then yes, idk ur code

lament elm
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cameraFade.AddComponent<Image>();
cameraFade.GetComponent<Image>().texture=CameraTexture(Color.black);
cameraFade.GetComponent<Image>().color = new Color(.5f,.5f,.5f,0);

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only the 2nd one for the texture

rigid island
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then use RawImage

lament elm
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ok it works now

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I have other errors but the game is loading, at least

rigid island
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should configure your ide

broken light
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is uv channels in unity mesh related to submesh ?

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or is channel something else

lament elm
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Thanks @rigid island , appreciated!

leaden ice
broken light
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ah i see

muted idol
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So I want to optimize my chat system because I encountered lag as the number of incoming messages increased. I googled and found if 2DRect Mask is helpful but I want more. I want to disable the masked message items. Any suggestions on how to do this? Thank you!

cosmic rain
muted idol
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I'm thinking if the message item which is the UI elements even if it's masked it's still need to be disabled for more optimized result. Or is it unnecessary?

lean sail
sharp sable
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a c# linq question - what is the method that's like Except, but for a singular element ?

cold parrot
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except with a single element ienumerable

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there are conceptually no single elements in linq

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you can do new []{myElement}

sharp sable
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yeah I thought of that, just don't like that I have to create an enumerable just to remove an single element
oh well

cold parrot
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the beauty of it that is removes the whole notion of singular/plural from its API

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this is what makes it so uniform and adaptable to all sorts of abstractions

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ofc at the cost of constantly allocating enumerators

sharp sable
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it fits quite well, just have one loop that has to process elements one by one

cold parrot
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but at the benefit of being lazy

sharp sable
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I'll just rewrite it in a different way to get rid of that step

copper star
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Does anyone know if this

return currentIslands.Find(item => item == island);

would return null if the currentIslands stores prefab references and island is an active GameObject?

cold parrot
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if you want to check if the collection contains the island, use Contains()

copper star
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hang on let me process that i'm low on mental ram atm

cold parrot
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you'd use a search only if you want to compare state of objects (properties and fields) not identity

copper star
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you've forced me to see this in a different way

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i must have been cooked when i wrote this

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thank you for your help

cold parrot
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well, happy to have been of help

muted idol
# lean sail How many chat messages do you have that this is an issue? You'll see a lot of g...

I limited the messages to 100. And it's a bit lag. I want to give you some short explanations with my chat system. So at the start it fetch the message from the server asynchronously. Each message will be instantiated to the chat box. So if you have like 100 messages the prefab will be spawned one by one continuously. I'm afraid if this is just my spawning method that are wrong. Or should I change to wait the system to fetch all and spawn them at once? Will this make any difference based on your thought?

neat yoke
muted idol
neat yoke
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Why is the message box not one Text or TextMeshProUGUI component?

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With 100 different text objects, you also have the overhead of the transforms, and presumably the layout group controlling them

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When really, all you want is a vertical box of text with newlines between each message

muted idol
muted idol
muted idol
lean sail
lusty zephyr
muted idol
# lean sail its hard for me to say because now a lot more context is brought in, also what p...

It's just lagging just once on start. While the messages is spawned and the user didn't open the chat box, when I'm moving the character it feels lag a bit for a while. After that it's just normal. That I want to repeat my question above. I'm afraid if this is just my spawning method that are wrong. Or should I change to wait the system to fetch all and spawn them at once? Will this make any difference based on your thought?

muted idol
cosmic rain
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Generally, you'll never have 100 messages visible on the screen at once, so it might be good idea to use a pool of fewer messages. Also, you should probably instantiate the objects during a loading or game start, instead of in the middle of the game.

lusty zephyr
muted idol
cosmic rain
# muted idol I have no idea about that pool messages specifically when switching between mess...

There's not much to explain. You can google "object pooling". It's a common technique in game development.

You would simply have 10-20(as many as fit on the screen + some extra just in case) text objecta pooled and initialize them with the message texts as needed. When a text object goes out of view you return it to the pool. When you need to show a new message, you take a text object from the pool, place it where needed and initialize it's text and whatever other info you need.

neat yoke
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Is it actually the creation/destruction that's slowing down the game?

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Or do you mean 'lag' as in a consistently low fps?

vague tundra
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In a 2D game, how can you apply a sprite to a scaled object such that the sprite has some fixed size and tiles on the object? (no stretching)

latent latch
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Usually just don't scale the objects

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otherwise make sure the sprite isn't a child of the scaled object

neat yoke
vague tundra
neat yoke
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Good luck!

latent latch
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Oh you just want to reduce this texture from stretching, that's all?

vague tundra
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I want to have a sprite applied to a scaled, 2D object such that the sprite tiles instead of stretching with the object

latent latch
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Unity shaders usually have a tiling parameters

neat yoke
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Do the sprite renderer shaders?

latent latch
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I'm not too sure about their sprite shader though

vague tundra
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Sorry was that question for me? I don't follow haha

latent latch
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yeah it does

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Just make yourself a sprite material and play around with the tiling there

vague tundra
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I'll give that a try, one moment!

fervent furnace
vague tundra
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Ahh yes, so sliced isn't what I'm after but I have tried the SpriteDrawMode.Tiled option.
It ALMOST works, however...
It doesn't seem to scale the physical object, only the sprite that is rendered. That might not be the best explaination but I have a screenshot that explains my issue - just looking for it

latent latch
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The slicing seems more dynamic in this case

vague tundra
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So in this case, the object itself isnt scaled, but I have SpriteMode = Tiled, and have modified the Size of the renderer.
Which seemed to work until I applied lighting haha... the original object is still 1x1

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@latent latch I don't seem to have an edit option for my shader, like in ur image except 'edit' button is also disabled

latent latch
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You need to create a new material

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in this SS you're using unity's single sprite material, but basically you want to make a copy to apply your own settings

neat yoke
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I would not have expected that option to do that

vague tundra
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Haha yeah ikr so weird

neat yoke
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I mean I get why they made it like that, but the "Size" under "Tiled" seems to indicate the tiling size, not the quad size

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It's also reasonable @vague tundra that instead of changing the material, you just have a script that keeps the collider and renderer sizes identical

vague tundra
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@latent latch Very close! It looks like I'd have to create a material for every wall segment, as I'd need a different X and Y tiling for each wall segment... is there a way to have it set dynmically? Let me know if I need to explain that further haha

neat yoke
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Yeah, that's why I was thinking what I suggested may be better

vague tundra
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@neat yoke Oh yes so interestingly I've actually done exactly that - my colliders are the exact same as the sprite renderer's size... but it seems the actual game object is somehow still at 1x1

neat yoke
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The gameobject has no geometry

latent latch
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If you need to change the UVs for different wall variations then you need a new material for each

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but otherwise the idea is that it's reusable (and is easier to batch)

vague tundra
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You can see the green outline in the screenshot - the collider - is the same as the sprite renderer's visual

neat yoke
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What is the white square?

vague tundra
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Thats the original 1x1 XD

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as you said, very weird XD

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Well I guess I just assume it's the 1x1... Idk what else it could be?:0

neat yoke
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1x1 of what? are there other components on the object

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An empty GameObject is just a transform - it has no volume

vague tundra
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Well it started off as a square... but I imagine that's driven by the SpriteRenderer's sprite.
Which is now a square tile so thats also square

fervent furnace
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the white square is shadow caster

vague tundra
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Ooh what's that and how do I make it the same as the visual size of the object?

neat yoke
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ShadowCaster2D appears to be defined in size by vertices

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@vague tundra URP or builtin?

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idk if builtin even has a shadow caster

vague tundra
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Oooh wow, yeah okay I do have a ShadowCaster2D attached haha 😅

URP

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Oh yep I see, I can edit the shape of the shadowcaster using said verticies. Thank you!

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Seems to be a very manual process... I'll investigate a way to automate it. Thanks everyone(:

neat yoke
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It generates it on Awake based on the object bounds if it's null, but otherwise you can't seem to change it

vague tundra
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Oh jeez that's a bummer... hmm

neat yoke
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Once again, the Unity devs love of private/internal causes issues :V

cosmic rain
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No program can handle it, unless your code handles it.

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This is totally normal. Don't leave null reference errors in your game.😅

subtle sable
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it should break callstack on lateupdate on this object but i'm not shure if it should couse application crash O.o

cosmic rain
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As for the reason of the error, you'll need to debug it.

Null reference is undefined behaviour, so it's totally normal to crash if you don't catch them. The editor has different behavior, because you don't want it to crash while debugging.

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Where there might be a null access, sure.

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And an unhandled exception does what?
That's right. It crashes the app.

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I don't know about these specific "sometimes".

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Might want to provide an example.

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Pretty sure it crashes. Maybe there might be a difference between development and shipping builds. About that I'm not sure.🤔

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Aight. I'll try when I get home.

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Anyways, an unhandled exception would cause a crash. That's just how programs work. If it doesn't, then unity catches it.

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It really depends on where it occured.

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It's not sometimes. It depends on each specific case.

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You should investigate the error. A reference can't just "disappear" suddenly.

cobalt kite
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friendly reminder to never use is null when it comes to unity objects

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...and also never reference them by an interface, I guess

cosmic rain
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From the look of it, the error is thrown when accessing the "gameObject" property, which probably goes through the C++ land, at which point unity might handle errors differently.

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Probably some code running on a destroyed GameObject or a "not unsubscribed in time" delegate/event

viscid willow
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Good day everyone,
I'm having trouble with quaternions. I have a 3D Gameobject of a hand with animations for VR interactions and want to apply these animations onto the hands of a fullbody ready player me avatar. Since rigs of both fbx and orientations of each joint pair (for example vr_index_2 <-> rpm_index_2) are differently, I try to apply the rotation from each joint of the vr hand onto each respective joint of the the rpm hand.
At first I tried to save the local rotation of the vr joint at Start(), convert the rotation offset during runtime into world space and apply that onto rotation of the respective rpm hand joint by converting the rotation back into rpm hand joint space and adding it onto its' local start rotation. Which I didnt manage to implement and in theory requires both hands to be parallel, so that fingers dont suddenly go sideways if the hands are perpendicular. Then I tried to figure out the differences between each joint pair.

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Adding a simple rotation offset work? Didn't work, because rotating around the z-axis of the vr joint isnt the same movement as rotating the z-axis of the respective rpm joint.
Applying the x,y and z values of the vr rotation to different x,y and z fields of the rpm joint rotation? Seemed to work. When I convert the rotation as follows, the rotation of the rpm finger joints look to be similar to the rotation of their respective vr joints, but not for all.
convertedRotation = new Quaternion( x: -source.localRotation.z, y: -source.localRotation.x, z: source.localRotation.y, w: source.localRotation.w);
The rotation of the joints for the thumb and knuckles are completly off the board. I tried to ... errr ... reenact the way I got the shown quaternion convertion, which works for the joints #2 and #3 for index, middle, ring and pinky finger, but it seems it was a lucky guess. And by now I'm simply confused about my lifechoices. I hope you can help me find some clarity.

thick terrace
viscid willow
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You mean like this?
ne = Quaternion.Euler( x: -source.localRotation.eulerAngles.z, y: -source.localRotation.eulerAngles.x, z: source.localRotation.eulerAngles.y);
Seems to work the same, but since I'm not sure if the joint pairs are in the same left- or right-handed coordinate system, this is the more savely approach i guess?

hexed pecan
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Hmm I doubt that swizzling xyz angles will give the results you want

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You mentioned 'offsetting the rotation', you could do that by multiplying the rotation with another Quaternion

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For example something like rotation = Quaternion.FromToRotation(Vector3.up, Vector3.forward) * rotation

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Just an example - you need to find the right conversion rotation

viscid willow
hexed pecan
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Thats the general idea yeah. If I understand your problem

viscid willow
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Thanks. Let me see, if I can make it work.

vague tundra
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@neat yoke It looks like the ShadowCaster2D will choose its shape when its attached to the object, so I attached the ShadowCaster2D to all my walls at runtime and that seems to work 👍

neat yoke
quartz folio
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Please don't post nonsense, there is no off-topic here, and unless you have an actual question or discussion it's just spam

patent hound
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just to double check if i go into the collider component of an object and change the layer overrides to ignore a layer will the OnColliderEnter function still be called if it comes into contact with it? I have enemies that need a large capsule collider for proper movement and navmesh interaction but i want my bullets to ignore their capsule collider and only check the hitbox colliders attached to the bones

leaden ice
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that layer will be ignored

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there will be no collisions

patent hound
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I assumed this was the case, but wanted to double check

swift falcon
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how to enable and disable ray tracing based on c# script please?

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(HDRP)?

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ping if know how pls ❤️

heady iris
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isn't that controlled by volumes?

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you'd want to add a global volume with a profile that turns on raytracing

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then turn the volume on and off

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(or just turn on the specific volume override)

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i do graphics settings that way. one global volume with a many overrides in its profile.

heady iris
swift falcon
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thanks fen :))

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thats a great idea

royal temple
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Hello guys, do you know if it's a bad idea to change Canvas RenderMode at Runtime please? Changing from Screen Space - Overlay to Screen Space - Camera and assigning Render Camera manually from script. I have many problems and I'm wondering if maybe I should simply change my whole approach
It seems it's not such a bad idea since Unity documentation is doing it here: https://docs.unity3d.com/ScriptReference/Canvas-renderMode.html

heady iris
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I don't see any reason for it to fail

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But it does sound a little weird. What are you trying to accomplish?

final shard
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Im not sure why but my code keeps stopping when the int thats displayed value reaches 6

latent latch
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sounds like your unlucky number

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also probably want to post your code where you think the problem persists

heady iris
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we can do nothing with this little information

final shard
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oh

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okay

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sorry

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I think i found the issue

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I was using ^ as an opperator

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but I dont think C# supports ^

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does anybody know if there are other ways to write exponents?

heady iris
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^ is the bitwise XOR operator.

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If you want to perform an exponentiation with floats, you can use Mathf.Pow

final shard
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does that exist?

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ive found sources saying it does not

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weirdly

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im just using an online C# compiler atm

heady iris
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C# doesn't have a built in way to do integer exponentiation, I don't think.

final shard
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yeah

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Okay

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so I could just use a for loop

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and have it repeat

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until its repeated the ammount of times

heady iris
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yes, or maybe do repeated squaring if the exponents are large

final shard
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yeah

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okay

heady iris
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of course, you'll run out of space in the integer very quickly

final shard
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thanks!

final shard
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well

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probably not

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because the integer limit is like

heady iris
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2^32 would overload an int

final shard
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yeah

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im going nowhere near that

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max is prolly like a billion

knotty sun
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also works for ints

rancid kindle
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hello!!
so i wanted to create a code where a blood particle will show up at a particular health bar, im using an if fuction for it but like creating if for not just 10f but for 15f and 5f will make the code unorganized so is there some way to like code it in such a way that i can put the health together in the if statement instead of putting it individually?

image.png
rigid island
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don't ever hard code numbers

nimble valve
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i need help fixing my animaton from looping even tho i have loop time off. PS i dont rlly know anything about coding

image.png
leaden ice
nimble valve
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and how would i make it so the trigger exists

leaden ice
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create it in your animator state machine

nimble valve
rigid island
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thats not parameters

nimble valve
rigid island
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ok, where is UpDownAttack

nimble valve
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oops i didnt realize i put it with the -

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aight thats fixed but its still looping on its own

rigid island
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I see the screenshot says its in Update()

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don't know your code though, idk which conditions you put

nimble valve
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i followed a video guide for this

rigid island
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hmm it shouldn't loop, do you have it unchecked on animation clip ?

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also what exit conditions you have for animator

nimble valve
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yea i have it unchecked

rigid island
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unchecked exit condition ?

nimble valve
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when i uncheck it then it says it wont work

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aka will be ignored

rigid island
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Exit time unchecked means it needs an exit condition with params or it yells at u

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w exit time, it exits the state if animation done(assuming no params on transition)

nimble valve
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so basically

leaden ice
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it should be unconditional

nimble valve
rigid island
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iirc if the transition duration is longer than the clip it loops the clip a couple times, we can't see the timeline tho xD

nimble valve
rigid island
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hmm looks fine there

leaden ice
nimble valve
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nope

simple egret
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Hm exit time 0? The animation will not play or will just look weird as it interpolates to the Idle state

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Did you mean to set exit time to 1, and transition duration to 0?

nimble valve
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nope i havent

rigid island
nimble valve
rigid island
nimble valve
#

i think forever

#

yea forever

rigid island
#

there is something probably in plain sight

simple egret
#

Maybe a condition from Idle to Attack is always true? You can view what state the animator is in while in play mode, by selecting the object that has the animator

nimble valve
#

lemme see

rigid island
#

gotta be Idle to Attack probably has that or perhaps no conditions at all?

#

maybe you forgot to put trigger conditions

nimble valve
#

from idle to sword attack has a condition

rigid island
#

updown attack

#

isn't that whats looping ?

nimble valve
#

that doesnt have 1

rigid island
#

well there ya go

nimble valve
#

yep i fixed it

#

thanks guys

rigid island
nimble valve
#

and one more thing

#

a what

image.png
rigid island
nimble valve
leaden ice
# nimble valve

usually happens when you try to set a parameter on a disabled animator

#

or perhaps one that lives on a prefab

nimble valve
#

also this happens

image.png
leaden ice
#

instead of a prefab

nimble valve
#

it only clones itself when i do the UpDownAttack

#

nvm now both

#

i just deleted the npc now it doesnt multiply

#

alright all fixed now

tough storm
#

quick question, im trying to generate patch notes for my plastic scm repo, the thing is they generate a lot of information when i use the cm log --from=(insert number) command

#

i only want the comments, i dont care about the date,owner,or files that were changed

leaden ice
#

or cm log --help

tough storm
#

it has some info, but nothing seems super obvious and i can't find the docs on the specific command online

#

honestly plastic's docs have been really frsutrating to find if i can find them at all

leaden ice
#

that's annoying

#

git log --help has like everything

tough storm
#

wait i might have missed something

#

one sec

#

yep im silly

#

cm log --from=4200 --csformat="{newline}Changeset {changesetid}{newline}{comment}"

hard viper
#

i have an idea, and need someone to tell me if it is completely stupid.

I want to make a system where i can specifically make collider A send force to collider B, and not B to A, without changing how they interact with other colliders in the same layer.

Idea: For every rigid body, duplicate its collider. Make the original collider send forces to nothing, and the duplicate solely receives forces (no callbacks). Then individually call IgnoreCollider on the duplicate as necessary.

Good or dumb?

tough storm
#

sounds like it could end up being expensive

hard viper
#

that’s my concern

#

but I don’t otherwise know how to achieve the desired result

#

i’d also need to refactor a bunch of code because I now have 2 colliders to do the job of one

tough storm
#

you could like, temporarily disable the rigid body of one

hard viper
#

maybe it would be easier with a diagram

#

red blocks dynamic RB, blue moving platform is kinematic RB, and green terrain is static

#

i want red blocks to ride each other and the lift, and things don’t send forces to whatever they are riding

#

because it otherwise screws with trajectories in a really complex way

#

I want middle block to receive force from bottom block (so it doesn’t fall through), and still send force to top block (so it can lay on top)

#

does it make sense what I’m trying to get?

tough storm
#

i'd suggest either you make the blue moving platform temporarily not recieve new forces, or you could write a simple custom physics script that would allow for what you want, just try to avoid the double collider thing cause that could get real expensive

#

it does make sense yeah, its just a tough problem

#

personally i'd just want to try and have the blue platform "on rails", that is, not a part of the physics if possible, and then handle the rest as given

hard viper
#

the blue platform is on rails

#

it is kinematic, and does not care about what is above it

#

but the blocks on middle and bottom are a problem. they get forces from above, which screw with their trajectory.

#

to be clear, when blue platform moves, every method I’ve tried either has blocks start clipping through each other, or the blocks move with the platform without moving like normal dynamic RBs

#

but you’re right that the double colliders is so bad T.T

tough storm
#

have you tried setting the collision mode to continouous? @hard viper

#

continuous dynamic

hard viper
#

yes. everything is continuous

#

colliders only clip into each other when using transform.Translate. Because that has been the only way I’ve found to make them properly move in reference frames

#

i want to move away from that, and I’m considering using friction and attractive forces. But I will also need dynamic rigidbodies in the middle to ignore forces from above.

#

Otherwise i’m basically applying artificial gravity, where each block accelerates the whole stack down super fast, especially in midair

#

it’s a never-ending problem, fen. lol

tough storm
#

i might be wrong, but if youre mixing physics with doing raw transformations, that might be part of the issue here

hard viper
#

absooutely. but idk how to make a block move with the platform below it using forces

#

friction is an idea, but I also need to know how to keep them in intimate contact when the platform moves vertically

#

if you have an idea for how to make that work with forces, I’m very open to suggestions

tough storm
#

you could parent the red blocks to the platform, and stick with it only using transformations, but honestly this is a really hard problem

#

theres probably papers written on it

hard viper
#

parenting transforms doesn’t work. the dynamic RBs just don’t respect the hierarchy at all

tough storm
#

hm, it might be a good idea to ask somewhere that has a more physics sim oriented perspective then, im not super duper knowledgable about unity physics and at this point im not sure how id get around all this, besides just doing some kind of artifical gravity thing

hard viper
#

ty for trying anyway

rigid island
#

why was crossposting this necessary ?

swift falcon
#

Can someone help me structure something a bit better so that I can cast more efficiently?

So here is 3 examples of data I want to cast
public class PropData : StackableData
public class WallData : StackableData
public class FloorData : BaseData

Here is the classes I inherit from

public class  StackableData : BaseData
{
    // If we stack on top of an object, we need the children to be stored on it
    public List<PropData> children;
    
}

public class BaseData
{
    //  The id of the model
    public int id;
    // The variant of the model we have
    public int variant = 0;
    public int buildStage;
    
    public float rotation;

    // The save data for each mesh on the object
    [CanBeNull] [ItemCanBeNull] public MeshData[] meshData;
    
    [JsonIgnore] public GameObject gameObject;
}```
Now I want to be able to create a job by grabbing the data of a wall or prop, here is the JobData
`public class JobData : StackableData`

And I want to cast depending on the type like floor, prop, wall, etc.
```csharp
JobData overlapData = cell.data.floor;```^ FloorData

So how should I handle casting?
#

I want to be able to do "JobData = WallData" or "JobData = FloorData"

heady iris
#

hey @unreal notch , I did some more digging on that persistentDataPath problem

#

so yeah, it changes every time you push a new build to itch. it's based not on the page URL, but rather on the folder that the game data is served from

#

and that changes every time.

#

did you wind up using an explicit idbfs path?

#

i'm going to try that next

swift falcon
#

need help with some player movement

rigid island
leaden ice
#

Referring to this example: JobData overlapData = cell.data.floor;

swift falcon
leaden ice
#

then there is no casting required

# 
FloorData overlapData = cell.data.floor;```
junior maple
#

Which is better, using singles or sprite sheets for furniture? And in the case of using sprite sheets, use 16x16 pieces in objects that are a little larger, or cut it so that it is a single sprite (32x16)?

I am worried that since the spritesheets are so large, they will have to be loaded when loading the scene, when I will only be using 3 objects from that spritesheet. What do they say?

rigid island
junior maple
#

Im sorry

timber kernel
#

hey yall, if i use VSCode, do i need both the visual studio code editor package and the visual studio editor package? or just the one for code?

rigid island
swift falcon
#

each job has JobData for 1. Building. 2. Deleting

rigid island
#

make sure its updated

junior maple
rigid island
junior maple
#

Ohh, I understand now, thank you, and sorry for not following the channel topic.

leaden ice
rigid island
patent hound
#

so, looking for an opinion here, I'm adding in a "sound" system for the enemy ai in my game so they can "hear" the player. obviously adding some actual sound listener is way overcomplicated and would cause a ton of performance overhead. how would you implement this for footsteps and for gunshots?

heady iris
#

well, I recently implemented a sound system for detecting the player in a stealth game

#

The most basic option is to just give each kind of sound a range. Any listener within the range can hear the sound when it triggers.

patent hound
#

i'm thinking since it's indoors i will break the game up into individual rooms and just trigger the current room and the 2 adjacent ones with a gunshot, and for sprinting just make a big collider trigger and only activate enemies inside it when sprinting

heady iris
#

you could also be a little more "realistic" and just give each sound an intensity, which drops with the square of distance

#

and then make enemies notice any sound that has a high enough intensity

heady iris
swift falcon
# leaden ice I don't understand the relationship between `JobData` and `BaseData` / `Stackabl...

I did that because each Job can be converted to a save.

So like if I want to build a floor, all the data required to make that floor (Which will be saved in FloorData) will be inside that job.

Same for props, all the data required to build things will exist in it. However JobData has some extras that are not required by the Floor / wall data... if it's a valid location to build and storing original materials to a preview material can be added to objects

heady iris
swift falcon
#

All types of items need to be able to go into JobData because... they're basically the same thing, just JobData has a few extra details

heady iris
#

It uses a NavMesh.

#

That is an interesting option to get stuff like "sound doesn't go through walls" for (realtively) free

#

but there are lots of gotchas. for example, what if the sound origin is slightly out of bounds? what if the player is 30 feet above the ground?

patent hound
#

thankfully i do want sound to go through walls, so a simple range check would suffice

heady iris
#

Unless you're trying to make a very realistic simulator, you probably want something more predicable, like a simple range check

leaden ice
patent hound
#

how would you check for objects in a spherical range without too much overhead, i was leaning the direction of just a sphere collider

heady iris
patent hound
#

i see in the documentation there's a function called physics.overlapsphere which might work

heady iris
#

Physics.OverlapSphere sounds reasonable, yeah

#

It's actually slower than just brute forcing it for small numbers of enemies

rigid island
#

OverlapSphereNonAlloc is goat

heady iris
#

but a physics query should behave better if you have lots of enemies, most of which are nowhere near close enough

heady iris
#

🧠

swift falcon
leaden ice
patent hound
# heady iris tbh you aren't going to do THAT many sound checks

it's a 4 player coop game where players may have automatic weapons, and there could be up to 20-30 enemies in a room waiting in an idle state, so in theory you could have 4 players that are checking 120 objects to see if they are in an idle state 4 or 5 times a second

leaden ice
#

also i have no idea what PropData is, you haven't mentioned that up to now

heady iris
patent hound
#

so i think performance overhead will be quite a big deal

heady iris
#

You may want to add a timeout after each noise check

#

you can probably avoid checking every single shot

#

although, you'd have to be careful, or players could silence their weapons by taking a step and then firing right afterwards

#

:p

swift falcon
heady iris
#

maybe a timeout that's ignored if the new noise is louder than the old one

unreal notch
# heady iris did you wind up using an explicit idbfs path?

nope! solved the problem though
it had something to do with the string being sent to the javascript being UTf16... needed to explicitely convert it to UTF8 both on the way in, and on the way out

and also, I had to change the path for webGL to
path = "koboldsshiny" + saveIndex;

because local storage doesnt like complex file names

patent hound
swift falcon
#

Thanks for the help, I'll look at redesigning this a little

heady iris
patent hound
unreal notch
#

nice

heady iris
#

The save data still exists after uploading a new build

#

The one catch: you have to create the directory first!

#

I was trying to write to /idbfs/foo/save.json without creating the /idbfs/foo directory

#

so that was failing mysteriously

unreal notch
#

aah yea

#

IO gets spicy when you dont tell it the folder doesnt exist yet

heady iris
#

this seems a lot nicer than having to call out to JS

unreal notch
#

yea, and your solution I think is safe from losing save data by clearing your browser cache

heady iris
#

relatively safe, yeah

#

i think indexedDB is more persistent than localStorage

#

Both can still get wiped if you run low on disk space, though.

#

afaik

unreal notch
#

I'll eventually switch over to that, but at the moment I've moved on to a different issue: selectively applying a pixel perfect shader to only certain layers in my scene
(I actually solved it, been working on this all day, now I'm just applying it in several places)

heady iris
#

Safari also aggressively wipes things after 7 days

patent hound
#

does a layermask actually improve performance overhead of physics.overlapsphere/physics.overlapspherenonalloc or does it just filter the reuslts?

heady iris
silk cedar
#

Hello, can someone help me with the code problem?

patent hound
silk cedar
spring creek
#

Just say your problem

silk cedar
#

Hey, can you also help me with a problem I have in Unity, it's not about codes but about my rigibody character.

unreal notch
spring creek
#

Someone will help if they can

finite thorn
#

hey is cinemachine code beginner question

unreal notch
rigid island
unreal notch
#

theres a whole channel for that

finite thorn
#

kk got it

hybrid turtle
#

Has anyone used PaintIn3D this documentation is actually garbo but if anyone has used Activation field I want to manually be able to enable and disable when users can be paint

Screenshot_2023-10-16_at_4.17.06_PM.png
silk cedar
#

How do you send video?

lean sail
hybrid turtle
#

ok ok yeah the docs are def no good

#

but ill see if there exists a server or smth

lean sail
lean sail
silk cedar
solar estuary
#

Currently my player can infinitely jump higher and higher if you continue to press space bar. I am trying to make it so I can only jump once, but I'm not sure how. Can someone help me? Here is my code:

rigid island
solar estuary
#

thanks so much

heady iris
silk cedar
#

yes

heady iris
#

actually, I dunno exactly what you did. downloading that gives an error

silk cedar
#

ready

#

why doesn't it charge me

hybrid turtle
scarlet kindle
#

Hey I've got an OnCollisionEnter(Collision collision) event firing for collisions on a dice roll, it's working but I noticed that if the dice has already collided but not jumped up, and part of it is already touching the table, then it doesn't consider the last impulse when part of it flops onto it's side a collision. Is there any type of workaround for detecting this last impulse?

solar estuary
# rigid island https://youtu.be/LEUhxe9vUOM

Hey, i followed the tutorial and the jumping worked but he also shows how to make it so the player falls to the ground instead of being stuck on edges. I did this as well but I can't tell if it works because my map starts to rotate if I try to play it

#

my composite collider is also showing me this

rigid island
cosmic rain
scarlet kindle
#

I'm not using it to determine a dice, i'm using it to play a sound effect

cosmic rain
#

Ah

scarlet kindle
#

I think I'm going to try OnCollisionStay and check the impulse force greater than a certain amount

#

it should work, just need to find the right amount

solar estuary
rigid island
solar estuary
#

yeah

#

one more question, do you happen to know how to make it so i can't hold down the walk button and just sit on the side of the platform?

#

right now i can just hold the right arrow and sit on the side of the platform

image.png
rigid island
solar estuary
#

thanks

cosmic rain
scarlet kindle
# cosmic rain Maybe add smaller trigger colliders on the edges and play the sound in OnTrigger...

I ended up doing this

    {
        Debug.Log("collision dice!");
        diceHit.Stop();
        diceHit.volume = 1;
        diceHit.Play();
    }

    void OnCollisionStay(Collision collision)
    {
        // Debug.Log("collision stay dice!");
        var totalImpulse = Mathf.Abs(collision.impulse.x) + Mathf.Abs(collision.impulse.y) + Mathf.Abs(collision.impulse.z);
        var force = totalImpulse/Time.deltaTime;
        Debug.Log("force is " + force);
        if(force > 8) {
            Debug.Log("sitting force: " + force);
            diceHit.Stop();
            diceHit.volume = Mathf.Lerp(0, 1, force/20);
            diceHit.Play();
        }

    }```

This way I get sounds triggered when it collides with the table, and then also when there is appropriate Impulse while its maintaining contact. I normalized the impulse force with the lerp to adjust the volume based on how strong the impulse is. the results are pretty nice, tbh
solar estuary
#

why is this platform at the bottom green when its not the color i chose on the color picker

image.png
rigid island
#

also not code question

solar estuary
#

no its yellow

#

yeah i forgot sorry

rigid island
#

Color here is more of a tint

#

original sprite color must be white

solar estuary
#

oh okay

hybrid turtle
#

Hey ok so I figured my paintIn3D thingy out but now does anyone know a work around to signal the end of a timeline with PlayableDirector

#

playabledirector.time == playabledirector.duration does not work

sullen fern
#

im making a basic 3d action game, but for some reason at low speeds my character overlaps with the wall

#

is there some setting im forgetting?

alpine hearth
#

Hi I'm trying to profile my game on mobile
I don't get that long WaitForJobID, every thread seems to be spinning idle?
And then at the very end it pops two very fast task on worker 3 and 0?

image.png
cosmic rain
alpine hearth
#

Anything specific I could provide to help diagnose the issue?

night harness
#

Just looking for confirmation

Gizmos.matrix default makes the Gizmos origin be set to the scene/root Transform (always 0 in everything)
Gizmos.matrix = transform.WorldToLocalMatrix makes the Gizmos origin be set to the local transform of a Transform
Gizmos.matrix = transform.localToWorldMatrix makes the Gizmos origin be set to the world transform of a Transform

yes?

solar estuary
#

why isn't my game manager script working? when the player touches the blue bar, it's supposed to teleport the player back up to that first yellow platform. When I test it though, I just phase through it.

image.png
spring creek
#

Does it have a trigger collider?

#

How do you tell when the player touches it?

solar estuary
cosmic rain
rigid island
solar estuary
#

heres the game manager script

image.png
#

and heres the script for the blue bar

image.png
rigid island
#

are u sure they're the same size

#

you can also cleanup that Game manager if you just reference the PlayerController directly you can skip the GetComponent

#

put Debug.Log inside the Triigger

solar estuary
rigid island
#

did you check the gizmos

#

the green lines

solar estuary
#

no, I'm just copying the code my instructor provided

rigid island
#

huh

#

code has nothing to do with checking gizmos size

solar estuary
#

i dont see any green lines

rigid island
#

turn Gizmos on in the scene view then

spring creek
# solar estuary '

Show a screenshot of the player. Does it have a collider2d and rigidbody2d?

solar estuary
solar estuary
rigid island
#

?

spring creek
# solar estuary yes

Ok, then that is all set up for registering collisions. It's something else. Maybe what Nav is talking about

solar estuary
#

unless you're talking about this red thing, no

image.png
rigid island
#

can u turn off the sprite for a second

#

that color is like blinding me, i can't tell

solar estuary
#

sorry

rigid island
#

hmm dont see a collider

#

press F to zoom out

solar estuary
rigid island
#

yeah just make a new box collider and see if it fixes it

solar estuary
#

alright

#

the gizmo is finally there but i still go through the bar

image.png
rigid island
solar estuary
#

nope, ill do that now

spring creek
#

Your player is not tagged Player

rigid island
#

oh shit.

solar estuary
#

where

rigid island
#

good catch

solar estuary
#

OHHHHHH

rigid island
#

either way you were still missing a collider

#

so two things wrong xD

solar estuary
#

lol

#

i finally got it to work but now its saying this thing at the bottom

rigid island
#

you have to check Console window for the line number and script

#

chances are missing tag on GameManager too

spring creek
#

@solar estuary GameManger is not GameManager

#

Your find is for GameManager

#

But the object is named GameManger

#

One of the many reasons I hate namebased anything and find haha

rigid island
#

oh wait ur doing GameObject.Find 🤮

#

not even a tag sadok

unreal notch
#

friends dont let friends use GameObject.Find

rigid island
#

GameManager should be a singleton anyway 😛

solar estuary
#

man this crap is confusing

spring creek
#

Did you fix the name of the gameobject?

solar estuary
#

how do i fix it

#

im dumb

spring creek
solar estuary
#

i just rename GameManager to GameObject?

spring creek
#

Missing an "a"

#

Before the second "g"

solar estuary
#

omg

#

theres no way

#

I can't believe my problems were because I forgot an A lmao 😂

prime sinew
#

It happens way more often than you think

#

Which is one of the reasons why you avoid using Find

rigid island
#

working with string is like working with javascript :\

solar estuary
#

how do i use types

#

is that like a setting or something

rigid island
#

eg gameManager = FindObjectOfType<GameManager>();

#

class is a type

#

using your class / type GameManager there is no way you can mispell that

#

your IDE would yell at you / fix it

#

when you did GetComponent<PlayerController>()

#

thats using types

solar estuary
#

oh i thought that was like a search thread

#

what would be an example of string

night harness
#

"string"

rigid island
#

any GameObject.Find method uses string

#

Tags use strings

#

yeah anything with ""

solar estuary
#

ah alright

#

thanks for the useful info

night harness
#

I know I shouldn't ask about asking a question but anyone here have experience in Gizmos, rotating and matrix stuff? Having some troubles figuring it out in my head and would love some advice

solar estuary
rancid kindle
rigid island
slim basalt
#

I am a bit confused. I am trying to have an object point towards a point in space that is 20 units in front of the camera. I am doing this inside Update:

transform.LookAt(playerCamera.forward.normalized * 20);

Based on everything I have read and debugged, it should be correct, but the object keeps going to all sorts of random positions. Video for reference.

I have zero idea what is going on and how to solve this.

zinc parrot
#

If I have a light in HDRP and convert the project to builtin, whats the proper way to convert the lights intensity from HDRP to builtin?

mossy snow
slim basalt
#

I assumed that Vector3s were Vector3s. transform.forward.normalized is a point in space, no?

#

In this case, do I have to do a raycast or something manually rather than just getting the forward?

quaint rock
#

transform.forward is a directinal vector

slim basalt
#

I see, well I guess this works. I had assumed the forward was just a position in space that represents the direction relative to the origin of the object, but that's just so strange.

#

this works

        Ray r = new Ray( origin: playerCamera.position, playerCamera.forward.normalized);
        transform.LookAt(r.GetPoint(20));
ehUPIrkahQ.png
#

Shouldn't they make Direction a separate class so you can't super easily use it with Vector3? It seems so wrong to me

quaint rock
#

like if you wanted a point n units infront of the player you would on something like
transform.position + transform.forward * n

quaint rock
#

you can do math with them along side regular vectors

slim basalt
quaint rock
#

since its more or less a point in space 1 unit infront of the transform, if that transform was (0, 0, 0)

slim basalt
#

I am just not used to properties of the same type having different behaviors depending on where they originate from in the class structure

quaint rock
#

well its not different behaviours

#

like a float could repersent many things since its just a number

#

well a vector is the same

slim basalt
#

I mean, it is. When I print forward, I get a position in space. I would have assumed I can just plop that into LookAt, but the behavior is different from the values I get

quaint rock
#

look at the position it gives you relative to the position of your object

#

also make sure your object is not near the origin

slim basalt
#

Ohhhh, it's a relative position?

quaint rock
#

you will notice the forward will be something like (0, 0, 1) or something if you are looking down the z axis

#

the code i shows worked since you are taking the position adding it to forward that gives you a point 1 unit infront of your character

slim basalt
#

I see

#

So foward is relative to the player. So it's not that it's a "direction", it's that it's a vector3 whose values are relative to the source object

quaint rock
#

you can always multiply that forward to get a point further out before you add it to position

#

yes

slim basalt
#

yeah

#

Okay, that makes more sense, thank you for explaining

quaint rock
#

also why Vector3 has stuff like
Vector3.Up, Vector3.forward

slim basalt
#

yeah I see

quaint rock
#

where up would be (0, 1, 0) since y axis is your up axis

#

but say you wanted something 5 units up, you could just do Vector3.up * 5

#

its the same idea with the transform.forward, but its based on where that transforms z axis is facing

#

also forward is already normalized

#

no need to do it again, also all normalizing does is make the length of the vector 1, so really only useful for directions

#

other reasons for directinal vectors is for getting a direction pointing from 1 postion to the other for example
(posB - PosA).normalized would create a vector that points from A to B that is normalized so you can multiply it to make it any length you want and add it to a position to make it relative to that position

river wharf
#

If I have a line renderer attached to an empty gameobject, can I not move the line by moving the empty gameobject ?

rancid kindle
#

Currently it plays particle when it's on 10hp and 0hp

river wharf
lean sail
# rancid kindle Currently it plays particle when it's on 10hp and 0hp

from just quickly looking at the reply chain: i assume you dont want it to play on 0. You'll want to use else if then. Your code right now checks if health is less than or equal to 0, and then also checks if its less than or equal to 10. You dont want that 2nd check to happen if the first is true, so use else if
also it looks like your IDE isnt configured because theres very little highlighting on anything

rancid kindle
rancid kindle
#

Like I want to set a range where the blood particle will play if the hp is not in that range it won't play it

#

So like for now I've used 1 if statement as a starting point of the range and another if for the end range of the blood particle

patent hound
#

the idea with an else if is you can check an if statement only if a previous if statement isn't true.

rancid kindle
#

I see

lean sail
#

that website lets you run code if you wanna experiment around with what it does

rancid kindle
#

So like I can use if condition to keep the actual hp where the blood particle will play and else if for where the blood particle won't play, that about right?

patent hound
#

hey i've got a navmeshagent that is...wandering around 0.1 per frame(different every frame) and i can't seem to find anything that would be changing its destination, but i put in a public debub vector3 and can confirm its destination is randomly being set

#

it's not consistent it seems to be completely random and i can't find out why he's doing that, and because it's a navmeshagent not a script i can't add a debug.log to do a stacktrace

#

is there any way i could do a stacktrace to figure out what is setting the navmeshagent.destination?

#

i just paused the editor during runtime and disabled every component except the animator(so that it doesn't ragdoll), as well as components from about 5 other objects so i don't know where to look

lean sail
# patent hound i just paused the editor during runtime and disabled every component except the ...

idk much about navmeshagent so assuming it isnt some built in moving feature
If removing everything from it doesnt work, then its likely something else referencing it. id still check that the animator isnt moving it around but you could try right clicking the object/components and press Find references in Scene
If you still cant find it, try making a new one in a separate scene and see if it has the same issue

patent hound
#

well it seems like somehow the animator is setting the destination of my navmeshagent object but i don't know either why or how...

#

ok i figured out at least that it was just the entire object being moved, and the navmeshagent was just updating its destination to the new position of the object

#

but now i have no clue why the animator is moving the player around randomly, it's sliding in random inconsistent directions and speeds, and bouncing off walls even when the speed is set to 0

cosmic rain
#

An animation is moving the object? Sound like root motion.

undone pasture
#

Heya I'm having a bit of trouble comprehending whether if im getting a reference or a value on a class whose purpose is to store values:
I have the class seen in the first picture, which i use as seen on the second picture, to then apply on my playercharacter in the third picture.
This stat system has two goals: our game has multiple characters with each having differing stats, so by implementing flyweights we can make that easier, but you can also throughout the game upgrade those player's stats, which you do via the function in the first picture.
So, in the player script, I create a new variable of the type of my struct, then i set the struct to one of my flyweights, then other code references that "stats" variable and runs the function defined in the class itself to change the values.

The problem is: When I do this, it seems the flyweight itself, "dendra" is whats being modified, and not the variable "stats" in player, meaning that if i set stats to null, then re-set it to the flyweight, whatever modifications i made will still be there, with dendra being static and all, so I guess that when I'm modifying "stats" im actually just modifying the flyweight??? How can I not do this? should I make PlayerStats a struct instead?

image.png image.png image.png
cosmic rain
undone pasture
#

nope, i wanna copy the values of dendra to the variable "stats", then modify those values, not dendra itself

cosmic rain
#

Since class is a reference type, you're passing everything by reference.

#

Structs are value types, and are passed by value(copied).

cosmic rain
undone pasture
rancid kindle
#

So I want to play a sound when the player is walking, for dashing I just used playoneshot whenever the shift button was pressed but that won't work for walking as the W key will be held down so the sound will only be played once.. is there any way to play the sound so that it will play when the W key is held down and it stops playing when the W key is released

undone pasture
#

thank you so much, I'll probably make it a struct since its less work than making a constructor lol

west lotus
# rancid kindle So I want to play a sound when the player is walking, for dashing I just used pl...

There are multiple ways to do this. Have a walk animation? Set up animation events on the proper foot placements and play the sound from there. Alternatively start a coroutine that loops and plays the sound every X amount of time and stop it when the W key is released. Or you can simply check the distance the player has moved and and play a sound if it’s over a certain step threshold(this is what we do for our fps)

night harness
#

So I have this 3d array of positions that I'm drawing and centering based off the middle of the array size and the transform.position. But I'm struggling to figure out how to set up the rotation in a way where they all move anchored off the transform.rotation as a whole, rather than them each replicating it

relevant code:

    void Update()
    {
        arrayCenterOffset = new Vector3((float)arraySize.x / 2, (float)arraySize.y / 2, (float)arraySize.z / 2);
        tileHalfExtents = transform.localScale / 2;
        arrayCenterPosition = Vector3.zero;
        arrayCenterPosition += transform.position;
        arrayCenterPosition -= arrayCenterOffset;
        arrayCenterPosition += tileHalfExtents;
        VisualiseTileScanning();
    }

    public void VisualiseTileScanning()
    {

        array = new Vector3[arraySize.x, arraySize.y, arraySize.z];
        Vector3 indexPosition = Vector3.zero;

        for (int indexY = 0; indexY < array.GetLength(1); indexY++)
            for (int indexX = 0; indexX < array.GetLength(0); indexX++)
                for (int indexZ = 0; indexZ < array.GetLength(2); indexZ++)
                {
                    indexPosition = new Vector3(indexX, indexY, indexZ);
                    Vector3 cubePosition = indexPosition + arrayCenterPosition;

                    D.raw(new Shape.Box(cubePosition, new Vector3(0.5f, 0.5f, 0.5f), transform.rotation, true));
                }
    }

wireframe gif is what i have, solid lit gif is what im looking for

unityhelp.gif unityhelpgif2.gif
patent hound
#

for those curious i FINALLY figured out my wandering navmeshagent problem that was happening with no script, my project settings hadn't saved and the ragdoll bone colliders were colliding with the capsule collider of the navmeshagent they are inside and throwing the character all over the place

rancid kindle
patent hound
#

for prototyping you could do something like
//footstep every one second
float footStepInterval = 1;
float footStepTimer = 0;
public void update(){
footStepTimer += time.deltatime;
if(running){
//double footstep speed when running
footStepTimer += time.deltatime;
}
//check if it's been more than the footstep interval
if(footStepTimer >= footStepInterval){
//play the footstep sound
playfootstepsound();
footStepTimer = 0;
}
}

west lotus
spring creek
rancid kindle
rancid kindle
patent hound
#

I think the documentation says yes, but if i have an object that is a trigger moving, said object hits a collider, is OnTriggerEnter called on the trigger?

#

currently i have the bullets in my games have colliders and the onCollisionEnter is working well for them but they are moving so fast they are applying unnneccessarily high forces to objects with colliders, i'm wondering if i can toggle isTrigger on them and make it work that way

fervent furnace
#

on both objects

patent hound
#

oh good, the documentation seemed to say that but the wording isn't 100% clear if it would call it on both the collider and the trigger, or just on the collider

#

"OnTriggerEnter happens on the FixedUpdate function when two GameObjects collide. The Colliders involved are not always at the point of initial contact." could be a little more clear

night harness
patent hound
fervent furnace
#

is the collision detection continuous (i forgot what the option is called)?

patent hound
#

not sure what setting you're asking about but the code was working flawlessly with oncollisionenter, i changed the collider to a trigger, added an "onTriggerEnter" and put a debug.log in it and the debug.log is not being called nor is the oncollisionenter

#

also just in case you're wondering the projectile does have a rigidbody

fervent furnace
#

i have no idea, maybe share your code, so that others can help

patent hound
#

private void OnTriggerEnter(Collider collision)
{
Debug.Log("bullet entered trigger");
//Ignore collisions with other projectiles.
if (collision.gameObject.GetComponent<Projectile>() != null)
return;
if(collision.transform.tag == "EnemyHitbox")
{
Enemy damageTarget = FindTargetEnemy(collision);
damageTarget.healthManager.ApplyDamage(5f);
Debug.Log("bullet hit an enemy");
}
}

#

the bullet entered trigger debug message is not appearing in the console unless the bullet is fired into an actual trigger

#

and i just tried resetting the physics settings to default in my project and it did not fix the issue

night harness
#

are your colliders tagged correctly?

patent hound
#

well it should display the debug.log regardless, also the code works perfectly i change "ontriggerenter(collider collision)" to "onCollisionEnter(Collision collision)"

somber nacelle
patent hound
#

and set the isTrigger flag to false on the projectile of course so that onCollissionEnter is called

somber nacelle
#

you do know that OnTriggerEnter requires at least one of the two objects to be a trigger, right? that's what that isTrigger property is for

patent hound
#

yes, the original problem is that the projectile applies too much force to the objects it hits, so i wanted to change the collider to a trigger and convert oncollisionenter to ontriggerenter

#

but with the projectile as a trigger ontriggerenter is never called unless it contacts another trigger

somber nacelle
#

did you not just say that isTrigger is false on the projectile?

#

either way though, go through the link i sent. it takes you through everything you need to check

patent hound
#

the oncollisionenter function wouldn't work with istrigger on obviously

mellow sigil
#

If OnTriggerEnter gets called when the bullet hits a trigger then the bullet is not set to be a trigger because two triggers don't react to each other

#

so the bullet doesn't have trigger set

somber nacelle
#

because two triggers don't react to each other
that's inaccurate

patent hound
#

i assure you it has the isTrigger flag set

mellow sigil
#

If both GameObjects have Collider.isTrigger enabled, no collision happens.

somber nacelle
patent hound
somber nacelle
#

a static trigger will not send a trigger message to another static trigger, but non-static triggers can react to static and other non static triggers

mellow sigil
#

It literally says that two triggers don't send an OnTriggerEnter message on the OnTriggerEnter documentation

somber nacelle
somber nacelle
night harness
patent hound
#

and sometimes it collides with only a collider behind something else

mellow sigil
patent hound
#

so it seems like it's extremely unreliable not nonfunctional

night harness
patent hound
mellow sigil
somber nacelle
night harness
#

if your bullet is very fast the default setting might not be checking fast enough

somber nacelle
#

you can also literally test it

patent hound
#

is there a problem with this?

#

i thought continuous dynamic was specifically for fast moving objects

somber nacelle
#

can you show the full inspector for both objects like i suggested before

patent hound
#

full inspector for the bullet

somber nacelle
#

and OnTriggerEnter is on the Projectile script?

patent hound
#

currently the entire script is commented out except:

#

private void OnTriggerEnter(Collider collision)
{
Debug.Log("bullet entered trigger");
Debug.Log(collision.gameObject.name);
}

somber nacelle
#

so that's a yes?

patent hound
#

yes

#

here is a cube i'm using as a test to remove all the possible problems between the box rather than the actual use case

#

it collides with the cube maybe 1 out of every 200 times

somber nacelle
#

let me guess, it's moving at an incredibly ridiculous speed?

patent hound
#

it didn't seem like it, because it never had problems with it jumping through objects when it was a collider

#

the impulse applied to them is currently set at 400

#

i tuned the impulse down to 100 and it still only detected 1/120

somber nacelle
patent hound
#

then how would it consistenly be detecting the collisions every time with colliders set to on

#

i assumed the physics engine was checking if the object had moved through things between updates since it always worked with colliders on

somber nacelle
#

well it's a trigger so it doesn't need to check if it collides with anything to stop its movement

patent hound
#

is there a way i can make it check for collision between fixed updates? i assumed that's what the interpolate option in the rigidbody was for, seems pretty silly that it just wouldn't check when it's a trigger but does if it's a collider

somber nacelle
#

is there a specific reason this is even relying on physics messages? with it moving so fast you should be using raycasts each frame/fixed update to check if it will hit something in its path which will be more accurate at higher speeds than physics messages will be

patent hound
#

well because the physics system had the collision detection handled for me, made things easier

#

but it sounds like for some wacky reason they don't do part of that if it's a collider

somber nacelle
#

You're just moving it at ridiculous speeds and expecting it to be consistent

patent hound
#

and it was, to my surprise, so i left it

#

i expected the movement speed to cause huge problems when i first coded it as a collider, but it never did cause a single problem other than applying too much force to the objects it hits for my liking

somber nacelle
#

it happened to be working likely due to Continuous Collision Detection. but triggers do not collide

patent hound
#

well suppose i can always just do a new ray between the current position and the current position + (velocity * time.fixedDeltaTime) in the FixedUpdate() right?

somber nacelle
#

yeah that should do it

patent hound
#

just odd that they allow you to set the collision detection to a higher setting with a trigger, but i'm assuming its because the collider and rigidbody are different components. Would have liked a warning in the documentation about that lol

somber nacelle
#

a rigidbody can have multiple colliders

patent hound
#

i suppose so

sharp sable
#

is there a way to force GC to collect a bunch of garbage at a specific point in time ?
I have a routine that's supposed to take place behind a loading screen (world generation), and once it's completed I want to collect all the garbage it generates while the loading screen is still there, so it doesn't affect performance at play time
rn, it collects all that garbage with significant delay (around 30 seconds)

patent hound
#

so i made some code for testing, and it's still missing objects and hitting things behind them, the enemy hitbox only got hit 1/150 shots taken at it

#

Ray ray = new Ray(transform.position, transform.position + (gameObject.GetComponent<Rigidbody>().velocity * Time.fixedDeltaTime));
RaycastHit hitInfo = new RaycastHit();
float distance = Vector3.Distance(transform.position, transform.position + (gameObject.GetComponent<Rigidbody>().velocity * Time.fixedDeltaTime));
int layerMask =~ LayerMask.GetMask("Enemies");
if (Physics.Raycast(ray, out hitInfo, distance, layerMask))
{
if (hitInfo.transform.gameObject != null)
{
Debug.Log(hitInfo.transform.gameObject.name);
Destroy(gameObject);
}
}

hoary monolith
#

Hello, I would like to ask what method would be good to use when I want to save a PlayerProgressionData.json inside Unity Cloud or is that even possible?

cosmic rain
hoary monolith
#

oh i was talking about unity cloud save

#

wanted to use that for storage for player data

cosmic rain
cosmic rain
cosmic rain
patent hound
#

that's ok at this point i've given up at least for the time being, i've spent nearly 3 hours on it and it just doesn't want to work, i'm just going to lower the projectile velocity and hope it works ok as a collider because it seems like an engine limitation

#

i switched to using a ray between the last position and current position every fixed update and it still would only return the expected result one out of every 100-200 times

#

if they had continuous collision detection for triggers this would be a complete nonissue but unfortunately there isn't a way to do that

cosmic rain
#

An object is moved discreetly every fixed update, so I'm not sure what you expect to hit in between.🤔

patent hound
#

i wanted to switch a collider to a trigger because it was applying too much force to objects it was hitting at the current speeds, then apply the force discretely using the rigidbody and adding velocity, but ontriggerenter was only working 1/250 times(or less) in my testing

#

so i switched to raycasting between the last position and the current position every fixed update, no dice, still was not properly detecting colliders

#

so i'm just back to using colliders since CCD works 100% of the time regardless of the projectile speed but only on colliders

cosmic rain
#

Ah, indeed, continuous collision detection might not work with triggers. Your need to implement it manually with a raycast.

cosmic rain
patent hound
#

with raycasting on a fixed update i changed my sample size to 1000 and counted 2 times of it working properly

night harness
#

Does it need to be in FixedUpdate?

patent hound
#

it hits the object behind the target sometimes, and sometimes it doesn't even hit that

cosmic rain
tawny elkBOT
#
Posting code

📃 Large Code Blocks
Large code blocks should be posted as links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/
https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code
Surround code with three backquotes. Not quotation marks.
To get C# formatting the first line should only contain cs or csharp.
Add a comment with a line number if there is an error message.
```cs
// Your code here
```
Do not share screenshots of code unless requested.

cosmic rain
#

If your raycast doesn't hit something in front of it, then there must be an issue with the code.

#

It could be a bit more complicated if the object you're trying to hit is also moving at high speeds.

#

Might not actually be where you expect it to be.

patent hound
#

i've already deleted all the code i was using, after 3 hours this is an inefficient use of my time, not to mention i would have to restructure every one of the 28 weapon prefabs and muzzle attachment prefabs in my game to prevent them from being hit by the ray and that could end up being extra hours of my time

#

i'm just chalking it up to a silly unity engine limitation and moving on

night harness
#

It's less a limitation and more of your using the wrong tool for the job afaik

With projectiles that fast it's going to be a lot less of a headache in general to detatch the actual logic of your guns from the visuals

cosmic rain
patent hound
#

I was able to get the expected behaviour within minutes during the prototyping stage using colliders, for both short and long distance shooting

#

but since the continuous collision detection code doesn't work for triggers i would have to rewrite far too much of it this late into development for it to be worth it

night harness
#

and that's perfectly ok! more than reasonable decision

patent hound
#

plus bullet drop and drag works suprisingly well with colliders built into the engine, which i would have to go back and incorporate into what are now fully fleshed out systems

night harness
#

all we're saying is that your running up against Unity's walls because conceptually your going about it in a less than ideal way for what your trying to do (thats not a slight at you just sometimes you have more wiggle room with these type of things than others)

#

in terms of a mechanic like hitscan weapons, most games afaik don't even use a projectile period. their too fast to deal with their collision detections and too fast to see from a visual standpoint

sharp sable
# cosmic rain Should be possible. Check GarbageCollector API.

looks like it isn't
I tried using GC.Collect() straight away, it did nothing
and researching this further only showed that calling it manually can have some adverse side-effect and doesn't provide any guarantees that garbage will actually be collected

#

I'll have to check a built version too, I have a suspicion this delay may be caused by the editor

cosmic rain
#

I was referring to the GarbageCollector API provided by unity.

sharp sable
#

oh, Unity's GC api doesn't have anything like that in the documentation

cosmic rain
#

It has though.

#

GarbageCollector.CollectIncremental()

sharp sable
#

yep, it looked irrelevant to me, something about spreading the garbage collection across multiple frames

cosmic rain
#

It literally says "runs the incremental garbage collector for up to the specified time".

sharp sable
#

yeah, it does nothing too

cosmic rain
#

Do you have the incremental GC enabled?

sharp sable
#

I really need to see that's related to the editor play mode

cosmic rain
#

Also, you need to call this function multiple times, since it might not finish in the time you provide it.

hoary monolith
#

Are there any good tutorials for Unity Cloud Save and its different functions? it's pretty hard for me to learn it by documentation alone so having a video to guide would be pretty nice

cosmic rain
hoary monolith
#

so far on my searches found some that touches some of the functions but not really what i needed.

cosmic rain
#

Well it is pretty niche API, so don't expect to find anything super detailed.
What exactly do you need covered and what tutorials did you have a look at?

sharp sable
hoary monolith
cosmic rain
cosmic rain
patent hound
# 
        private void FixedUpdate()
        {
            lastPosition = thisPosition;
            thisPosition = transform.position;
            Ray ray = new Ray(lastPosition, lastPosition - thisPosition);
            RaycastHit hitInfo = new RaycastHit();
            if (Physics.Raycast(ray, out hitInfo, Vector3.Distance(lastPosition, thisPosition), raycastLayerMask))
            {
                if (hitInfo.transform.gameObject != null)
                {
                    Debug.Log(hitInfo.transform.gameObject.name);
                    if (hitInfo.transform.tag == "EnemyHitbox")
                    {
                        Enemy damageTarget = FindTargetEnemy(hitInfo.transform.gameObject);
                        damageTarget.healthManager.ApplyDamage(5f);
                        Debug.Log("bullet hit an enemy");
                    }
                    Destroy(gameObject);
                }
            }
        }
#

i pulled the code from the github fork, changed some things slightly and the best i can get out of it is about a 75% success rate, it goes through the target and hits objects behind it the other times

cosmic rain
sharp sable
cosmic rain
sharp sable
#

oh, makes sense

hoary monolith
cosmic rain
cosmic rain
#

Json is a string, so the first one I guess.

patent hound
cosmic rain
patent hound
#

either way that does bring up a serious flaw with this system

hoary monolith
#

oh and also I wanted to know if there is a way to actually save directly into Unity Cloud Save without having to create a file in the system, so the players can't modify their own save file.

cosmic rain
vocal crest
#

so I'm using navmesh plus, and for some reason it's taking my textmesh pro as obstacles for some reason? Also the navmesh doesn't cover the entire "walkable" sprite (but that may be normal)

image.png
patent hound
#

i've now tried it without the object moving and i'm still regularly getting results of less than 50% success rate

cosmic rain
patent hound
#

but that also brings out a serious problem with this system because if the enemy is moving toward the player(a pretty common occurance) they can move forward through the raycast area right?

#

like if they're in the raycast area and that frame they move forward a few units they'll get missed by the frame

cosmic rain
#

Yes. That's why the issue is not as simple as you make it sound. There are many factors involved. With colliders, physics takes care of all of it.

#

But... Is it actually true? Wasn't continuous collision detection available with triggers as well?

#

It's a property of the rb, so I'm not sure trigger state would affect it🤔

patent hound
#

so really my only options are a) go back and change the entire weapon system to work on a raycast rather than projectile which would also involve rewriting A LOT of code for spread, etc. or b) deal with the bullets either being too slow or applying ridiculous forces to all physics objects they hit

patent hound
cosmic rain
cosmic rain
patent hound
#

nobody is posting on it or requesting it so i guess they never implemented it

#

i just was so confused that it allows you to turn on continuous collision and interpolation on a rigidbody then have it ignored by a trigger flag

#

which is why i said i'm chalking it up to a unity limitation

somber nacelle
#

continuous collision detection is meant to determine where the rigidbody would collide. since triggers do not collide it makes sense for it to not really help with fast objects not sending trigger messages to objects they pass entirely through in a single fixed update

#

not sure how you mean that interpolation doesn't work for it. physics messages like OnTriggerEnter are only sent on FixedUpdates when physics actually updates. interpolation doesn't incrementally update physics every frame, it predicts where the transform should be and puts it there, but physics is still not updating until the next physics frame

#

at least that's my understanding of how it works

cosmic rain
#

And yes, interpolation has nothing to do with collisions

latent latch
#

So what's the problem here? It's not using rb system so having it go through stuff is pretty standard.

#

With that being said, I should change my projectile system to rb because I'm starting to encounter similar problems ;)

cosmic rain
#

No. The problem is that apparently continuous collision detection doesn't affect triggers.
Although what Boxfriend mentioned makes sense, it's not very intuitive in the editor and there's no mention of that anywhere in the docs.

patent hound
#

so interesting question, it's now 3am and my brain is fried, is there an easy way to do a raycast using my current spread system so the dummy projectile will match the spread of the raycast?

# 
//Spawn as many projectiles as we need.
            for (var i = 0; i < shotCount; i++)
            {
                //Determine a random spread value using all of our multipliers.
                Vector3 spreadValue = Random.insideUnitSphere * (spread * spreadMultiplier);
                //Remove the forward spread component, since locally this would go inside the object we're shooting!
                spreadValue.z = 0;
                //Convert to world space.
                spreadValue = playerCamera.TransformDirection(spreadValue);

                //Spawn projectile from the projectile spawn point.
                GameObject projectile = Instantiate(prefabProjectile, playerCamera.position, Quaternion.Euler(playerCamera.eulerAngles + spreadValue));
                //Add velocity to the projectile.
                projectile.GetComponent<Rigidbody>().velocity = projectile.transform.forward * projectileImpulse;
            }
somber nacelle
#

well you've got the position and direction right there

night harness
#

question to boxfriend and dlich since I might be wrong, Is there any reason they would want to use fixedupdate here for the raycasting and not just update?

patent hound
#

i was just looking for consistency and update with time.deltatime was inconsistent so i tried switching to fixed update 😛

#

once you hit 3 hours into debugging a problem you start trying things that shouldn't make a difference anyway

cosmic rain
patent hound
#

ah, i guess i did have a good reason, i just didn't know it

latent latch
patent hound
#

it seems to have literally no effect on anything that doesn't generate a collision event

latent latch
#

Oh, hum

#

Guess I'm writing my own interpolation

patent hound
#

so OnTriggerEnter events will be inconsistent at best but OnCollisionEnter works 100% of the time

somber nacelle
latent latch
#

I do like having the control of when to check and cast without RB, so it's kinda preferable to use without trigger events

cosmic rain
#

Interpolation and continuous collision are 2 separate systems.

somber nacelle
#

yes that too, it's important to understand that they are not related

cosmic rain
#

Interpolation is to tackle jitter due to fixed update not matching with regular update. It's purely visual thing.

night harness
patent hound
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that was test code attached to the bullet

cosmic rain
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Continues collision detection is the opposite: it's for detecting collision between fixed frames(because an object is simply teleported between them).

night harness
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These bullets are like, faster than you can see right? like a traditional gun out of something like cs:go or cod or etc.?

patent hound
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you can see them for a few frames

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the projectiles in my prefabs get an impulse of between 200 and 400 depending on the weapon

night harness
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Yeah but for gameplay purposes that speed seems somewhat unlikely to matter, no?

latent latch
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The continuous collision does sound* like some method of interpolating though, because it's guessing that there's a collider ahead and does some checking before hand. Probably does some similar methods to check behind itself I'd assume.

patent hound
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they handled the appearance, lighting, and collision

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i'm going to have to convert them to just appearance and lighting(as well as the whizzing noise) without the collision and put the collision into a raycast of some sort

night harness
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yeeee

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just a easy raycast from the tip of the gun should be very easy to get up and running for you

cosmic rain
latent latch
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Yeah true

cosmic rain
patent hound
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sanity check, if i've been using Quaternion.Euler(playerCamera.eulerAngles + spreadValue) as the rotation for the gameObject, playerCamera.eulerAngles + spreadValue will return the correct direction value for a raycast?

cosmic rain
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It would return a rotation, not a direction.

night harness
patent hound
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oh it calls it "direction" but what it really means is just an endpoint to draw a line through

cosmic rain
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Then definitely no. An endpoint implies a point in space. Rotation is not a point in space.

patent hound
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i was confused on how they were storing a "direction" as a Vector3

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rather than a quaternion

cosmic rain
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Direction as Vector3 totally makes sense.

night harness
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most of the time people just use raycasts their dealing with two world space positions so giving your second position as the direction will be the correct direction relatively

cosmic rain
#

You can draw one on paper easily.

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A 2d direction.

patent hound
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I'm just being a 3am smoothbrain and failing to convert a worldspace quaternion into a direction

night harness
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ive spent the last two days dealing with transforms and rotations homie dw

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they suck

cosmic rain
patent hound
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well when you instantiate a gameobject it has to be instantiated using a quaternion rotation in worldspace correct?

night harness
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you can use Quaternion.identity which is just 0 in everything

latent latch
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Matrices/Transforms are what you're probably thinking. Quaternions are just a rotation you apply to them I believe.

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Such that you can create a rotation, but the space does not apply to it.

patent hound
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Vector3 direction = (Quaternion.Euler(playerCamera.eulerAngles + spreadValue) * Vector3.forward).normalized;

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does this make any sense?

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if not i'm going to sleep

latent latch
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Try it out ;p

night harness
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i think you could just do something like
float forwardDistanceFromCamera;
Vector3 spreadPosition = new Vector3(playerCam.position.x + spread, playerCam.position.y + spread, playerCam.position.z + forwardDistanceFromCamera)

Raycast(playerCam.position, spreadPosition)