archived-code-general

[latent latch]

usually you go with observer pattern for that

so updating a source updates everything that relies on it

[merry stream]

can you explain more? do I do that using events?

that's what I do currently for that type of situation

[latent latch]

yeah, pretty much using events. Update damage, and everything that's subscribed to that property should recalculate and apply it to that ability.

WoW had snapshotting for the longest, and there were cases where you pop all your ability increases (that lasted for like 5 seconds) and people found ways to keep lingering effects ongoing forever.

PoE had snapshotting long ago, specifically used for summoning

[wicked scroll]

It still does but only for some things, because that gameplay is fun (but not something they wanted everyone to have to deal with always)

[little meadow]

yep, yep, it's a common thing - first you use snapshotting, then you try to get away from it 😄

[wicked scroll]

whynotboth

[merry stream]

so i could have a "mutliplier" on each damage effect that would take a percentage of the player damage

so if I want an ability to do 90% base damage i could set it to 90

[latent latch]

What I've done is pick out a few modifiers, flat, percentage, and additional percentage. All abilities have their own internal modifiers, but when you apply other sources you'd just append to that ability's modifiers but keep track of them in a list

then force a recalc of that ability specifically to cache

[merry stream]

so loop through each list and apply it in whatever order, ie inc% first then more%. Do you think these "internal modifiers" should be on the ability itself or the DamageEffect

since not every ability would even do damage or anything related to increased percentages

[latent latch]

flat -> percentage -> additional percentage

[merry stream]

yes

[latent latch]

if an ability shouldnt do damage then don't flag it as having damage, so it wont subscribe to damage

[merry stream]

so have these events subscribe on the ability SO itself?

then if it's a damaging ability, it passes that damage to the DamageEffect?

[latent latch]

right, each ability will subscribe to your modifier handler

[merry stream]

so my effects should be Valueless

makes sense, I think you said that earlier

[latent latch]

yeah, craft it internally, but have tags on it still to tell it what extra modifiers (from your handler) it can subscribe to

[merry stream]

enum as the tags?

[latent latch]

enum flags

[merry stream]

what is that?

never used that

[latent latch]

it's quick enum comparison

for when you have tons of flags

better known as bitwise enum (probably have used them for layer masks)

[heady iris]

a "flags" enum has values of 1, 2, 4, 8, 16, ...

[merry stream]

so I can use logical operations on them?

[heady iris]

you can turn on or off 32 different bits

[latent latch]

https://www.alanzucconi.com/2015/07/26/enum-flags-and-bitwise-operators/

good read

[heady iris]

this is very performant when compared to, say, a list of IDs

is there a way to check if I'm leaking things from UnityEngine.Pool object pool?

[latent latch]

good for adding those fluff tags like FIRE damage increases. Grouping modifiers by these fluff tags would require some more setup, such that you aren't just comparing by stat tags, but an additional fluff tag comparison operation for all modifier objects (for that specific stat)

[heady iris]

just seeing the number of objects that have been allocated would be sufficient

if the number goes up forever, i'm forgetting to return something

[lean sail]

https://docs.unity3d.com/ScriptReference/Pool.ObjectPool_1.CountAll.html should be able to use this

[heady iris]

Oh

I did not read the freaking manual!

Thanks!

[latent latch]

The ability itself only really needs a static value for stuff like damage, as I don't see much of a reason to add %modifiers there, but that's up to how you want to do it. PoE does do some extra internal modifiers depending on abilities, but those usually have some requirements to it (close range bonus).

[heady iris]

ah, i just realized my problem

GenericPool doesn't actually derive ObjectPool. It has an internal ObjectPool<T> in it

i'm going to copy-paste this thing and expose the object pool

[lean sail]

do you still have to pass in a create function? if so you could have a counter that increments in there

[heady iris]

nah, GenericPool just uses () => new T() as the create function

but all I need to do is make CoolerGenericPool that exposes what I need

[quaint rock]

any reason to not just define the create yourself in ObjectPool<T>

[heady iris]

not really

and I should probably actually do that

[quaint rock]

assume it was designed for Go's but well it does not care how you create things and lets you provide the function for that

[dense estuary]

I need to make functionality for a radar in unity, what are some ways I can get references to objects within a chosen range of the player? I was thinking of something like getting a reference to all objects with a certain layer in the scene, then check if they are in a within a certain distance from the player (by using distance formula or sumn), then transfer that information to a 2D plane for displaying on a map.

I feel one issue with that idea is I would constantly have references to everything in the specified layer

Which may cause performance issues

[leaden ice]

I need to make functionality for a radar in unity, what are some ways I can get references to objects within a chosen range of the player?
Physics.OverlapSphere

[dense estuary]

Oh, that might work, but I need a way to not account for the y axis.

[leaden ice]

https://docs.unity3d.com/ScriptReference/Physics.SphereCastNonAlloc.html

or https://docs.unity3d.com/ScriptReference/Physics.OverlapCapsuleNonAlloc.html

OverlapCapsule is simpler actually

basically you just do a really tall capsule with the chosen radius

tall enough to cover all possible y positions

[dense estuary]

Oh, well, that sounds perfect.

Thank you :D

[ornate perch]

I have an odd coding / unity question. Is there any way for me to hold a list of prefabs in a scriptable object? I continue to get Type Mismatch in the field instead of the actual prefab itself

[leaden ice]

Yes a regular List will work

List<WhateverType>

[ripe mountain]

Hey all im following a brackeys tutorial and ive gotten to a part where he explains that we want our character to look the way we are travelling but mine seems to be walking sideways lol.

[leaden ice]

as long as WhateverType is a script you have on all the prefabs, or is GameObject itself.

[ornate perch]

Sure, i guess ill have to try a list itself instead of an array

[leaden ice]

which side of the thing did you put your eyes on?

[leaden ice]

List or array will work

either one

[ornate perch]

it still gave Type mismatch hm

[ripe mountain]

i had just stuck em on on facing the z axis

[cosmic rain]

Share the code🤷‍♂️

[leaden ice]

Show screenshots and show the code

[leaden ice]

show code

[ornate perch]

its nothing special lol. I just have a test array for now, and my prefab is a game object with the script CapturePoint on it

[leaden ice]

show the full script

[ripe mountain]

yup sure

[leaden ice]

your Atan2 call is wrong

it's y, x. Double check that against brackeys

[ornate perch]

sure but there isn't anything in here that should cause something like that

[cosmic rain]

The whole script means including the usings

[leaden ice]

This might

how about capturePoints = FindObjectsOfType<CapturePoint>();

[ornate perch]

there aren't any usings beyond the normal ones

[ornate perch]

i can try but that isn't being called in the editor

[leaden ice]

how are you assigning the array or list data?

if not that

[ornate perch]

right now im just trying to drag the prefaps into the list

in editor

[leaden ice]

and when you drag it, it immediately says type mismatch?

[ornate perch]

yes

[leaden ice]

try restarting Unity

[leaden ice]

Also just to make sure - CapturePoint is a MonoBehaviour class?

[ripe mountain]

His actually says X,Z but i was playing around with it too see if thats whats wrong (x,z also doesnt work)

[leaden ice]

z, x would be correct

[ornate perch]

at its base its a monobehavior. Its CapturePoint : Objective -> Objective : MonoB

[dense estuary]

I have an issue where OverlapCapsuleNonAlloc makes me need to select a single layer via the index int value, but I might need multiple layers.

[leaden ice]

it doesn't make you select a layer index

that's a layer mask parameter

you give it a LayerMask

public LayerMask myMask;```

[ripe mountain]

He goes right and left fine now but he looks backwards when going forwards and forwards when going backwards

[leaden ice]

LayerMask converts implicitly to int
Trust me, pass a layermask in

[ornate perch]

Restart sadly didnt change anything

[leaden ice]

it returns an int

(the number of colliders it found)

not a bool

you can't do if (int)

only if(bool)

[dense estuary]

oh, sorry.

[dense estuary]

also, unity is saying there is no reference to the object in the Log method. Here is my code currently: ```cs
private void Update()
{
Physics.OverlapCapsuleNonAlloc(transform.position - scannerVertical, transform.position + scannerVertical, scannerRange, results, layerMask);

Debug.Log(results.Length);

}```

oh wait, its because the results variable isnt being assigned isnt it, its just kinda there because I have the overlap logic, but it isnt doing anything.

Would it be better for me to use the normal OverlapCapsule instead?

[cosmic rain]

Take a screenshot of the CapturePoint prefab.

Just to make sure, you're not dragging in objects from the scene hierarchy, do you?

[thick terrace]

i think you're just using the nonalloc version wrong? results.Length doesn't give you the number of results, it gives you the size of your results buffer, so if you don't check the return value you don't know how many items there are in it

[ornate perch]

i think i figured it out. I didnt realize you couldn't assign stuff in a scene.

it works if i use the prefab from my project

[cosmic rain]

Yes, things outside of the scene can't reference things inside of the scene, as they don't exist(outside of the scene)

[ornate perch]

which is unfortunate, beacuse i want the versions of the prefabs in the scene

yeah so i dont think there is an answer i haven't already solved

will just need to write in a new thing in the level to have a scene name to load when its selected

[dense estuary]

What is the perk of using NonAlloc instead of the other one?

[somber nacelle]

the fact that it is not allocating

[dense estuary]

If I need to access the positions of objects in a overlap capsule, would it be better to use the normal one?

[somber nacelle]

why? the non alloc method provides that information too

[latent latch]

always non-alloc :)

[dense estuary]

How would I use the nonalloc method similar to how I'm doing this? cs private void Update() { Collider[] scanned = Physics.OverlapCapsule(player.transform.position - scannerVertical, transform.position + scannerVertical, scannerRange, layerMask); foreach (Collider i in scanned) { // Create icon on scanner screen // Move icon to current position // Delete icons that are nolonger there. } }

[somber nacelle]

#archived-code-general message

[heady iris]

you pre-allocate an array to store results in

the method tells you how many items it actually found

it's not reassigning the array (that's impossible)

[dense estuary]

I'm sorry, I'm a little lost. Please explain.

[heady iris]

private Collider[] overlapResults;

void Awake() {
  overlapResults = new Collider[16];
}

void Update() {
  int hits = Physics.OverlapCapsuleNonAlloc(player.transform.position - scannerVertical, transform.position + scannerVertical, scannerRange, overlapResults, layerMask);

  for (int i = 0; i < hits; ++i) {
    Debug.Log($"Hit #{i}: {hits[i]}");
  }
}

https://docs.unity3d.com/ScriptReference/Physics.OverlapCapsuleNonAlloc.html

If you get 16 hits, you don't know if there were actually 16 things in the area, or if there were more than 16 and you ran out of space in the buffer

[cosmic rain]

Before everything else, do you understand what a memory allocation is?

[dense estuary]

Setting away space for data

to save for later

[heady iris]

notice how Physics.OverlapCapsule returns a Collider[]

this means that it has to allocate a new array each time you run it

[dense estuary]

Yes

[heady iris]

you probably then use the array once and throw it out

so it gets garbage-collected later

[cosmic rain]

Well, it's not wrong, but you're missing the point.
Memory allocation is when you tell the system(or the app, depending on stuff), that this address in memory is gonna be occupied by something. It involves checking if it's not occupied already and notifying stuff to not occupy it later. In C# reference types are allocated on the heap and are subject to GC(garbage collector), so it also involves some logic with the GC, like keeping track of the referencing objects and stuff. That's why memory allocation in C# is relatively expensive. So instead of allocating stuff every update, you would do it once in awake for example and keep on using the same allocated object, just overwriting it's fields.

Normal Overlap method creates a new array under the hood which is a memory allocation. Non alloc version, fills the array that you pass in instead, so it doesn't allocate anything.

[heady iris]

Garbage collection is a non-trivial cost and can cause some very nasty hangs if it takes too long.

That's why the profiler has a "GC Alloc" column.

that shows you how much heap memory your code is asking for each frame

[cosmic rain]

That's true, but there's also a tendency to exaggerate it's costs. If you allocate just a few bytes every frame, it's not critical. Any kind of optimization should come from profiling and identifying a problem first.

While caching might seem like a perfect solution with no downsides, it's not. It makes your app consume memory. If you rarely ever use all the preached space, your app just uses more memory for no reason.

[heady iris]

indeed

[cosmic rain]

Then you get games that require 32GB RAM for no particular reason

[dense estuary]

Ohhhh, I had no idea that that was how memory worked in C#, thank you, that is incredibly useful information. That explains a lot.

That all makes much more sense

[heady iris]

one easy way to reduce that cost is to just make that array static

you're not multi-threading, so it's impossible for two methods to try to use the array simultaneously

now you've got one array that every single instance of your method re-uses

[proper trellis]

ok so like
how would i get RenderSettings to serialize in a json

its a type, so it wont work

[cosmic rain]

We barely just scrapped the surface of memory management in C#. There's a lot more to it. I suggest checking the C# manual at some point, as it covers it properly.

[heady iris]

RenderSettings isn't an object

so yeah, you can't serialize it

[proper trellis]

well anything i can do to get it at least kinda working

[heady iris]

I presume you want an instance of RenderSettings

[proper trellis]

yeah

[dreamy wave]

How do I make it so that in my VR game, when I pick up a book, how do I make it open automatically to just one page? I'm not gonna end up having multiple so just the one.

[rigid island]

do you have a book already with page separated?

or are you doing UI for the page

[dreamy wave]

Rn I don't, but I do plan on modelling my own with the pages being their own separate objects.

[dreamy wave]

physical object you can grab

[lean sail]

this would mostly just be animation work then

[heady iris]

how do I make it open automatically to just one page

animate the book opening!

i'm unclear what the problem is

[dreamy wave]

ah alr. Would it need any coding like lets say, I code it to so like if book is grabbed, then open page

something like that

[heady iris]

sure

you'll need some logic to make the book grabbable in the first place

[latent latch]

you can probably do it all with the animator

[dreamy wave]

alr ty guys

❤️

[dense estuary]

For making a radar (technically a minimap), would it be bad to clear something made last frame and make a new version of it at a different position?

I have this: cs private void Update() { int hits = Physics.OverlapCapsuleNonAlloc(player.transform.position - scannerVertical, player.transform.position + scannerVertical, scannerRange, results, layerMask); for (int i = 0; i < hits; i++) { Debug.Log($"Hit #{i}"); } foreach (Collider i in results) { // Clear and Create icon on scanner screen // Move icon to current position CreateAndClear(i.transform.position); } }

[heady iris]

Destroying and instantiating icons every single frame will be producing a lot of garbage

But it's a perfectly valid place to start

[cosmic rain]

We're not sure what you mean by "clear and create" too. Are you actually referring to instantiating?

[dense estuary]

Yes

I was planning on deleting all of the icons, then creating new ones at the new positions. I was also thinking it would be messy.

[cosmic rain]

Start with that and see if it causes any issues(profile the method for example and see how much GC it allocates). Then make a decision wether you need to optimize it or not.

A pool of icons might be a better approach, but it's up to you to decide wether it's worth the effort or not.

[proper trellis]

wait so how would i do this

cant figure it out

[cosmic rain]

Why are you trying to serialize a type? What's the goal?

[dense estuary]

Would using a for loop be the best way to destroy the icons? Since they are child gameobjects of the plane this script is attached to.

[proper trellis]

rendersettings is different

its pretty much just the environment tab in lighting settings

it even updates properties depending on current scene

i wanna serialize it and store it in a json so i can load it externally later

[heady iris]

okay, but you don't want to serialize a type

the problem is that all of its properties are static

[proper trellis]

i mean serialize the data in it

the data is never gonna be modified after its saved, so i just need the data

[heady iris]

You can probably do this with Json.NET https://stackoverflow.com/questions/30193871/how-to-serialize-static-properties-in-json-net-without-adding-jsonproperty-att

You can instruct it to serialize something's static fields

ah, and you're using Json.NET, so there you go

I'm not so sure about deserialization

[cosmic rain]

What other options do you have?

[dense estuary]

I can't think of any, but I am experiencing a problem

[cosmic rain]

Is it unity type? Or your own?

[dense estuary]

Currently I am getting an error saying at line 43: "Object reference not set to an instance of an object". Here is my script: https://hastebin.com/share/ilitizuqol.csharp

[proper trellis]

unity

[heady iris]

Share the entire script.

The line numbers are off because you excluded the using directives

[cosmic rain]

Ok, then you definitely shouldn't try to serialize it.

[proper trellis]

i meant the data in it

[cosmic rain]

If you need to save the data in it, store it in an instance of your own type.

[heady iris]

oh yeah,RenderSettings derives from UnityEngine.Object

for...some reason

[proper trellis]

i tried that and it just wouldn't work

idk why

[heady iris]

you will need to copy the data you need out of it

[dense estuary]

Oop, sorry, here: https://hastebin.com/share/egadosibaf.csharp

[proper trellis]

just would always error about smth

[heady iris]

well, what was the error?

"about smth" is not meaningful

[cosmic rain]

Wdym? What errors exactly?

[heady iris]

there's no reason you can't just make your own class to hold the data and serialize it

[proper trellis]

i remember one was just a "null reference exception" like nothing else just that

[heady iris]

Your foreach loop is wrong

[proper trellis]

another was smth with json encoding, it seems to freak out abt colors

[heady iris]

OverlapCapsuleNonAlloc returns the number of hits

It doesn't change the length of the array (that would be impossible)

[heady iris]

You need to use a for loop to iterate over the valid indices.

[cosmic rain]

This is a very simple error. You should be able to solve it if you're asking in this channel.

[heady iris]

A foreach loop will give you every item in the array, including items that were never assigned to by OverlapCapsuleNonAlloc

[cosmic rain]

Share the error details.

[proper trellis]

i deleted the script with the intent of starting from scratch

as it was already becoming too much of a problem

then i asked here

[cosmic rain]

Well, you can't serialize a type and definitely not one that unity didn't intend to be serialized.

[heady iris]

well, we can't tell you very much if you deleted everything

[proper trellis]

actually hold up

i think i still have the script

found it

thats the class i made

[dense estuary]

So I would put the CreateAndClear method in the for loop and get rid of the foreach loop? How would I plug the Colliders into CreateAndClear()?

[heady iris]

Yes.

[proper trellis]

for the exporting, literally just created a new entry in the json export using new DimensionRenderSettingsObject() since CopySettings() wouldn't work

[heady iris]

If the overlap finds 5 items, it will only write 5 items into the array

You must not try to do anything with the rest of the array.

[cosmic rain]

Please share the code correctly!code

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[proper trellis]

https://hastebin.com/share/cowadikula.csharp

[heady iris]

do not derive DimensionRenderSettingsObject from UnityEngine.Object

just make it a plain old class

don't derive DimensionRGBColor from it either

[proper trellis]

ight did that

still cant copy over the data due to due this???

cant figure it out

[dense estuary]

How?

[heady iris]

by writing a for loop that only iterates over the valid indices

[heady iris]

Look at what my script does.

[dense estuary]

whats the difference between ++i and i++?

[heady iris]

nothing in this case

[dense estuary]

oh

[heady iris]

I just use prefix by force of habit

[dense estuary]

sorry

[heady iris]

The loop condition is not i < overlapResults.Length

the condition is i < hits

[cosmic rain]

Share the line that is underlined

[dense estuary]

OH

[heady iris]

The overlap method stores each collider it hits into the array. That's all it does.

[dense estuary]

I GET IT

[heady iris]

So if it doesn't fill the array, you have random trash left in it

[proper trellis]

SceneRenderSettings = DimensionRenderSettings.CopySettings(),

[toxic bramble]

Does anyone have a key door system

[dense estuary]

So I would do CreateAndClear but instead of i in the perenthesis I would do results[i]?

[cosmic rain]

CopySettings is not a static method, yet you try to use it as one.

[heady iris]

Yes.

[spring creek]

Likely many people do.
What have you tried and what are you struggling with?
In essence you just enable a bool or store a value and check it when you are near a door. So learning about trigger colliders should be enough to get it working

[dense estuary]

That makes so much sense

Thank you so much!

Ill work more on that tomorrow. I got to go to bed I have exams.

[proper trellis]

YES OMG I GOT IT WORKING

thx

[proper trellis]

ok rq
any way to have the SceneRenderSettings table entry be conditional-based, currently doesn't export if there's no external lightingsettings and i wanna fix that

code:

bool hasLightingSettings = descriptor.SceneLightingSettings != null;
var dimensionDescriptor = new
{
    Name = descriptor.Name,
    Author = descriptor.Author,
    Description = descriptor.Description,
    SpawnPoint = descriptor.SpawnPosition.name,
    TerminalPoint = descriptor.TerminalPosition.name,
    SceneLightingSettings = descriptor.SceneLightingSettings,
    SceneRenderSettings = DimensionRenderSettings.CopySettings(),
    Addons = new
    {
        SlipperyObjects = descriptor.Addons.SlipperyObjects.Select(go => go.name).ToList(),
        ExtraTerminals = descriptor.Addons.ExtraTerminals.Select(go => go.name).ToList(),
        TriggerEvents = triggerEventsData
    }
};

basically, table has entry if true, isn't true, entry isn't there

i have a workaround, but i wanna know if theres a more elegant solution

[cosmic rain]

Serialized data has to have a predefined structure. You can't add/remove stuff from it dynamically. Unless it's elements of an array or something.

You could have 2 separate classes for with and without lighting data. Or just make the lighting data uninitialized and use some kind of bool to store it's state.

[proper trellis]

i mean the dimensionDescriptor, i wanna have it export different depending on if this is empty or not

[cosmic rain]

Then make a check. If it's null serialize DataWithoutLighting. If it is not, serialize DataWithLighting.

[proper trellis]

yeah i know i can just export two different tables in one if statement

i just wanna know if i can essentially have an if statement in the table, so i dont need to do that

[cosmic rain]

Or serialize DataWithLighting, but a bool hasLightingData inside to determine whether to serialize/deserialize that part.

What tables are you talking about? This is not a carpentry discord.

[proper trellis]

dimensionDescriptor
its a table if im right

[cosmic rain]

Just kidding. But the use of tables is not appropriate here as you serialize objects.

It's not.

[proper trellis]

oh wait is it an array

[cosmic rain]

What's the type?

Ah, I see

It's an anonymous type

In either case, it's an object, not a table.

[proper trellis]

oh

[cosmic rain]

But to answer your question, no you can't use a bool inside, as it's basically an initialization of the object.

[proper trellis]

oh ight

[cosmic rain]

You'll need an explicit type if you want to add some logic like if statements

[faint nimbus]

would it be possible to generate a plane only when interacting on an item? or is it better to put planes but invisible on every item? but the problem is, the plane should be in a different layer mask, not sure if i could do that on non physical coded planes

I want to make something like this, maybe not planes

I was thinking if it is possible to make them appear or generate only when interacting, (no physical mesh), or would not possible, and I just have to put them on every clutch/lever for the car?

[orchid abyss]

how to use collider variable outside oncollision enter?

[cosmic rain]

Wdym by "no physical mesh"?

[faint nimbus]

in coded form like .plane or something similar (dont know the exact variable)

like how we can make invisible non physical circles for groundcheck and set the radius

[cosmic rain]

You could issue a command buffer draw call, but I don't think it's gonna be worth the effort. Much simpler if you have it in the scene on a singleton or something and just enabled and position it correctly when needed

[faint nimbus]

ah okok, by singleton, is like the interactor in the main camera? from how i understand, it stores the mesh but will only move the mesh thingy to the item?

[cosmic rain]

By singleton I just mean that you have one of these objects in the scene and reuse it for any scenario that you need.

Singleton pattern might make it easier to access it, but it's not necessary.

[faint nimbus]

ah okok

thank you dlich

[hasty canopy]

1. Pls atleast keep your code indented before posting
2. collider is a local variable from oncollisionenter so it won't be available to use outside of that scope.
   You can store its value by creating a global variable to use it from other functions

[orchid abyss]

[cosmic rain]

Holy moly. I didn't notice that.😱

[spring creek]

I feel like the ide should automatically fix that? I am so used to my linter though, not sure what is there by default

Clippy ❤️

[cosmic rain]

It should be fixing that by default. I'm not sure why it doesn't for them. Maybe they don't ever use Tab to autocomplete

[sudden portal]

I'm currently building a turn based game. 2 Teams, Player and Enemy. Player is controlled by the user, Enemy is controlled by algorithm.

There are several characters per team. The order in which they have their turn is based on each characters "initiative" value (similar to games like HoMM, BG, DoS, etc.).
My current approach: in instantiation, create an array of all Characters and order this array based on the initiative value. The turns cycle through each element of the array and then starting back at 0 again.

I feel like this approach might limit me in the future (spawning new enemies during runtime, removing enemies, etc.). Any ideas how to implement this more solidly?

[fervent furnace]

havent played HoMM BG DoS before.......

but i guess you mean the game cycle is based on some value on character not player->enemy->player->enemy....?

[knotty sun]

how often does a characters initiative value change

[sudden portal]

Initiative values are static and determined before scene launch.
@fervent furnace yes exactly.

[fervent furnace]

i wonder what if
eg a turn of character with value 10 just passed but a new character with value 8 is inserted? (assume the turn started from less value first)
ie a new character with smaller value is inserted after a turn of character with higher value just passed

[knotty sun]

then I think I would just use a linked list of characters, that will be easy and quick to change should you need to at run time

[sudden portal]

@knotty sun You mean "LinkedList<T> Class"? What's the difference to a regular List for my project? Looks promising!

[cosmic rain]

I mean,even a regular list would work

[sudden portal]

@fervent furnace Either re-calculate the list or only have new characters in the next cycle (after all other characters had their turn once)

[cosmic rain]

You can just insert new characters into the list in the right place

[knotty sun]

Not quite, I would implement it myself. But yes, this will work for you. The benefit is it allows you to read the List in a specific order and maintain that order in an organised way

[fervent furnace]

linked list itself is useless, never see the real use case of "regular" linked list (tree or graph or open hash table uses linked list but they not just a linked list), unless you have a additional hash map for random O(1) access and double linked list for O(1) remove/add

btw list will works, but i wonder who can take action after insertion? the next character right after the higher value's one or the new inserted character or or restart the game loop or other strategy? you may need an additional pointer to next character right after the higher value's one, not just insert

[sudden portal]

Thanks for the insights everyone. I will implement a List and see if it works well for me.

@fervent furnace Interesting thought - I think having a bigger cycle where all characters go through once makes sense here. Newly instantiated characters only work in the next cycle.

Instantiating them in the same may create too many edge cases

[knotty sun]

Question: Do you envisage having duplicate initiative values or will they be unique?

[sudden portal]

@knotty sun I will have duplicate initiative values. I already created functionality that iterates through all Characters with the same Initiative value and randomly orders them in their initiative Level.

[knotty sun]

then I would suggest making your initiative a Tuple (int level, int position)

[sudden portal]

@knotty sun why? and what would level / position mean in this case?

[knotty sun]

so level is the initiative value and position is the sequence of that character within that initialive

it gives you a unique key for each character

[sudden portal]

I see thanks for your input!

What's the best approach to re-order an existing list? Say I want to move element [6] between [3] and [4] for example?

[knotty sun]

that is where linked list shine.
update [3] to point to [6] and [6] to point to [4]
job done

[sudden portal]

I just read that a linkedList is not index based. I can still access each element using listName.ElementAt(n), right?

where n is the index

[knotty sun]

yes you can, see the Extension methods in the docs

although you should never need to do that if you use that class

[cosmic rain]

Maybe start with a regular list. I wouldn't use linked list unless it was justified performance wise.

And it rarely is.

[sudden portal]

Guess I will try both approaches and play around a bit. It's just for learning purposes anyway.

using a regular list, what would you recommend for my question?

What's the best approach to re-order an existing list? Say I want to move element [6] between [3] and [4] for example?

clearing and re-populating maybe?

[cosmic rain]

List has Remove/Add/Insert methods and many more. I suggest looking up the documentation for all the available API.

[chilly surge]

Actually feels like link list could be nice for this case, with an index based data structure like list where you keep track of the current character via index, inserting a new character prior to the index means you also have to manually shift the index by one to keep it in the proper location, and same for removal. It wouldn't be a problem for linked list since you are always traversing by next pointer than by index.

[sudden portal]

Would List

var store = listName[6|
listName.RemoveAt(6)
listName.Insert(4, store)

not work in my case?

[cosmic rain]

Yes that should work

Do note that indices would shift after inserting/removing

[molten timber]

is there anyone that could help me with my problem when i press E or mouse0 on the weapon i want to pick up it just goes invisble when its picked up and it still shoots and stuff

[cosmic rain]

Sounds like an issue for #💻┃code-beginner

[sudden portal]

You mean initial index 4 is then 5, 5 is then 6 and so on?

[molten timber]

could you help me dlich

please

its so anyoinng

[cosmic rain]

If you insert before 4, yes.

[cosmic rain]

If you share your issue details and code properly.

[molten timber]

yeah i could screen share if you got time

but i am gonna be muted

but i will hear you

@cosmic rain

[magic briar]

Hello. I hope this problem includes to this channel. I have TextMeshPro on canvas and I change text in runtime. That's not a problem, but how to make some letter/words bigger/thicker than others when the words (sentence) are created by one textMeshPro object? I tried applying bold to words by $, but I need make it more visible

[cosmic rain]

No screen sharing. I've replied in beginner code.

[molten timber]

@sudden portal i am in school

[molten timber]

ok will do

[cosmic rain]

Tmp supports rich text tags:
https://docs.unity3d.com/Packages/com.unity.textmeshpro@4.0/manual/RichText.html

[magic briar]

Oh. I see. Thank you!

[molten timber]

@cosmic rain

[cosmic rain]

Share !code properly

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[molten timber]

do you want everything

[dense tusk]

boi

[molten timber]

like that?

[dense tusk]

pause

use one of the links he sent you to paste your code there

[molten timber]

oh

my bad

[dense tusk]

lmao all good

[molten timber]

https://paste.ofcode.org/36QEpu4wcVMgzNLGSRjncVE

@cosmic rain

[cosmic rain]

The relevant code. Responsible for equipping the weapon.

[molten timber]

i wrote new code below where i put the new code

ive got a stomach feeling its doesnt have anything to do with the code since ive got no errors or warnings

[dense tusk]

all my fellas, i'm trying to have my player transition to a location which i have designated with an empty game object so it's easy to adjust the position. in the player script, i'd like to do something like

//Player controller script
if (player click triggerobject)
{
  Trigger();
}

if (enterPosition != null)
playerTransform.position = enterPosition.position;

enterPosition is a Transform which i would like to update whenever a new trigger object is interacted with. i have an abstract class script set up, and i'd like to update what should be saved to enterPosition from the override method, but i'm scratching my head at how to do that.

//Door trigger script
  public override void Trigger()
  {
      playerControl.enterPosition = doorEnterPos;
  }

i've tried a few variations of this, but haven't gotten it to work yet

[cosmic rain]

Don't have much time now, but logic bugs are rarely accompanied by errors and warnings.

[molten timber]

not to rush you but if you could just take 4 min to hop in a screen share in a call so i can show you my problem

[cosmic rain]

If I don't have time to look at the code, I definitely don't have time for a screen share.

[dense tusk]

just taking a glance at your issue @molten timber , i'm wondering if it might be this little part here

if (leftoverQuantity > 0 && openSlot)
{
    openSlot.setItem(itemToAdd);
    itemToAdd.currentQuantity = leftoverQuantity;
    itemToAdd.gameObject.SetActive(false); //specifically this part
}

that itemToAdd.gameObject.SetActive(false); line might be why it's invisible: it's being set to inactive

[cosmic rain]

I don't see any code related to equipping the gun... I assume it's in the WeaponManager..?

[nocturne wyvern]

Hi, I wark with UnityWebRequest and I always get this error

{"message":"Validation failed: deviceId must be a string, adaptyId must be a string","error":"Bad Request","statusCode":400}
Cysharp.Threading.Tasks.UnityAsyncExtensions+UnityWebRequestAsyncOperationAwaiter.GetResult () (at

String that used as body in request on first screen

[lean sail]

you likely dont want that playerControl.enterPosition to be so public, but what doesnt specifically work? You should show the actual code instead of pseudo code because what youve posted doesnt really make sense, you are calling Trigger() in a player controller script which is unrelated to your door trigger script
I would do something like, click on the object, try to get a component or check its layer which indicates this is something that you may enter. Then within the player controller script, assign enterPosition (which shouldnt be named Position)

[stable kayak]

does anyone have an elegant solution to auto tiling?

[molten timber]

so all i gotta do is make it true?

[sudden portal]

You probably don't want to make it false to begin with

[molten timber]

hahah

[thin aurora]

Your question revolves around an endpoint that is not related to your code

If you are certain the error is not the case, I can only assume the endpoint does something wrong

[molten timber]

i dont understand when i add an layer to an weapon or something random i goes invisble from my game

can someone help me with that please

[thin aurora]

Perhaps you supplied the parameters incorrect?

[nocturne wyvern]

via postman this is works correct

[thin aurora]

Perhaps log the body created in the request and validate it is valid json + the actual body you expect

Maybe that Parse method that is used does something wrong

[molten timber]

i dont understand when i add an layer to an weapon or something random i goes invisble from my game
can someone help me with that please

[thin aurora]

Stop spamming the same message please

[molten timber]

spamming?

sent it twice

[thin aurora]

That looks fine. Maybe you can place a breakpoint before sending the request and see if the body is still correct? https://unity.huh.how/debugging/debugger

I can't think of a reason why this would be wrong. Perhaps the quoting is formatted wrong but I don't see why that would happen

[floral notch]

Hello all,

Is there a way to detect collisions without a rigidbody? The collisions are very erratic due to it and I want to code the "physics" of them by hand. I only want the boxcollider to tell me WHEN it has collided

[knotty sun]

simple answer, no

[floral notch]

Dang

I just want to make tiles that behave differently when you touch them

not make it so they cause weird collisions

[thin aurora]

If your geometry remains this simple you could make each box take custom bounds rather than adding a collider, and you check those instead

Keep in mind that doing this can be horrible if every single box keeps checking these things, and you should definitely have some type of blockmap that tells which box "might" collide with something

[floral notch]

That could work. What's the standard way people do it? This surely can't be it, when you collide into a wall in platformers, you don't stutter and change direction

am I missing something obvious

[thin aurora]

Sorry, no idea. This is better suited for another channel

[floral notch]

which one

[floral notch]

do you happen to know the standard way this is done?

[knotty sun]

there is no such thing as 'standard' everything depends on what you are trying to achieve. As you have provided no information about your setup, what you are doing and what you are trying to achieve it is impossible to provide you with information

[floral notch]

I'm just trying to make a tilemap where each different tile behaves differently when you touch it

collisions seem to make it like you're physically smacking the tile

and it applies a force against you

[knotty sun]

yes, imagine running into a brick wall irl

[floral notch]

Yes but is it not possible to have a tile that detects a collision without also applying a force?

[knotty sun]

yes, they are called triggers

[floral notch]

Oh interesting. I can see that option on my player box collider but not on the tilemap collider

does it only work with box

[ripe mountain]

Hi everyone is there any videos that will help me add into my game where if the character touches a object it adds 1 to the score?

[knotty sun]

I think you will find it does
https://docs.unity3d.com/Manual/class-TilemapCollider2D.html

[floral notch]

ohh I see it now. So will the trigger allow me to detect collisions without a rigidbody then?

because right now it seems to not work without it

[knotty sun]

no, you still need the rigidbody2d

[knotty sun]

https://docs.unity3d.com/Manual/CollidersOverview.html
Please read

[nocturne wyvern]

I see alse this errors

[knotty sun]

there are 1,000's on YT

[floral notch]

This seems to say at least one object must need a rigidbody. But it still won't remove the erratic behaviour and "trigger" removes any collision at all

I feel like I'd be better off just handwriting the collision logic

it's really simple anyway

and I wouldn't need to mess with colliders

[orchid abyss]

why do i always get "type mismatch" when assigning my player attribute manager to a prefab?

[warped condor]

My team and I have a fairly sizeable project containing mostly class lib projects that we use across all of our different games. At the moment we're just copying and pasting the entire shared lib folders into each of our games however we'd really like to centralise these shared lib folders and store them in a seperate VCS enviroment. What's the best way to go about this (i.e what should our .csproj files look like so they can be referenced by the unity project root .sln file and be built and compiled into our exe, apk etc.) How can we reference the unity engine and editor dlls in your shared librar csproj files (I've tried already inside VS but I keep getting an error saying the unity dlls are invalid or are unsupported). Also VS doesn't seem to like my project referncing .NET framework 4.7.1 which is what the current version of out unity installation uses

[thick terrace]

you can compile your shared code as a separate managed plugin, but normally it's easier to import the source files straight into the unity project and let unity compile it! for one thing, if you use it on multiple games, it's a huge headache to build different DLLs for multiple different unity versions

my preferred way to do it is to put a package manifest (https://docs.unity3d.com/Manual/upm-manifestPkg.html) in the shared module and check it out into each game's Packages folder so it shows up as an embedded package

[cosmic rain]

Scene objects can't be referenced outside of the scene.

[warped condor]

That sounds sensible. Shame there isn't a better approach for separation but this should work for our needs. Thanks

[thick terrace]

worth mentioning that if you're using a VCS that has a feature like git submodules, it works really nicely for that - you can also reference a repo by URL in the project manifest but unfortunately that only works with git iirc

[warped condor]

We've recently migrated over to unity's built-in VCS to try and have a more unified development experience within unity (also it's easier for our artists)

[thick terrace]

that's the one that used to be plastic right? i think it'd be an "xlink" in plastic?

[wise geyser]

Does anyone has some knowledge on how to send live view from secondary camera into pop up style second window? Multi-display is not what I'm looking for

[ember lance]

When making custom UI for my scripts is there an easy way to make a field that has a scrollbar

This only make that

And yes I know I shouldn't write a zero there was testing stuff

[hexed pecan]

Slider instead of floatfield

[ember lance]

Thank uuuuuuu

[placid summit]

If I inherit from a UGUI monobehaviour and add some new inspector variables they do not show up, what is the easiest way to fix that?

[elfin tree]

Hey! I'm trying to make the tower in the middle of that big range collider clickable, I've had no success using OnMouseEnter (because the range collider will always block it and be the raycast target instead) and using Raycasting with ignore on the "Tower Range" layer doesn't work either, for some reason it entirely ignores the "Tower" layer and hits the "Terrain" layer (plane) for some reason

What would be the proper way of doing this, or is there anything that I tried that should work?

[heady iris]

What does your hierarchy look like?

[hexed pecan]

What are you inheriting from? Pretty sure youre not supposed to extend Unity UI classes

[thick terrace]

it probably has a custom editor, a lot of them do, so you'd need to create a subclass of its editor too

[heady iris]

I've done this several times!

you probably just need to add a custom editor, yes

for example, I subclassed Button to allow it to target multiple graphics (instead of just one)

[placid summit]

yes you are right - I need to extend the custom editor

[heady iris]

using UnityEditor.UI;
using UnityEditor;

[CustomEditor(typeof(MultiGraphicButton))]
public class MultiGraphicButtonEditor : ButtonEditor
{
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();

        EditorGUILayout.PropertyField(serializedObject.FindProperty("targets"));

        serializedObject.ApplyModifiedProperties();
    }
}

[hexed pecan]

Ah ok, that sounds handy. I was thinking of something else then

[heady iris]

yeah, the UGUI classes are (reasonably) friendly to extension

[placid summit]

I have to do it for circular hit detection - the rectangular-only is a bit rubbish!

[sudden stump]

From a scale of 1 to 10, how screwed up is this?

public class Health : MonoBehaviour
{
    public int currentHealth;
    public int maximumHealth;

    // Start is called before the first frame update
    void Start()
    {
        currentHealth = maximumHealth;
    }

    public void TakeDamage(int damageValue)
    {
        currentHealth -= damageValue;

        if (currentHealth <= 0)
        {
            currentHealth = 0;
            Destroy(gameObject);

            if (GetComponent<DamageOwner>() != null)
            {
                Destroy(GetComponent<DamageOwner>().damageOwner.gameObject.GetComponent<DamageOwner>());
            }
        }
    }

    public void HealHealth(int healValue)
    {
        currentHealth += healValue;

        if (currentHealth > maximumHealth)
        currentHealth = maximumHealth;
    }
}```


```cs
public class DamageOwner : MonoBehaviour
{
    public GameObject damageOwner;


    void DestroyScript()
    {
        if (damageOwner == null)
        {
            Destroy(this);
        }
    }
}```

```cs
public class DamageOnCollision : MonoBehaviour
{
    public int damageAmount;

    void OnCollisionStay2D (Collision2D other)
    {
        if (other.gameObject.GetComponent<Health>() != null)
        {
            other.gameObject.GetComponent<Health>().TakeDamage(damageAmount);

            if (other.gameObject.GetComponent<DamageOwner>() != null)
            {
                other.gameObject.GetComponent<DamageOwner>().damageOwner = gameObject;
            }
            else
            {
                other.gameObject.AddComponent<DamageOwner>();
                other.gameObject.GetComponent<DamageOwner>().damageOwner = gameObject;
            }
        }
    }
}```

[covert swift]

im making a horror game and i used the render texture and raw image to get a pixelated look. But the issue is that when i change the volume that has the post processing overrides, it does not come to the render texture? how can i fix this?(i used the URP template).
the post processing effect does not come the the pixelated look

[sudden stump]

@placid summit That bad?

[placid summit]

You can definitely use les GetComponent - like other.gameObject.AddComponent<DamageOwner>()?.damageOwner = gameObject and cache other.gameObject. But I would use less micro components and have 1 Person Component that can always reference other smaller ones

[leaden ice]

this makes me want to die GetComponent<DamageOwner>().damageOwner.gameObject.GetComponent<DamageOwner>()

you also don't need .gameObject in anything in DamageOnCollision

and you should use intermediate variables instead of constantly calling GetComponent over and over

[soft shard]

Does the camera that is updating your render texture have the correct layers your post processing volume is using?

[leaden ice]

Learn about TryGetComponent too

[sudden stump]

This was actually done on purpose

[leaden ice]

Why

[sudden stump]

I didn't know whether the code was going to stay or not, since this is still the prototyping phase

[leaden ice]

Why would you write the code bad intentionally

[sudden stump]

So I just wanted to write something as quickly as possible

[leaden ice]

whether it's staying or not

it's much faster to not rewrite GetComponent 80 times

[sudden stump]

It's pretty easy to get rid of the GetComponent hell with a variable

But it wouldn't matter if the actual code was bad, I'd just end up deleting it

So is GetComponent the only issue here?

[leaden ice]

Anyway why ask for a code review with code you haven't already cleaned up

[leaden ice]

no there's a ton of unecessary stuff

not just the GetComponents

the .gameObjects too

[sudden stump]

This is for the architecture, as in how the scripts connect with each other

The other stuff that's just bad reading could be changed, I have little experience with Unity's methods since I only studied C# (not even to a good degree, intermediate if we're really pushing it)

[leaden ice]

This would be better done with an event:

            if (GetComponent<DamageOwner>() != null)
            {
                Destroy(GetComponent<DamageOwner>().damageOwner.gameObject.GetComponent<DamageOwner>());
            }```

[tired elk]

Hey ! Is there a way to tell if a SerializedPropertyChangedEvent is the one triggered at the initialization of a PropertyField so that I don't react to it? Apparently it is triggered when data binding happen

[sudden stump]

Any reason why?

[leaden ice]

so you don't have this weird hard dependency between the scripts

[sudden stump]

Hmm, actually that's a good point. Another thing to read up on (or just use C#'s events)

[leaden ice]

Yes I mean C# events

[placid summit]

Does anyone really use such micro size components? - you will have to do so many GetComponent calls that are not super fast. Just have a Main player/enemy etc component and if required have cached references from within that to others.

[sudden stump]

It seems better to make a more modular system... when done right

[leaden ice]

The "slowness" of GetComponent is definitely overhyped

[sudden stump]

And I don't see the point in making 20 components then keeping a main Player/Enemy/Object one for calling stuff

[covert swift]

i dont use the post precessing volume. i use the volume compoment built in urp

[leaden ice]

I have never seen someone come in here with a framerate issue and the reason for it was GetComponent

It's a non-issue

[sudden stump]

^

Besides, my game's going to have low poly and textures, and those are the worst for performance

[placid summit]

ok that is good - depends of type of game of course

[covert swift]

@soft shard

[oblique spoke]

Storing combat result information in Health is probably fine too

[ripe mountain]

Hey all i want a bottle of water to randomly spawn when you hit the first one but it doesnt work, im following it from a tutorial

[sudden stump]

Could work, that way I won't have to go through this hell just to keep track of who damaged who

[ripe mountain]

can you see anything wrong?

[sudden stump]

But it might make it so that some objects have variables that you won't ever use

Well, assuming I was making a bigger game

Think this is fine for now

[oblique spoke]

I would go for a few extra variables over the work of managing DamageOwner component.

[soft shard]

AFAIK, the camera will only render post effects, regardless if its from the "Volume" component or Post Process components, based on layers

[scarlet shoal]

Hi, this I believe was meant in the general context of C#, not Unity, but I'm still curious to hear from you:

File Traversal: Traverse the directory tree, starting with the specified path. Will you
prefer a single-threaded or a multi-threaded approach? What are the tradeoffs?

Would it actually be worth it to multithread file traversal?

In situations where you don't know how many files and catalogs you'll encounted this sounds to me like asking for trouble. In addition, file traversal is IO

I can't really see there being much benefit in doing this, unless you have the most optimistic scenario where the number of threads somehow aligns with the number of folders and you don't spend a lot of time waiting for free threads. Is my reasoning wrong here?

[thin aurora]

Please Debug your code and see if the methods are triggered by using Debug.Log and checking your console for output.
Additionally place a log inside both if-statements to see if they are entered.
https://unity.huh.how/debugging/logging/how-to

Also, tag comparison should use CompareTag, as your IDE most likely is suggesting.
https://docs.unity3d.com/ScriptReference/GameObject.CompareTag.html

[elfin tree]

Anyone knows why this code DOES hit the layerMask it should be ignoring?

[thick terrace]

because despite common sense, LayerMask.NameToLayer returns a layer index, not a layer mask 😔

[elfin tree]

And is the solution 1 << LayerMask.NameToLayer ?

[thick terrace]

i think that should do it yeah

[hexed pecan]

Or LayerMask.GetMask

Also your mask seems inverted

[elfin tree]

LayerMask.GetMask("Tower Range"); correct?

[hexed pecan]

It doesn't ignore those layers. It's the opposite - it includes only the layers in the mask

[elfin tree]

Oh nice, okay.. that's probably my issue

Seems like that was it, still have few things to fix to be completely sure though

tyvm

[latent latch]

#🏃┃animation

[gusty aurora]

How to know when a prefab is instantiated ?

Some callback that gets called when a prefab is dragged from the project into the hierarchy ?

[latent latch]

Maybe one of the enabling callbacks would be called

Such as OnEnable or OnValidate

[gusty aurora]

In the editor I mean, outside play mode

They get called with [ExecuteInEditMode], but that's pretty clunky

Also they get called every single time I start and exit play mode =X

I'm looking a simple callback OnPrefabInstantiated or similar

[latent latch]

I would try them out just because the behaviour of these instances are kinda less intuitive

for these callbacks

because I know ScriptableObjects and methods like Awake() have some funky behaviour (in the editor)

otherwise yeah, make an ExecuteInEditor script

could be its own separate component you can just tack onto stuff

[gusty aurora]

It feels so ultra mega clunky

I can't believe there is no simple callback when a prefab is instantiated

[elfin tree]

Is there a way to ignore certain layer for OnMouseEnter and similar methods?

[thick terrace]

if you want more control than this i think you have to do the raycasting yourself

[elfin tree]

Do you know if something on the Ignore Raycast Layer will detect collisions?

[leaden ice]

Use IPointerEnterHandler instead and then you can use the mask on the Physics Raycaster component https://docs.unity3d.com/Packages/com.unity.ugui@1.0/manual/script-PhysicsRaycaster.html

[late lion]

If you specifically want to know when something gets dragged and dropped into the hierarchy, there's this:
https://docs.unity3d.com/ScriptReference/DragAndDrop.AddDropHandler.html

[elfin tree]

Interesting, will give that a try, feel like I went away from IPointerEnterHandler for some reason, hopefully not true anymore

[hexed pecan]

Btw you can use the ~ operator to invert a mask. So if you want to ignore Tower Range, you can do ~LayerMask.GetMask("TowerRange")

Or make a serialized field and assign it in the inspector if that's possible

[elfin tree]

very good to know

[elfin tree]

how would that look? i'm a bit confused by what you mean looking at the doc
do you mean a global setting or really specific to that one IPointerEnterHandler?

[leaden ice]

the Physics Raycaster component (which you should have on your camera) has a layermask in the inspector

that will be applied to the raycasts it does in order to call OnPointerEnter on things

so you can exclude objects like that

likewise for the Graphic Raycaster on your Canvas (for UI elements)

(these are also accessible via script, if needed)

[elfin tree]

ahhh in my case it's in a canvas so i'll use graphic raycast

[leaden ice]

OnMouseEnter doesn't work for UI stuff at all that's why I assumed you were talking about physics

but yeah same deal on the Graphic Raycaster

[leaden ice]

All Graphic elements also have a "Blocks Raycast" or "Raycat Target" checkbox as well

[elfin tree]

I'm probably missing something but I have the following, the green collider blocks raycasts (ipointerenter) on ui
and i've set my blocking mask to not be blocked by the "Tower Range" (green collider) layer
it's still blocking though (removing the green collider will make the pointerenterhandler trigger)

[leaden ice]

What's "the green collider"?

Is this an actual physics collider?

[elfin tree]

ye, that somehow blocks ui

[leaden ice]

yeah that'd be via the physics raycaster

exclude it on the physics raycaster

[elfin tree]

somewhat confusing but makes sense

i hope it wont break anything else

oh wow.. adding physics raycaster to my camera does break things, i'll see if i can figure out why

it seems to break some of my Physics.Raycast

[leaden ice]

shouldn't

but also the multiple raycasters disambiguate which is in "front" by distance

so distance to the camera is another lever you have here

[swift falcon]

hey thanks i will look into the action map asset, sounds interesting

[elfin tree]

oh man.. when it shouldn't but it does haha

i'll see if I can figure it out

i mean it only breaks one of my other raycasts so that's interesting

the one here

        private void Broken() {
                _ray = _mainCamera.ScreenPointToRay(Input.mousePosition);
                if (Physics.Raycast(_ray, out _hit, 1000f, groundLayerMask)) {
                    if (!_toBuild.activeSelf) _toBuild.SetActive(true);
                    _toBuild.transform.position = _hit.point;

                    if (Input.GetMouseButtonDown(0)) {
                        // if left-click
                        BuildingManager m = _toBuild.GetComponentInChildren<BuildingManager>();
                        if (m.hasValidPlacement) {
                            m.SetPlacementMode(PlacementMode.FIXED);

                            // shift-key: chain builds
                            if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)) {
                                _toBuild = null; // (to avoid destruction)
                                _PrepareBuilding();
                            }
                            // exit build mode
                            else {
                                _buildingPrefab = null;
                                _toBuild = null;
                            }
                        }
                    }
                } else if (_toBuild.activeSelf) _toBuild.SetActive(false);
            }
        }

[icy depot]

is Transform.Find generally as costly as GameObject.Find and the such? so I don't use it every frame and stuff

oh but i found a neat workaround for not using ti every frame so might not matter

[soft shard]

Its very helpful for multi device input, I would suggest a channel on YouTube called "samyam" who has a great playlist on the Input System package, the docs also have a "How do I...?" page for common uses

[elfin tree]

mind expanding on that or linking something about it?
seems inverted or something like that
oh wow, actually in my case, raycast only works OUTSIDE game view
(so lets say my pointer leaves game view, the object that should appear starts showing)

[soft shard]

Generally, any kind of "find" operation is going to be expensive since it usually has to traverse a large list, and generates garbage doing so (same with GetComponent), it is certainly best to avoid doing those types of calls in Update/every frame, and caching your references when possible is usually a better alternative in something like Start/Awake or on an event

[elfin tree]

i have a pretty weird issue, so i have raycast code that works perfectly, but if i add a Physics Raycaster to my Camera, it stops working but ONLY when the cursor is inside game view

removing the Physics Raycaster solves the issue (but i need it)

in other words: lets say my pointer leaves game view, the object that should appear starts showing at seemingly the right place inside game view

[leaden ice]

show your raycast code

[elfin tree]

#archived-code-general message

[icy depot]

I'll cache all of my stuff in a nice dictionary so i can access it with string then!

[leaden ice]

Can you debug it and see which part is failing with the raycaster active?

Is the raycast not hitting? Is the code not running at all?

[grave tundra]

If I have a parent object and a child mesh... and I want to rotate the parent object... how can i make sure it rotates around the center of the mesh rather than (0,0)?

[elfin tree]

it's not hitting, in the code below the debug.log only shows when cursor is outside game view

[leaden ice]

but do you know if the raycast is even happening at all?

Put a log before the raycast

[elfin tree]

ohh

[leaden ice]

like maybe this whole function is inside something like:

if (!EventSystem.current.IsPointerOverGameObject())```

which would explain everything

[elfin tree]

it is

[leaden ice]

yep

makes sense

because with the physics raycaster now the event system sees the physics objects

[elfin tree]

i mean, there's an inverted if

[leaden ice]

The most elegant solution is replace this custom raycast with IPointerEnterHandler etc

[elfin tree]

ahhh

[versed spade]

Would it be a good idea to make a seperate script under my player object for movement and then another for combat?

[spring creek]

Yeah

[elfin tree]

oof i wish that part was my code, will see what i can do it's not too complex i think

ty!

[versed spade]

Just was thinking. "God I wouldn't want to read this again" if I put it all in one script lol

[spring creek]

Separation of Responsibilities is pretty powerful.

[sudden stump]

Very good for maintainability and modularity

[elfin tree]

solution was rather simple actually, just removing that condition to hide the preview when hovering ui
i can just code it myself if i ever need that

[sudden stump]

The only real issue is that you're gonna have to keep track of what each script is referencing, but if your code structure is good this is usually not a big deal and it's definitely faster to find what DealDamage.cs is referencing compared to searching for it in a huge class

[soft shard]

If that works for your usecase thats probably fine, the downside with strings as a key though is that they can be easily mistyped or changed, if I need other scripts to access references, I usually make a public property for them and pass a private cached variable, though if the dictionary is private (as in other classes dont need access to it), you probably could just have the references without a key-value

[icy depot]

i dont get what the private cached variable and the references without a key-value parts really mean.. but I get the typo part! And letting other scripts access my dictionary may be a bit tricky

[oblique spoke]

I would start with things that could be used by AI objects. I generally separate "Player" stuff from functionality of the object.

[soft shard]

If other scripts dont need to access your dictionary, then I dont think you would need a dictionary, you can just store the references directly and access them from through variables, a dictionary provides a key-value, where you access the value of data, through a key as the "index", but if the script the dictionary will exist in is the only one using it, that extra organization might add more complexity

And by a "private cached variable" I mean something like this:

public class SomeScript : Mono
{
public SomeReference CachedVar {return cachedVar;} //the private cached var is now accessed pubically from other scripts
[SerializeField] SomeReference cachedVar; //now the reference can be set in the inspector and access is private

//void Start() {cachedVar = FindObjectOfType<SomeReference>();} //this can be avoided entirely because of the above
}

If SomeScript needs to use something that would otherwise be stored in your dictionary, it can just call cachedVar or whatever the specific cache is, if something outside the class needs to access it, they can use the public property instead

[icy depot]

it adds complexity? well maybe.. i kinda just wanted the strings so it seems nice and blue

easy to see and stuff

[hard viper]

having a dictionary means you have to manage the dictionary to keep it up to date

which is doable, but means more juggling than just not having to do that

[swift falcon]

is it good to use when your main input is left mouse click?

[somber sparrow]

Making a first person shooter, and made this script to move the gun between hipfire and sights positions. it works fine until i press right click while the gun is transistioning, when it starts to shoot back and forth between the position i clicked at and the position it was moving to. How can i fix this?

[swift falcon]

as example i want to create a Point and click adventure, where almost everything needs to bind mouse click left

[grave tundra]

I have two points A and B.... I want to create a third point that is in the direction from A->B with distance d... but I also want to move it a distance d2 in an orthogonal direction... what math am i missing?

[tall salmon]

Hi! i have a problem where i have a gameobject that instantiates another one, this one takes the rotation as a guide to where to go and also takes it as speed, does someone know how i can do it only take it as the vector it should follow and not the speed? (here is screenshot of code for reference)

[leaden ice]

normalize the vector and multiply by the desired speed

Vector2 direction = mouseWorldPosition - transform.position;
rb2dBullet.velocity = direction.normalized * speed;```

rotation isn't a great name for it since it's a direction vector. A rotation would be captured in a Quaternion or a float representing an angle around the z axis for example

[tall salmon]

so i should do direction instead?

[leaden ice]

I think it's a better name for what that is

[tall salmon]

i thought it might mess up if i try to rotate anything later on

but since its just a mini game for learning i didnt think twice

[mellow sigil]

What you're missing depends on what you already have

[tall salmon]

btw srry if i ask but

what does normalized do?

[leaden ice]

gets a normalized version of the vector

[tall salmon]

and what is that?

[leaden ice]

a normalized vector is a vector with length 1

[tall salmon]

ohhhhhhh

[rigid island]

yeamb lol 🚶

[tall salmon]

wouldnt it be v3 (4,4,4) normalized 1,1,1?

[leaden ice]

The idea is you can think of a normalized vector as basically representing only a direction and not a magnitude. So you can multiply it with any number to get the same direction with any magnitude you want

[grave tundra]

@mellow sigil I think I can just do offsetPos = new Ray2D(Vector2.zero, Vector2.Perpindicular(myDir)).GetPoint(distance);

[tall salmon]

yea yeah

very helpfull

ty my man

[leaden ice]

no the length of 1, 1, 1 is sqrt(3)

[tall salmon]

sqrt?

[leaden ice]

square root

sqrt(3) == ~1.77ish

[tall salmon]

hmmm wait

lemme think rq

new vector 2 = 15 , 7.5
vector 2 but normalized would be 1, 0.5

[leaden ice]

no

that doesn't have a length of 1

[tall salmon]

oh

[leaden ice]

pythagorean theorem gets you the length

[tall salmon]

alright now

lemme pull up paint rq

XD

[rigid island]

its .58 .58 .58 🙂

[simple egret]

You take the squares of all the vector's axes (X, Y, Z), you add them, and square root the result. That's your length (magnitude)

[tall salmon]

thats what im understanding

[leaden ice]

not 1, 1

the diagonal line is 1

the sides don't have to be

[tall salmon]

OHHHH

[simple egret]

No, it's a circle around the origin, not a square

[leaden ice]

Yes you can think of a normalized vector as a vector on the unit circle

[tall salmon]

oh yeah i learned that in maths

true

[simple egret]

A normalized 2D vector pointing 45° has X and Y at 0.707 or something

[leaden ice]

so - preserve the direction of the vector but get the one on the unit circle

and that's normalization

[tall salmon]

okay

so it would be like a way to make it always be the same without taking in account the distance from point 0 to point x in case it is the same direction?

[leaden ice]

yes it's just the direction

without the distance

[tall salmon]

the red is the normalized

right?

those are two different vectors and the red symbolizes the normalized part of each one

[leaden ice]

yes exactly

[tall salmon]

yay

[leaden ice]

normalized versions of them

[tall salmon]

i got it

ty my man

was nice having some help

[quaint rock]

very useful when you only care about the direction

or want to move something in a direction, since a normalizedVector * 5 would be 5 units in its direction

[somber sparrow]

hi, im making a first person shooter, and made this script to move the gun between hipfire and sights positions. it works fine until i press right click while the gun is transistioning, when it starts to shoot back and forth between the position i clicked at and the position it was moving to. How can i fix this?

[rigid island]

what are you coding in ohmy..

!ide

[tawny elk]

💡 IDE Configuration

If your IDE is not autocompleting code
or underlining errors, please configure it.

Select one:

• Visual Studio (Installed via Unity Hub)
• Visual Studio (Installed manually)
• VS Code
• JetBrains Rider
• Other/None

[somber sparrow]

im on chromebook

[rigid island]

how are you using unity on a chomebook..

[somber sparrow]

im coding on the linux terminal

the haters said i couldn't do it

[rigid island]

just cause you can doesn't mean you should

also how are you even running Unity on chromebook

[somber sparrow]

anyways idk how to fix that i think the two coroutines are conflicting because they are the same speed but because of the insights bool they shouldn't be able to be triggered at the same time

[wide dock]

Simply block any transitioning if there is already one in progress

[somber sparrow]

how?

[wide dock]

boolean or null check a Coroutine variable

[rigid island]

store coroutine inside variable

[somber sparrow]

huh ive never heard of hat

that

[rigid island]

StartCoroutine returns a Coroutine

[somber sparrow]

and i can check if a coroutine is already active?

[rigid island]

check if its not null

only assign it null when the coroutine is done

[somber sparrow]

what is the code for that?

[wide dock]

private Coroutine m_transition;

...
private void Update()
{
  ...
  if (m_transition == null)
  {
    m_transition = StartCoroutine(Foo());
  }
}

private IEnumerator Foo()
{
  ...
  m_transition = null;
}```

[rigid island]

that basically

[eager tide]

does anyone have a beer drinking script

[spring creek]

Probably.
What have you tried and what isn't working
It's gonna be unique to how your game works, so we of course can't just make code for you (and this is a place of learning, so that isn't allowed anyway)

[leaden ice]

no but I have written many scripts while drinking beer

[eager tide]

im trying to make consumable but i dont know how

[spring creek]

There are tons of ways

Depends

[leaden ice]

you'd have to define exactly what that means

does it just disappear

do you need an animation of the drtinking happening

does it have some effect on the character?

[spring creek]

It's as simple as reducing an int by one when you call Drink()

[leaden ice]

or increasing it

[spring creek]

And as complex as an entire inventory system with animations and side-effects

Well, could be even more complex than that

[eager tide]

like where you press on it with F and it drinks it with an animation

[spring creek]

Make an animation and play it when you press f

[rigid island]

interface <- consumable

[spring creek]

It's still to vague to help with imo

[leaden ice]

which part of this are you stuck on

basically - tackle it piece by piece

[eager tide]

Im trying to make it consumable like for it to dissapear when i press a button on it

[leaden ice]

yeah you said that, multiple times

[rigid island]

still unclear which part you are struggling with though or what you have so far

so many different ways to do this its hard to answer definitely , you have to break down each part into smaller parts and tackle it that way

eg .
how to Do F press Key?
how to detect objects?
how to run method when found object etc.

[spring creek]

Destroy(object)

[elfin tree]

Is there a way in a double switch case to disregard the second value, something like this?

[somber nacelle]

Just add another case line for the second case

[elfin tree]

I think I meant this

if that,s the right syntax

[leaden ice]

yes discard should work

[somber nacelle]

Ah yeah I misunderstood what you wanted. That is correct

[elfin tree]

thanks

[dense estuary]

How can I make an object instantiate at a position relative to its parent object. Currently my script is instantiating objects at the positions of detected objects instead of its position being dependant on the parent gameobject. Would I need to project on a plane to align them?

[latent latch]

If you set the parent when instantiating then its local positional values will be relative to the parent

[dense estuary]

Yes, but currently the object I am instantiating is spawning at the position of the object detected. Although the coordinates of the instance are relative to the parent. My goal is to make the instance position along the local x and y coordinates along a plane.

[quaint rock]

also if its not a child and you want to relative to a other object its just addation

otherObjectPos + relativeOffset

[latent latch]

Just zero out the local positional vector if you want it to spawn at the parent

even if you parent an object, if it already has an offset that just translate into a local offset

(another reason to make sure you prefabs don't have positional values)

[leaden ice]

use theParent.TransformPoint(desiredLocalPosition) to get the position to pass into Instantiate

[soft shard]

If your entire game is literally only 1 input and you dont plan on supporting other devices like controllers, then maybe not, if you do plan to have other inputs or those inputs should be used by different devices or you just want control over input through events instead of polling in Update, then it can be useful and has a lot of nice built in features like toggling, rebinding, activating after some time has been held, normalizing raw input values, input states, etc - though in general, I would say its far better than the default input system, and since its become stable, I have personally only used the "new" input system in every project no matter how small just due to how flexible and scalable it is to work with

[clear oriole]

Does anyone know how to access nvidias dlss mode in script

[cosmic rain]

Not sure if it's possibly to set directly, but you could probably define several hdrp assets that have different config of dlss and switch between them.

[ivory cove]

Hi! So I recently have been working on an action buffer system just so the player doesn't have to perfectly time back to back actions. This is what I have so far for my system. The only problem I have with it is it's precision. For example, when I input an attack in the middle, I want the 2nd attack to occur 0.3f after the first attack ends (or a value extremely close to 0.3f). However, currently the variance is around 0.01 I want the variance to be lower. I did some research and I've come to realize that Unity's Invoke method is not extremely precise. Is this true? If so, I was looking for some extremely timing precise alternatives!

[cosmic rain]

It's more about the update loop. User code executes at certain place in the update loop(frame). The next time it executes is on the next frame, so .016ms later assuming 60 fps. You can't really control precise execution within these 0.016ms and shouldn't need to, because it wouldn't really have any impact on the game.

[heady iris]

yes, you don't get ultra-precise timers

that would require unity to be able to interrupt whatever is happening to run your code

[cosmic rain]

Sure, there's stuff like late update too, but you don't know how far in the frame that is executed.

[heady iris]

don't use realtimeSinceStartup for gameplay purposes

[ivory cove]

would time.time work fine?

[heady iris]

Yes. That should be the default.

[ivory cove]

got it thank you!

Out of curiosity, when do you usually use realtimeSinceStartup if not for gameplay?

[heady iris]

I haven't used it recently at all

[ivory cove]

I see I see I'll do some research on that then xd

[cosmic rain]

In the docs they provide an example of using it for an fps counter

[latent latch]

public abstract class StorableHandler : MonoBehaviour { }

public abstract class StorableHandlerUI : MonoBehaviour
{
  StorableHandler storableHandler; //UIManager should have references to both the slots and the inventory (StorableHandler)
  List<SlotUI> slots;
  
  public Init()
  {
    //init slots and bind events
    slot.OnDroppedEvent += (fromIndex, toIndex)
        => OnDropCallback(fromIndex, toIndex);
  }

  protected void OnDropCallback(SlotUI slotFrom, SlotUI slotTo)
  {
    //how should I be getting the SlotFrom inventory reference?
  }
}

public class SlotUI : MonoBehaviour, IDragHandlers, IPointerHandlers
{
    //public StorableHandlerUI StorableHandlerUI <--- seems like I need some bi-direction reference binding
    public event Action<SlotUI, SlotUI> OnDroppedEvent;

    public virtual void OnDrop(PointerEventData eventData)
    {
        //We should swap objects between slots here, which also happens between different inventories
        foreach (Component component in eventData.pointerDrag.GetComponents<Component>())
        {
            if (component is SlotUI slotUI && slotUI.StorableHandlerUI != null)
            {
                OnDroppedEvent?.Invoke(slotUI, this);
                return;
            }
        }
    }
}```
So, I've been redoing a lot more inventory logic and there's one thing I'm trying to understand and it's how I should have stuff reference when it comes to decoupling objects. My idea is to just bind my slots by events, which works out well until I get to my method of object swapping between inventories/managers. The only way I can think of managing this is by giving each slot a bi-directional reference, but that feels like doing everything by events here becomes obsolete and I should just then call by method.

It works fine if I just swap between slots in the inventory itself, but it becomes a problem when introducing swapping between different inventories.

[cosmic rain]

I was recently working on an inventory-ui binding as well. The way I have it setup is that when I bind a certain inventory to ui, I subscribe the inventory ui to the actual inventory SlotChanged event as well as populate the UI inventory with InventorySlotUI elements that hold an index to the bound InventorySlot. So the Inventories communicate with each other by events/method calls, but the slots are controlled from the UI/actual inventory class respectively. The UI/actual slots only communicate with their ui/actual inventory respectively.

[royal wigeon]

I'm trying to make a setting menu where you can change the framerate, and I'm stuck on 2 buttons. How would I turn V-Sync on, and how would I also let the user select an "Uncapped" frame rate?

[little meadow]

targetFrameRate of 2 might be a tiny bit low 😛

[royal wigeon]

That just means I don't know what to set it.

[little meadow]

-1 is for uncapped (check the docs to confirm though) and there's a separate property for v-sync

[royal wigeon]

The docs don't really explain it though.

And I don't know how to set V-Sync, based off players moniters hertz

[little meadow]

okay... I'll give you links, but honestly this should be a quick google away

[royal wigeon]

I've tried for the past 20 minutes

[little meadow]

https://docs.unity3d.com/ScriptReference/Application-targetFrameRate.html - explains target frame rate and what -1 is and different platforms and everything
https://docs.unity3d.com/ScriptReference/QualitySettings-vSyncCount.html - v-sync

[royal wigeon]

It doesn't explain how to get the player's monitor's hertz though, and change that to a vSyncCount

[little meadow]

so, ready what vSyncCount does and what its values mean

[royal wigeon]

What are you asking?

[little meadow]

I'm not asking, you are 😛

I'm telling you to read the docs, they're explaining everything

[cosmic rain]

The second link does. Read it...

When you use vSyncCount, Unity calculates the target frame rate by dividing the platform's default target frame rate by the value of vSyncCount. For example, if the platform's default render rate is 60 fps and vSyncCount is 2, Unity tries to render the game at 30 frames per second.

[royal wigeon]

Wait so if a player has a monitor with hertz of 75, it will do (PlayerMonitorHertz / Vsynccount), which means if I set it to 1, then it will just use the players montior hertz right?

[cosmic rain]

Yes

[royal wigeon]

Thanks, for me reading complicated docs like that is kinda hard.

[cosmic rain]

This is far from being a complicated doc😬

If you find it hard to understand, break it down to parts and research the terms that you don't know.

It's a good way of learning.

[royal wigeon]

Well I saw here that is said "Platform", so I thought it meant the build's set frame rate, not the users.

[cosmic rain]

Platform referes to the device that they run the game on, i.e. windows PC, Linux, PS5, Android, etc...

[royal wigeon]

Thanks for that.

[dawn nebula]

Got this code snippet. Anyone know where Delta.Multiply is from? Is that a Unity thing?

[leaden ice]

Not a Unity thing

[dawn nebula]

Shit, then it could be…. Anything >_>

Well, hope the creator responds then.

[gusty aurora]

Probably just a negative exponential

v = v * (exp(- damp * dt))

[dense estuary]

I got the radar working mostly. Here

[dense estuary]

You mean like, a variable is only visible in unity if?

[heady iris]

This won't change whether the field is serialized, but NaughtyAttributes provides an attribute that conditionally shows the field in the inspector

[leaden ice]

If you mean conditionally shown in inspector, then yes

conditionally serialized, no

Anyway use NaughtyAttributes https://dbrizov.github.io/na-docs/attributes/meta_attributes/show_hide_if.html

[heady iris]

It's a third party asset.

[leaden ice]

editor plugin, yes

[heady iris]

It's the most practical way.

You could also write a custom editor.

[leaden ice]

Well you could write the custom property drawer the same way the plugin does

Unity Editor was made to be extensible

[heady iris]

oh right, just a custom property drawer (:

A custom editor for the entire component could make sense, though

in case you're unfamiliar:

• a property drawer defines how to draw a single property in the inspector
• a custom editor defines how to draw an entire component

[faint hornet]

Hey everyone I need help with coming up with a solution for:

Storing a connected “pattern” of connected tiles from a specific tile as the origin/pivot point.

And two, comparing that connected pattern to another identical connected pattern. (With or without rotational symmetry)

If someone has a solution or better yet a post or forum with a similar solution to study.

[leaden ice]

Just a List<Vector2Int> would do it for a basic solution

or HashSet of them

with two hashsets you know you can check if they're the same pattern with something like:

bool IsSamePattern(HashSet<Vector2Int> a, HashSet<Vector2Int> b) {
  return a.Count == b.Count && a.IsSubsetOf(b);
}```

[faint hornet]

How would this work exactly? I’m not understanding, even with the code?

[leaden ice]

as for rotational symmetry I suppose you could just make a function to rotate the set and then test for this pattern sameness for each orientation

[leaden ice]

it's just a set of positions

the code checks if the two sets contain exactly the same positions

the positions are assumed to be expressed as "local" positions from a pivot point

[faint hornet]

In relation to a chosen position though.. like imagine a group of water tiles that make up the shape of a lake.. now how to find the same lake in a different position even if the rotation is different

[leaden ice]

well let's not worry about the rotation being different yet

that can be solved later

start with just the first part of the problem

can ytou explain the use case more?

are we talking about just a pattern of positions?

Or like, specific tiles as in a Tilemap

if you mean a certain pattern of tiles in a tilemap, that's essentially identical to a substring text search problem

You could use standard algorithms for example https://en.wikipedia.org/wiki/Boyer–Moore_string-search_algorithm

[fervent furnace]

https://en.wikipedia.org/wiki/Graph_isomorphism

[faint hornet]

It’s for a tile based puzzle game.

Not a tile map. But am looking for a solution with a vector2int based..

Imagine for example a tile with the number “5”. That tile will need to contain 5 tiles including itself as a group of orthogonal connected tiles.

But if there are two “5” on the grid and I want the player to try to create identical groups. I needs to check that.

I suppose checking that is kinda easy but I want to engineer it in a way that is easily packaged to check for other characteristics like symmetry/color/etc

[fervent furnace]

you are not asking for pattern matching but search if there exists another subgraph in your tilemap which is same for some given subgraph
btw since it is tile based so you can use translation and rotation to see if two sets of vertices match.

[leaden ice]

that feels like a better answer than mine!

[faint hornet]

So yes, I’m struggling to convey what I’m looking for. But yes, if I already knew what this problem was called I would have googled it already.

And to respond to your answer, that link is so confusing to me lol

[leaden ice]

Are you familiar with graph theory yet?

You'll really want to be, if you're making a tile based... anything game

[faint hornet]

Not so much but reading it totally makes more sense now but I’m struggling on how to structure it in Unity.

[dense tusk]

well i figured out the problem. i whole thought i assigned references in the inspector, and lo, i did not

sometimes all you need is to come back with a fresh set of eyes

[faint hornet]

So reading more about this I would create a system that looks at a tile to the left (example) of center, checks to see if it is “connected” if it is, it stores a relation to it?

Wouldn’t this be over kill? Many tiles will contain the same data even though it’s not needed.. especially on an orthogonal grid..? @leaden ice

[cosmic rain]

Your actual graph should only contains the nodes that actually exist, so there shouldn't be redundant data.

[faint hornet]

Sure, but what about four tiles connect into a square. There are 8 different data points, right?

[cosmic rain]

4 tiles = 4 nodes

I don't see why they should be multiplied by 2

[faint hornet]

*2 because of relationships

[cosmic rain]

So are you counting relationships or nodes?

Each node would have several relationships(edges), but the total count of nodes wouldn't change.

[faint hornet]

Both but can’t it be simplified to something like 4

[cosmic rain]

Sure it can. A node is an object. It can have all kinds of properties, for example a list of edges. Each edge references 2 nodes that it connects.

Or you could have the edges as references to the connected nodes instead. The concept doesn't change.

[fervent furnace]

you can store all AABBs, offset, vertices count of all connected components, then check if one AABB X can be rotated and translated to another AABB Y and vertices count is the same, if yes, then try to map the vertices of X to Y by apply the same translation and rotation

[faint hornet]

In the “2x2 square” example. You can either save the data with relationships which is 2 per tile in example. But can’t you do a string like “bottom left to bottom right to top right to top left?

[faint hornet]

So how would I actually write code for that to work? I’m a beginner. What’s the process look like

[cosmic rain]

First of all, what does a graph has to do with a grid or tiles? Is it an indispensable part of the mechanic that you want to implement?

[faint hornet]

Ahhh I see, using translation of position.. I like this idea

[cosmic rain]

Or, I guess, I'm not entirely sure what the question is.

A graph is simple:

Graph
{
    Node[] nodes
}
Node
{
    Node[] neighbors/connectedNodes;
}

Then you can do whatever you want with it.

[faint hornet]

So checking the same amount of relations is the first check to prevent unnecessary calcs. Then if the same translate the pivot position to the other position, subtract the difference from all verts and compare… this works without symmetry though easily. Rotational seems complicated

[faint hornet]

Oh I see. Then it stacks like a tree.. how would you use rotational symmetry on nodes?

[faint hornet]

But I also need to know the direction right? If it has 2 connected nodes, I would need a check to see the direction of them yes? Or easier way

[cosmic rain]

I've no clue what a "rotational symmetry node" is.

[faint hornet]

No. rotational symmetry on the entire tree of nodes.. all nodes make up a body of orthogonal adjacent verts. I want to check if that “shape” is the same as the other shape with or without symmetry

[cosmic rain]

Sure, you could check the direction with connectedNode.position - this.position. maybe even cache it as a key/value of a dictionary that contains the neighbors.

[faint hornet]

I have an example game that performs this task that I want. Should I share that with you to help understand?

[cosmic rain]

Comparing graphs might be tricky.

[cosmic rain]

If it's a video, sure.

[faint hornet]

Are you aware of the pixel puzzle game “taiji”?

[cosmic rain]

Nope

[faint hornet]

https://youtu.be/Og4zPwrhb5w?feature=shared

Go to 36:00 flat.

Look at the shapes with a “/“ symbol. They are rotational symmetrical

@cosmic rain

@cosmic rain did you see it at 36min?

[cosmic rain]

Yes, but I don't really understand what's going. All I can say, that it if you need to match a certain pattern, perhaps just compare grids.

Or 2d arrays

[spring creek]

I see that they seem to be the SAME rotation, but it didn't look symmetrical to me..

It honestly looked Asymmetrical

Edit: I get it now

[faint hornet]

Ok quickly, look at the thumbnail of the video. See the Taiji logo? Blue L and white L? They are flipped and the “dot” in the L’s is rotational symmetrical.

Think of the dot as the pivot point. And then I need to store the shape relative to the pivot and then rotate the shape to see if It matches

[faint hornet]

Comparing grids makes no sense in this case.

[faint hornet]

they are rotated. and symetrical ( not symetrical in relation to the other, just symetrical). i know it's hard to see if you arent familiar with the game. but when he solves it, pause. the unshaded cells also count as their own shape as well. every symbol "/" has to be the same shape doesnt matter if its rotated

[spring creek]

See my edit. I already got it. I thought you meant the / themselves were rotated

[cosmic rain]

So they have an opposite rotation, but the same shape

[faint hornet]

well yes, more specifically they can have a 90, 180, -90 degree rotation and still count as long as the symbol in the same is relative to the rest of the shape

[cosmic rain]

You'd need to iterate the nodes and rotate their position relative to the pivot point.

[faint hornet]

ok. so? lol

[faint hornet]

awesome lol

i will draw a small example very quickly..

[spring creek]

So... comparing grids seems exactly like how to do it..

[faint hornet]

look at this. so both shapes are the same as a "shape" but also relative to their "dot"

@cosmic rain @spring creek @leaden ice

[cosmic rain]

Assuming you know the position of the node, you can rotate the grid and compare to the other shape.

Compare, rotate. Repeat 3 times, then compare again, if it was not equal in any of the instances, it's not equal.

[faint hornet]

rotate the whole grid? isnt their something better? what if this becomes more complex with more shapes and differnt types of dots. how can i save these shapes separatly and then rotate them when i want to compair them?

save just the shape and its data related to the dot.

[cosmic rain]

Well, you'd need some way to isolate a shape into a separate grid

[faint hornet]

i want to use Vector2Int if possible. not a grid. just positions and relations

[cosmic rain]

I mean, you have a grid there initially already.

Besides, using Vector2Int and disregarding the whole grid is gonna make things more complicated

It's definitely not impossible. With graphs you can do it the way you want, but I think tis gonna be more complex than just comparing grids.

[faint hornet]

wait, hold up, there has to be a way of doing it the way im talking about. imagine this grid with only the two dots. no colors.

when the player clicks "check" i want to scan the grid for all "dots" then start comparing if the shapes are the same. is there an easier way? i'm not understanding

[fervent furnace]

storing the relation mean you want to introduce one more mapping to form the edge, probably get thing worse since you still need to map those edges by translation and rotation

[faint hornet]

i dont understand

[cosmic rain]

You get each shape on your grid and put them on their own grid with the dot being the center. Then you rotate the grid and compare to another similar grid. The comparison is straightforward. Just loop through the grid and check if a position corresponds to a position of the other grid.

[faint hornet]

that makes sense that it would work, it just seems so not elegant lol seems like a "let me whip this up real fast" kinda solution. no disrespect lol

[cosmic rain]

The simplest solution is often the best solution

[fervent furnace]

eg if you have a shape (X means nothing)
BAA
XAX
and you want to store some relations eg position relative to B and you get 0,0 1,0 2,0 1,1
then you have another shape
XC
CB
XC
you get 0,-1 -1,0 0,0 0,1
you still need to apply translation and rotation to those "relation"

wait, can they match each other.....just in case the pivot is not the same

[faint hornet]

bro what is this BAA XAX stuff lol sounds educated but you are speaking to someone who clearly is not educated in this way. very difficult to follow you

[fervent furnace]

imagining the letters are inside a grid

[faint hornet]

so just put them in seperate grids with the pivot in center then start checking all 4 rotations of the grid until it either matches or none of them match?

[fervent furnace]

you can read my AABB solution.....should be slightly faster by filtering the AABB

[faint hornet]

where in the grid?

[faint hornet]

is AABB just some arbitrary combination of imaginary shape? i don't understand AABB in relation too? all i see is a two pair

[fervent furnace]

https://ychef.files.bbci.co.uk/624x351/p0102gs2.jpg
RRX
RRX
GGX
PGG
the leftmost 3 columns, X means empty again

https://stackoverflow.com/questions/22512319/what-is-aabb-collision-detection

[faint hornet]

ah ok i see what you mean now.

[faint hornet]

so back to this, now i don't understand the array of integers. can you explain that

[fervent furnace]

array of vector2
position relative to B
ie if you add the position of B and the element then you get the position of another tile

[faint hornet]

0,0 1,0 2,0 1,1
B is pivot, then B +1, then B + 2, etc?

[faint hornet]

and i=to answer this, they can not match if pivot is not the same ( even if the shape is identical)

[fervent furnace]

(0,0) , (1,0) , (2,0) , (1,1)
BEF
XGX
E position is position of B + (1,0)
F position is position of B + (2,0)

[faint hornet]

ok yes i understand. and how do you apply rotation to this array?

[faint hornet]

just to be completly sure:

G position is position B + (1,-1) ?

[fervent furnace]

rotate the vectors in the array
eg
XX AX
BA to BX , offset of A to B (1,0) will become (0,1)
yes, G position is position B + (1,-1), mb

[faint hornet]

ok so what if the shape is not rectangular instead looks like this:
X = empty
A = connected
P = pivot

XAAAP
XXAXX
XXXXX
----
PXXXX
AXXXX
AAXXX
AXXXX
XXXXX

thes two shapes are correct. imagine without X's

how to rotate this?

here without X's

AAAP
 A
----
P
A
A A
A```

[fervent furnace]

try all possible rotations (4), or use AABB (4,2) vs (2,4) then only two rotations
AAAP
XAXX
will be bounded by 4 x 2 (columns x row) AABB and
PX
AX
AA
AX
will be bounded by 2 x 4 AABB
i type X because letters seems to be aligned better

[faint hornet]

keep in mind, the shape to draw is up to the player.. so it could have a dimention of 6x2 or 9x3 (with some empty cells of course)

[faint hornet]

so i would first do a check to find all connected cells.. then get the dimentions from that. eg 3x5

i could then compair dimentions first, if they are differnt flip them and compair again.. if the same, then start cycling through the matrix?

[fervent furnace]

Yes

Though i would suggest you keep a list of AABB and each time you add/ remove tile then see if two or more connected component can be merged/ separated and merge/ split the AABB

[hollow escarp]

its giving me an error CS1503 any fixes?
using UnityEngine;

namespace GenshinImpactMovementSystem
{
public class Player : MonoBehaviour
{
private PlayerMovementStateMachine movementStateMachine;

    private void Awake()
    {
        movementStateMachine = new PlayerMovementStateMachine();
    }

    private void Start()
    {
        movementStateMachine.ChangeState (movementStateMachine.IdlingState)();
    }

    private void Update()
    {
        movementStateMachine.HandleInput();

        movementStateMachine.Update();
    }

    private void FixedUpdate()
    {
        movementStateMachine.PhysicsUpdate();
    }
}

}

[spring creek]

Where is it giving the error and what does the error say?

[spring creek]

Oh, and don't crosspost.
One channel per question
It is DEFINITELY not #archived-code-advanced 😸

[cosmic rain]

1. Share the !code properly. Refer to the bot message below.
2. Configure your ide properly. Refer to the next bot message.
3. Learn to read and understand the error message. No one remembers the errors by their code, but the message should provide enough info to fix the error.
4. The issue is a simple syntax error. If your ide is configured properly, you would see it underlined.

[tawny elk]

Posting code

📃 Large Code Blocks

Use 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 format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[cosmic rain]

!ide

[tawny elk]

💡 IDE Configuration

If your IDE is not autocompleting code
or underlining errors, please configure it.

Select one:

• Visual Studio (Installed via Unity Hub)
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[quartz folio]

#💻┃code-beginner

[cosmic rain]

Ah I see you fixed the syntax error(was basing my reply on the screenshot in the advanced channel).

[knotty sun]

please do not cross post

[autumn magnet]

ok

[glossy wave]

in ECS, how do I move an entity in its forward axis? LocalTransform.Translate is giving me trouble

[cosmic rain]

Well, what are the errors?

[cosmic rain]

Judging by the coloring, Forward is probably a method, so you need to call it properly.

[cosmic rain]

Yep. Looks like what I said