archived-code-general

[heady iris]

These can't be combined meaningfully. Bar | Baz is...just Buz

public enum MyEnum {
  Foo = 1,
  Bar = 2,
  Baz = 4,
  Buz = 8
}

In binary, a power of two is all zeroes, except for a single 1 somewhere

So Bar | Buz is 0010 | 0100, which is 0110

0110 is binary for the number 6

Note that there is no enum value with a value of 6

So, by default, you wouldn't see Bar, Buz or something

it'd just show up as an unknown enum value

https://learn.microsoft.com/en-us/dotnet/api/system.flagsattribute?view=net-7.0

The [Flags] attribute tells C# that you're combining enum values like this

When Unity sees an enum with that attribute, it gets displayed with that multi-select dropdown

rather than the default, which only lets you pick one enum value

[tired elk]

You may find examples that use bitshift too (1 << N, with N ranging from 0 to 31 i think). It's just another way to put the power of 2.

[heady iris]

https://unity.huh.how/info/bitmasks here's an example

[heady iris]

correct -- you can construct a layermask from a layer ID this way

1 << id is a power of 2

1 << 0 == 1
1 << 1 == 2
1 << 2 == 4
etc.

int is a 32-bit number, so you can hold 32 different powers of two

(well, one will be a negative number, but whatever)

so, tl;dr, you should do two things here

• assign a power of two to each enum value
• use the [System.Flags] attribute

And if you want to manually add an "everything" enum, you could indeed do something like ~0

There will be an "Everything" option in the inspector if you serialize a field of that enum type

But you might want to be able to do that from code, too

var noFooPlease = MyEnum.Everything & ~MyEnum.Foo;

[drifting root]

Understood, thanks a lot

[swift falcon]

What's the easiest way to poll the actions using the new input system?

I tried doing this ```cs

//INPUT CONTROLS
public PlayerInputActions _playerControlls;
public InputAction _attack;
public InputAction _jump;
public InputAction _interact;
public InputAction _dodge;
public InputAction _stomp;
public InputAction _kick;

private void Awake()
{
    _playerControlls = new PlayerInputActions();
}

private void OnEnable()
{
    _attack = _playerControlls.PlayerMap.Attack;
    _attack.Enable();
    _jump = _playerControlls.PlayerMap.Jump;
    _jump.Enable();
}
private void OnDisable()
{
    _attack.Disable();
    _jump.Disable();
}```

But all it does is creates this list of actions on my script.
I assumed it would use the already predefined actions in the input actions list.

[wintry crescent]

If I have objects Parent and its child Child, both have colliders and both have scripts that detect collisions, but only parent has a rigidbody, why do collisions from both colliders go to the script on Parent, instead of the collisions on the collider of the Parent object going to Parent, and collisions on the collider of the Child object going to Child?

[simple egret]

Input system is more event-oriented than polling-oriented. Add an event handler to your action to receive input:

_controls.Player.Jump.performed += OnJump;
// ... in the same class...
void OnJump(InputAction.CallbackContext context)
{
    Debug.Log("Received jump input");
}

You can even get values out of the context if you need to read say a vector value for mouse input or WASD movement

_moveVector = context.ReadValue<Vector2>();

[heady iris]

InputAction is a literal definition of an input action

You probably wanted an InputActionReference

This allows you to reference an input action from an input action asset

[gray mural]

How do I align this to left? There should be no spaces

public override void OnInspectorGUI()
{
    StretchablePanel script = (StretchablePanel)target;

    EditorGUILayout.BeginHorizontal();

    EditorGUIUtility.labelWidth = 50f;

    script.topStretch = EditorGUILayout.Toggle("Top", script.topStretch);
    script.bottomStretch = EditorGUILayout.Toggle("Bottom", script.bottomStretch);
    script.leftStretch = EditorGUILayout.Toggle("Left", script.leftStretch);
    script.rightStretch = EditorGUILayout.Toggle("Right", script.rightStretch);

    EditorGUILayout.EndHorizontal();

    EditorGUILayout.Space();

    //DrawDefaultInspector();

    if (GUI.changed)
        EditorUtility.SetDirty(script);
}

[heady iris]

e.g.:

[SerializeField] InputActionReference moveAction;

then, in OnEnable

moveAction.action.performed += DoTheMove;

where we defined DoTheMove as

void DoTheMove(InputAction.CallbackContext context) { }

If nothing actually enables that action, then you'd also want to enable it with moveAction.action.Enable();

In my game, I have a class whose sole job is to turn input action maps on and off

when you open the menu, it turns off the "gameplay" action map, for example

The PlayerInput component can also automatically do this for you. It will enable a single input action map automatically.

[swift falcon]

I'm trying to build a state system for character behavior, so using "OnJump" just adds more steps. I want to poll input directly in the switches.

[simple egret]

Okay so there's .WasPressedThisFrame() on the action

It's like the old GetKeyDown

[heady iris]

Ah, yes, that's how you would poll the action

along with ReadValue to read the value if it's that kind of action

[north cobalt]

How can i make something like this or simlier to it
https://twitter.com/i/status/1680169229096476674

**This is the video showing the game main mechanic, The Player control the Character 1 (Angel) move to the door, Then replay (the same moves that player gave to the game (inputs) ), Now the player control Character 2 (devil) trying to kill the Character 1 (angel)

How can i save and replay the same Characters states on the game
**

dietzribi (@dietzribi)

For this #screenshotsaturday here's a simple trailer for my #gmtk2023 entry UVSU!

Do you understand what's going on in the game?

✨️I'm working on an expanded version of it, wishlist on Steam below! ✨️

Likes

410

▶ Play video

Twitter · Jul 15, 2023, 10:55 AM

[swift falcon]

I was using this, but didn't seem to work.

[heady iris]

Is the action enabled?

[swift falcon]

It's in the code I linked above. It should be

[heady iris]

i would have player input come from a component that can either directly read inputs or replay a list of recorded inputs

so if you use a Vector2 move input and a button to jump, the list would store the move input at every tick, as well as whether or not you hit jump

note that this would require some determinism

a change in framerate could screw everything up

[simple egret]

It's like how Trackmania does it yeah, it replays input, instead of repositioning

[heady iris]

you could handle input and movement in FixedUpdate

[simple egret]

But yeah you cannot have randomness in the input processing in this case

[rocky helm]

Does TransformPoint/InverseTranformPoint use sqrt? Can't seem to find anything in the API.

[heady iris]

but you'd have to watch out for problems that come from doing this, like missing an input because your framerate is way higher than the fixed update rate

[leaden ice]

I don't think so - but why do you ask?

presumably it's just some matrix multiplication

[simple egret]

Source not available - it's extern so done on the C++ side

[heady iris]

As long as you record the values you actually used to control the player, it should be ok

[simple egret]

But yeah it would multiply the position with a matrix to transform to world space, and back to local space

[rocky helm]

Well, 1. I just like to know more about the function if I'm using it a lot and 2. this gives me a little more hope that I can solve one of my other problems without sqrt

[simple egret]

Matrix multiplication does not involve square roots

[leaden ice]

What's the other problem and why are you afraid of sqrt

[swift falcon]

I added debugging log, doesn't seem to trigger for some reason.

[leaden ice]

that means the code isn't running

so add more logs and find out why

[rocky helm]

sqrt is slow, and if I were to use it in my code then it would be ran a minimum of 100 times

due to loops

[leaden ice]

100 times per what

per frame?

[heady iris]

i think you should be more worried about the matrix math...

[rocky helm]

in 1 frame

[leaden ice]

the matrix math is almost certainly more expensive

it's many multiplication operations

[simple egret]

That's not a lot, 100 times per frame

[swift falcon]

I know why, I'm trying to fix that why right now.

[simple egret]

I thought you meant more like 10k

[heady iris]

guess what the entire transform system is doing constantly?

[rocky helm]

Yeah, but I'm trying to keep it lower as there is a really demanding function hapening on the same frame

[leaden ice]

This is really not something you should be thinking about much unless/until you've profiled the game and found that sqrt is a bottleneck

[heady iris]

i would start by trying to use the actions stored on that generated class

instead of the ones you copied into the input action field

[simple egret]

Optimize the really demending function then, not something else entirely

Spin up the profiler and see what uses the most resources

[heady iris]

optimization is not when you minimize the number of square roots

[rocky helm]

It would be part of it

[swift falcon]

is it not what I'm doing?

[heady iris]

use the profiler to identify hot spots. work on those

[heady iris]

Did you check that "Generate C# Class" option?

[swift falcon]

I generated the class using this list

[heady iris]

right

PlayerInputActions

it contains all of your input actions, and I'm pretty sure it also enables them for you

[swift falcon]

So I don't need to enable them manually?

[heady iris]

my suggestion is to just log _playerControlls.PlayerMap.Jump.IsPressed()

I don't use the "generate C# class" option myself, so I'm a little unfamiliar

[swift falcon]

I see. I'll try that

[north cobalt]

How can i do that

[north cobalt]

maby

[heady iris]

I'm a little fuzzy on how things get mapped from individual input sources to different input actions

I wonder if the original Jump action is getting the inputs, and your new copy isn't

[north cobalt]

I will be sure to watch out Thanks

[simple egret]

Usually when you tick the Generate class option, you create a new YourInputAsset(), enable it (or part of it), and subscribe to the events. All of it in the code, no drag-drop required

[north cobalt]

Thanks i will use FixedUpdate

[swift falcon]

I need to find out how to reference the original

the controls for WASD movement work fine using the original, non-polling method

[rocky helm]

Would taking Input from the player in FixedUpdate be considered bad practice?

[swift falcon]

I just know that fixed update should be left for physics stuff

[simple egret]

It straight up wouldn't work in some cases

[rocky helm]

oh

[simple egret]

As FixedUpdate runs on a different interval, you can have skips in input especially when you use GetKeyDown or WasPressedThisFrame

[north cobalt]

How can i be sure that i did it right and do you recommend a course or tutorial?

[simple egret]

Because the timing not "aligned" with Update

By the time you pressed the key, the frame could have ended before FixedUpdate gets run, swallowing the input you made

[heady iris]

Yeah, you shouldn't actually read the inputs there

My thought is to read them in Update, and then apply them in FixedUpdate

Then just record the values you applied in each FixedUpdate cycle.

Then, to replay the player's actions, just consult that list in FixedUpdate

So you wouldn't actually record the player's inputs, per se

but rather than values you got based on the player's inputs

[heady iris]

(this is very common for physics-based movement)

public struct InputFrame {
  public Vector2 move;
  public bool jump;
  public bool shoot;
}

you'd record something like this

[sweet egret]

Does anyone here know how to set up IK for a rigged arm? I’ve tried so many tutorials and they all don’t make sense. I don’t know what poles and homes are or how to set them up. I have a rigged model all ready so if anyone can help, I’d be very thankful

[placid island]

Is it possible to copy a component from one game object and add that to another game object?

[sweet egret]

Can you be a little more specific?

[ashen yoke]

you can serialize it and deserialize over new one

[sweet egret]

True

[ashen yoke]

JsonUtility should work in some cases

for others only manual copy methods

[placid island]

I want to add a trail renderer to a player without modify settings one by one

[ashen yoke]

make it a prefab, attach a clone

[sweet egret]

If it’s a set value, a prefab would keep it

However, if it’s a reference to a UI element or some gameobjects, they will not

But yes. .cache is right

[ashen yoke]

even without a prefab

you can just Instantiate an existing gameobject

[placid island]

But that component only should exists when the player enters an area, I want to dynamically add and remove it.

[ashen yoke]

which will do the copying for you

use a gameobject as a container for your component

even if its a single component, its fine

[sweet egret]

I don’t think you can remove components with code. If that is what you’re trying to say. You can disable one though

[ashen yoke]

you can remove

Destroy(comp)

[sweet egret]

Oh. I didn’t know that

[ashen yoke]

problem is recreating it afterwards

[sweet egret]

Lol. Thank you

[placid island]

Ah, I achieve that by disabling and enabling components.

Thank you

[sweet egret]

By the way, would you per-chance have the knowledge to set up IK? It is so confusing for me.

[ashen yoke]

barely touched mecanim ik, barely touched new rigging package

you have better luck in specialized channels

#🏃┃animation

[sweet egret]

Aah ok. Thank you so much. I didn’t know where to look

[drifting root]

Hello, can anyone advice me how can I make my cylinder rotate depending on the terrain under it?
I tried to do this through the Raycasting down from the center of object, but it didn't work well, as while cylinder was near some terrain's roughness it was starting to rapidly rotate (because raycast takes not the nearest point of the terrain - screenshot should explain my idea here). So I tried to do that calculating the closest point, but it still doesn't work quite well, as you can see from the video
This is a DOTS project and I am not sure I can ask this question here, but there was no help from the #1062393052863414313 , so maybe I can ask for help here. If I still cannot, I am sorry for offtop in this channel

[heady iris]

it looks like your raycast is just going to the wrong place entirely

it may be starting underground

[drifting root]

Are you about the video?

[heady iris]

Yes. The video shows the cylinder mostly just standing straight up.

[drifting root]

There is no usual Raycast. In the video CalculateDistance is used, which is calculating the closest point of terrain to the given
If I am not mistaken I CalculateDistance (or Raycast in the first try) from the center of the bottom of the cylinder: it is 2 units high, and I CalculateDistance (Raycast) from the cylinderTransform.position.y - 1f with unchanged x and z coordinates

Script also puts the cylinder.y to the RaycastHit.position.y + 1

[heady iris]

ah, I see

[drifting root]

So the idea is to make cylinder stand on the terrain without gravity simulation (which is not needed)

[heady iris]

You can just do several raycasts to get an average surface normal.

[ashen yoke]

afaik terrain api has a method that returns you interpolated normal of "curvature"

[heady iris]

that too -- I have never used it, but you should be able to ask it what the normal is

smearing that out over a few points will give you something less wobbly

[ashen yoke]

https://docs.unity3d.com/ScriptReference/TerrainData.GetInterpolatedNormal.html

https://docs.unity3d.com/ScriptReference/TerrainData.GetSteepness.html

lots of utility there

im just sharing what i remember, may be inapplicable

[drifting root]

Okay, I will try to get use of it. Thanks

[craggy lava]

so this is my player movement script right now, and it has the problem of moving faster when moving diagonally
anybody have a recommendation for a better movement script?

[heady iris]

Vector3.ClampMagnitude is your friend

or Vector2, in this case

https://unity.huh.how/programming/player-movement/diagonal-movement

this shows the problem. it suggests normalizing the vector, which is also fine, although it'll mean you can't move slowly with a joystick

[gray mural]

it is possible to disable all mouse interactions for all scripts except of current?

I want mouse not to interact with my own scripts and UI Scrollbars when I am stretching my panel with StretchablePanel script using mouse

[drifting root]

Unfortunately due to the process of translating terrain to the Entity, I can only use collider of that terrain. So terrainData property is not available :(

[heady iris]

i wonder if you could just precompute a smoothed normal map

[ashen yoke]

i use a hacky way of just moving around a rect transform that blocks all events

[heady iris]

you'd make a 1024x1024 array of vectors, basically

[gray mural]

I am sorry, I don't understand it, could you explain what it means?

[ashen yoke]

transform.SetSiblingIndex(stretchablePanel.GetSiblingIndex()-1)

a transparent Image, that blocks all raycasts

[gray mural]

it's not full screen

maybe I have to spawn transparent image under stretchablePanel?

[ashen yoke]

yes

thats what i do

not elegant, but works

[drifting root]

Hm, that sounds not so bad. Thanks for the idea
But I will try to look a little more for other options
Anyway thank you very much

[gray mural]

no more elegant options?

[ashen yoke]

i can imagine you could - control all canvases raycast state

use/add EventSystem isolation contexts

[gray mural]

I don't know what that is, but sounds like something that can destroy my game's performance

[ashen yoke]

i dont see anything of sorts in event system from a glance

but adding something like that should be trivial

i dont see how it should tank performance

[cold parrot]

is this an xyproblem maybe?

[gray mural]

no ?

[ashen yoke]

dont think so, pretty common thing

isolate ui elements from the background

[gray mural]

so do you mean to create a list of references to raycastTarget bools and control them using a method?

[cold parrot]

what about designing around a event system current object check?

[gray mural]

a custom class that inherits from event system?

[ashen yoke]

you can directly modify event system if you drop it into the project

ugui is opensource

[gray mural]

oh, didn't know it

[ashen yoke]

https://github.com/Unity-Technologies/uGUI/blob/5ab4c0fee7cd5b3267672d877ec4051da525913c/UnityEngine.UI/EventSystem/InputModules/StandaloneInputModule.cs#L277

something like "if object is not part of the root set as isolation context, return"

it may be much simpler than that, i didnt delve into source

[gray mural]

I have InputSystemUIInputModule...

oh, I have found it

I wonder why it's all grey

also I cannot edit it

[oak sierra]

Quick question... I have a script that generates noisemaps from a scriptable object. I'd like to bake these prior to runtime. Is there a system that I can leverage in unity to do this--or would I just be writing a on serialization hook to create an asset file?

[cold parrot]

You can save these maps as textures

[tall pewter]

Ok I understand your point and I respect your opinion, but I disagree with you, I have bought several assets and you are right that if some assets are not of good quality, but most of the assets are of very good quality, renowned games have used assets from Unity Asset Store, I consider it a good solution and it depends on the user if it suits their needs or not.

To be honest, some of the assets that I am currently using have saved me months of work because they simplify a complex task, then I have entered to see how its code is structured and it is more than enough to understand how the tool works and to be able to extend it to my liking .

Although from the beginning what I really wanted to know was which of the two assets that I mentioned could be more useful for my type of project, I appreciate your analysis of the asset store, but I will continue buying and supporting people who really help other developers to make your job more efficient. I myself have created tools for other languages in which I am a senior and have helped many people.

[oak sierra]

Right--I guess I'm wondering where the appropriate place to put that code would be. I could use ISerializationCallbackReceiver.OnBeforeSerialize() to bake. But I'd also want to find a solution to detect if the asset changed, so I'm not redundantly baking.

I'm wondering if there is some sort of prebuilt system for a baking step in Unity that I should be leveraging?

[cold parrot]

NodeCanvas is a good starting point, well maintained for a long time. It’s primarily worth it for the great UX vs other assets. But you might outgrow it if you have non-generic needs. Once you figure them out, NC will have given you a good understanding what you need to be different.

Most of the behavior assets in the store have missed (or never taken) the train that marries FSMs and BehaviorTrees, which is a necessary evolution for managing complexity. FSMs are great for transitions/cancellations/fallbacks, BTs for describing what happens over time.

Whichever path one takes, diy or library, good (practical) AI architecture takes a few iterations to get it right in your head.

[thick terrace]

how about AssetsModifiedProcessor? you can listen for your source asset to change then rebake the texture

[oak sierra]

@thick terrace This looks like it has potential--thank you!

[green oyster]

someone clarify

does it fully run the addnewstagepart code?

before moving onto the next method

or it will call that first method, and then move to next line, and call that one too

[oak sierra]

It will fully run AddNewStagePart--unless AddNewStagePart is a coroutine

[green oyster]

ok thanks

[leaden ice]

test it with Debug.Log 😉

[lavish ridge]

Hey guys! I recently exported my game to Webgl, which works fine in the unity editor, and, when I load in to my scene, all I see is pink.

The console says that it couldn't find the shaded Unlit/Texture and that shader is null. What do I do?

[undone mesa]

Hi guys! I'm trying to apply a velocity to my bullet, but I can't understand how it works... Could someone explain to me? Thanks! 😄

My code:

bullet.GetComponent<Rigidbody>().velocity = Quaternion.AngleAxis(Random.Range(-3, 3), Vector3.up) * cam.transform.rotation.eulerAngles * bulletSpeed;

[gray mural]

private (Transform transform, int siblingIndex) activeUI;

//
Destroy(activeUI.transform.gameObject);

does it work this way or is it just a copy?

[shell scarab]

Should work if you add .Item1. like this:

activeUI.Item1.transform.gameObject;

although that's a value type tuple you're making with the ()s

[gray mural]

it doesn't have Item1

Item1 is renamed to transform

and Item2 to siblingIndex

[shell scarab]

my bad, yea i works

[lavish ridge]

?

[shell scarab]

TIL you can rename Item1 and Item2

[quaint rock]

yeah that will work and since its a value tuple everytime you reassing it, its a copy

[shell scarab]

doesn't copy the gameobject tho, the copy of the tuple still has a reference to the same gameobject

[gray mural]

wait, you say it's a copy, so it won't destroy the original gameObject

[shell scarab]

it will

[shell scarab]

^

[quaint rock]

it coppies the reference

[shell scarab]

still points to the original game object

[quaint rock]

gameobject is a reference type the varaible for one, is just a pointer

a copy of a pointer, still points to the same object

[shell scarab]

also AFAIK it only copies the tuple if you pass it as a variable, they're passing the referenced gameobject

[quaint rock]

though if you are using these same 2 types grouped togeather often

i would be tempted to just write a named struct type for it

[quaint rock]

yeah it only works with the () syntax but you can provide names

[lavish ridge]

Anyone ever have this issue?

[shell scarab]

awesome

[gray mural]

yes, you're right, it works like you have said

thank u

[quaint rock]

yeah because GameObject its a reference type

anything that is a class is a reference type

primitives except for string and structs are value types

[gray mural]

oh, my bad, I have folgot that it doesn't depend on tuple

so if it was a struct, it wouldn't work

[shell scarab]

well you're setting the velocity, not adding. But

Quaternion.AngleAxis(x, y) creates a rotation x angles around y axis, so you're rotating randomly between -3 and 3 around the Vector3.up axis.

then you're multiplying that quaternion by a vector which is the angles of the camera's rotation, which rotates that vector (not entirely sure why you're doing this, idk if that leads to a desired result)

then you're multiplying that vector by a presumably float that represents a speed

[quaint rock]

would still work if its a struct

[gray mural]

no?

struct isn't a reference type

it's a value type

[quaint rock]

since its a gameobject contained in it

both value tuple and struct are value types

[gray mural]

no, I mean if I had a struct instead of the GameObject

[quaint rock]

oh yeah then you would jsut have a new copy of that struct

[gray mural]

I have messed up with a value and reference types even though I knew it

[shell scarab]

unless you can pass with the ref or in keyword

[gray mural]

I forgot that if tuple is a value type, it doesn't matter mean it stores copies of classes

it means tuple itself is a value type

[quaint rock]

good example of those behaviour is Vector3 if you do a.position = b.position assuming a and b are transforms. you are not making them both the exact same vector but just making a's position a copy of b's position

[shell scarab]

also the tuple itself will only copy if you try to assign another variable to that same tuple, such as passing it to a method

[frosty surge]

Does anybody know what is the correct way to make an android game automatically goes to pause screen when leaving the game in background then going back to it?

[gray mural]

yes, that explains the difference between a class and a struct

[shell scarab]

https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnApplicationFocus.html
Does this work for android?

[quaint rock]

like a reference is just a address really, like the address of my house is 42, say someone copies that number down somewhere else, well it still equals 42 and you could find my house with it

[shell scarab]

you can try setting the compression format to Disabled. Don't know if it will fix that problem but it fixes some other problems so worth a try.

in the player settings

[drifting root]

Can someone please explain how Unity sets the pivot to come 3d object? As I understood, I cannot change the pivot and the only way is to create an empty parent object as a new pivot? Is it true? It seems to me a little dirty, when you need to change that pivot for hundreds of such objects (units in RTS)

[green oyster]

as far as i know thats correct

[drifting root]

:(

[heady iris]

Why do you need to change so many pivots?

[knotty sun]

The pivot point is set in the modelling program not in Unity

[drifting root]

I want my units to have pivot near the terrain so it the calculations are easier

[heady iris]

is the origin of these models not placed at the feet?

[drifting root]

Oh, that's good. So it just imports pivot from blender for example, right?

[knotty sun]

yes

[shell scarab]

(0, 0, 0) will be the origin unless changed in your modeling program

[drifting root]

At the moment I am using Unity`s meshes, and it is in the center of the cube/cylinder/sphere

[heady iris]

ah, then yes

You usually want to make the model a child of something else anyway, though

Unit
  - Model
  - SomeOtherThing

this makes it easier to replace models down the road, for example

[shell scarab]

if you're using unity's meshes, in your unit prefab make an empty parent and position the object accordingly

[drifting root]

Why it will be easier in this case?

[heady iris]

well, in this case, it'll let you offset the model correctly

[shell scarab]

also make sure this is set to pivot, top left of the editor window:

or else it would still select center of the cube if set to center (default) when moving things in unity

[heady iris]

note that this has no effect on how the game actually works. it just determines where your editor gizmo goes.

[shell scarab]

This. Still gets confusing for new people tho so i always recommend it

[drifting root]

Understood, thanks
However one more question: if I set this to the center, then when I change the position of the child (camera for example), the position of parent (empty object just as a pivot) changes as well. Why?

Oh, maybe it is not the parent's position changes, but gizmo's position changes

But still parent's gizmo is glued to the camera from that moment for some reason. I thought it should be still in its own coordinates?

[summer oar]

Doing an optimization and refactoring pass over a fork of an old volumetric lighting technique for the built-in RP. Saw this code in it.

material.SetInt("_SampleCount", sampleCount);
material.SetVector("_NoiseVelocity", new Vector4(noiseVelocity.x, noiseVelocity.y) * noiseScale);
material.SetVector("_NoiseData", new Vector4(noiseScale, noiseIntensity, noiseIntensityOffset));
material.SetVector("_MieG", new Vector4(1 - (mieG * mieG), 1 + (mieG * mieG), 2 * mieG, 1.0f / (4.0f * Mathf.PI)));
material.SetVector("_VolumetricLight", new Vector4(scatteringCoef, extinctionCoef, light.range, 1.0f - skyboxExtinctionCoef));

Wondering if there's a speed benefit from switching to property IDs instead of property names, or if it's not worth doing so

[heady iris]

Select the parent object with the scene view set to Pivot, not Center

the gizmo will always be exactly at the position of the parent object

[shell scarab]

also if you change the child position and select the child, the child's pivot would be different. You need to change the parent's position and select the parent.

Clicking on the cube in the scene view would select the cube (the child), not the parent, so you'll still see the cube's pivot.

[drifting root]

Okay, got it
But one last question, which may be a little silly: why I cannot set different settings for child and parent? For example set pivot and global for the parent, but center and local for the child (as I understand Toggle Tool Handle Rotation's choice affects not the editor's gizmo, but how it rotates the object (around the parent if local and around its own center if global))

[shell scarab]

it's just changing where the pivot is displayed to you, it's not a gameobject setting

[heady iris]

as I said earlier, they do nothing to how the game works

[drifting root]

But when I change global to local, it change the way it rotates the object

[heady iris]

it changes how your editor gizmos work

[shell scarab]

yes, because you're rotating it on the global axis not the local axis

[heady iris]

I leave mine on Pivot and Local most of the game

[shell scarab]

same

[heady iris]

sometimes switching to Global

I do not like Center. It just confuses me most of the time

[drifting root]

Oh, that was a mistake, sorry. Saw something that wasn't in fact

Thanks a lot

[gilded ocean]

Hello can someone tell me a free way how to filter bad words in my game?

[leaden ice]

I did this at work once and we just found a dictionary of bad words and made sure we didn't include any of them.

It's going to be a poor system though that excludes things like the name "Hassan"

Turns out it's not an easy problem to solve

[ember cape]

How do you accomplish that because I am having a hard time figuring it out.
Basically what I have going on right now is my Bootstrap scene contains a listener for when scenes are loaded:

        private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
        {
            if (mode == LoadSceneMode.Additive)
            {
                foreach (GameObject gameObject in scene.GetRootGameObjects())
                {
                    //Debug.Log(gameObject.name);
                    if (gameObject.name == "xyz") do abc...
                }
            }
        }

And from there you loop through game objects and add the required references when need be?

[green oyster]

if(swearWordList.Contains(userWord)){ ban the user }

[knotty sun]

https://www.moderatecontent.com/documentation/badwords

[shell scarab]

I do Object.FindObjectOfType

https://docs.unity3d.com/ScriptReference/Object.FindObjectOfType.html

[heady iris]

Oh man this is a complicated problem

[heady iris]

yeah, you can try to fix this with a whitelist, but then you just get lost in the weeds

[earnest gyro]

what is new Vector3() without arguments? I'm trying to initialize a dictionary with values, but I want it to start "empty" and fill up as entities "learn" about the world. Currently I've got if _ant.Memory.nearestResource[ResourceType.Food] != null where _ant.Memory.nearestResource[ResourceType.Food] is initialized to new Vector3().

But I think it isn't working

[leaden ice]

It's just a vector with all 0s

[earnest gyro]

Bleh

[leaden ice]

Vector3 cannot be null

it is a struct

structs cannot be null

[earnest gyro]

Gotcha

[shell scarab]

dk what you're doing but if you make it nullable it can be:

Vector3? nullableVector;

[leaden ice]

if it's a dictionary simply don't add the key until there's a value there

there's no reason to put an empty/null value in

[earnest gyro]

yeah, that'll work I guess

I find ContainsKey a little ugly.

[leaden ice]

just make sure you use myDict.TryGetValue whenever you read it

don't use containsKey

use TryGetValue

[earnest gyro]

Is there a reason?

[leaden ice]

it's cleaner

and faster

[earnest gyro]

TryGet is an if and a get all in one?

[leaden ice]

yes

[earnest gyro]

How/why is it faster?

[leaden ice]

if (myDict.TryGetValue(key, out val)) {
  val.Whatever();
}
else {
  // not present
}```

it's faster because it doesn't duplicate the get operation / key check

[earnest gyro]

Ah, sure

Thanks!

[leaden ice]

compare this will the nullable solution:

var val = myDict[key];
if (val.HasValue) {
  val.Value.Whatever();
}
else {
  // not present
}```
Very similar I guess but using TryGet will be a memory savings in two ways:
- no use of memory before there's a value present
- the values will be smaller since they don't have the extra storage space associated with the nullable wrapper

Also the code is cleaner since you directly can work with the Vector3 instead of having to deal with the nullable

Just my $0.02

[earnest gyro]

Yeah I agree

Next question: this dictionary, nearestResource is meant to store the Vector3 of the nearest resource, indexed by the enum ResourceType. It's possible for the nearest resource to get depleted, in which case the nearest resource of that type shouldn't exist anymore. It'd be best, then, to just delete the key/value pair instead of nulling the value?

[leaden ice]

yes

[earnest gyro]

word

[leaden ice]

it's also not possible to null the value

😉

[earnest gyro]

that's what it sounds like lol

[leaden ice]

unless you're using a nullable type

but that's just kinda... asking for a memory leak tbh

[ember cape]

T Object The first active loaded object that matches the specified type. It returns null if no Object matches the type.
regardless of scenes?
Because I was under the impression that if I run that from a script in my main scene, I wouldn't be able to get stuff from my sub-scene(s)

[heady iris]

be careful with the phrasing here

"subscenes" are an ECS-specific concept

you're just doing additive scene loading, right?

[ember cape]

oops, I just meant scenes which I load additively

[leaden ice]

it searches all GameObjects in the game world, regardless of scene

notice it's just a static method - The call is not actually associated with any particular object

[heady iris]

then yes, it searches everywhere

this came up yesterday

you might get punked if you run it before the other scenes finish loading

hey, small problem: I need to figure out the yaw and pitch that would give me a certain look vector

[ember cape]

But if I listen to SceneManager.sceneLoaded and run it there, it ensures that the scene in question is loaded I assume?

[shell scarab]

another way you could do it is that every time a scene is loaded call a static event and pass itself into the event. All scene managers could subscribe to the event in awake and receive the global manager.

Not sure when the scene loaded callback is called in relation to the awake/start methods however.

[heady iris]

I guess I should project the vector onto two planes and calculate the angle between them and...

hm

yaw seems obvious: project onto the XZ plane and then get the signed angle between it and Vector3.forward

[shell scarab]

Yet another way to do it is to make the global manager a singleton and just reference the static instance in your scene managers

[leaden ice]

Something like:

float pitch = Vector3.SignedAngle(Vector3.forward, lookVector, Vector3.right);
float yaw = Vector3.SignedAngle(Vector3.forward, lookVector, Vector3.up);```?

[heady iris]

gah, internet died

[heady iris]

Went that be too high? The yaw angle will be increased by the pitch

[leaden ice]

not sure I follow

SignedAngle uses an axis parameter and the vectors are basically projected on that plane

[heady iris]

Oh, they do get projected?

[ember cape]

that's what I was going for

[shell scarab]

should work then

[heady iris]

The angle returned is the angle of rotation from the first vector to the second, when treating these first two vector inputs as directions. These two vectors also define the plane of rotation, meaning they are parallel to the plane. This means the axis of rotation around which the angle is calculated is the cross product of the first and second vectors (and not the 3rd "axis" parameter).

dunno

[leaden ice]

You might need to change the axis for your pitch calculation based on the yaw though

e.g.

float yaw = Vector3.SignedAngle(Vector3.forward, lookVector, Vector3.up);
float pitch = Vector3.SignedAngle(Quaternion.AngleAxis(yaw, Vector3.up) * Vector3.forward, lookVector, Quaternion.AngleAxis(yaw, Vector3.up) * Vector3.right);```

[heady iris]

i think the axis just determines the sign

[leaden ice]

I have no idea why they changed it but the old documentation has a very nice analogy in it:
https://docs.unity3d.com/2020.2/Documentation/ScriptReference/Vector3.SignedAngle.html

If you imagine the from and to vectors as lines on a piece of paper, both originating from the same point, then the axis vector would point up out of the paper. The measured angle between the two vectors would be positive in a clockwise direction and negative in an anti-clockwise direction.

[heady iris]

The motivation here is to get a spectator camera (which uses yaw and pitch) aligned with whatever viewpoint you had before resuming spectator mode

[green oyster]

I got this spline, it starts of with 2 points, i get the last points REAL WORLD pos, and i add a new point to this spline, to the same world pos as the last one, so in theory the new points should always be at same place as the second point, but this does not happen, instead they somehow are getting further apart and it makes no sense?

          for (int i = 0; i < sceneCreation.drawSetting.amountOfPoints; i++){
               Vector3 newPointWorldPos = shapeController.transform.TransformPoint(spline.GetPosition(spline.GetPointCount() - 1));
               //newPointWorldPos += new Vector3(lengthBetweenPoints, 0f, 0f);
               print(newPointWorldPos);
               spline.InsertPointAt(spline.GetPointCount(), newPointWorldPos);

im not adding anything to the new points position

so i dont understand why the new points would be in different places

[heady iris]

i was struggling for several minutes with it refusing to calculate anything non-zero

...i was using the brain's transform

[leaden ice]

this:
Vector3 newPointWorldPos = shapeController.transform.TransformPoint(spline.GetPosition(spline.GetPointCount() - 1));
Implies that the positions are in local space but this:
spline.InsertPointAt(spline.GetPointCount(), newPointWorldPos); is inserting a world space position

[heady iris]

(the brain is not the thing that rotates!)

[green oyster]

well spline.GetPosition(spline.GetPointCount() - 1) ---> gets position of point in local space

[leaden ice]

yes

[green oyster]

but after i did the TransformPoint of it

it should be in world place converted

[leaden ice]

so wouldn't it follow that insertion also uses local space?

WHy would you get in local but insert a world space point?

Vector3 lastPoint = spline.GetPosition(spline.GetPointCount() - 1);
spline.InsertPointAt(spline.GetPointCount(), lastPoint);``` It should be this simple, no?

[heady iris]

Yeah. I get the wrong yaw if I don't first project the look vector onto the XZ plane.

[green oyster]

well because i looked at unitys code and as u saw here

they converted mouse point to world pos, and then passed it into the insertion

[leaden ice]

but that's not a position they got from the spline

in that example they're just using an object at the origin with uniform scaling so world space and local space are the same

they're sidestepping the issue

you can't sidestep the issue

[heady iris]

i've done exactly this before :p

i am now pointing in various directions. i love vectors.

[green oyster]

hmm im not exactly sure i get this, coz like the spline point that you get is local space, and transfrompoint should simply get the world pos of that? but what you said did fix the issue tho, thanks!

[heady iris]

yes, because you need local space, not world space

it won't worked in that code above because world-space and local-space are equivalent if you have no parent and your transform is the default

0 position, no rotation, 1 scale

[green oyster]

So the mouse screen position to world point was the same as the spline local space?

[heady iris]

Yes, because the two spaces were equivalent

transform.InverseTransformPoint goes from world-space to local-space

it would be used if the spline weren't guaranteed to have a default transform

[shell scarab]

I haven't worked on a 2D project in quite some time, but I seem to remember this working? I feel like that's how I've always done it.

private void FixedUpdate()
{
  Vector2 vel = rb2d.velocity;
  /*rb2d.velocity =*/ Vector2.SmoothDamp(rb2d.velocity, moveVector * movementSpeed, ref vel, movementDelay, maxSpeed, Time.fixedDeltaTime);
  rb2d.velocity = vel;
}

[heady iris]

sure, that'll smooth-damp your velocity towards the desired velocity vector

[shell scarab]

but it doesn't D:

these values:

[heady iris]

oh wait, you do nothing with the result

[heady iris]

oh I see what you did

[shell scarab]

yea, i seem to remember the ref value assigned back to the rb2d's velocity would work but it seems not

[heady iris]

SmoothDamp takes several parameters:

• the value to go from
• the value to go to
• a ref parameter for the velocity (how quickly the value changes)
• the time taken to move

The third parameter is how quickly the value is changing

It's not the value

[shell scarab]

not the 4th value?

[heady iris]

Forget entirely about how you're trying to mess with a rigidbody's velocity

the terms are overlapping here

currentVelocity is how quickly the smooth damp is changing your value right now

It's passed by ref so that it can be updated by the SmoothDamp method

the method returns the updated value

[shell scarab]

ohhh. Ok, in that case it should be a field value. Documentation is really not clear on that.

[heady iris]

You're getting confused because your value is, itself, a velocity

[heady iris]

It has memory, unlike things like Lerp and MoveTowards

[shell scarab]

yea I get it now

i feel like if the docs said "The current velocity of the function, this value is modified by the function every time you call it." or something instead of "The current velocity, this value is modified by the function every time you call it." it would be more clear.

or at least add in the description "currentVelocity should be a field value" or something. There's no example on how to use D:

[heady iris]

isn't it right there https://docs.unity3d.com/ScriptReference/Vector3.SmoothDamp.html

[shell scarab]

in Vector3.SmoothDamp D: of course they would

I was looking at Vector2.SmoothDamp

[heady iris]

ah

oh yeah that is just missing

[shell scarab]

smh

[heady iris]

i submitted feedback

[robust dome]

any freaking channel where one can ask blender related things?

[somber nacelle]

there's a whole !blender discord

[tawny elk]

A supportive community for Blender artists of all levels. Share your work, ask for help, and learn from others! https://discord.com/invite/blender

[robust dome]

yep i know, anyways ty

[somber nacelle]

great! then you know where your blender related questions belong

[shell scarab]

also@heady iris another thing,

Approximately the time it will take to reach the target. A smaller value will reach the target faster.
but when 0 doesn't move? 🤔 for 4th parameter

[heady iris]

i wouldn't be surprised if it broke

although, it looks like smoothTime is clamped from below to like 0.0001f

perhaps you mean the 5th value?

that's the maximum speed to move at

[shell scarab]

no i checked cus i thought i was changing wrong value

[heady iris]

show your code.

[shell scarab]

seems to only happen when Time.fixedDeltaTime is supplied to it

   private void FixedUpdate()
    {
        rb2d.velocity = Vector2.SmoothDamp(rb2d.velocity, moveVector * movementSpeed, ref moveSmoothVel, movementDelay, maxSpeed, Time.fixedDeltaTime);
    }

well when i tested it maxSpeed was at 100

[heady iris]

ah

it calculates maxSpeed * smoothTime at one point

i dunno what the rest is doing; i'm just looking at what VSCode can give me

this happens after clamping smoothTime to 0.0001f, but it still might be so small you get weird results

[shell scarab]

actually it works but it's so bizzar man. if I set max speed to 1 thousand it works

[heady iris]

yeah, because of that clamping

[shell scarab]

sorry, 10 thousand

[heady iris]

you can really just make maxSpeed be infinity

that's the default

float.Infinity

er

Mathf.Infinity

[shell scarab]

Mathf.Infinity

yea i am

just weird

[heady iris]

this value gets squared, so it might get very small

[shell scarab]

I was assuming maxSpeed was how fast the ref velocity parameter would be allowed to change

like measuring its magnitude or something

[heady iris]

That is correct.

at least, it's the effect it has

I dunno how it interacts with the rest of the calculations exactly

[shell scarab]

so feel like it should still move even when max speed is 100 and smoothTime is 0

[heady iris]

oh wait, not how fast it could change

it's just how big it can be

[shell scarab]

yea

oh well, just a weird quirck ig

[tall pewter]

Thank you very much for your answer.

[foggy pasture]

yo, could anyone explain how this is possible

[leaden ice]

DO you have Collapse turned on in your console window?

[foggy pasture]

that was indeed the case

i'm a little stupid

man you are crazy

you helped me like six months ago too

[shell scarab]

don't need help, just sharing the sadness

[heady iris]

ref fields are a pretty weird thing to use

[cold parrot]

I find them useful for functional code with lots of delegates and higher order functions.

[heady iris]

ref fields are solely used in ref structs

are you thinking of something else?

[cold parrot]

Indeed

[swift falcon]

ok, so im kinda stuck with something i cant seem to find an answer to with google, soooo, is it possible to create a undetermined amount of tmp text sprites at runtime? or some other neat way of adding them to tmp text? as im currently using 4 raw images outside of the text which are fun and all, but if the book im loading contains more then 4 images in that chapter, i cant display those.

[rigid island]

Uhh anyone know why the ContextMenuItem doesn't work ? I literally copied it from the docs and its not appearing.. The ContextMenu does work though.

 [ContextMenuItem("ResetName", nameof(ResetPlayerName))]
    public string playername = "";

    void ResetPlayerName()
    {
        playername = "";
    }

    [ContextMenu("SumMethod")]
    void SumMethod() { }```

[leaden ice]

Is it supposed to go on the method?

[rigid island]

there are two versions, one is for member vars

Ohhh oops.. duhh need to right click the Field that has the ContextMenuItem... Makes sense 😛

[leaden ice]

Ah yeah I assumed you'd done that in the screenshot 👍

[rigid island]

Use this attribute to add a context menu to a field that calls a named method.
reading skill issue 😅
https://docs.unity3d.com/ScriptReference/ContextMenuItemAttribute.html

[mystic ferry]

I had a problem I was stuck on for hours, I had 3 different attempted solutions and when I went to think of how to word the question I was gonna post here, I revisited one of my attempted solutions to find it worked perfectly

game dev is hard.

it's crazy how you can try to solve something, have absolutely no idea how it didn't work, and then when you try the solution again it magically works and you have no idea why it didn't work before

[fallen garnet]

😶

[spring creek]

That's outside a method

And referencing something that isn't static (positions change)

So it needs to be inside a method

You may want to do:

private Vector2 temp;

At the top, outside any method.

Then at the start of MoveBox, probably just after the if check, do:

temp = transform.position;

And I would rename that variable to like... currentPosition or something

[fallen garnet]

But the box doesn't move

[spring creek]

Completely separate issue.

You are changing Speed_Move is set after using it to add to temp.x, for one thing.

Also, both the if and else if multiply by -1. Is that intended?

What is speed_move set to? 0 times 1 or -1 is still 0

[fallen garnet]

I tried making it a Multiply by , which makes the box move very fast

[tame urchin]

Is there a callback I can call for when a ScriptableObject .asset file is first created? Like MonoBehavior.Reset() ?

[soft shard]

Maybe your looking for one of the functions under "Messages"? https://docs.unity3d.com/ScriptReference/ScriptableObject.html

[tame urchin]

Hmm yeah. It looks like ScriptableObject.Reset() works fine

[ruby nacelle]

Hey, I'm trying to add Acceleration and Deceleration to smooth the movement of my character, but the values are stuck on applying force to only the right side of the characters, maybe I missed something small but I can't seem to find the issue

    // Update is called once per frame
    void FixedUpdate()
    {
        if (!isAlive) { return; } // If the player is not alive, do nothing

        ClimbLadder();             // Handle climbing on ladders
        Die();                     // Handle player death

        if (!_isRolling)
        {
            run();                 // Handle player's running
            FlipSprite();          // Flip the player sprite based on movement direction
        }
    }

    // Input handler for player movement
    void OnMove(InputValue value)
    {
        moveInput = value.Get<Vector2>(); // Get the movement input
    }

    // Function to handle player movement
    void run()
    {
        float targetSpeed = moveInput.x * _runSpeed; // Set the target speed to the constant run speed

        float speedDiff = targetSpeed - rb2d.velocity.x;

        float accelRate = (MathF.Abs(targetSpeed) > 0.01f) ? acceleration : decceleration;

        float movement = MathF.Pow(MathF.Abs(speedDiff) * accelRate, velPower * MathF.Sign(speedDiff));

        rb2d.AddForce(movement * Vector2.right);

        // Check if the player is running and update the animator accordingly
        bool playerHasHorizontalSpeed = Mathf.Abs(rb2d.velocity.x) > Mathf.Epsilon;
        animator.SetBool("isRunning", playerHasHorizontalSpeed);
    }```

    public float decceleration = 7f;
    public float acceleration = 7f;
    public float velPower = 0.9f;
    [SerializeField] float _runSpeed = 5;             // Running speed```

[swift falcon]

Listen up brother. your decceleration and acceleration values are the same. What's the point of making two variables with identical values?

public float decceleration = 7f;
public float acceleration = 7f;

isn't one supposed to be negative?

or something

not sure I understand what you are doing

[ruby nacelle]

It's just for testing, I haven't been able to get a chance to test both values properly I've commented what the code is intended to do to make it easier to read

    // Input handler for player movement
    void OnMove(InputValue value)
    {
        moveInput = value.Get<Vector2>(); // Get the movement input
    }

    // Function to handle player movement
    void run()
    {
        //calculate direction and desired velocity
        float targetSpeed = moveInput.x * _runSpeed; // Set the target speed to the constant run speed
        //calculate difference between current and desired velocity
        float speedDiff = targetSpeed - rb2d.velocity.x;
        //change accelration rate depending on situation
        float accelRate = (MathF.Abs(targetSpeed) > 0.01f) ? acceleration : decceleration;
        //apply acceleration to difference, then raise to a set power so acceleration increase with higher speeds
        //multiples by sign to reapply direction
        float movement = MathF.Pow(MathF.Abs(speedDiff) * accelRate, velPower * MathF.Sign(speedDiff));
        //apply force to ridgidbody, multiplying vector2.right so only affects x axis
        rb2d.AddForce(movement * Vector2.right);```

[swift falcon]

I think it's because you are using Mathf.Abs, so the values are always possitive, meaning the character will always move right

[mystic ferry]

_rb.transform.position = Vector2.MoveTowards(_rb.position, _player.transform.position, _monsterSpeed * Time.deltaTime);

works fine, but replacing _rb.transform.position with rb.velocity causes some strange issues. Can anyone explain this disparity?

[leaden ice]

because it makes no sense to mix position and velocity here

they are not interchangeable

[mystic ferry]

I'm a bit confused, MoveTowards returns a vector, so what makes that only applicable to position? not sure what I'm missing

[leaden ice]

vectors can represent many things

positions

velocities

euler angles
colors

you cannot simply use any vector anywhere

just like how a number can mean a weight, or an age, or an amount of time

they are not interchangeable just because they are numbers

[mystic ferry]

I understand the sentiment but I don't understand how that's the case here

[leaden ice]

_player.transform.position is a position vector
_rb.velocity is a velocity vector

you cannot intermix them directly

that's all

it's that simple

you cannot simply say _rb.velocity = _player.transform.position; and expect something sensical to happen

[cosmic rain]

Imagine you're cooking a cake and it says put a lot of sugar. You put a lot of salt instead and justify it with: "but they're both white crystal like powder. I don't understand what's the issue".

[leaden ice]

the result of Vector2.MoveTowards when you pass in two position vectors is also a position vector. It cannot be used as a velocity.

Of course, it's not clear exactly what code you wrote when you tried what you tried, since you didn't share it, but I'm making an educated guess here.

[mystic ferry]

that puts quite a few pieces together that I was apparently missing. I never really thought they were completely separate vectors and just thought of modifying the transform directly as "teleporting" the object rather than updating the position vector

thank you for the help :)

[worn stirrup]

Hey all, trying to figure out how to write this together because I'm pretty sure it can? CS f (!Mathf.Approximately(vacuumHeight, targetHeight)) { //POINT UP if (vacuumHeight > targetHeight) { vacuum.AddForce(new(0, -vacuumTurnStrength * (1.5f - Mathf.InverseLerp(startHeight + 0.9f, targetHeight, vacuumHeight)))); } //POINT DOWN else if (vacuumHeight < targetHeight) { vacuum.AddForce(new(0, vacuumTurnStrength * (1.5f - Mathf.InverseLerp(startHeight - 0.9f, targetHeight, vacuumHeight)))); } }

The code is basically the same both ways, it's just comparing two floats and inverting a couple values internally based on the difference in the floats, how do I shrink this down?

[leaden ice]

if (!Mathf.Approximately(vacuumHeight, targetHeight))
{ 
  float dir = Mathf.Sign(targetHeight - vacuumHeight);
  vacuum.AddForce(new(0, dir * vacuumTurnStrength * (1.5f - Mathf.InverseLerp(startHeight + 0.9f, targetHeight, vacuumHeight))));
}```
Something like this?

[worn stirrup]

that seems correct, would just need to apply the -1 to the 0.9f

[leaden ice]

ah missed that bit

[worn stirrup]

thank you, I'm gonna try it

[worn stirrup]

Oh I forgot to say anything, that works perfectly, thanks!

[vague tundra]

Does anyone know of a more light-weight alternative to the LineRenderer component?
I want to draw 2D lines, no lighting or anything like that.

[leaden ice]

There's the classic GL api:
https://docs.unity3d.com/ScriptReference/GL.html

example: https://docs.unity3d.com/ScriptReference/GL.LINES.html

[gray mural]

Is ScriptableObject reference or value type?

I guess reference

[fervent furnace]

it is class

so reference

and you cannot inherit from value type (all the structs) or vice verse iirc

[gray mural]

I see, thanks

[latent oak]

hallo peeps, I was wondering. I have an inventory system. however I wanted a cursor to appear like a selector on the top corner of the slot when the user is using a gamepad(pretty typical i feel). Is this relatively easy utilizing the new input system, and how can I calculate the navigation without making thee slots buttons or maybe I need them to be buttons, but any advice would be great

[blazing smelt]

So I think I asked the other day but didn't get a response - Unity's IAP system seems to be designed around loading products in big batches, instead of one at a time. Is there a particular reason for this? I'm refactoring some existing code somebody else made, that seems to be designed around adding products one at a time at a certain point, and I'm wondering if I need to change it so they're added before in a batch.

Does this question make sense? The code is overly complicated so I tried to only mention the relevant stuff so as to not waste time.

[mossy snow]

What does "big batches" mean? Why would you load them one at a time? You aren't likely to have more than a few dozen at most

[digital umbra]

Why can't I send my code?

[mossy snow]

the bot might be deleting it if you're just trying to paste it in here instead of using a site

[gray mural]

is it possible to make all children images to change their alpha when parent's alpha is change?

without writing my own script

[mossy snow]

group them under a canvas and attach CanvasGroup. Use the CanvasGroup alpha

[gray mural]

oh, works, thanks

[wanton wasp]

I don't know, if it is the right place to ask. Anyways, I've got an error, when creating a 2D project from the template. The error itself coming from TestRunner module.
Library\PackageCache\com.unity.test-framework@1.1.33\UnityEditor.TestRunner\CommandLineTest\TestStarter.cs(1,1): error CS1056: Unexpected character '
Things I've already tried:
Restart Unity
Reboot
Reinstall Unity completely
Deleting library folder

Version: 2022.3.8f1, 2022.3.51f

I can't just delete Test Runner package, because 2D package depends on it.

[prime sinew]

did you edit it?

Are you able to view the TestStart.cs file?

[wanton wasp]

No, I didn't
I've opened it:

[simple egret]

👀

Filled with null characters

[prime sinew]

not at all what I was expecting.. that is really weird

i've got no idea

[wanton wasp]

Can someone tell me the version of the test runner in your project?
Maybe the 1.1.33 version is broken.
Upd: it's actually called Test Framework

[lucid wigeon]

Any log manager which would allow me to switch logs off per component or per gameobject or per class to reduce spam? Obviously I can comment out logs but that's not the point.

[blazing smelt]

because the existing code seems to be set up that way and I need to figure out if I can afford to spend time fixing it

[wanton wasp]

After some research, I've found out, that 1.3.9 is the latest version.
I've updated to it.
Now, two other files became null filled
Tried version 1.3.5 the same thing
Rolled back to 1.1.33 the same error as the first time

I can't tell if it is problem on my side, or unity forgot to bump some dependencies.

I'll try my luck with 2021 version.

[mystic ferry]

I'm writing some simple AI, think like the skeleton from minecraft where it chases the player if they're too far away, and once they reach a certain threshold they start a ranged attack. How would I specify whether the player is in "chase" range, vs "attack" range? it seems intuitive to have a child gameobject with a second istrigger collider, but I think that'll require a second script to talk to the parent which seems unelegant. What do you guys do?

I just realized a state machine that checks distance each frame in the move state sounds like it’ll work fine but still curious what y’all do

[tardy basin]

Hi, can anyone advice me on how can I take input from the user in the Dedicated Server console?

[wanton wasp]

So, I've tried to open the same project using 2021.3.30f1.
And it didn't work, the same error.
Creating a new project using 2021 lead to the same error.
I can open my old project just fine.

My final guess, unity forgot to update dependencies for 2D package.

@cyan compass
Sorry for the ping, can unity investigate this?

[wanton wasp]

The distance check will work, but in the long run it's better to use a second collider with 'isTrigger' on, because it will consume less cpu resources.
Last time I was making an AI, I did just that.
I even have a repo:
https://github.com/R1nge/Diabloid

[mystic ferry]

always nice reading through some well written code, thanks

[tardy basin]

bumping my question

[heady iris]

I prefer to just measure distance.

I will use (trigger) colliders to detect things in the first place.

That is one area I need to profile. I'm not sure which of these is smarter:

• Just test distance against everyone
• Use a physics query to find nearby entities, then test distance against just those

Physics queries should scale better. Probably 😉

[wanton wasp]

It depends on your needs.
If you have a small group of enemies, which should change state depending on the distance to the player, both will do.
But, if we are talking about 100s of enemies it can create a heavy load on the cpu, depending on the distance check formula. For example, Vector3.Distance is slower than (playerPosition - transform.position).sqrMagnetude, I could be wrong, maybe unity have optimized the distance method

Generally speaking, physics things are almost always slower than plain math.
I can't advice the best solution to you, because I don't know what type of game you are making.

[untold nebula]

GUYS I am making a multiplayer game using photon and i need help

[wanton wasp]

Can you tell more about your problem?

[untold nebula]

its a top down game shooter i just want to make a gui for them

[rigid island]

dont crosspost

stay in 1 channel

[untold nebula]

ok

[rigid island]

multiplayer questions go in #archived-networking

[atomic fractal]

I will post my question here, it might be suited better here

hey everyone, im having a problem.
I try to make a spell effect to be exactly as far as my hitbox. Lets say my Firelance should be 6 units long. But when my balancing decides to go for 7 units, i would have to redesign the effect, and that does sound annoying... is there a good way to have a Particle Effect / System or something that rescales to a single factor ?
i hope my question makes sense

[rigid island]

what exactly about this is code quesition?

[atomic fractal]

Since i assume this is something that needs to get solved on the code side of things

[rigid island]

Im not even sure what ur asking here

[heady iris]

sounds like you need to set parameters on your particle system through code, yes

this is more straightforward in the Visual Effect system. you'd just add a Property for the length, and use that to decide how to position the individual particles

[atomic fractal]

Is there a good (and clever) way to figure out how long a particles lifetime needs to be considering the speed to fly X units ?

[heady iris]

assuming no drag, that's straightforward

speed is distance / time

[atomic fractal]

is that system available for Unity 2019.4 ?

[heady iris]

you know distance and want time

divide the distance you want by the speed

10 meters at 5 meters per second = 2 seconds

[atomic fractal]

makes sense, indeed.

[heady iris]

https://docs.unity3d.com/Packages/com.unity.visualeffectgraph@15.0/manual/System-Requirements.html

A rather old version, but yes

should still do what you need, if you want to try using it

[severe sable]

Enums are fairly useless since they don't store any data themselves and need a function to read them. Having a state as an enum is only as useful as the function checking what state there is, and this could be better done through a class as then the data and functions can be stored within it instead of creating more bloat code for reading enums correct?

[heady iris]

But if you're already using particle systems everywhere, I would not switch just for this

[heady iris]

eh, if I don't need a lot of extensibility, enums are fine

[atomic fractal]

thanks my man. I will give it a shot!

[heady iris]

switch statements give you very similar behavior to polymorphism: you pick the code to run based on the value of the enum (vs. the type of the object)

[severe sable]

Currently working on a game and I've found myself using enums a few times and have noticed that each time, can you think of some good examples I can utilize them?

[heady iris]

well, I just wrote a little debug utility that lets me place entities and give them commands

it just has a few modes

https://gdl.space/nabakenuse.cs

...I haven't actually put any code in there yet!

but that's how I'm going to perform actions when entering and exiting modes

[fervent furnace]

i sometime use enum in ondrawgizmos to draw different things for debug

[heady iris]

I could create an entire state machine for this

but I really don't feel like adding a bunch of classes that individually do very little

[severe sable]

hmm, not going to lie I was hoping for someone to tell me I'm completely wrong and I was using enums incorrectly and they had much more power than I thought

[heady iris]

they don't have magic powers

[severe sable]

They don't have any powers haha

[heady iris]

it's just that, for small problems, you don't need a seven layer bean dip of polymorphic abstraction

[ashen yoke]

enum is just labeled values

[heady iris]

you need a dang switch statement

I use state machines for my entities

[severe sable]

Makes sense

[heady iris]

Different entities can have wildly different sets of states

[severe sable]

See I've got a really weird issue that I feel like has to be super common

[heady iris]

If the set of states is constant, and each state is pretty small, I just write if/else chains or switches

[severe sable]

You know games that involve a player dragging and dropping parts onto other ones that connect?

[ashen yoke]

static MyEnum
{
    public const int Value1 = 0;
    public const int Value2 = 1;
    public const int Value3 = 2;
}

int val = MyEnum.Value2;

this serves the same purpose

[heady iris]

public const int TheNumber3 = 4;

the inevitable catastrophe 😉

[severe sable]

I am currently trying to figure out how on earth to store this data and use it. (regarding an Attach point system) I did some brainstorming and I was really hoping for some input on how to approach this issue. could you guys help perhaps?

[ashen yoke]

enum MyEnum
{
  TheNumber3 = 4
}

[fervent furnace]

i often use static class consists of const int since i need my enum to be array index
but extremely dangerous

[ashen yoke]

i dont understand

[heady iris]

oh, that was a bit of a tangent. it wasn't actually really relevant here...

i was thinking of when you have constants whose name is literally just the content of the constant

(you see it in CSS sometimes)

but yes, that is actually completely irrelevant. oops.

[ashen yoke]

easy to spot an error

if its a convention

[fervent furnace]

or change enum to byte which consume fewer memory

[severe sable]

Do you guys have any idea? I've asked around a few times and even been pestering chatGBT for ages trying to get a prompt to give me some good examples of how to approach this with little luck 😦

[heady iris]

sounds like each object should have a set of manually-authored snap points to me

[severe sable]

Should I store those as vectors or should I just have an attached gameobject that is a attachpoint?

[heady iris]

Transforms are nice because you can parent another object directly to them

you also get to see and move them in the editor for free

[severe sable]

so a child gameobject right? since I have prefabs for blocks already

[ashen yoke]

if you already include the case where you can have weird shapes that is not possible to automate, chances are you wont find an automatic solution

you can write a semi automatic authoring tool that setups initials

then you manually adjust after initial point gen

[heady iris]

That would be ideal. Something that gets you a sane value would be enough.

[ashen yoke]

but it still needs to be human validated

you can write validation code that notifies you of errors

[severe sable]

That would be amazing and just what I was looking for, but I will be honest, I have not done that before, and only recently learned how to make my own enums show in the inspector through serialize field

[ashen yoke]

and so on, you help yourself with things that can speed up content production, but you cant completely automate everything unless you have a very strict set of constraints

[severe sable]

Where can I start learning?

[ashen yoke]

just do stuff, start with something

[severe sable]

How would I go about auto generating that, and aren't I unable to do that in the edit mode?

I was thinking about that a lot

[heady iris]

welcome to the world of editor scripting (:

Play Mode and Edit Mode aren't that different

[severe sable]

Since you need to run the game for the code to execute so how do you get it to run and still be in edit

[severe sable]

enlighten me!!

[lean sail]

You dont

[heady iris]

for an intuition:

https://docs.unity3d.com/ScriptReference/ExecuteAlways.html

[ashen yoke]

you can do everything in edit mode

[heady iris]

Play Mode just keeps you safe

[ashen yoke]

even run physics

[heady iris]

The game is always running.

[ashen yoke]

and animations

[lean sail]

There are a few easy options too like context menu or menu item which you can run code at the click of a button.

[heady iris]

there is no spoon

[severe sable]

and quick question, when I build this, that code will be taken out or seperated right?

[ocean river]

ah guys i have a question.
is it possible to create a curve between 2 objects?
i want an specific object to move along that curve for a second, but also, if possible, bent the character fitting to the curve.

[ashen yoke]

editor code stays in editor

[severe sable]

like if I adjust where an instance of a gameobject that an editor script generates in the editor, it won't be localized and reset on a build that gets published?

[ashen yoke]

not sure what you mean by that

[severe sable]

I'm finding it a bit hard to explain, let me give it another go

[lean sail]

Bent the character?
As for your first question, a slerp may be enough for your case or look online for custom slerp/lerps.

[severe sable]

So lets say we make this script that will automatically place some attachpoints where it thinks they go, and then once it does that I decide that one of them is good, but lets say another isn't good and I remove or move it slightly, will I be able to keep these changes when I go into play mode? since usually play mode executes a bunch of scripts over again, it wouldn't reset the position of the object I decided I wanted to manipulate?

[ashen yoke]

you will be manipulating data in the asset directly

same way you manipulate prefabs in editor

data is serialized into the object you are editing

which is then used in playmode

[ocean river]

lets get to the point, i want to create something like the mario odyssey capturing animation

[severe sable]

I think I understand, but this a bit confusing and also really interesting and I tend to find I learn best by doing, do you know if there's a example github of a concept like what you are talking about?

[heady iris]

the editor scripts would modify your game data.

[lean sail]

On mobile so can you just describe with words lol

[heady iris]

their job is now done

[severe sable]

or could you help me create a very simple version and I can go from there

[lean sail]

There really isnt much of a concept to even describe. The goal is literally just to have the editor place objects around, it's the exact same as if you wouldve placed them. They'll be saved and usable in play mode like any other object

Editor script place objects around*

[severe sable]

but how do I even create a script for this, it's obviously not derived from monobehavoir

[ashen yoke]

create a test script,
create a custom inspector for it,
add Vector3[] array to it,
in the custom inspector in OnSceneGUI, use Handles class to draw spheres that are associated with points in that array,
use Handles transform gizmo to move points around,
result is you can click, drag, delete points in that array

after that everything else will be clear

[severe sable]

Ok, I will try that now, ill ask if I have questions

[ashen yoke]

i outlined a learning path, which involves lots of reading at each step

[lean sail]

Depending what you choose to do, yes it could be. A context menu would work on a MB

[ashen yoke]

result will be you ready to tackle the custom editor for your purposes, somewhat

[round creek]

hey, does anyone know how i can get sharper/crisper shadows? right now they look pixelated to a degree. (3d urp, directional light)

[severe sable]

by test script you mean just a new script, there isn't some special test class I assume

[ashen yoke]

yes

i also recommend new project

[severe sable]

is there a risk if I dont use a new project haha

[ashen yoke]

it just will be slower

empty project - instant compilation, fast iterations

[severe sable]

ah fair then it should be fine, mine doesnt take too long

[severe sable]

a custom inspector would be initalized on an objec though right, not an script?
this is all I can find on unity documentation:
https://docs.unity3d.com/ScriptReference/UIElements.InspectorElement-customInspectorUssClassName.html

[ashen yoke]

https://docs.unity3d.com/Manual/UIE-HowTo-CreateCustomInspector.html

[vivid remnant]

How can I get the velocity of a rigidbody right before a collision?

[rigid island]

store it in a variable

stop storing when collided

[vivid remnant]

Should I use FixedUpdate() in order to store the velocity?

Is OnCollisionEnter() always called after FixedUpdate()?

[rigid island]

should work

there is also this
https://docs.unity3d.com/ScriptReference/Collision2D-relativeVelocity.html
https://docs.unity3d.com/ScriptReference/Collision-relativeVelocity.html

[vivid remnant]

So it is better to store the velocity of an object relative to the object it collides with. Found some forums where people were saying the same thing. Noted with thanks!

[heady iris]

FixedUpdate executes immediately before the physics simulation updates, btw

https://docs.unity3d.com/Manual/ExecutionOrder.html

[mystic ferry]

https://pastebin.com/iHs3VHn5

I know this is bad code but it's just some prelimary tests but I'm absolutely baffled by the logs. For some reason the logs show _timeToRemainStillAfterMoving as negative, and it's causing a lot of strange behavior. I have no idea how it's even possible to get a negative value here

I'm setting the variable equal to a random range between 2 and 3, and it somehow spits out negative

[fervent furnace]

you setting it after waiting

[heady iris]

RandomMove waits for 3 to 6 seconds before reassigning _timeToRemainStillAfterMoving

It's also getting started every single frame

[ashen yoke]

you are starting a new coroutine

yes

guard it somehow, a bool or state check, ideally

[mystic ferry]

ahhh I see

man that's tricky. Surprised that was so obvious for you guys to spot lol

[ashen yoke]

you should abstract your states

[mystic ferry]

I will, like I said I knew it was bad code, I was just confused by the logs

[heady iris]

Pay attention to how you "guard" each part of your code.

the path taken to reach it

your condition for wandering should be "I am not wandering yet AND I'm done standing still"

[earnest gyro]

what's the best way to avoid NullReferenceExceptions? Currently, I'm putting in if (_myObject != null) everywhere but that can't be correct. I think it's related to the call order: create a monobehavior > update gets called > set an attribute with a public method. And so I wind up with nulls because I think update (needing a specific attribute that hasn't been set yet) gets called maybe a frame or 2 before actually setting the attribute?

[ashen yoke]

what is "set an attribute with a public method"

[fervent furnace]

ofc you have to figure out the dependencies

[mystic ferry]

surprisingly helpful perspective, I have a bad habit of writing logic with the assumption that specific parts of code will always only be reached under ideal conditions and it's a bad habit I need to shake

[heady iris]

You should get a handle on the order, yes.

[earnest gyro]

well it's a monobehavior, so I can't pass variables into a constructor, but I do want to set certain attributes from outsidethe monobehavior. So for example, I have like SetColony to set the _colony attribute of this monobehavior

[heady iris]

Awake runs on every object in the scene. Start then runs before the first Update.

Awake also runs instantly on every enabled monobehaviour when you instantiate an active gameobject

[earnest gyro]

so theoretically if I'm passing the objects around in start, it should be fine?

[heady iris]

If you need to do something before the next frame, but also need to configure something first, you'll need to have an Init method that you call manually or something similar

[heady iris]

A common strategy is to set yourself up in Awake, and to then talk to other objects in Start

[earnest gyro]

called manually from Awake or Start?

[earnest gyro]

Got it. I'm trying to stick to this pattern.

[heady iris]

Neither. It would be called by whoever instantiates the object

e.g.

var thingy = Instantiate(myPrefab);
thingy.gun = someGun;
thingy.faction = Faction.Dudes;
thingy.Init();

Init could then do something with the gun and the faction

Awake runs as part of instantiation, and Start runs in the next frame

[earnest gyro]

I see

[heady iris]

I recently had a problem where my spatial audio sources could get asked to play a sound before their Start method had a chance to run

so I threw in a manual Init method

[earnest gyro]

But like I've got code like that in the Start of another object

[earnest gyro]

like this i mean

[glass verge]

colliders

[shell scarab]

@heady iris you familiar with Dictionary and SortedDictionary?

[heady iris]

ask your question

[shell scarab]

I was wondering if I should switch to using a SortedDictionary instead of a Dictionary if I don't expect to have a lot of elements in my collection.

[heady iris]

use SortedDictionary if you need to access the dictionary's contents in key-sorted order

[shell scarab]

yea but I believe for smaller number of items SortedDictionary is faster

[heady iris]

well, if you believe it, then go ahead and do it

i don't know the gory details of the implementations

SortedDictionary is a tree and Dictionary is a hashtable

log(n) comparisons vs. a constant-time hashing and lookup

[shell scarab]

yea ik, which means it's O(log(n))

[heady iris]

i suppose it could be slightly faster if hashing is expensive

profile it if you think there's some kind of difference to be had

[earnest gyro]

Help with a NullReferenceException

[shell scarab]

O(log(n)) could be faster for a while than O(1) depending on how fast O(1) is. I can't find any details on how fast A dictionary actually is.

[fervent furnace]

search in binary tree is O(log(n)*size of key) while hashing is O(size of key)

hashing is not O(1) actually unless you pre compute the the code

[heady iris]

which is why you'll need to profile it if you think there's going to be adifference

[heady iris]

well, if the key is fixed in size, then the hashing is also constant-time

[shell scarab]

I'm talking about accessing it

[heady iris]

accessing it requires hashing the key, yes

[shell scarab]

oops yea, interesting, everything I read online says it's O(1)

[fervent furnace]

btw in many case i believe the code will be pre computed

[heady iris]

It is constant-time for a fixed-size key

[ashen yoke]

the O means different things in different contexts

[fervent furnace]

and stored

[ashen yoke]

you can find massive examples of claimed O(1) when its actually deeply not 1

its just 1 relative to other algorithms

[heady iris]

well, O(10000000) is still O(1)

[ashen yoke]

and discards details

[heady iris]

but you can certainly get bitten by the constant

[shell scarab]

my key is a Vector2. It's hash function shouldn't take longer sometimes and less time other times, right? So it should be O(1) if it's precompiled.

[heady iris]

yes, that's going to be constant-time

all of this is bikeshedding. just use the dang dictionary and go make your game :p

i need to run for a bit

[shell scarab]

That actually explains why it takes around 8 milliseconds for my pathfinding to work the first time then like 3 other times, bc of the JITC

[ashen yoke]

unitys vector hashing is also slow

[shell scarab]

what about float2's hashing?

[ashen yoke]

probably they chose the safest less collision spookyhash

[shell scarab]

or int2's hashing

[ashen yoke]

i checked the method with deep profiler

[shell scarab]

the what?

[ashen yoke]

vectors use spookyhash

[twilit egret]

Hi, I'm not sure if this is the right place to ask this question, but I'll give it a try.

I am currently working my way through the Open Game Project "Chop Chop" (https://github.com/UnityTechnologies/open-project-1) to learn more about Unity.

In the Initializer Scene, the LoadEventChannelSO is loaded as AssetReference Async. However, in the following scene, the PersistenceManagers scene, the LoadEventChannelSO object is referenced directly in the SceneLoader (not via AdressableScript, which would have to be loaded first).

I don't understand why. Can anyone tell me why this was done?

[latent wadi]

How can i make something follow the mouse if the mouse clicks within certain bounds, for example i want to have a system where you can view a 3d model of a gun and use the mouse to interact with it like pulling back the bolt or removing the magazine by clicking and dragging. Is there a way to do something like hitboxes or something around the separate intractable parts and say that if the mouse is over those "hitboxes" that part is interacted with?

[heady iris]

You need to translate the mouse position into an appropriate world position

to start the interaction, you'd just raycast and see if you hit a collider on an interactable thing

[latent wadi]

currently i have something like this, when you press mouse 2 you can drag the mouse to rotate the model

[heady iris]

for something like a bolt, you could use Plane to define a plane along which the bolt moves

and then use its Raycast method to figure out where on that 2D plane the mouse is pointing

then you'd need to decide where to put the bolt based on that

[latent wadi]

and then i think i could use Mathf.clamp to stop it going to far back or forawrd right?

[heady iris]

sounds like something that Vector3.Project and Vector3.ProjectOnPlane could do. I'd need to think about that a bit.

[heady iris]

You'd clamp the position, yeah.

Imagine turning a mouse position into a value between 0 and 1

0 is the bolt all the way back; 1 is the bolt all the way forward

you're find the closest point on a line to the mouse

and then figuring out how far you are along that line

[heady iris]

not sure what the math for that would be off the top of my head..

I know I've done that math before

I guess you'll want to figure out what "kinds" of controls you'll need

certainly a 1D axis

and one for rotation around an axis

e.g. to unfold a stock

for moving a magazine around, you could do 2D movement: lock it into the plane of the firearm and move it around on there

and maybe a kind that doesn't move at all

like clicking to change the position of a safety

[latent wadi]

Hmmm, alright, i'll probably just try out some of the stuff you mentioned and mess around with scripts for a while and see what works for me

[tawny elm]

i currently have one script thats inheriting from another.
im trying to have the inhereted script execute a void inside the ones inheriting from it but it wont work.

[knotty sun]

wdym 'a void'?

[tawny elm]

yknow these guys in the code

[knotty sun]

Oh, you mean a method?

[tawny elm]

well it says void there so i didnt think there would be any communication error

[knotty sun]

void is a return type not a description of what it is

[tawny elm]

i know thats not technically what it is but i really dont think anybody else would be confused on what i was trying to talk about

[knotty sun]

not confused, just trying to educate you in correct termimology

void Awake()

is the signature of the Awake method

[tawny elm]

so i was right in that you were only acting confused so that you could correct me

[knotty sun]

correct

[shell scarab]

its ok, it was a communication error. You would say "a function" or "a method" not "a void", "a void" doesn't really make sense

[tawny elm]

he just admitted that it wasnt a communication error

[shell scarab]

no they just said they're not confused

[knotty sun]

this server is as much about education as helping, when you ask questions to get good answers using the correct terminology will help your cause

but to answer your original question
you are using the wrong access modifier which is why the inheriting class cannot see the inherited method
See what I mean about terminology?

[vague sedge]

trying to figure out walking along walls, ive almost figured it out but not competely, it rotates around the worlds z axis but not around the x axis, and im unsure how to fix this

rough outline of how it rotates around the object

heres the script aswell for all movement and rotation https://gdl.space/faxixanamo.cs

[olive sedge]

I have never used text mesh pro before and I am a huge dumb

[dense vessel]

I'm not sure I understood what the problem is and haven't looked very carefully at your code (it's loong 🥲 ) but assuming you know the normal, you can rotate the player using transform.rotation = Quaternion.LookRotation(transform.forward, normal);
That should keep the forward axis (= the z axis) of the player the same and align its up axis (= its y axis) with the normal.

[olive sedge]

I'm trying to change the text of a TMP component on awake but it's complaining the component is missing

What on Earth is going on?

using TMPro;
using UnityEngine;

public class ChangeTextOnStart : MonoBehaviour
{
    TextMeshPro _textMeshPro;

    void Awake()
    {
        _textMeshPro = GetComponent<TextMeshPro>();
        _textMeshPro.text = "Hello, World!";
    }
}

[dense vessel]

Do you have a TextMeshPro assigned to your object?

Be careful that there are I think 3 classes with similar names, pick the right one 😉

[somber nacelle]

keep in mind that TextMeshPro is the non UI version. you can use TMP_Text for the type for either the UI version (which is actually TextMeshProUGUI) or for the 3d text version which is the one you are using

[olive sedge]

This is why I was extremely confused

[somber nacelle]

yeah that's not a TextMeshPro component

that's a TextMeshProUGUI component

[olive sedge]

Why are they different things that's a beginner's trap

[somber nacelle]

#archived-code-general message

use TMP_Text if you don't care which of the two types of text mesh pro text components you are using.

[olive sedge]

It's working now

That's the important thing

[heady iris]

because UI and non-UI rendering is completely different

[olive sedge]

OK so now that I've got that figured out, I can't get TMP to play nice with my assembly definition.

I've included them as references into the necessary script and yet it's still complaining that I don't have the right permissions to include it as a library.

[somber nacelle]

remove the reference to the editor assembly there unless you want issues when you go to build. and you need to be more specific about what your actual issue is

[shell scarab]

does deep profiling affect performance if you didn't turn it off after you close the profiler?

[olive sedge]

That's the thing. I don't know how to be more specific. All I know is that I'm using assembly definitions and the code I'm using has a big squigly line under Text Mesh Pro where it doesn't elsewhere.

https://gdl.space/laracujiku.cs

[somber nacelle]

why not share what the error says? that would be how you can be more specific

[olive sedge]

So this script obviously doesn't work, but I'm really interested in that second line.

[somber nacelle]

and does the error appear only in your IDE or do you see it in the unity console as well

also _textMesh = GetComponent<TextMesh>(); is wrong

[olive sedge]

Severity Code Description Project File Line Suppression State
Error CS0246 The type or namespace name 'TextMeshPro' could not be found (are you missing a using directive or an assembly reference?) LunaRoseManor.Spacewar.Events C:\Users\******\Working\unity-spacewar\Assets_Project\Scripts\Events\IncrementTextOnDestroy.cs 2 Active

I'm only interested in why the library isn't being included

I know how to fix everything else

[somber nacelle]

again, does the error appear only in your ide or does it appear in the unity console as well

i'm not asking questions just for shits and giggles mate

[olive sedge]

I'm a big dumb

The editor shows on both the IDE and Unity

But The library isn't called "TextMeshPro", it's "TMPro"

It's a very similar issue to before where we have different names for things.

[somber nacelle]

also for future reference, it's a namespace not a library

[heady iris]

indeed: I don't think that "library" has a technical meaning in C#

[stark sun]

https://hatebin.com/jacwzjsnps
https://hatebin.com/jzepfeqywg
Can someone take a look , I dont understand why enemy is not stopping
Note:slippery script is in the platform.

[west sparrow]

I know it doesn't matter much, but it's partially because TMP was made by some guy in a basement, and was eventually bought and added into Unity directly, and had little more than life support since. It has always been a bit of an ugly workaround for textboxes imho, but was a lot better than the standard text boxes (which Unity created about 9 years back).

There is a lot it doesn't do or does poorly that makes it awkward to work with the first time. Even RTL text, non-english character sets, etc. All unnaturally difficult to work with.

That said it's still better than the existing, and was bought and brought in. So it's kind of a messy standard - IMHO

[west sparrow]

Is it the friction on the rigidbodies?

When you say not stopping, as in not at all, or just slowly

[stark sun]

At normal they follow me in a range

[west sparrow]

Assuming you aren't running OnTriggerEnter over and over and having a whole bunch of coroutine instances running

[stark sun]

but I want them to stop following me for 2-3 seconds and then continue when they step on slippery platform

[mossy snow]

I meant, I don't understand what you mean. We're talking about a couple lines of code here, consisting of a dictionary basically. Why does the number of items in it matter? What are you 'loading'? Beyond that init, unless you're doing something super weird there isn't much complexity in the code itself

[stark sun]

they continue to follow me , nothing happens when they step on the platform

[west sparrow]

I'd add at least a tag check in the OnTrigger first though or it'll error when any other trigger comes into contact with it.

Then, it also can be executed multiple times over and over. So I'd add a bool for _isRunning to prevent like 30 instances of the courotine from being triggered

[stark sun]

I will try thanks

[west sparrow]

From there, you'll need to debug and look at if NotMoving is ever executed

[severe sable]

using Content;
using UnityEditor;
using UnityEditor.UIElements;
using UnityEngine.UIElements;

namespace Editor
{
    [CustomEditor(typeof(Block))]
    public class BlockInspector : UnityEditor.Editor
    {
        public override VisualElement CreateInspectorGUI()
        {
            // Create a new VisualElement to be the root of our inspector UI
            VisualElement myInspector = new VisualElement();

            // Add a simple label
            myInspector.Add(new Label("This is a custom inspector"));

            // Return the finished inspector UI
            return myInspector;
        }
    }
}```

Made a custom inspector script and I have a folder path similar to this

MonoBehaviour
|
↓
Block (Abstract)
|
↓
MovementBlock

For some reason however this inspector will not show up in my project

[swift falcon]

my ui in computer(1) and my ui in android(2)

what is the issue and how to solve it

[somber nacelle]

not a code question. see the documentation pinned in #📲┃ui-ux to learn how to correctly anchor and scale your ui

[stark sun]

I got this error in this script: Object reference not set to an instance of an object
https://hatebin.com/zqdvbfcrij

[somber nacelle]

it usually helps to say where the error came from. but also you never assign to your CurrentMovement variable yet you use it in the SlideCoroutine

perhaps you want to use the enemyScript variable that is passed as a parameter to that method instead

[stark sun]

thanks 😀

[ember mortar]

why is there no mppm documentation? it says page not found

[visual dagger]

how do i make the items in player hand visible when the correct item is in the selected hotbar slot?

i was thinking of setting it in the SO

but that wont work

[somber nacelle]

https://docs-multiplayer.unity3d.com/mppm/current/about/
also there's the unity networking discord where you'd be able to ask questions about it. the link is pinned in #archived-networking

[visual dagger]

yeah that wont work

anyone please help

i've been sat at this for like half a day

if anyone can just tell me if they dealt with this

how they'd managed to get items to show

[heady iris]

isn't that going to be a prefab you're referencing

I handled this by instantiating a prefab every time I needed to show an item in the player's hand, and then destroying it when the item was put away

you could also instantiate the item once, then just disable it when the item is put away

[visual dagger]

i was thinking of that

is that a good way?

[heady iris]

well, it works

as long as you don't need to remember any state that was attached to the item itself

e.g. the actual weapon shouldn't hold the ammo count if you're creating and destroying it constantly

[visual dagger]

yeah ik

[heady iris]

(or, at least, it should not be the thing that remembers the count)

[visual dagger]

im not gonna destory them

im just gonna instantiate it

and then set it active

better performance

wait idk if its better for performance

[visual dagger]

so the SO will hold the prefab

of the item in hands?

[heady iris]

right

[visual dagger]

if(hotbarCells[selectedCell].item && hotbarCells[selectedCell].item.itemData.handPrefab != null)
{
    InventoryCell cell = hotbarCells[selectedCell];
            
    GameObject handPrefab = Instantiate(cell.item.itemData.handPrefab, holder.transform.position, Quaternion.identity);
}```

i cant figure out how to instantiate it in the same position

like usually its here

[shell scarab]

I'm trying to prevent the below situation from causing a deadlock by making the green-circled unit start moving to the next node using the following code (my parkings on it are not exact but pretty much the situation), but it doesn't seem to work in every case. I thought I'd use the dot product between the direction of the unit's position to the current node and the direction of the unit's position to the next node, and if that's under 0, then switch to the next node if it can see it, but it doesn't seem to work. All the units are on layer 6. Is something wrong with my dot product code? This is in an update loop.

if (path.TryPeek(out next))
{
  Debug.Log("Peek Success");
  if (Vector2.Dot((current - rb2d.position).normalized, (next - rb2d.position).normalized) < 0)
  {
    Debug.Log("dot success");
    if (!Physics2D.Raycast(rb2d.position, next - rb2d.position, Vector2.Distance(rb2d.position, next), ~(1 << 6), -1, 1))
    {
      Debug.Log("raycast success");
      current = path.Pop();
    }
  }
}

And to add clarification to the little diagram, I tried to color-code it. The circled green unit is moving to its current node, which is the orange circled unit's last node. They are all moving in the same direction, but the green circled unit got pushed past its node so it couldn't reach it.