archived-code-general

[vagrant blade]

But yes, raycast from the camera is the usual way to detect interactions

[ruby trellis]

I do want to select the objects that are really far away so that would have to be set quite high

[ruby trellis]

alright thanks I guess its the easiest too

[vagrant blade]

I don't know how accurate it will be when things become that far though.

[ruby trellis]

well I'll try if it doesent work I'll keep looking

[uncut plank]

a concern would be that players with lower framerates will have a hard time clicking things at distance without some kind of aim assist

[ruby trellis]

I guess a spherecast could help then

[uncut plank]

it could get stuck on some obstacle along the way

[ruby trellis]

do raycasts stop when hitting an object?

damn

[uncut plank]

but worry about that stuff later, for now just get it working

dont fix what isnt broken

[eternal geyser]

.

[ruby trellis]

I guess yeah

Ill get on it

[uncut plank]

perhaps youre calling this coroutine every frame

[buoyant mural]

I fixed it in the end by adding a bool

[uncut plank]

though this is a pretty inefficient way of implementing this

[buoyant mural]

and something else

[uncut plank]

it's better to just use deltaTime instead of a coroutine

[buoyant mural]

delta?

[uncut plank]

if you increase a value by x * Time.deltaTime every Update, it will increase at a constant speed of x

[buoyant mural]

Ok

That's not what I want though

[uncut plank]

what are you trying to make then

[buoyant mural]

Well it's quite hard to explain

it worked this is the final code

https://pastebin.com/e6FY8JJf

[inland escarp]

    IEnumerator CalculateTrajectory(Bullet bullet)
    {
        while (true)
        {
            bullet.flightTime += 0.1f;
            //print("Fire1");
            bullet.lastPosition.x = 0.0f;
            bullet.lastPosition.y = bullet.startPosition.y + bullet.height;
            bullet.lastPosition.z = bullet.startPosition.z + bullet.distance; 
            CalculateZDev(bullet);
            CalculateYDev(bullet);
            bullet.newPosition.x = 0.0f;
            bullet.newPosition.y = bullet.startPosition.y + bullet.height;
            bullet.newPosition.z = bullet.startPosition.z + bullet.distance;

            //print("FlightTime:" + bullet.flightTime);
            print(bullet.lastPosition);
        
            if (Physics.Raycast(bullet.lastPosition, bullet.newPosition - bullet.lastPosition, Vector3.Distance(bullet.lastPosition,bullet.newPosition)))
            {
                print("Hit.");
            } 
            Debug.DrawRay(transform.TransformPoint(bullet.lastPosition), transform.TransformDirection(bullet.newPosition - bullet.lastPosition), Color.green, 5.0f);
            yield return new WaitForSeconds(0.1f); 
        }
    }

I've tried sending this in beginner but nobody else has had much luck so perhaps someone in here might find something.

I'm trying to make a raycast based ballistic system. Problem is the rays are acting up and I'm not entirely sure why. Any ideas?

This is what it should, and did, look like. Problem is that the rays would not shoot out in transform.forward.

[mossy snow]

what do the calculate methods do? And you perform the raycast as though the bullet position were already in world space, but then you transform it anyways so either the raycast is wrong or the debug line is wrong

[sudden crest]

https://pastebin.com/bsqJJck7

Im trying to create a simple dialogue system
but im having trouble switching between each dialogue
whenever the player presses e again
can anyone help
I always get dialogue3 the first
and nothing else

[inland escarp]

They calculate the bullet height and distance at a specific time step.

It's probably the debug line that is wrong, however I'm not sure how to make sure the bullet leaves at transform.forward as opposed to remaining in the same direction regardless of the direction the character is facing.

[buoyant mural]

Where's your press e code

[sudden crest]

if(Input.GetKey("e") &&distance>Vector3.Distance(player.position, npc.position)){

   

    if(Physics.Raycast(r,out hit,distance)){
add(b);
StartCoroutine(Dialogue1());




    
    }}

[buoyant mural]

GetKeyDown

Change it to GetKeyDown

[sudden crest]

ok

lemme try

[buoyant mural]

GeyKey means even if held

So not press

Hold

[sudden crest]

ummm

now the second dialogue gets skipped

while the first and third get played

[buoyant mural]

Use GetKeyDown(KeyCode.E) instead of "E" won't fix your problem but it's a better way

[sudden crest]

ok

[mossy snow]

Hard to say without seeing how you're actually calculating the bullet position, but they're probably both wrong since it looks like the curve has some x offset to it, which your raycast does not account for

[inland escarp]

https://paste.ofcode.org/Wxh8ktfDUF2je46nnDdr26

In calculateydev, flight time should be bullet.flighttime - it's been fixed

[buoyant mural]

You repeat and if statement twice here

Else if statement

@sudden crest

else if(b == 1){
 
count = 1;
b = 2;
return;
}
else if(b == 1){
 
count = 2;
return;
}```

You might have a mistake here

[broken light]

whats a good way to step through an algorithm and also draw the results out via gizmos ? if using VS step through the gizmos wont draw so its not helpful

its useless reading the variable data as its just too many numbers to track to know wtf is going on

[mossy snow]

the line is continuous when I run this. Raycasting does not match your trajectory and line 82 of the script you posted does integer division that zeroes out your second term

[inland escarp]

I'm trying to fix the debug ray before I attempt to implement it into the actual raycast. While the actual ray cast is continuous, you cannot turn with it.
What do you mean by second term?

[mossy snow]

(1/2 * gravity * Mathf.Pow(bullet.flightTime, 2.0f)) evaluates to 0

[sudden crest]

i see

let me try fixing it

[inland escarp]

why? flighttime increases by 0.01 every 0.01 seconds.

[mossy snow]

1/2 does integer division = 0

0 * gravity * Mathf(...) = 0

make one a float or use 0.5f

[inland escarp]

ooh, sorry. misunderstood what you said, ty

[sudden crest]

@buoyant mural now it just shows the first dialogue

and nothing else

[inland escarp]

Done that. When you said that the line is continuous did you remove transform.TransformPoint, etc. ?

[mossy snow]

no, copied as-is, moved your trajectory into start instead of on button press with no other changes

do you have any scaling on your object?

that's probably what's happening here

[inland escarp]

on my gun object

[inland escarp]

which part?

[mossy snow]

TransformDirection takes scale into account. Switch to TransformVector

[inland escarp]

Will do

[inland escarp]

That's done it, you're a legend.

Although when I look around while a bullet is moving, the bullet also seems to move around

[mossy snow]

whoops, got them reversed actually. This means your trajectory is affected by scale though, that's probably not what you want. Why not just use world position the whole way through?

yes, because you're transforming the path by the shooter's position, rotation, and scale

[inland escarp]

I cant look around if I use world position, the bullet will only fire in 1 direction

[mossy snow]

? it's just a coordinate system. Presumably your bullet should no longer be affected by the shooter's position once fired, so convert local -> world on shoot, then deal in world position thereafter. It'll make the raycasting correct too

[inland escarp]

You've lost me. I though that if it's in world space, the z axis would not be relative to the player (i.e not being transform.forward) but only being in the z direction at any given time meaning if the player is facing in the x direction the bullet would go sideways?

[simple egret]

transform.forward is "in world space"

As long as you have a way to pass that to the projectile at the right time, and you make the bullet follow that direction, it'll work

// Gun
var clone = Instantiate(prefab);
clone.transform.forward = transform.forward;

// Bullet
transform.position += transform.forward * step;

^ Will work whatever your current rotation is

[inland escarp]

I couldnt figure out a way to implement it into a raycast though, given that I already have the direction: bullet.newPosition - bullet.lastPosition

in

Debug.DrawRay(transform.TransformPoint(bullet.lastPosition), transform.TransformVector(bullet.newPosition - bullet.lastPosition), Color.green, 5.0f);

[simple egret]

As simple as calculating the direction from the last pos to the current one, with the right distance

Vector3 dir = curPos - lastPos;
float distance = dir.magnitude;
dir.Normalize();

Physics.Raycast(lastPos, dir, out _, distance);

[inland escarp]

whats curPos?

[simple egret]

No point or direction transformations, everything is in world space already

Projectile's current position

In world space

[inland escarp]

ah, for some reason i read it as cursor position

[simple egret]

Ah yeah, I guess it can be interpreted like that too

[inland escarp]

It doesn't really work as it should:

If you can see those tiny green dots

[simple egret]

Looks like the positions you feed in the direction/distance calculation aren't right

[inland escarp]

wait for debug, do I have to times the direction and distance together?

[simple egret]

Depends, are you using DrawRay?

[inland escarp]

yep

[simple egret]

Yeah you need to multiply the second arg with the distance

[inland escarp]

yep it works now

actually

[inland escarp]

It only shoots in one direction

[simple egret]

So that depends on how you move that projectile in code

[inland escarp]

How should I be moving it?
Current Code for context:

    IEnumerator CalculateTrajectory(Bullet bullet)
    {
        while (true)
        {
            bullet.flightTime += 0.1f;
            //print("Fire1");
            bullet.lastPosition.x = 0.0f;
            bullet.lastPosition.y = bullet.newPosition.y;
            bullet.lastPosition.z = bullet.newPosition.z; 
            CalculateZDev(bullet);
            CalculateYDev(bullet);
            bullet.newPosition.x = 0.0f;
            bullet.newPosition.y = bullet.startPosition.y + bullet.height;
            bullet.newPosition.z = bullet.startPosition.z + bullet.distance;

            //print("FlightTime:" + bullet.flightTime);
            print(bullet.lastPosition);
            Vector3 direction = bullet.newPosition - bullet.lastPosition;
            float distance = direction.magnitude;
            direction.Normalize(); 
            if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            {
                print("Hit.");
            } 
            Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            yield return new WaitForSeconds(0.1f); 
        }

[simple egret]

Not sure, nothing actually moves an object here. Is the bullet an object in the scene, or purely a class instance in code?

[inland escarp]

purely a class instance

[simple egret]

Okay I see, interesting way of doing it!
So, upon creating the bullet instance, you should pass whatever "forward" it needs to go into a field or property

Could be as easy as bullet.forwardDirection = transform.forward

Then you set up the movement around that variable

[inland escarp]

so once I have bullet.forwardDirection, do I add bullet.height and bullet.distance (the height and distance of the new position) onto that?

https://paste.ofcode.org/sUZt9q3Uaxuj7M8shJFvJ2

[simple egret]

I think so, if I understand it correctly the "distance" and "height" simulate bullet drop?

[inland escarp]

yup

Sorry for somewhat leaching off of you rn, I'm half asleep but want to finish this so that I can sleep peacefully instead of brainstorming how to fix this. I've been trying to fix this for a few days now.

[simple egret]

Okay I see now how it's working. So yes, you'd need to add the deviation values, move towards the next position using the "forward direction" variable, and recalculate that "forward direction" value so it accounts for the previous deviation you just applied

[inland escarp]

aight ty

[inland escarp]

Could I just add my direction variable to bullet.forwardDirection?

or am i being dumb

prior to normalizing it

[simple egret]

No these aren't related until after you shoot the raycast

If you do that, you'll lose the deviation, and your bullet will fly straight

Raycasting downwards

It'll do something like that:

Dotted: bullet travel path
Solid: raycast direction

[inland escarp]

Ook

and where do i put my bullet.forwardDirection variable once i've added distance and height to it's z and y?

[simple egret]

Summed up, the whole process goes like that:

Initialize the forward direction when the instance is created.

Compute deviation, and add it to the forward direction. Move your bullet to that new position.
Compute the direction/distance for the raycast and fire it.
Update the forward direction to be the raycast direction we just created, so devialtion is accounted for.
Repeat the past 3 instructions until the bullet needs to be destroyed

The forward direction doesn't get updated until the very end of a "step" (an iteration)

It'll look like this in the end:

(I've offset the arrows so you see them, in reality they overlap)

[inland escarp]

that's the deviation from currentposition correct? or from origin?

[simple egret]

From the current position, if you re-calculate and apply a deviation for each iteration

You do

[inland escarp]

would that not just be direction then?

as we're doing current - last?

[simple egret]

Yep; but current is the one after you apply the deviation

[sharp saddle]

I'm trying to make a randomly generated map with rooms that connect with eachother here is my script: // Add an opening to the connector room where the new room is attached
GameObject connectorRoom = GameObject.FindGameObjectWithTag("Connector");
Vector3 openingPosition = connectorRoom.transform.InverseTransformPoint(newPosition);
if (opening == Vector3.forward)
{
connectorRoom.GetComponent<Room>().AddOpening(RoomOpeningType.Front, openingPosition);
}
else if (opening == Vector3.right)
{
connectorRoom.GetComponent<Room>().AddOpening(RoomOpeningType.Right, openingPosition);
}
else if (opening == Vector3.back)
{
connectorRoom.GetComponent<Room>().AddOpening(RoomOpeningType.Back, openingPosition);
} I'm getting the error NullReferenceException: Object reference not set to an instance of an object
Generator.Start () (at Assets/scripts/Generator.cs:113) and I'm not sure what to do. I've already tagged the prefab of the connector as a "Connector".

[bronze rampart]

transforms are not static the origin is being updated

[simple egret]

So you can't know the value of current before you apply the deviation, and apply that to your position

In my schema above, there would be 4 deviation recalculations (don't forget the one at the starting point)
So, 4 positions moves, 4 previous-to-current-direction calculations, 4 raycasts, and 3 "forward direction" recalculations (since the first one is pre-calculated when you spawn the bullet)

[warm wren]

What is line 113

[sharp saddle]

connectorRoom.GetComponent<Room>().AddOpening(RoomOpeningType.Right, openingPosition);

[simple egret]

You'll have to debug a bit as there are two possibilities here. Either connectorRoom is not assigned (is null), or it didn't have a Room script attached at the time this code ran

[sharp saddle]

I reran the game and it gave me the same error message so I am assuming it would have to be the first one but is connectorRoom not assigned throuh the connector tag?

[simple egret]

Through a tag?

Ah yeah right

If it was null it would have thrown the error on the line where you do the InverseTransformPoint stuff

So, it doesn't have a Room component attached

FindObjectWithTag might be picking up another object you tagged "Connector" by accident?

[inland escarp]

Where'd I go wrong? It doesn't work.

    IEnumerator CalculateTrajectory(Bullet bullet)
    {
        while (true)
        {
            bullet.flightTime += 0.1f;
            bullet.lastPosition = bullet.newPosition;
            CalculateYDev(bullet);
            CalculateZDev(bullet);
            bullet.forwardDirection.y = bullet.height;
            bullet.forwardDirection.z = bullet.distance;
            
            bullet.newPosition = bullet.forwardDirection;
            
            Vector3 direction = bullet.newPosition - bullet.lastPosition;
            float distance = direction.magnitude;
            direction.Normalize(); 
            if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            {
                print("Hit.");
            } 
            Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            yield return new WaitForSeconds(0.1f); 
        }
    }

[simple egret]

Again, you don't touch the forward direction until the very end

And especially don't put the deviation values in it!

[inland escarp]

Isn't that step 2?

[simple egret]

You add them to the current position, to get the new position

bullet.newPosition.y += bullet.forwardDirection.y + bullet.height;

[lament ocean]

I've been looking around and I cant seem to find a nice way to handle collision between different teams and their projectiles. Would I really just have to make a collision layer for each teams projectile and units?

I'm looking for this kind of interaction
Every team should collide with eachother and not themselves
Every teams projectiles should collide with eachother but not their team or their teams projectiles

[inland escarp]

Like this?:

    IEnumerator CalculateTrajectory(Bullet bullet)
    {
        while (true)
        {
            bullet.flightTime += 0.1f;
            bullet.lastPosition = bullet.newPosition;
            CalculateYDev(bullet);
            CalculateZDev(bullet);

            bullet.newPosition.y = bullet.forwardDirection.y + bullet.height;
            bullet.newPosition.z = bullet.forwardDirection.z + bullet.distance;
            
            Vector3 direction = bullet.newPosition - bullet.lastPosition;
            float distance = direction.magnitude;
            direction.Normalize(); 
            if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            {
                print("Hit.");
            } 
            Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            bullet.forwardDirection = direction;
            yield return new WaitForSeconds(0.1f); 
        }
    }

[simple egret]

Almost, += for the two newPosition sets

Otherwise they'll stay near the world origin as it's not added to the current position anymore

[inland escarp]

still remains in same direction:

[simple egret]

Maybe it's an optical illusion with the grid, but I see a drop here

[inland escarp]

Oh no, it does drop. The gun is facing the opposite direction.

[proud juniper]

Do any solo devs have insight on what ticketing systems they use to ticket work on their projects, if any do? I find that without using some kind of system (ie, Trello, Monday, a spreadsheet, something) I get way too disorganized too fast.

[inland escarp]

I'm shooting in the air here

[sharp saddle]

I was able to delete the tag after removing it from the one connector prefab I knew the tag was applied to meaning I didn’t apply the tag to any other game objects accidentally.

[simple egret]

Can you debug-log out the bullet.forwardDirection before the while loop in the coroutine?

[inland escarp]

IEnumerator CalculateTrajectory(Bullet bullet)
    {
        print(bullet.forwardDirection);
        while (true)
        {
            bullet.flightTime += 0.1f;
            bullet.lastPosition = bullet.newPosition;
            CalculateYDev(bullet);
            CalculateZDev(bullet);

            bullet.newPosition.y += bullet.forwardDirection.y + bullet.height;
            bullet.newPosition.z += bullet.forwardDirection.z + bullet.distance;
            
            Vector3 direction = bullet.newPosition - bullet.lastPosition;
            float distance = direction.magnitude;
            direction.Normalize(); 
            if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            {
                print("Hit.");
            } 
            Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            bullet.forwardDirection = direction;
            yield return new WaitForSeconds(0.1f); 
        }
    }

No output

[simple egret]

Then that code isn't running, or you disabled info messages in the console

[inland escarp]

wait i may have collapsed everything

[broken light]

Any one know why i get "supplied vertex array has less vertices than triangle array" and for uvs i get "supplied array needs to be same size as mesh.vertices array"

For this code:

        int vertexIndex = 0;
        for (int i = 0; i < _data.Triangles.Count; i++)
        {
            Triangle triangle = _data.Triangles[i];

            _verts.Add(triangle.A.xyz());
            _verts.Add(triangle.B.xyz());
            _verts.Add(triangle.C.xyz());

            _uvs.Add(triangle.A);
            _uvs.Add(triangle.B);
            _uvs.Add(triangle.C);

            _tris.Add(vertexIndex);
            _tris.Add(vertexIndex+1);
            _tris.Add(vertexIndex+2);

            vertexIndex += 3;
        }

[inland escarp]

This is the output: (0.27, -0.31, 0.91)

I accidentally collapsed the logs

[simple egret]

Okay that's definitely not pointing where the bullet is going

The vector looks like a correct direction vector, so the issue does not come from there

Try stripping out the deviation calculations for now, and try again but this time by adding a constant value each step, on one line, like so

bullet.currentPosition += bullet.forwardDirection * 100;

That should be propelling it at 10 units per second towards whatever forward direction

And strip the code after that line too

[inland escarp]

Vector3 direction = bullet.newPosition - bullet.lastPosition; 

this?

[simple egret]

Yeah, comment all of this onwards

Except the yield statement

[inland escarp]

        print(bullet.forwardDirection);
        while (true)
        {
            bullet.flightTime += 0.1f;
            bullet.lastPosition = bullet.newPosition;
            CalculateYDev(bullet);
            CalculateZDev(bullet);

            // bullet.newPosition.y += bullet.forwardDirection.y + bullet.height;
            // bullet.newPosition.z += bullet.forwardDirection.z + bullet.distance;
            
            bullets.newPosition += bullet.forwardDirection * 100;

            // Vector3 direction = bullet.newPosition - bullet.lastPosition;
            // float distance = direction.magnitude;
            // direction.Normalize(); 
            // if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            // {
            //     print("Hit.");
            // } 
            // Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            // bullet.forwardDirection = direction;
            yield return new WaitForSeconds(0.1f); 
        }

Like so?

[simple egret]

Yep looks good

[inland escarp]

what do you want to see?

do you want me to print newposition?

[simple egret]

Ah forgot there's no object in the scene sorry
Draw a ray from last position to new position in that loop

[inland escarp]

Debug.DrawRay(bullet.lastPosition, bullet.newPosition - bullet.lastPosition, Color.green, 15.0f);

@simple egret

[simple egret]

Does it draw towards where you're shooting at?

[inland escarp]

yup

[simple egret]

Testing stuff on my side, hang on

[inland escarp]

aight

[ocean osprey]

Is it possible to access MonoBehaviour scripts through editor window scripts?
If so how

[simple egret]

Okay I came up with something that works, but the catch is that the drop is measured with a Quaternion 💀

But it seems like it's working correctly

[solemn raven]

hi is it possible to initialize an empty gameobject without a prefab ?

[simple egret]

new GameObject()

[inland escarp]

How does that even work?

[simple egret]

The drop is a rotational value instead of two values. Like "-5 degrees per step"

[solemn raven]

Thanks 🙂

[simple egret]

Code sample. No Unity so I had to hard-code the quaternion XYZW values taken from an online converter (it wouldn't let me use Quaternion.Euler)

But you can see the direction gradually falling over each iteration, and the Y position falls exponentially

lmao if I put on more iterations the bullet goes in circles as expected

3am, it's bed time
Feel free to ping me if you solve it in the meantime

[ocean osprey]

Is it possible to access MonoBehaviour scripts through editor window scripts

[solemn raven]

hey,
what is the right way to set Rect transform ?

is it LocalPosition or something else ?

i meant via code

I wanna set left, top,Pos Z , right , Bottom to zero and also change the anchor present

[somber tapir]

rectTransform.anchorMax, rectTransform.rect.left. There is also rectTransform.anchoredPosition for moving it around, but it's a real pain to do this via code, I would recommend using Prefabs and Unitys Layout System.
If you make changes to the rect you also have to reassign it:

RectTransform t = GetComponent<RectTransform>();
Rect rect = t.rect;
rect.left = 4;
t.rect = rect;

[earnest epoch]

@solemn raven Consider setting .anchorMin, .anchorMax, anchoredPosition and .sizeDelta. The transform stuff in the inspector is derivative of how the underlying data is actually stored.

[solemn raven]

Thanks ! ❤️

[solemn raven]

Thanks for the tip ❤️

[marble halo]

Ok so I'm trying to make it so the player slides down slopes that are too steep

    {
        if (Physics.SphereCast(player.transform.position,Controller.radius,Vector3.down,out slopeHit,player.groundMask))
        {

            hitNormal = slopeHit.normal;
            return Vector3.Angle(Vector3.up, hitNormal) > Controller.slopeLimit;
        }

        else
        {
            return false;
        }
    }```

but for some reason the sphere cast isnt working

for some reason if the direction is something other than down it works, but it doesnt work right

[earnest epoch]

Vector3.Angle() looks suspicious to me. Maybe print that line while playing to see if it gives the result that you expect? Otherwise, is the sphere casting far enough for your case?

I would generally use a dot product of your normal and the world up direction rather than measure in degrees (+1 for if normal is same as up, -1 if they're totally opposite). @marble halo

[marble halo]

I tried printing and I always get an angle of 0 for some reason

[earnest epoch]

The normal of a floor is "up", if your controller is being pulling into it from above.

So the good news is that it seems your code is working... 😄

[marble halo]

where would i use dot

[earnest epoch]

You don't need to do that, I think your approach is fine. Just consider this: Vector3.up - Vector3.up == ?

Remember, your floor normal is looking at the sky, assuming gravity is pulling your character down. @marble halo

[marble halo]

but the sphere cast still gets nothing

why wont the damn thing work?

also slopes dont point up

[earnest epoch]

Oh, if you're getting 0 on slopes too, then I misunderstood what you were reporting.

Are you possibly interacting with yourself? Edit: probably not if you're checking for ground.

[marble halo]

player.groundMask this should only check the ground layer though?

its not set to player

[earnest epoch]

If your ground layer and layermask contain the right values, then you would think so, yes.

Your Angle math is backwards anyway; what I mentioned earlier is definitely still going to be an issue.

[proud quartz]

hello! I'm experimenting with changing a UI panel's rectTransform through code but don't know exactly how. Do any of you have any experience with this?

[earnest epoch]

#archived-code-general message Was just recently discussed, actually.

[proud quartz]

perfect. Thank you!

[earnest epoch]

@marble halo You're definitely colliding with something if your code is getting far enough to report 0. I'm thinking that you might be measuring an interaction with your own player because of how the value never changes. Use of Angle() should give you 0 when hitNormal is also exactly Vector3.up. Does your player stay upright at all times? That would give a 0 result if it's being matched by your ground mask.

[marble halo]

player does stay upright at all times

not even sure how you can rotate the character controller

[earnest epoch]

@marble halo Well, since you're for sure colliding with something, have you considered checking hitInfo for what you're colliding with?

@marble halo You ought to be able to get to the name of the object via hitInfo.collider.gameObject.name

[lapis vine]

for some reason, when trying to read properties/keywords from a material, my script doesn't grab the latest ones (because i assume they are not saved / written to disk) until i recompile something (such as the script). i assumed it may be a problem with the material not saving (and i know calling saveassets is asynchronous but even if i call a wait it still runs into the same issue). i tried about every AssetDatabase, EditorApplication and EditorUtility function to see if i could try and force save before reading and i've gotten nothing yet. any one have any ideas :/

[hollow dust]

how do i have a game object thats attached to my character face the direction my player is facing? in this case i have an arm thats seperate from the capsule player and it kinda, well, looks in its own direction, so i wrote some code and it kind of works? the object faces in the direction im looking, it just does not actually rotate the arms fully with my character, here ill send a vid but heres the code

public class Orientation : MonoBehaviour
{
    public Transform orientation;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {

        Vector3 position = transform.position;
        Vector3 direction;



        direction = orientation.forward + transform.position - position;
        transform.rotation = Quaternion.LookRotation(direction);
    }
}

[marble halo]

I’ll try that when I get back

[earnest epoch]

To be clear, the arm isn't parented to the "character" or "player", right? Are these two words that represent the same object?

[hollow dust]

the arm is parented to the character, also heres the vid

wait why is that done as a file

ohhh do i need to convert it

[earnest epoch]

Oh I see. This likely isn't really a code issue.

[hollow dust]

there we go'

[earnest epoch]

You could solve this in code, but the simplest solution would be to parent the arms to yet another child object so you have Player > ArmPivot > ArmModel in the hierarchy.

[proud quartz]

agreed

[earnest epoch]

Let the child ArmPivot rotate and use the child of that child to offset your arm forward into your view.

[hollow dust]

ohhhh

so create empty --> armpivot then drag my arms into that

and parent the armpivot to my pc controller

[earnest epoch]

Yes. This is a good habit to get into whenever you're setting up rigs or camera dollies.

Frankly, if all you need is to have your hands follow the pitch of your camera, you shouldn't have to control the yaw rotation of your arms at all; can't they just rotate with the parent capsule? @hollow dust

[hollow dust]

i tried, albiet before the new parenting stuff and it kinda just kept facing one way

[earnest epoch]

Capsule rotates with yaw, ArmPivot rotates with pitch. The arms are actually a further child of ArmPivot. You might be able to simplify all of this.

[hollow dust]

i got it kind of working, it just only does it backwards lol

dw

i can fix it on my own from here

tysm!!

[mossy vine]

Just to make sure. when setting a variable. the difference between public and private is that public allows me to acces that variable in other scripts and private makes it exclusive to that script

also i can edit the variable in the inspector. right?

[earnest epoch]

Exactly.

[hollow dust]

yep! but if you want a variable to be private but still accessible in the editor use [SerializeField]

[mossy vine]

oh snap THATS what serialized is for

oh so its private i ust wanna edit it in the inspector without having to go back and forth to the code? Do people leave it serialized of just when they are developing

[earnest epoch]

[SerializedField] is useful if you want to be able to modify the data but don't want other objects in your game to be able to reference the data through scripts. Those private fields aren't accessible by other objects.

The reason this works is because [SerializedField] has the secondary effect of making the field read/writable by Unity's design-time tools. The inspector sort of doesn't care what is public or private, but happens to treat any public data on components as serialized anyway. There isn't much rhyme or reason to it. You the user aren't what public/private keywords are trying to protect your objects' data from anyway.

[mossy vine]

ahhhh ok im starting to get it. before i know it imma be op in code like you

[earnest epoch]

Think of it like this: the inspector greedily serializes anything public because, since it's public, there shouldn't be any harm in doing it.

[mossy vine]

im learning about simple types now. I did mugen for years so variables are entirely new to me. Different is that our stuff was preset all we had to do was put in the number

[earnest epoch]

https://www.youtube.com/watch?v=exqlMRLTESA Lemme plug, then.

Also, what I say at the end about string == char[] is only partially true as strings are immutable in C#. I'm going to reupload this video with corrections in the next day or so.

[mossy vine]

oh nice. you did a vid. let me check it out and save it to my learning playlist. TYSM!!!

[plucky karma]

Very nice! Feels like I'm watching rust tut 😅

One suggestion would be to show the website where value type's domain is displayed as a table struct - as well as a link reference to the documentation for user who wants to read more into! @earnest epoch

[earnest epoch]

Yeah, that would be good to mention. I tend to be a bit scatterbrained when trying to talk/think/type.

[plucky karma]

Do express yourself, because eventually you can edit your video. It's fun to edit your footage to help deliver contents clear and informative.

[whole comet]

hi! i'm trying to implement my own version of the vertex lighting parameters for unity_LightAtten. the docs claim y is 1/cos(spotAngle/4) but this cannot possibly be right.
i've plotted out a bunch of bunch of spot angles and their values grabbed from the frame debugger below. spot angle is on the left

{179, 1.4256}
{170, 1.538174}
{160, 1.688059}
{120, 2.732051}
{105, 3.470881}
{100, 3.794776}
{90, 4.613126}
{80, 5.75877}
{70, 7.431356}
{60, 10.00997}
{50, 14.28811}
{40, 22.16552}
{30, 39.18637}
{20, 87.81952}
{15, 155.9076}
{11, 289.6719}
{10, 350.4453}
{1, 35025.5}

unfortunately i dont think the source code is available for the built in pipeline or whichever part of the codebase actually calculates these variables so i can't just go check

anyone have any ideas?

[tidal locust]

Hey Team, I am trying to make night club laser, What I have is a line render and with that, I was told to use Partical system. How ever with saying that, I am trying to make more then one laser beam and something that looks some what real. This is my code so far.

using UnityEngine;
using System;

public class LaserController : MonoBehaviour
{
    public float laserLength = 50f;
    public float laserDuration = 0.1f;
    public Color laserColor;


    
    public float fireDelta = 0.5F;
    private LineRenderer lineRenderer;
    


    private void Start()
    {
        
        Debug.Log("this is working");
        lineRenderer = GetComponent<LineRenderer>();
        lineRenderer.material.color = laserColor;
        lineRenderer.enabled = true;
    }

    private void FireLaser()
    {
        lineRenderer.enabled = true;
        lineRenderer.SetPosition(0, transform.position);
        lineRenderer.SetPosition(1, transform.position + transform.forward * laserLength);

        // Adjust the laser light range based on the laser length
        
        Invoke("StopLaser", laserDuration);
    }


    void Update()
    {
        float[] spectrum = new float[256];

        AudioListener.GetSpectrumData(spectrum, 0, FFTWindow.Rectangular);

        for (int i = 1; i < spectrum.Length - 1; i++)
        {
            float tmp = spectrum[i] * 5;
            if (tmp >= 1.2f )
            {
                FireLaser();
            } 
            Debug.Log(tmp);
            
        }
    }

    private void StopLaser()
    {
        lineRenderer.enabled = false;
    }
}

so this code is listening to a audio track, for its highs, once done so. it will trigger the lasers.
But my lasers are not looking like lasers, I am not sure how to get the partical system to work with the line render

This is what i have

[leaden ice]

to make them look "laserish" you'd probably want to:

• give them an emissive material
• use the Bloom postprocessing effect

[tidal locust]

hmm alright ill give that a shot, so that should add light to it right, now this is in a 3d template, I am not in a universal pipeline. would that still be ok, or would it not show correctly ?

[leaden ice]

i have no idea what your project template has to do with anything other than the fact that the different render pipelines have different postprocessing frameworks

you'll want Bloom either way.

[tidal locust]

ahh alright, thank you for the advice 🙂

[sharp saddle]

I'm trying to make a survival horror game in which the player searches through a randomly generated assortment of rooms, however I keep getting an error that "NullReferenceException: Object reference not set to an instance of an object Generator.Start () (at Assets/scripts/Generator.cs:111)". Here is the pastebin if someone would like to take a look: https://pastebin.com/ASM7vaqx

Main issues seem to be from 105 - 120

[knotty sun]

connectorRoom.GetComponent<Room>()

must not have a Room component

[cosmic rain]

Your error literally tells you where the issue is(line 111). You don't need to guess...😅

[tidal locust]

Alright, I have got something working and it is looking really good, now to add more lasers to one component

[merry vigil]

p = new Paragraph(string.Format("xxx - yyy : {1}", 0, 9));
p.Alignment = Element.ALIGN_CENTER;
document.Add(p);

Friends, I have such a code snippet. But this prints plain text to the pdf file. I want to make one image print of it. How can I do it ?

[sharp saddle]

is the "Room" component not the same as the class defined at the beginning of the script?

[cosmic rain]

It probably is, but it doesn't prevent it from not being on the gameObject.

[sharp saddle]

Welp the problem was that I named the script something i shouldnt have thanks for your help thouhg

[cosmic rain]

Script name and class name are 2 different things. Although they have to match for a MonoBehaviour to work propely

You enable looping in the animation import settings. As for making it play when moving, it depends on whether you're using the animator or something else.

yes

Animation import settings. Not the animation component.

For that, you should do the beginner pathway on unity learn. Or read the manual.

[mossy snow]

you'll be back for another fish though

[cosmic rain]

Nope. We don't appreciate people that don't put the effort here.

I feel like you didn't look at the manual after all...

I'm saying that if you did look in the manual, you should know the answer.

Where the manual is?

google "unity manual"

[quartz folio]

!manual

[tawny elk]

📖 The Unity User Manual helps you learn how to use the Unity Editor and its associated services. You can read it from start to finish, or use it as a reference https://docs.unity3d.com/Manual/index.html

[dim hill]

Hey, I have a UI button that triggers an upgrade for an object in my game, however for some reason when i press the button the function that it activates runs twice. is there any reason for this?

Here is my code for the listener

rangeButton.onClick.AddListener(RangeUpgrade);

And here is my code for the upgrader

 public void RangeUpgrade()
    {   
        print("Range upgrade executed");
        
        if (statsManager.money >= rangecost && rangelvl <4);
        {
            statsManager.money -= rangecost;
            rangelvl += 1;
            print("range lvl ="+rangelvl);
            print("money ="+ statsManager.money);
            
        }
    }

[quartz folio]

if it runs twice, you either click it twice, or you subscribe twice

(subscribing twice can include not unsubscribing when you should, and leaving something subscribed where it just gets called again)

[dim hill]

so i should have a bool that activates when the button is pressed and run the code through that?

or i change the buttons interactability

[quartz folio]

No, just make sure you subscribe only once? And any time your objects are destroyed make sure you call RemoveListener

[dim hill]

oh alright, thanks!

[inland escarp]

    IEnumerator CalculateTrajectory(Bullet bullet)
    {
        print(bullet.forwardDirection);
        while (true)
        {
            bullet.flightTime += 0.1f;
            bullet.lastPosition = bullet.newPosition;
            CalculateYDev(bullet);
            CalculateZDev(bullet);

            bullet.newPosition.y += bullet.forwardDirection.y + bullet.height;
            bullet.newPosition.z += bullet.forwardDirection.z + bullet.distance;
            
            //print(bullet.newPosition);
            //bullet.newPosition += bullet.forwardDirection * 100;

            Vector3 direction = bullet.newPosition - bullet.lastPosition;
            //print(direction);
            float distance = direction.magnitude;

            print("Before" + direction);

            direction.Normalize(); 

            print("Normalized" + direction);

            if (Physics.Raycast(bullet.lastPosition, direction, out _, distance))
            {
                print("Hit.");
            } 
            Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);
            //Debug.DrawRay(bullet.lastPosition, bullet.newPosition - bullet.lastPosition, Color.red, 15.0f);
            bullet.forwardDirection = direction;
            yield return new WaitForSeconds(0.1f); 
        }
    }

Trying to make a raycast ballistic system where bullets have no real object, and are only class instances. My main problem is that my ray is not shooting in transform.forward, but instead in the global z axis. Any help?
Sorry if you've seen this again, I still haven't worked it out.

[cosmic rain]

Is that debug ray what you're referring to?

Debug.DrawRay(bullet.lastPosition, direction * distance, Color.green, 5.0f);

[inland escarp]

Yes

[cosmic rain]

The way you move the bullet is very weird. Can you explain the logic behind it?

bullet.newPosition.y += bullet.forwardDirection.y + bullet.height;
bullet.newPosition.z += bullet.forwardDirection.z + bullet.distance;

Also, why the y z axis and not x?

Why not just add a vector?

[inland escarp]

z axis is forward axis

[cosmic rain]

Why?

[inland escarp]

Because it's the forward axis generally?

[cosmic rain]

ummm

[inland escarp]

transform.forward is in the z axis

[cosmic rain]

if you're talking about local space, yes

does that mean that newPosition is in local space?

transform.forward is not in the z axis btw. That statement doesn't make any sense

[inland escarp]

https://docs.unity3d.com/ScriptReference/Transform-forward.html

It states: Returns a normalized vector representing the blue axis of the transform in world space.

[cosmic rain]

Yes, that is correct. It tells you that transform.forward aligns with the local space z axis. But it's not the same as transform.forward is in the z axis

[inland escarp]

that's just being pedantic

[cosmic rain]

And what's more important, raycasts take world space, not local space.

[cosmic rain]

No, there's an important distinction that is the key to solving your issue.

Since you're dealing with "imaginary" objects without resorting to any local-world space transformations, there's no point at all in using the local space.

[lapis tiger]

just started Unity a day ago and i am lovely it, honestly switching from roblox's lua to C sharp is annoying but its really funny ngl.

[wintry crescent]

I've got a bit of a silly question about best practices
If class A makes an object of class B
And class C needs to access said object
and now:

1. should it get a reference to class A, and get the public reference to the object through A.bObject
2. should class A get a reference to class C, and call something like C.GiveReferenceToBObject(bObject)
3. should class D create the object B, and both classes A and C have total access to it?
4. Should class C do something along the lines of this.bObject = a.bObject and use that?

As of right now, there is only one instance of B
Which means that option 4. seems to be the best
But, it is possible that in the future, B will be replaced by another instance of B, at an arbitrary point in time
which points to other options
How concerned should I be with the possibility of it happening?
I'm conflicted
On one hand, option 4 seems to be the simplest and cleanest option which is good, but on the other, making it so that class C has to be modified when changing class A is a bad practice

I am not sure if this is the right place to ask, but I don't know where else I should go

[cosmic rain]

Is that a quiz?
Option 2 seems like the one that would lead to the cleanest code in my opinion. But it also depends on the relationship between these 3 classes.

[stable rivet]

it depends on the situation. assuming an object of class B is created at an unknown time after objects of class A and C already exist, depending on the complexity of the object being created, you might need a separate builder class (class D) that creates class B. it would then be the responsibility of that builder class to update whatever needs to be updated

[wintry crescent]

It's not a quiz, I'm just thinking about a situation I had a couple of days ago
But what if more classes need to use it down a line?
Keep an array of classes inheriting from interface iNeedsBReference in class A?
I'm trying to figure out a general good approach

[stable rivet]

but this is a pretty vague answer because again it really depends on your situation

[wintry crescent]

But then again, this could lead to just more and more builder classes appearing left and right, every time this situation happens
Which is introducing unneded complexity to a simple problem

[cosmic rain]

You need to clearly define the relationship between these classes first. Then the answer should be obvious.

[stable rivet]

unfortunately, complexity and modularity/decoupling go hand in hand. but yes, any solution to any problem will introduce some complexity, which varies depending on how much abstraction you want to introduce

[wintry crescent]

I'll be honest, I don't exactly remember the original situation that has caused this question
So right now, I'm thinking of a best general situation for this type of problem

[wintry crescent]

So the question now is, how to decide how much abstraction is needed for a given problem, in order to be reasonably future-proof and ready for change, but without making it overly complex

Which is surely a super easy question with a simple answer

...great

[wintry crescent]

You two seem to be more experienced programmers than me
How do you even deal with situations when it comes down to a question as general and with no answer, as this one?

Because at this point I am tempted to roll a die on a case by case basis, when I have absolutely no clue what to pick

[cosmic rain]

The general solution is to define the relationship between the classes. There's usually a hierarchy(tree) of relationships. The dependencies should usually be between a 2 type linked in the hierarchy(parent-child). Ideally it should also be 1 sided dependency. But then again, not all cases have to follow the same rule, that's why it's important to consider the solution within the context of the problem.

[cosmic rain]

You usually start with a specific case, then extrapolate from it and see if you can apply some common pattern to more cases.

[swift falcon]

if anyone has an idea how to fix this problem please tell me asap:

I have a URL for a unity web request... i need to change a part of it...
so far I have been using _url = originalString.Replace("oldValue","newValue");

but when I send the unity web request i get "malformed url"... how can I solve this please (if something is wrong with it)

please keep in mind, when i write the new url into my web browser the result is correct... I get the result I want

[cosmic rain]

But overall, I guess it comes with experience. The more different cases you have worked on in the past, the easier you are to come up with some solution to a new problem.

[wintry crescent]

That's what I usually do, it's a really common problem
It's just that last time, I happened to reach a situation that was basically as similar to the abstract representation as I provided, as possible, so I was honestly lost

[wintry crescent]

I suppose that is what it ultimately comes down to

[cosmic rain]

There must have been something non abstract about it though. You'd never have classes named "A", "B", "C" in an actual project.😅

[cosmic rain]

Will need to share some code and the actual error.

[swift falcon]

I will share the code but there are no errors

[wintry crescent]

Well, yeah, but the classes had nothing else in common
Which points to the solution with class D, but as I said there are problems with it too, and B was just a random dictionary

[wintry crescent]

No clue which project it was even in, let alone what part of it, so yeah XD
I'll remember to save it next time it happens

[cosmic rain]

This is not an error though. It's a log from SendSMS. Is that your script?

[wintry crescent]

Lmao thought that was to me for some reason, oops XD

[swift falcon]

yes.. I am sending a unity webrequest and debugging the www.error if my request's result isn't a success

[cosmic rain]

Wdym by "had nothing in common". Why would they need to reference each other then?

If they have a dependency, it means that they have some kind of relationship

[wintry crescent]

Except for that one dictionary

[cosmic rain]

What dictionary?

[swift falcon]

    async Task<byte> SendingBadSMS(string phonNumber, string message)
    {
        //string _getUrl;
        string stupid = "https://website.something.com:8002/api?username=asfasfasf&password=asfasfasfasf&ani=QuickShare&dnis=919000412202";
        

        string _getUrl = stupid.Replace("919000412202", phonNumber);

        Debug.Log(_getUrl);
        using (UnityWebRequest www = UnityWebRequest.Get(_getUrl)){
          //sending 
UnityWebRequestAsyncOperation task = www.SendWebRequest();

            while (!task.isDone) { await Task.Yield(); }

          if (www.result != UnityWebRequest.Result.Success)
            {
                Debug.Log(www.error);
                return 0;
            }
            else
            {
                Debug.Log("Text= " + www.downloadHandler.text);
                Debug.Log("downloadHandler= " + www.downloadHandler);
                return 1;
            }



        }
}

[wintry crescent]

That's the point, I don't remember now :/
I guess I'll report back if I have a more concrete situation than this

[swift falcon]

the www.error IS malformed url... but if i copy and past the same url into the webbrowser it works perfectly

[cosmic rain]

What does the Debug.Log(_getUrl); print?

[plush sparrow]

int[] sarr ={1, 2,3,4};
if(val.Contains(sarr)
{    
}

[swift falcon]

the link that I post into the web browser

[plush sparrow]

Getting how do I fix this?

[quartz folio]

fix what? Your code that shouldn't compile?

[simple egret]

Fix what? There are multiple compiler errors there

[maiden junco]

im getting these errors when trying to building the project

anyone who has experienced those?

[cosmic rain]

Don't you need to send the request? www.SendWebRequest();

As they do in the example here
https://docs.unity3d.com/ScriptReference/Networking.UnityWebRequest.Get.html

[swift falcon]

I did send it... sorry forgot to include that in the code snippet...

[cosmic rain]

Okay, then there must be something wrong with your url. Perhaps there are hidden character, like line breaks or something.

[simple egret]

You should post the log you get in the console, maybe it's not correctly URL-encoded

Like a space in the middle that should be converted to %20 or somethin'

[swift falcon]

the url works perfectly fine when I post it in the web browser.... no errors or anything

[quartz folio]

how do you get phonNumber

[simple egret]

Your browser converts the URL for you as you submit it, not Unity

It might be stripping out characters

[swift falcon]

ok how do I convert my url

[simple egret]

No wait

[cosmic rain]

When you copy the url it might omit line breaks and stuff.

[simple egret]

You first ensure that the value you get in Unity is correct

[swift falcon]

IT IS 100%

[quartz folio]

You keep saying that with 0 proof

[quartz folio]

.

[simple egret]

I'm betting on the following:

the phone number is retrieved from an Input Field's underlying TextMeshPro component, instead of the InputField itself

[swift falcon]

we tested it before using a specific number and it worked, now even if i change this number to that one it wont work

[quartz folio]

Cool, how do you get phonNumber?

[swift falcon]

ther's no tmp component or any input field... just a function reading a csv file

[simple egret]

Okay finally more info

[cosmic rain]

That could be reading line breaks as well

[simple egret]

You should loop over the string, and print out each char value, and check that there's no control characters

[quartz folio]

At least check that the phonNumber is the length you think it is

[swift falcon]

why does NO ONE BELIEVE THAT I KNOW HOW TO TAKE A LINE WITHOUT TAKING ANY MORE LETTERS

[simple egret]

Yeah if you "see" 10 chars, but num.Length returns 11, something's up

[swift falcon]

🤦‍♂️

[simple egret]

Why are you so difficult to help?

Computers make no mistakes

[swift falcon]

i made sure of that too

[plush sparrow]

How do I check if an int array contains a sequence of numbers?

[quartz folio]

Then just say so instead of being a prick about it??

[swift falcon]

i dont think the problem is the computer ... i tested the number of letters and everything

[plush sparrow]

Eg
How do I check if int array contains these values {1, 2,3,4}?

[quartz folio]

https://learn.microsoft.com/en-us/dotnet/api/system.linq.enumerable.sequenceequal?view=net-8.0

[simple egret]

Do you know how to use the VS debugger? You should use that now to go through the code line by line and inspect the variable's contents. Can't be of more help, if you think the data is correct but Unity says that it isn't, then the data isn't correct

[swift falcon]

ill do that

thanks

[plush sparrow]

I want to check if it contains the values or not
Not check sequence

For eg

My array can have {1, 2,3,4,5,6,7,8}

I want to check if my array contains {2, 3,4,5}

[quartz folio]

It would generally be easier if you used a HashSet, which has a Contains function that does this sort of thing quickly

[plush sparrow]

I checked hashset
But Idk how it can be implemented in this scenerio

[quartz folio]

iterate over your array and check whether the item is contained in the set

[plush sparrow]

I want to check for multiple elements tho

Like check for elements {2, 3,4} in an array having {1, 2,3,4,5}

[simple egret]

Iterate over your array and check whether the item is contained in the set

For each element, is it contained in the array? Yes - continue to the next element ; No - the array doesn't contain all the expected elements

[maiden junco]

.

[cosmic rain]

You probably have a probuilder editor-only asset included/referenced somewhere in your scene/prefabs

[plush sparrow]

I have an array val

int[] val = new int[5]
val.Sort() 

Is not working

[cosmic rain]

What's not working?

[plush sparrow]

No overload for method sort

I am getting this error

[quartz folio]

I would google how to sort an array in C#

[cosmic rain]

Oh, the message above is the error?😅

[maiden junco]

how can i look for what asset is editor only?

[cosmic rain]

Well, it's mentioned in the error: MeshFilter Icon. Try searching it in the hierarchy.

[maiden junco]

so i should search "t:MeshFilter" and then? I already looked for each object that has a mesh filter but i dont find labels like "Editor Only" or similar

[cosmic rain]

MeshFilter Icon

not a mesh filter

The assets in question is called MeshFilter Icon

It's probably a sprite..?

[maiden junco]

nope

i have only 3d objects

and some ui

and im using probuilder

[cosmic rain]

Well, maybe it's used by ui?

UI uses sprites

[maiden junco]

i looked for all my ui objects and nope

they only use things like UISprite or Checkmark sprites

[cosmic rain]

Welp that's what the error says.

make sure none of the sprites are unity/probuilder default resources

You can't use them in a build.

[maiden junco]

oh

but

i used them in the past builds of the same projects

how

[cosmic rain]

Well, some of them. Some of them could be editor only

[maiden junco]

i used the same pause menu in 2 weeks

oh

ok lemme try

[cosmic rain]

In general it's a bad idea to use built-in assets.

[maiden junco]

yeah i know

i was so bored to create them

it uses a mesh filter icon, that is the icon that is used on the ProBuilder Mesh Filter component on some of my gameobjects in my scene, so maybe is that the problem?

[cosmic rain]

That's literally the name I mentioned like 3 times. 😅
And it's in the error too.

The assets in question is called MeshFilter Icon

Well, it's mentioned in the error: MeshFilter Icon. Try searching it in the hierarchy.

Did you just ignore what I was saying?

[smoky sonnet]

Hey I was wondering if anyone could help me with this. Sometimes my character (when theres a lagspike) shoots forward/left when running or walking. Weird things like this keep happening.

https://paste.md-5.net/japanejeja.cs

That's the move script

Im using blend trees btw for the animations

And this is the input manager
https://paste.md-5.net/safurexavi.cs

I've been stuck with this for so long and idk how to fix this. Any help is appreciated

[maiden junco]

nono, i was just excluding that because i have not assigned that icon to one of my sprites like buttons or images

thats it

but now im removing every reference to unity built in sprites

anyways thank you

[cosmic rain]

Ah, okay.

[sleek bough]

There's no off-topic here.

[cosmic rain]

Ok, but how is that relevant to this channel?

[lapis tiger]

oops wrong channel

sorry about that

[left gale]

Is anyone aware of issues related to use of local functions with unity? Such as possibly leaking memory

[leaden ice]

Not inherently, no. You could certainly leak memory in such a function though.

[maiden fractal]

I don't know what local functions has to do with unity specifically, neither do I understand how they would be more prone to memory leaks than regular functions...

[left gale]

Well, for example I know some historical versions of mono would generate garbage though not necessarily leak it, on some platforms with local functions. It also just wasn't supported on some console platform builds of mono

But atm I'm experiencing what looks like a memory leak, possibly native memory, after having added several local functions which enable and disable entities with rendering components

And other material property setting stuff.

Anyhow thanks for the response. I'm happy to keep using them if I can

[idle flax]

Hey all. I have a small problem concerning one of my gameplay mechanics. I have a script, which enables gameobjets to attach to each other in order to form a burger. It works perfectly, except for the fact that a base will attach itself to gameobjects that aren't already apart of a burger. I don't understand why this happens, as I've added code that should prevent this from happening. Please help!
https://gyazo.com/9761dd0e2877b2f959743f2fec5a5b17

Here's the script: https://pastebin.com/PjamEJRw

[quick token]

anyone know a way to optimize a scene with a lot of points?

im trying to create the chaos game in unity but i need to have about 2 million object to get an accurate image

maybe 200,000

only problem is it slows unity down a lot

for context its basically just a way of creating fractals

[leaden ice]

You should create them dynamically (or resize/reposition existing objects) as you zoom in and out

Rather than trying to show them all at once

That's way too many objects

You could also look into drawing this with a shader or something instead of individual objects

[blissful whale]

is it possible to check if a collider collided with more than 1 object?

[leaden ice]

Everything is possible

[rocky jackal]

how can i lerp the rotation of an object so the x and z returns to 0 but the y rotation stays the same ? i tried it like thi but it doesnt work

[blissful whale]

can you provide a link if you have one? I think I cannot search properly

[leaden ice]

You're confusing Quaternion.y with a y Euler angle

You should not ever be touching the xyzw of a quaternion basically

They are not euler angles

[rocky jackal]

so i shouldnt use quaternion.lerp ? i tried that it looked like this but it still rotatet the y axis

[blissful whale]

Okay this worked

I was typing it to OnTriggerEnter method so it did not show up

[leaden ice]

You can use quaternion.lerp, your problem is your attempt to use transform.rotation.y as if it's a y axis rotation which it is not

Now in this new screenshot you're making the same mistake again

With rotation.x

[rocky jackal]

ah thank you so it would be transform.eulerAngles.y ?

[leaden ice]

Those are not euler angles and you should stop trying to use them as id they are

[leaden ice]

Sure but there's better ways than converting everything to Euler angles

[rocky jackal]

thank you, i hate quaternions and rotation stuff

[chilly beacon]

void proceduralGen() {
        noiseMap = new float[height, width];
        // Generating random float value to use as seed
        float randomFloat = UnityEngine.Random.Range(0, 10000000f);

        // Checking if useRandomSeed Boolean is true in the inspector
        if (useRandomSeed) {
        // public int seed variable
            seed = randomFloat;
        }
        System.Random pseudoRandom = new System.Random((int)seed);

        // Offset to add to Perlin noise
        float offsetX = randomFloat + 100f;
        float offsetY = randomFloat + 200f;

        for (int x = 0; x < width; x++)
        {
            for (int y = 0; y < height; y++)
            {
                float xCoord = (float)x / width * scale + offsetX;
                float yCoord = (float)y / height * scale + offsetY;
                noiseMap[x, y] = Mathf.PerlinNoise(xCoord, yCoord);

                // Add randomization to the Perlin noise
                float randomValue = (float)pseudoRandom.NextDouble() * 2f - 1f;
                noiseValue += randomValue * 0.1f;

                // Edge of the map is water
                if (x == 0 || x == width - 1 || y == 0 || y == height - 1) {
                    map[x, y] = 0;

                } else {
                    map[x, y] = (pseudoRandom.Next(0, 100) < randomFillPercentage) ? 0 : 1;
                }
            }
        }

    }```

so i wish to make a 2d island using cellular automata and then use perlin noise fill the island with biomes i have got 70% of the code working but i want to add a **seed** for ths where the shape of the island and all the biomes within the island stay the same when i insert the seed but i dont whats wrong with my code here

and it doesnt generate the biomes proprly

and the biomes dont stay constant with the seed

https://paste.myst.rs/9gnmfatr

this is the entire code for my script

[vagrant raptor]

Hello, how can I make interface operations asynchronously in my game in Unity, I want to do it as fast as I can, what is the fastest way you know

[leaden ice]

What do you mean by interface operations exactly?

[vagrant raptor]

I am a plugin developer in a unity game and I can do interface operations in the main threade, that is, just interface operations, changing the text content, etc. In order to do this, the game provides me with certain functions, which method can I call them in the fastest way.

[leaden ice]

I'm still not really understanding what "interface operations" means
Are you just talking about calling the Unity API functions?

There's no fast or slow way to call them

There's only one way

[simple egret]

User Interface maybe? Or C# interface?

[vagrant raptor]

gui

ui

I'm sorry my English is not good, I can't explain myself well.

[simple egret]

You can't be any faster because there's only one way of changing what you want, and those are already optimized

Like a TextMeshPro Text that will only redraw the text in the game if it changed

Pass the same string 10 times and it'll only perform a redraw once, the first time

[vagrant raptor]

Let me rephrase my question, how can I run my method on the main thread as fast as possible without occupying the main thread?

[swift falcon]

guys i want to change the position here how do i do that ?:

Instantiate(projectile, transform.position, Quaternion.identity)

should i do:

Instantiate(projectile, transform.position = 93 12 43, Quaternion.identity)

?

[vagrant raptor]

new position

[simple egret]

Run it on the main thread. You cannot get faster than this, because you cannot offload the work to another thread, as Unity doesn't like that

[swift falcon]

wdym ?

[simple egret]

They mean new Vector3(x, y, z)

Replace the XYZ with the numbers you want

[vagrant raptor]

Okay, I understand that, but I have one or two questions for you.

[swift falcon]

like:
Instantiate(projectile, transform.position,new Vector3(x, y, z), Quaternion.identity) ?

[simple egret]

No

Replace transform.position with the new Vector3 operation

[vagrant raptor]

'Task mymethod = domethod(arg1,arg2);
await Task.run(async() => mymethod()') when I run it this way the result is much faster but
await domethod(arg1,arg2);; why do I get a slower result

I don't understand asynchrony very well, can you help me a little bit?

[swift falcon]

ok i will try ty for your help !

[swift falcon]

Rigidbody rb = Instantiate(projectile, new Vector3(-0.001, 0, -0.0114), Quaternion.identity).GetComponent<Rigidbody>();

like this right

[simple egret]

Try it

[swift falcon]

because it told me in the debug that they cannot convert from 'double' to 'float'

[simple egret]

There we go

If you have errors say so

[swift falcon]

it is an error

" cannot convert from 'double' to 'float' "

[simple egret]

Yeah but you said "will this work" but you already tried it and knew there was an error

[swift falcon]

no the error just popped

[simple egret]

Instead say "I got an error, here's my code, here's the error"

[swift falcon]

after i inserted the code

[simple egret]

Alright. In Unity you need to add f at the end of decimal numbers so they're interpreted as floats. Example 3.14f

[swift falcon]

ty so much now it works

[restive ice]

I'm writing a dependency injection framework, and I am having some troubles figuring out the right builder pattern.

RegisterDependency<TDependency> returns a DependencyBuilder<TDependency>.

I can then stack build statements onto that call like so:

LocalContainer.RegisterDependency<FooBehaviour>().FromInstance(fooBehaviour).WithId("someId");

Now normally you would do a Build() call at the end to check if the required parameters have been passed in the earlier calls, but I am looking for a way to make that happen automatically.

How do I make the builder call a check function at the end of these stacked calls only, without making that specific end call? the syntax here would look much cleaner if I could leave out the last call here ``LocalContainer.RegisterDependency<FooBehaviour>().FromInstance(fooBehaviour).WithId("someId").NowActuallyRegister();`

I asked chatgpt and it came up with implementing IDisposable and then registering my dependencies like

using (var builder = LocalContainer.RegisterDependency<string>().FromInstance(someStringDependency))
{
    // Do something with the builder
} // Dispose will be called automatically at the end of the using block

but that seems silly, as i dont need to have access the builders anymore and a seperate using block for each dependency is very user unfriendly.

[ivory saddle]

Does unity have a filedrop callback or is there any way I can get the functionality for it?

[potent sleet]

did you see my reply from earlier ?

[ivory saddle]

Wait, Nevermind, I think I misunderstood something.

[potent sleet]

there is no built in method in unity for drag n drop

[simple egret]

If you assign the DependencyBuilder<T> to a variable of another type after you set it up, you could make an implicit operator to that target type, and put your checks and build code in it

But I wouldn't recommend as it's not clear on when the build actually happens

I'd stick to an explicit Build() method

[restive ice]

yeah the problem is I don't really want to treat the builders as variables at all

[restive ice]

the problem I have with that is that if you forget the call to Build() it wouldn't throw an error right away, but the dependencies wouldnt be reigstered either.

now you can resolve that by for example returning something from the Build call and then checking if the value is returned

but that would again make the syntax of registering my dependencies more complex

[rocky jackal]

how could i smooth out the rotation ?

[potent sleet]

rotatetowards? slerp?

[tepid charm]

worst line of code I've written so far:

if (UnitManager.instance.soldiers.Find(x => x.index == buckets[(i) * sideTiles + j][i2].index).unit.team == soldier.unit.team)

[simple egret]

Hm, how about how Microsoft does it for their dependency injection framework? Like they call a method that takes in a lambda with a service provider as a parameter. Register your stuff to that provider in the lambda's body.
Then once the lambda finishes, internally run it

[rocky jackal]

but this one takes an axis as an input and an ammount to rotate it arround said axis how would i do that with slerp

[restive ice]

I want LocalContainer.RegisterDependency<FooBehaviour>() to throw an error

LocalContainer.RegisterDependency<FooBehaviour>().FromInstance(fooBehaviour)
to be the minimum

and then have optional builder stacking like be allowed

LocalContainer.RegisterDependency<FooBehaviour>().FromInstance(fooBehaviour).WithId("someId")

[restive ice]

mind linking that?

[potent sleet]

https://docs.unity3d.com/ScriptReference/Quaternion.Slerp.html

[tepid charm]

this one is also pretty ugly but not as bad

sorter.distance = (buckets[(i - x) * sideTiles + j + y][i2].transform.position - soldier.transform.position).sqrMagnitude;

[restive ice]

normally it makes sense that you would call a final Build() or whatever if you need to actually do something with what the builder returns, but for this framework syntax it makes it weirder

[potent sleet]

oh do you mean you want to only do it by specified amount?

[tepid charm]

that gives me PTSD from rotation matrices

[simple egret]

I don't have a link but it's common to see this kind of stuff

Builder.Services.AddDatabase(configure => {
  configure.UseSqlServer();
  configure.UseConnectionString("...");
});

Then once the lambda is executed, it internally checks that all values were provided, and throws if needed

[rocky jackal]

yes and only arround the local forward axis

[potent sleet]

eg:```cs
Quaternion startRotation = transform.rotation;
Quaternion endRotation = transform.rotation * Quaternion.AngleAxis(-angleDifference, transform.forward);

float t = 0f;
float rotationTime = 0.5f;
while (t < rotationTime)
{
t += Time.deltaTime;
float normalizedTime = t / rotationTime;
transform.rotation = Quaternion.Slerp(startRotation, endRotation, normalizedTime);
}```

[rocky jackal]

this does smooth the rotation but now it does not only rotate arround the local transform forward it sometimes rotates arround all directions

[rocky jackal]

is there a way to use the local forward axis ?

[potent sleet]

transform.forward should be local

[rocky jackal]

wait, ill try to record what happens

[tepid charm]

if it wasn't it would just be a Z axis unit vector

[rocky jackal]

it behaves really weird but i think i can replace all the code with two joints

[maiden junco]

Solved! I deleted Library and ProjectSettings

now it works

[prisma roost]

i was wondering if in this channel i can ask about mirror and fizzy steamworks coding or if thats another channel

[hexed pecan]

#archived-networking

[slow grove]

Hey guys, I’m making a 6dof flight system, but want to have players able to walk around the ship, and for ai to be able to pathfind in the ship. I’ve kind-of settled on two solutions:

1. The ship the player is on stays completely stationary and at the origin, while the rest of the universe rotates/moves around it, but this has the issue of not really being able to make collisions work

2. Parent player characters to the ship they’re on and actually move and rotate the ship, but this seems to have the issue of probably not being able to get ai pathfinding to work (though I haven’t really tested it yet, this is just intuition)

Any advice on which one I should do?

[haughty kiln]

In the past I took solution 1 and found it really easy to get started. Moving rigidbodies (the player) around a moving ship comes with a lot of problems in itself.

[slow grove]

With solution 1 (which is the one I’ve got) it’s pretty painful to get the skybox to rotate correctly, and I’m honestly not sure how I would make the players ship collide with stuff

Also does it change anything if I’m not using a rigidbody character?

[haughty kiln]

You could feed rotation data into a skybox shader to spin it properly

[slow grove]

I’ll have to play around with that but seems much more sensible than what I’m doing

[haughty kiln]

With solution 1 if your obstacles have rigidbodies it's possible to have collisions but your ship would never move out of the world origin

[violet cipher]

` public Text scoreText;
int score = 0;

// Start is called before the first frame update
void Start()
{
    scoreText.text = score.ToString() + " Collisions";
}`

[haughty kiln]

I mostly just read that there was a collision and either destroyed/damaged and stopped my ship but I bet you could work out some way to do better collisions

[violet cipher]

why is this giving off a null freference exception

everything is defined

[slow grove]

Hm, I’ve tried adding rigidbodies to the obstacles but my ship just phases through them, would it be possible to make the ship bounce off of them?

[violet cipher]

but it says there is a nullreference exception at the line in VOID start

[haughty kiln]

See if OnCollisionEnter is called on your ship

[tepid river]

im only shifting things, i left the object rotate normally.
keep track of how your universe is rotated/shifted, that makes it easier to adjust objects properly.
if you know what your "universe rotation" is, you can just copy that to the skybox

[slow grove]

Yeah, I think i need a custom skybox shader to be able to rotate in more than one axis though

[haughty kiln]

You could set it up in Shadergraph with a Vector3 as a property, it shouldn't be too difficult once you get all of the axis to match

You do lose some features because of that though because it will be your own skybox shader. So it would be a solid color unless you mapped a texture to it

https://medium.com/@jannik_boysen/procedural-skybox-shader-137f6b0cb77c

[slow grove]

👍 many thanks

[haughty kiln]

There will still be plenty of problems in the future but it's a step haha

[tepid river]

also, i keep track of the scenes absolute universe postion with a double vec3, instaed of float3, because the floats with their precision issues where the cause for the whole ordeal.

[dusk geode]

//TODO: nicen up
        float targetFront = 0;
        float targetBack = 0;
        DebugExtension.DebugWireSphere(raycastAnchorPlane.position, 1f);
        if (Physics.SphereCast(raycastAnchorPlane.position, 1f, -raycastAnchorPlane.transform.up, out _, 1f, ~steeringRaycastIgnoreLayer))
        {
            Debug.Log("Grounded");
            TorqueUpright(relativeSurfaceNormal);

            //Vector3 axisInRaycastPlane = raycastPlane.ClosestPointOnPlane(axisBack.position);
            //Vector3 axisInAgentBodyPlane = agentBodyPlane.ClosestPointOnPlane(axisBack.position);

            agentBody.AddForce(
                agentBody.transform.forward * agentController.moveAxis.z * 5,
                ForceMode.Acceleration
            );
            targetFront = steeringParameters.axisMaximumDisplacement * agentController.moveAxis.x;
            targetBack = -steeringParameters.axisMaximumDisplacement * agentController.moveAxis.x;
        }
        axisFront.transform.localRotation = Quaternion.Euler(0, targetFront, 0);
        axisBack.transform.localRotation = Quaternion.Euler(0, targetBack, 0);```
anyone have an idea why my spherecast here does not seem to be true whenever I touch the ground ?

i have to awkwardly shuffle around over it for it to register

the white sphere is the spherecast

no the plane is not on the ignore layer

ah overlap sphere seems to be the choice here

[cinder nymph]

someone know why Bolt setup dont finish?
if i click generate it doesnt work and in visual scripting appear this:

[left gale]

Does a unity crash saying invalid scene handle, in a variety of different callstacks, usually actually trying to allocate memory either with physics or in renderables (ie, mesh geometry allocation), mean anything to you guys? My thought is that we are doing a lot of touching of entities off the main thread which is known trouble, but would it exhibit this sort of error? And secondly is there any sort of global hook for being notified or asserting when an entity is activated deactivated or it's scene changes or this sort of thing?

[cinder nymph]

!bug

[tawny elk]

Reporting bugs

🪲 To make bug reporting as quickly as possible, we made a bug reporting application for you. When running Unity choose Help->Report a Bug in the menu, or you can access it directly through the executable in the directory where Unity is installed. It will also launch automatically if you experience a crash.

📝 If your bug report is to do with Documentation, either an error, typo, or omission, you can report it by scrolling to the bottom of the page where you found the issue and click ‘Report a problem on this page’!

💡If your report is to do with a new feature idea, you can check the Unity Product Roadmaps page to see if your idea has already been planned.

For more complete instructions on how to report bugs, access: https://unity3d.com/unity/qa/bug-reporting

[left gale]

?

It's the game that is crashing, not the editor. If that is suppose to be for my benefit

[dim spindle]

Report as bug

[left gale]

Why would I do that every time my game crashes?

[cinder nymph]

someone know why Bolt setup dont finish

[slow grove]

Just out of curiosity, the way we're doing it right now is having an actual physical box around the player with the skybox texture on it, and rotating that. Is there anything inherently wrong about that method? Should we write our own shader instead anyway?

[noble mortar]

Does anyone know how I can make it so my text replaces the old text and the old text keeps it font?
I'm trying to make it so it seems like the mc is understand ancient text.
https://gdl.space/tumodocuro.cpp

[slow grove]

nvm, skybox reflections are gonna be messed up with our current method, i'll try to figure out how to make a convincing skybox shader :p

[simple egret]

With TMP Rich Text tags

tmp.text = "This is in the default font. <font=\"FontName\">This is written in another font.";

You need to displace the <font="Font Name"> tag through the string as the text changes

[median folio]

Hello, I had an idea that I suspect will be above my skillset but wanted to give it a try anyway. So I'm using a third party asset called DoTween in my project to control the way certain objects move around.

I have recently learning about adding a layer of abstraction and wanted to give it a go. So that if DoTween ever goes under or I want to switch to a different system I only have one place to do this inside of.

Some of the use cases are easy like DoMove(amount to move) I can make my own method called MyMove which will just call DoMove.

Things get trickier with callbacks though, this is when doTween allows me to call a method on my script after a move has happened like this DoMove(amount to move).OnCompleted(method to call)

If I'm calling my own static MyMoveManager script how would I pass it my method on my current class ? Something like this maybe?

My Class:
MyMoveWithCallBack(Action callback, moveAmount)
{
DoTween.Move(moveAmount).OnCompleted( callback)
{

[simple egret]

Extension methods would be a good way of doing that. DOTween itself uses extensions for all its methods.

public static void MyMove(this Transform t, Vector3 move, Action callback)
{
    t.DOMove(move).OnComplete(callback);
}

Then you can just call it like that: transform.MyMove(Vector3.right * 10, () => Debug.Log("Complete!"))

[azure heath]

Can anybody see why this array keeps wiping itself? I'm baffled.

                        Debug.Log("Drop down.");
                        oneWayPlatArrayCached = oneWayPlatArray;
                        if (oneWayPlatDropActive) StopCoroutine(oneWayPlatDropCoroutine);
                        StartCoroutine(oneWayPlatDropCoroutine);

private IEnumerator OneWayPlatDropCoroutine()
        {
            oneWayPlatDropActive = true;
            IgnoreArrayOfCollisions(true, oneWayPlatArrayCached);

            yield return oneWayPlatDropInterval;

            IgnoreArrayOfCollisions(false, oneWayPlatArrayCached);
            oneWayPlatDropActive = false;
        }

        void IgnoreArrayOfCollisions(bool ignore, Collider2D[] collider2Ds)
        {
            for(int i = 0; i < collider2Ds.Length; i++)
            {
                if(collider2Ds[i] != null) 
                {
                    Debug.Log("Collider is named " + collider2Ds[i].name);
                    Physics2D.IgnoreCollision(box2D, collider2Ds[i], ignore); 
                }
            }
        }

Only the first IgnoreArrayOfCollisions() outputs a Debug.Log, and the collisions are never reenabled.

'Drop Down' only appears once in the console, so it's only being called once. I'm really confused.

[median folio]

Wow thanks SPR2 that's really clever!

I actually used my first extension method recently (to shuffle lists) so it sounds like a perfect solution. I wasn't sure the Action would be the right type for the callback so I'm glad I got that right.

I'll play around with this and let you know how it goes, cheers!

[buoyant mural]

I have a coroutine which is running for some reason even after I stop it (and the bool that makes it get called is also set to true(which means it wont get called))
Here's my code (The coroutine IEnumerator Rotate): https://pastebin.com/itSEQqe8

[dim spindle]

The game shouldnt crash, 99% of the time. Unless you modified something low level, it is likely a bug

It should just throw an error in console and or Player.log

[icy inlet]

I've been trying to tackle on slopes for the past years creating this game. I am out of options and this is as far as I could go.

Here are the two functions that are used for walking:

    public void Walk(float maxSpeed)
    {
        if(CanRotate)
        {
            CameraToForwardRotation();
        }

        if(!CanMove) return;

        Vector3 wishDir = SlopeItUp(dir);
        float acceleration = grAccel;

        wishDir = wishDir.normalized;
        Vector3 speed = new Vector3(rb.velocity.x, 0f, rb.velocity.z);
        if (speed.magnitude > maxSpeed) acceleration *= speed.magnitude / maxSpeed;
        Vector3 direction = wishDir * maxSpeed - speed;

        if (direction.magnitude < 0.5f)
        {
            acceleration *= direction.magnitude / 0.5f;
        }

        direction = direction.normalized * acceleration;
        float magn = direction.magnitude;
        direction = direction.normalized;
        direction *= magn;

        rb.AddForce(direction, ForceMode.Acceleration);
    }

    public Vector3 SlopeItUp(Vector3 playerDir)
    {
        Vector3 finalDir = playerDir;

        if(OnSlope())
        {
            finalDir = Vector3.ProjectOnPlane(playerDir, slopeHit.normal);
            Debug.DrawRay(transform.position, finalDir, Color.cyan);
            // rb.useGravity = false;
        }
        // else
        // {
        //     rb.useGravity = true;
        // }

        return finalDir;
    }```

All functions are being called right, the ground check for slopes is right, everything is right, I think what's wrong is the actual calculation. I have no idea where I'm wrong here and why is it so slow to get back to running after stopping on a slope as shown in the vid.

i am once again going insane over this shit

i'll have to visit a therapist by the time im done with this

[timid crater]

My apologies for posting this after your question, I'd love to help you if I had an answer but I need to ask this question.. V

Good evening! I need help with this error, I have been getting for days whenever trying to instantiate a player using Nakama multiplayer feature:

"spawnPoint.transform UnityEngine.UnityException: get_transform can only be called from the main thread.
Constructors and field initializers will be executed from the loading thread when loading a scene.
Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function."

It's a spawn function so it can't be in start or awake, here's the code:

public void SpawnPlayers(string matchId, IUserPresence user, int spawnIndex = -1)
    {
        Debug.Log("Spawning players..");

        //If the player is already spawned, return.
        //if (players.ContainsKey(user.SessionId)) return;

        //Define a spawn point for the player.

        GameObject spawnPoint = spawnIndex == -1 ?
            spawnPoints[UnityEngine.Random.Range(0, spawnPoints.Length - 1)] :
            spawnPoints[spawnIndex];

        bool isLocal = user.SessionId == localUser.SessionId;


        var playerPrefab = isLocal ? networkLocalPlayerPrefab : networkRemotePlayerPrefab;


        player = Instantiate(playerPrefab, spawnPoint.transform.position, Quaternion.identity);


        if (!isLocal)
        {
            player.GetComponent<PlayerNetworkRemoteSync>().NetworkData = new RemotePlayerNetworkData
            {
                MatchId = matchId,
                User = user
            };
        }


        players.Add(user.SessionId, player);

        Debug.Log("Adding the player to the dictionary.");

        if (isLocal)
        {
            localPlayer = player;
        }
    }

[mossy snow]

What's your question? Make sure SpawnPlayers is only called on the main thread like the error tells you. You are probably calling it in a constructor, but without any more context it's impossible to say for sure

[mossy snow]

since you're normalizing your direction, the horizontal component of the motion will be less and less as the slope increases. Try a very high slope, you'll probably see the character moves very slowly

[icy inlet]

that's alr bro ain't nobody gonna answer me anyway

[icy inlet]

oh somebody did actually

let me look into that

[icy inlet]

you're right..

[timid crater]

My bad I didn't make it clear, so why whenever I add a breakpoint to the player = Instantiate(playerPrefab, spawnPoint.transform.position, Quaternion.identity); line and hover over "spawnPoint.transform" this error pops up: "spawnPoint.transform UnityEngine.UnityException: get_transform can only be called from the main thread.
Constructors and field initializers will be executed from the loading thread when loading a scene.
Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function." Resulting in no player prefab being instantiated. How can this be fixed?

[icy inlet]

now the question is should i be even normalizing the direction

[mossy snow]

are you accessing this from the main thread? It sounds like no

[icy inlet]

welp with no normalization the character shoots up with unreal speed

[timid crater]

How would I know if I'm accessing this from the "main thread"? don't mind me I'm new to this

[mossy snow]

makes sense, you're applying the full force of the character's acceleration in +Y in that case

you still need to account for the y component, but the end calculation just shouldn't affect horizontal velocity

[icy inlet]

but it doesnt seem to shoot up only on the y, it seems like it shoots up on all of them

i might be wrong hold on

[mossy snow]

what does the stack trace look like? You should be able to use your debugger to look at active threads

[timid crater]

One moment

[true palm]

So my grenade is calling on the take damage rpc but you dont take damage can someone help?
player file: https://hatebin.com/ivrdizjgto
grenade file: https://hatebin.com/qfdaqueuga

[timid crater]

Do you mean those?

[mossy snow]

looks like whatever you're using for matchmaking is invoking this callback on separate thread

[timid crater]

How should I invoke it in the main thread?

Or what is the main thread actually? I tried looking it up but couldn't understand

Is it something like this?

[mossy snow]

Maybe time to read up on threads. Yes something like that would work, or a script that checks a concurrent queue or something similar that you post work to. There are libraries to help also. What are you using for matchmaking? I would be surprised if it didn't address this, assuming it wasn't you that invoked the callback with Task.Run or something

[icy inlet]

This shit is weird as fuck tbh, I made it so it added the slope calculation to the actual direction and now it stops. I did enable the normalization again so maybe thats it???

[timid crater]

I'll do, I'm using Nakama, I've read the documentation and watched their only few videos on the topic and I think nothing was mentioned regarding that topic up until spawning players because this was where I stopped since the error is occurring there

Would you recommend a better alternative for matchmaking besides photon? @mossy snow

[mossy snow]

debug your force vector. Did you forget to add the horizontal motion to it? You might also need to increase the magnitude of the y velocity you apply based on the magnitude of the xz velocity, otherwise next frame you might not have enough y direction motion if horizontal motion is high

[mossy snow]

no reason it wouldn't work, you just have to deal with some Unity idiosyncrasies

What does OnReceivedMatchmakerMatched look like? the docs for this library look like everything should be awaited in the main thread context already

[golden lichen]

I have this super simple game where your character just follows your mouse, but I think it would be fun to be able to control the character through your webcam by tracking your hand position—is there a recommended plugin I should use for this kind of task?

[mossy snow]

hmm that looks fine, other than the lack of try/catch which maybe someday haunt you when you have invisible exceptions

[cold parrot]

is this an original idea?

[golden lichen]

I'm unsure what you mean by that
I created this game, so I think it's an original idea?

[cold parrot]

i mean did you copy an existing game you know of, or is this all you?

if its all you, you should 100% publish this (when its done)

[timid crater]

I have that in mind, I'm just writing basic code for now

@mossy snow Have you tried Unity's Netcode, if yes what do you think of it?

[golden lichen]

currently I have a secret link on itch.io, but it's not published yet
I'd still like to add extra functionality, like the webcam hand tracking controls that I mentioned earlier

[cold parrot]

there are a variety of gesture recognizing libraries/plugins, you need to try them all to find out which one works for you, all of them are somewhat janky

[golden lichen]

that's why I'm asking for recommendations

[cold parrot]

i mean if you polish it to be a proper game (doesn't need much, think vampire survivors) this could be a meme game

it looks fun and is very easy to understand

[dim spindle]

are you calling vampire survivors a meme

[mossy snow]

I haven't, no

[icy inlet]

not normalizing the vector at the end produces this, no matter if on slope or not lmao

[cold parrot]

the recommendation is to try all

[dim spindle]

no clue if are you looking for visual feedback btw but just looking at this the skybox seems VERY bright for the rest of the game

[mossy snow]

something is insanely broken there Meta

[golden lichen]

noted

[icy inlet]

yeah this is the most confusing shit bru i tried to tackle this way to many times, the indomitable human spirit will prevail tho

[dim spindle]

how are you setting this vector

because uh thats a slightly large number

just slightly tho not like 10000000000x too big

[icy inlet]

its a debug.log of an addforce when i disable normalizing at the end of the calculation

lmaoo

[golden lichen]

there's no possible way I'm going to be able to "try all" (most of what I've seen is related to vr headsets, which is not what I want), is there at least a handful of plugins that are easy/popular?
I don't think any sane person would want to purchase every webcam tracking plugin in the asset store just to "try them"

[dim spindle]

make your own (real)

[icy inlet]

this is the actual calculation here, i removed the last direction = direction.normalized

[uncut plank]

not sure if youll get recommendations on such a specific thing here

better ask it on some kind of forum

[golden lichen]

oh, I see

[icy inlet]

@mossy snow i changed some things up, now the z and x are right (they are the same on normal ground), but the project on plane decides to make the Y 11 and not 30 as it should

[eager yacht]

I've seen this, but I am not sure how useful the resource is. https://www.youtube.com/watch?v=RQ-2JWzNc6k Most things I found are expensive, external hardware (Leapmotion, VR controller, AR glove/ring, etc), or are very expensive to run.

@golden lichen didn't mention I guess

[icy inlet]

@mossy snow wait shit i just set the Y to 30 and it works??

[golden lichen]

I can try that, thanks

[icy inlet]

well i shouldnt because 30 is only for when going up a slope and -30 for when going down, but this is actual progress

i guess ill math.sign the projectonplane?? hol on

@mossy snow i might have just done it??

[noble mortar]

Do you know if it is possible to replace each character with the newer characters? Like if I had "Dog" and it replaced it with "Cat" but one character at a time.

[oak viper]

for some reason I cannot use ParentConstraints in script. Do guys have an idea why that is?

Its like visual studio doesnt know what it is

[narrow summit]

Namespace probably

using UnityEngine.Animations;

[oak viper]

thanks a lot. Thats it. wasnt aware of that.

[open dome]

can somone help me with this problem when I tried to load my game into a browser?

it is a multiplayer game

[mossy snow]

look at the browser js console like it says to see what the error was

[narrow summit]

Best guess would be that you're using something that isn't available on WebGL

[open dome]

it is an error 227

[mossy snow]

well that wasn't helpful. Does it run normally in editor or as a standalone build? Do you have any dependency that doesn't work in webgl?

[open dome]

It usually runs as a standalone build and it runs normally within both the editor in the build. I am not aware of any dependency that doesnt work in webGL.

I have created a project with a different version of the game and it has run fine

does the universal render pipeline work within WebGL?

[mossy snow]

the docs say yes

[open dome]

hm\

should I provide links to my scripts such as the playerManager, Launcher and playercontroller?

[narrow summit]

you should look more closely at the logic which executes after you press the start game button

[open dome]

how do I view the logic?

[leaden ice]

your code

your code is the logic

[open dome]

got it

[open dome]

I fixed the problem. I found out that one of the scripts had UI elements that were public variables, so I simply changed them to serialized fields

thanks for everyone who attempted to help

[narrow summit]

what

[hard sparrow]

Is there a way to do foreach key in _myDictionary or no? Foreach keyvaluepair doesn't let me modify the value.

And I don't see how to do a for loop

[leaden ice]

foreach (var key in myDict.Keys)```

[thorny onyx]

whats the defaultvalue of a float playerpref?

and i see now i spelled score wrong lol

[limpid crow]

what is causing it?

[somber nacelle]

1. GetFloat has an overload that allows you to specify your own default value that is returned by it so you don't need to use an if statement for that if you were just going to assign some other value
2. the default value of a float is 0

this is a code channel

[thorny onyx]

thanks

[limpid crow]

ok I see

[granite nimbus]

is it possible to somehow make an ordered dictionary / hashmap? I want both mapping and iterating

[solemn raven]

hey,
is there is any way to curve the corner of an image within unity ?

is it possible to curve only 1-2 corners out of the 4 corners?

[vagrant blade]

No

The image is sprite based, you can't modify it. There are assets on the store they let you generate UI images to do exactly what you're asking.

[solemn raven]

I'll take a look , thank you

[vagrant blade]

https://assetstore.unity.com/?q=Procedural UI&orderBy=1

[merry ridge]

Does anybody have any advice for nested coroutines for resetting cooldowns? I would like to make my character have a cooldown reset if he collects a powerup while currently experiencing the same powerup. Say they pick up a speed up, and it lasts for 5 seconds. If they pick up another speed up during that 5 seconds, I want it to reset to 5 seconds again. Anybody know the best way to do this?

[latent latch]

You can save the reference to the coroutine and check if it's still running

if it is, stop the coroutine and start anew

[slender nacelle]

hi guys, whenever i exit play mode i get this error:

The property database "Library/Search/propertyDatabase.db" is already opened.
UnityEditor.EditorApplication:Internal_InvokeTickEvents ()
ive googled but not sure how to fix it, think it might be related to a crash im having

[cobalt wave]

just set the cooldown to 0 at that point

check if the coroutine is still running and if it is set the cooldown to 0
no need to stop the coroutine and rerun it

[leaden ice]

unit is null

[rain minnow]

The same as the default value for a float . . .

[hard sparrow]

Wouldn't thatt make it false..?

[leaden ice]

not according to the docs

https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.dictionary-2.containskey?view=net-8.0

[lunar forum]

What does "=>" do? I've tried searching for it, but I can only find examples of it being used - not explanations of it.

[leaden ice]

it's used for defining lambdas and expression-bodied members

it separates the parameter list from the body of the function

[stable osprey]

good practice is to try using => as much as possible

watch VS suggestions closely as it usually instructs on how to do so

[lunar forum]

Does it have a name?

[leaden ice]

Lambda operator @lunar forum
https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/lambda-operator

[stable osprey]

we call it => 🔆

[lunar forum]

lol

Thanks

[frigid shard]

Is there a way to place battle music when an enemy is nearby or is in range?

[west sparrow]

Most definitely.

[frigid shard]

Or an enemy with no movement or action as of the moment

Like a dummy

[west sparrow]

Triggers, distances, raycasts, manual custom intensity etc.

[frigid shard]

Yeah but how do you turn the main music off once you get close to an enemy.

[west sparrow]

In our first horror game, all the audio is proceedural. We track how afraid we think the player is, and select visual and audio effects based on their anxiety, fear, and anger levels. So a heartbeat starts up, gets louder. Interacting increases possibility of audio playing audio clips etc. And fear spikes (seeing an alien) is what triggers big scare samples

You can check the distance to the nearest bad things, how far they are, their individual power, when you last saw one. So just tie the audio in that way.

A simpler approach is just to overlap trigger spheres when near a bad guy

Or just trigger new audio if you become visible or detected (metal gear style)

[frigid shard]

And when you defeat it the main music goes back?

[latent latch]

It's up to however you want to code it

Usually games do a fade on music transitions instead of* instantly/abruptly playing the next track

[west sparrow]

Yeah. In our case, anxiety slow reduces if you haven't seen anything scary in a while. Some things, like a flickering broken tv, still adds hidden fear. So it's environmental. But you can control all of that depending on the project

Just gotta code it 🙂

[frigid shard]

So just basically just look up tutorials how to do music properly?

And give it a test?

[frigid shard]

Also how do you make Lego like damage. To where once they die pieces scatter and disappear for a few seconds and Lego builds?

[worldly hull]

normally its extremely hard to do procedual generating of those effects

ppl normally will break the model to pieces , and align them to make them look like a whole

[burnt shore]

hey does anyone know how to fix this

i dont know how to fix it

[worldly hull]

when u need it to scatter, just scatter them

[frigid shard]

I mean like detaching them from the body.

[worldly hull]

for example, u have a kyubey doll, if i want myself to scatter when explode

i will make a complete, perfect kyubey model and a broken kyubey model

when kyubey "died", instantiate object with the broken model prefab , and apply forces to scatter it

[worldly hull]

modelpart.transform.parent = null;```?

[frigid shard]

Like do I just make the part of that body invisible. But wouldn't that make a more lag with the rig being on the floor everywhere?

Oh wait nvm.

Yeah I'm a newbie to this.

[chilly beacon]

i am experiencing extreme lag spikes when generate perlin noise values my noise map is around 400 by 400 ish and i think unity is rendering the entire map at once, what steps should i use to optimise this make a chunk wise rendering or render area up to players visibility or the area of the camera is only rendered at a time? kind of new any ideas

[leaden ice]

first step for any performance issue is to use the profiler and pinpoint exactly what the issue is

Unity already performs Frustum culling by default so the "only render the area of the camera" thing happens automatically

[cosmic rain]

We also have no clue how you "generate perlin noise". It could mean so many things, especially if there's some other meaning behind it, which is very much possible judging by how you're asking about rendering.

[chilly beacon]

I generate 2 things an island ilusing cellular automata then I apply a perlin noise on of the island shape and generate biomes using the noise value of the perlin noise, that's pretty much it

When I generate a randomly using left click it gives me a huge lag spike for 3secs

[cosmic rain]

That still doesn't tell us much. You'll need to share the relevant code. Or even better, do the profiling first and share the profiling results.

[cobalt wave]

I think they are asking you "how" are you generating perlin noise

[chilly beacon]

The thing is currently my map size is not exactly what I want I want the map to be alot bigger and I don't know how I could optimize the lag issue

[cosmic rain]

Start from understanding what causes the issue first. Then you can think of solutions.

[chilly beacon]

Ok wilait I'm sharing, and perlin noise is generated using the perlin noise function built in

[dim spindle]

is this after importing a model

[chilly beacon]

hey so i have uploaded my code here https://paste.myst.rs/v2d262sh

the thing is that i currently generate a map of the size of 100 x 100 tiles

and this small ends up give a bit of lag

and my plans are to have a world the sze 800 x 800 tiles

and when i do try to generate a world of that size it takes like a solid 30 seconds to just generate

and ends up being too laggy to even move around the player character

this is my inspector window

[cunning shard]

Does Unity provide any way to prevent a Rigidbody from colliding with a specific layer by instance?

[quartz folio]

There are layer overrides on rigidbodies, yes

[cunning shard]

Layer overrides?

Am I missing something lol

[leaden ice]

Only on the newest Unity verisions - 2022+ I believe

[cosmic rain]

Generating the map would of course take a lot of time,especially if you do it on the CPU in single thread and without any optimizations. But there shouldn't be any lag after generating it normally.
Use the profiler to discover why it lags after generating the map.

[cunning shard]

yeah that's the actual issue

I'm using Unity 2020.3.36f1

[quartz folio]

Then no, you have to use the layer the gameobject is on

[chilly beacon]

sorry kinda new to unity how do i use profiler

[cosmic rain]

Google. It's not something we can explain in a few messages.

[cunning shard]

How would I use it by instance?

[quartz folio]

Just change the layer? What are you asking?

[cobalt wave]

@chilly beacon the initial lag is caused by the for loops which is "okay" since you do sort of have to have a loading time in a game, it's expected.
I don't know why it lags during runtime though, it should only lag when you press the mouse button, or in other words, when you generate the world.

[cunning shard]

Yeah, I'm gonna change the layer, how does it prevent them from colliding with other layers?

[quartz folio]

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

[cunning shard]

Lemme do the funny, never looked at the collision matrix

[chilly beacon]

sorry y bad it doesnt lag during lag time but couldnt the generating time be lowered

[cobalt wave]

not really

I guess you could try using some optimizing tehniques, but I don't know any for loops

[chilly beacon]

ok

[cosmic rain]

If you want to optimize the generation, you'd need to either make it multithreaded using unity jobs system or GPU based using compute shader.

You could also profile your current implementation and try to optimize the bottlenecks, but there's a limit to how fast you can get it with one CPU thread.

[cunning shard]

Well, no, that's not the actual solution.
Based on the script instance, the collision should be set up

Let's say Layer1 is gonna instantiate a Layer3, Layer1 shouldn't be hit by Layer3, whereas Layer2 should be hit instead.
Same goes for Layer2 instantiating a Layer3 and doing the funny with Layer1.

[leaden ice]

Sounds like you just want a player's bullets to not hit themselves or something?

[cunning shard]

Something like that

[leaden ice]

Just use https://docs.unity3d.com/ScriptReference/Physics.IgnoreCollision.html between the projectiles and the object that created them

[cunning shard]

Yeah but that requires two colliders

[leaden ice]

?

yes the two colliders you want to not hit each other

[cunning shard]

Well uh

I'm not currently using a collider aside from Rigidbody

[chilly beacon]

alright so the things i need to look ater is either generate though multithread, or gpu based compute or use profiler to improve current gene. Got it thanks imma look into them 👍

[cunning shard]

Shouldn't Rigidbody have a collider?

[leaden ice]

If you don't have colliders then no collisions would happen period

so you don't have a problem

[cunning shard]

Bruh dum momento

Nvm, I was brain-lagging

[cosmic rain]

I'd suggest to use the profiler regardless, to understand why exactly your current solution is slow.

[cobalt wave]

its because of the loops

not alot will be gained by profiling

[cosmic rain]

Loops alone don't take time. It's what they're doing in the loops that is the issue.

By profiling they can see how many iterations of what calls take what time.

[cobalt wave]

they can't really make it much more efficient, the loops are the problem because if you look at the code (no need for profiler) you can see that they have 6 different double nested loops, all that have 10000 calls

[cosmic rain]

It could be even something unexpected, like massive GC allocations

[cobalt wave]

which adds up to 60000 calls a frame

so yea, you can optimize the inside as much as you want, but the inefficient writing is the problem

[cosmic rain]

Again, it depends on what calls they are. A CPU would crack 60000 additions in less than a millisecond probably for example.

[cobalt wave]

if you look at the code you can see that they can't really optimize the inside of the loops too much because they are already doing what they need to do

you could gain maybe a few fractions of a millisecond, but that improvement still gets overshadowed by the fact that there are 6 different loops that all do different things (meaning you would need to optimize each loop). even if they shaved away a few fractions of a ms, the overall time taken will still be (6 x 100 x 100)

my bad

but arguing about this doesn't matter, since just tidying up the code will speed it up

[cosmic rain]

I'm not saying that in this current situation, they can optimize a lot the inside of the loops.
But profiling would make it easier for them to see what the issue is. It is fine if you can figure it out just from reading the code, but it's not always possible. They should learn how to use the profiler even if in this particular case, it's already clear what the issue is.

Or are you gonna review personally every single script they share and tell them what the issue is? Teach them how to fish, don't give them the fish.

[cobalt wave]

I'm not saying that, I'm saying that the profiling in this case is useless because the reason is beyond obvious
digging with the profiler while not understanding the fundemental problem of using too many loops for using necessary complex tasks will only send you in a rabbit hole of insanity because you'll be shaving off insignificant amounts while ignoring the very simple problem

@chilly beacon https://paste.myst.rs/htvllatc
try this

profiling is great if you eliminated everything else

[cosmic rain]

The profiler would clearly reveal that the issue is with the number of calls from which you can understand that the number of loops is the issue.

[cobalt wave]

also I missed a loop
it was actually 300000 calls
with the code I sent it should be only 50000

[cobalt wave]

true

[swift falcon]

is there way to add mod support to your game

[potent sleet]

did you google it

[chilly beacon]

The thing is I don't know when to for loop to avoid such discrepancies

[thin aurora]

Apart from "Google it", how exactly do you expect us to answer this? There is no specific way to add mod support.

[rustic ember]

I have two MonoBehaviour scripts, let's call them "Health" and "AICharacterController". I want the AICharacterController to listen for updates to a variable in Health. Is this possible, and if so, how?

[somber nacelle]

events. or just get a reference and poll the value in Update
how to get a reference: https://www.youtube.com/watch?v=Ba7ybBDhrY4

[rustic ember]

Events is what I am looking for. How do they work?

I am trying to learn new things after I realized that I am kind of stuck in my ways

[potent sleet]

https://youtu.be/k4JlFxPcqlg

[next sparrow]

HI everybody, I'm trying to split my dynamic textures load so that my game freezes less but I'm a bit confused about how to proceed. From what I understand, there seem to be two ways to handle this, load asynchronously or using multithreads. Is that correct? Let's say I need to load 10 textures of 4Mo on average, if I use File.Load, then the game would load them one by one and hang until all of them are loaded right? If I load them asynchronously, will it avoid this freeze?

[rustic ember]

Thank you 🙏

[potent sleet]

assetbundle / addressables, load async ?

[lunar lynx]

im trying to use layermasks in code, where all layers are affected except Ignore Raycast layer.
do I input in c# the binary representation of 111011, 110111, or their decimal equivalents?

*i know ignore raycast layer is automatically ignored, but assuming i want to do it thru code

[plucky inlet]

you need bitcasting afaik, or you just use a pbulic layerMask property

bitshift, not cast 😄

https://answers.unity.com/questions/8715/how-do-i-use-layermasks.html

[lunar lynx]

is bitshifting the only way? seems like a hassle to mix a collection of ands and ors 😭

[somber nacelle]

just use a LayerMask variable

[lunar lynx]

I have tried using public layerMasks and they work fine, but it makes the organization messy

[plucky inlet]

Did you read the link? You can just tell the layer int and bitshift it to a layermask to use it

[lunar lynx]

yes, I've read about bitshifting, but the issue is requiring multiple 1's not in sequence

so youd need a colletion of and and ors

[somber nacelle]

or just use a LayerMask variable and the ever so convenient LayerMask.GetMask method

[next sparrow]

Ah my bad, forgot to mention. My texture are in the StreamingAssets folder, not in a bundle or adressable

[plucky inlet]

mulitple 1s? You mean a list of layermasks?

[lunar lynx]

yeah

a list of layermasks

[lunar lynx]

looks promising!!

[latent latch]

Yeah, don't use literals for the masks because once you change them on the inspector then you've got to change them all in your code.

[lunar lynx]

oh yeah ok good idea

[cobalt wave]

the message I tagged you in has a pastebin link, the code there is fixed, read the code and you'll see

[knotty sun]

probably best to use UnityWebRequest to load your textures async

[swift falcon]

yes and im getting information from 2021

[somber nacelle]

did something happen in the last two years that made information from 2021 no longer valid?

[next sparrow]

Yes, that's why I changed too. But when my character textures are loading, I still get a freeze.

I'm using a coroutine to load the texture using UnityWebRequest

`
UnityWebRequest uwr = UnityWebRequestTexture.GetTexture("file://" + path);

    yield return uwr.SendWebRequest();

    if (uwr.result != UnityWebRequest.Result.Success)
    {

//Error
}
else
{
// Get downloaded asset bundle
Texture2D tex = DownloadHandlerTexture.GetContent(uwr);
}`

This is my coroutine, from what I found online. Textures do load but still some freeze. I was expecting something a bit smoother, like the character still playing the animation and the texture filling little by little like some games do

[cold parrot]

Loading a texture from disk will always cause a main thread freeze, duration depends on its size.

[next sparrow]

So what's the point of loading async?

[cold parrot]

The actual loading is async, the object init is not

[next sparrow]

Hm, so if I want to make it faster I'd need to add some multithreading ?

Is it possible?

[cold parrot]

Not really

Multithreading is already there (internally) if you use webrequest

[next sparrow]

Ah I see

[cold parrot]

Best you can do is load images as structured byte arrays (DDS) and write those directly into a preallocated texture

[next sparrow]

Ok, just one last question then, what takes more time, the texture loading or the texture init ?

[cold parrot]

Depends on how big the image is, it’s format and where you load it from. Typically though, the decompression (jpg/png) takes the longest (assuming SSD on the local PC)

[next sparrow]

Ok, and the decompression happens only once during loading then?

[cold parrot]

it happens whenever you load/save an image to disk as jpg/png unless you cache the compressed byte array

[next sparrow]

Got it, thanks!

[kind tide]

hey guys

[swift falcon]

Hello guys, I am wondering if someone can help me with a question about null handling. Is a simple null check with an if statement the standard in Unity or using C# try and catch (error handling system) a better practice?

[plucky inlet]

avoiding null would be best practice, but if you cant avoid it for some reason, having a simple null check is totally fine

[hard estuary]

NullChecks seem to be better for scenarios where you want to have an individual reaction to each possibility. E.g.:

if (renderer == null)
  renderer = GetComponent <Renderer>();
if (collider == null)
  collider = GetComponent <Collider>();
if (stats == null) 
  Debug.LogWarning ("Stats variable is not set up in GameObject: " + name, gameObject);

TryCatch seems to be better if you want to cover a bigger area of code with a single reaction. Also, TryCatch is pretty neat if you're using methods you don't want to modify.

[swift falcon]

@hard estuary so for simple object collisions a try-catch will be a little overkill I guess

So for simple code this:

Player player = other.GetComponent<Player>(); if (player != null) { player.damage(); }

Is better than this:

try { player.damage(); } catch (NullReferenceException err) { Debug.Log("Object other is Null"); Debug.Log("System Message: " + err); }

Thank you both

[thin aurora]

Do not try-catch expected behavior in your code ever. You are always able to check beforehand if certain conditions are met, and bail out of execution if predicates meet. Try-catching exists to handle unexpected exceptions in your code that do not happen under normal circumstances , and the point is properly informing users and handling the code in an alternative way if it can be saved. Throwing exceptions is also costly on performance.

[plucky inlet]

If you get a null error, you SHOULD get it to know your code is not optimised very well. Guessing that you might have an object or not is a bad habit of avoiding errors 😉

[faint horizon]

Hi there. Does anyone know how I can set the default parameter for a Vector2 to zero when passing it via function parameters? I've tried the following but I get an error.

public void init(Vector2 pos = Vector2.zero) { }

[thin aurora]

By default it is 0.

[faint horizon]

Oh I see

OK that makes sense. Thanks 🙂

[thin aurora]

Value types are initialized using default values, and integers are 0 by default 😄

[steady moat]

Follow the recommendation listed there: https://learn.microsoft.com/en-us/dotnet/standard/design-guidelines/exception-throwing

[thin aurora]

Google "reference" types and "value" types. It's very useful to understand the differences. Reference types are null by default and value types can't be null @faint horizon

[faint horizon]

@thin aurora So if I want to pass nothing via the parameters would this still work?

[thin aurora]

Make your method declaration public void init(Vector2 pos = default) { } and you won't be required to pass the pos parameter.

[faint horizon]

OK yes that's worked

Thank you 🙂

[plucky inlet]

seriously? you owe me 10 second sof my life 😄

https://docs.unity3d.com/ScriptReference/AnimatorStateInfo-loop.html

[thin aurora]

You also owe me 10 seconds
https://docs.unity3d.com/ScriptReference/Animator.GetCurrentAnimatorStateInfo.html

[plucky inlet]

So you want the next state?

Or any?