🖼️┃2d-tools

[snow willow]

The problem is in both places 🙂

i.e. there are multiple problems

[cloud crypt]

Somehow I can never seen to get ground checks to work. Maybe it's too much for my peanut brain. I always just do ground checks as if (rigidBodyPlayer.velocity.y == 0) grounded = true;

I'm gonna mess around a bit more with the code, if it doesn't work i'll just have to stick with my previous flipping at random intervals code that at least worked as primitive as it was

[cloud crypt]

I seem to have figured it out, thanks for the help. Though I found another problem in doing so. Not sure why or how but my enemies get stuck on supposedly perfectly flat terrain.

[warm mango]

hey guys, I have a question regarding two colliders with triggers overlapping

what happens, is when a player interacts with a gameobj that also overlaps with another trigger, both run at the same time. Is there a way to check if player is already activating a trigger?

for example this would happen when the colliders overlap

[austere seal]

You could make a script to check which one's closer, and then only display the dialog for that one

[warm mango]

i see, so check distance from player, and prioritize the closer one

okay i'll give that a shot, thank you

[cloud crypt]

I know without the code there's not much one can say but both creatures are using (inheriting) the same script yet they are behaving differently. The size difference isn't the problem either as seen by the TestBots on the left. Any possible ideas to look into or not without seeing the code?

(Or does this go in #💻┃unity-talk ? these channels are confusing)

[snow willow]

If the code is the same, next thing to do is check how the objects are set up. I'd be particularly interested in those Ground Check and Wall Check references. Are they referencing the correct objects for each monster? I also notice the wall check is quite close to the ground for the slime. Could it be touching the ground by accident?

[kind island]

if you see closely in the pic (i've zoomed out to protect my sprites from copyright), there is a green thingy called the goblin in the middle right. There is a navigation yellow circle called the seeker, but whatever i do, they always keep the same distance, i couldn't make them together at an equal distance

any way to bring the yellow circle in touch with the green thingy
pls help

[compact knoll]

couple things unrelated to your issue:

1. you should look into using a tilemap for your level instead of manually placing a bunch of copies of the same object everywhere
2. nobody is going to come and steal your assets from screenshots because it's just not worth the hassle of doing so

as for your issue, could you please provide more information about what you want to happen?

[kind island]

i want that yellow seeker which comes from a unity package to meet with that yellow goblin, whenever i move the goblin, the yellow seeker moves with it

[compact knoll]

i assume you are using Aron Granberg's A* Pathfinding since there is an A* object in your scene. the basic AI Path script that comes with it will make it use the shortest path to get to its target which is set with the AI Destination Setter. If you want it to stop when it is within a certain distance of the target you can modify the options on AIPath to change the end reached distance and the "when close to destination" behavior.
If you want more in depth behavior than that, you will need to write your own script to handle it

[kind island]

yes, it has a yellow seeker right?

i want that seeker to meet with the green thing

but they move away from each other every time i try to drag it to each other

nvm i solved the problem

thank you

[neat hare]

Hi! How can I parent an object with code to another object?

[fleet remnant]

transform.parent is your current objects parent that you are running your code on

so you get a reference to a different objects transform that u want to parent to the first object and you go

transform.parent = reference

[chrome grove]

When importing a sprite sheet, I'm getting feathering/weird transparency even with Point (no filter) enabled. Any suggestions?

[warm mango]

i usually add

compression to none too

[chrome grove]

Tried that but no luck. Turns out my sheet was too long, causing it to be compressed that way. Thanks for the tip Iw as able to figure it out from that.

[inland wind]

I have a question i was hoping you guys could help me with. i am trying to make a lazer beam enemy. i already have it so it aims at the player but now I want to make it so that if it doesn't hit the playe it doesent just stop at the players currnt position but it keeps going until it hits something.

[snow willow]

use a raycast

[inland wind]

idk how tho

im relitively new to coding

so im not that gud

im using a line renderer for the lazer beam with a texture sheet animation.

[snow willow]

This tutorial goes over a lot. It does prefab projectiles, as well as raycasts with LineRenderer https://www.youtube.com/watch?v=wkKsl1Mfp5M

[inland wind]

ok thanks

i'll check it out and hopefully it helps

gotta sleep now tho

watch it tommorrow

[thin bear]

I'm trying to add an animated tile to my tile palette with rules

I know how to create an animated tile and I know how to create a rule tile

but how do I combine both?

found it

rule tiles can be made animated very easily

[spiral solar]

Found an interesting thing this AM: Unity's Tilemaps have an undocumented bit in TileFlags. It's not in the enum definition in code but they appear to use bit 4 (i.e., 0x20 or 0001 0000) to signify whether or not animation is running. I noticed this in an inspector for an animated tile - there's an inspector button to turn animation on/off. I can post an image if anyone is interested. Curious to know if anyone else has ever seen this.

[still tendon]

what does unity do when i change a tile in a tilemap through csharp tilemap.SetTile(coord, tile)
i have an array that sets the tiles of my tilemap but i do not know what excactly this line of code changes. does it create a new single tile with its own collider or will it be seemless with my previous compound collider?

[spiral solar]

the tile is an asset in your project folder. When you SetTile, it sets a reference in the Tilemap to that asset and calls StartUp, and GetTileData in the tile. The data returned from GetTileData is copied into the Tilemap internally.

[still tendon]

thx. is there any popular unity game that has used a 2d array to set and change tiles in a tilemap in real time?

[spiral solar]

Don't know, but that's what I'm doing in my project which will undoubtedly be unpopular

[old snow]

does someone know how to move an object in the direction of the mouse? i searched on internet for 1 hour and i found only tutorial to move an object to the position of the mouse. thanks

[grand cove]

I mean, this depends on a lot of things, which is probably why you had a hard time finding this.
You usually convert the mouse positions from the screen to the world position and make the object move according to it's current movement abilities to that position, depending if it uses path finding or something else.

[ancient path]

use the difference of the mouse position and the transform.position

then normalize it

and then you got the direction on where the mouse is according to your gamobject
and to move it you can use different ways

[grand coral]

fyi that ^ would look like (Input.mousePosition - Camera.main.WorldToScreenPoint(transform.position)).normalized

[snow willow]

I'd say the opposite

[grand coral]

oh ok

[snow willow]

you want to put the mouse position into a world position

then move the object towards that

[grand coral]

i guess i didn't really understand the question then

i thought they wanted to move the object as it appears on the screen towards the mouse on the screen

[ancient path]

can you explain, Camera.ScreenToWorldPoint(Input.mousePosition) does convert it to a world position

[grand coral]

it converts the mouse position on the screen to where it would appear in world coordinates

[ancient path]

and dont use Camera.main in update

[grand coral]

ok well i wanted to demonstrate with one line

[ancient path]

its no problem its just that camera.main finds the camera, so its better to use it to set a reference

[snow willow]

That's not what ERSUCC put here #🖼️┃2d-tools message

they put WorldToScreenPoint

on the object position

[ancient path]

oh yes

didnt see that

[dull vortex]

I'm working on a survival game where the user can place objects like chests and other structures. I'm looking to create some kind of effect that shows valid placement locations by highlighting them in green and invalid locations in red. The invalid locations are a mixture of non-pathable tiles on a tilegrid, and other gameobjects such as existing structures/trees/etc. It would also need to dynamically update as the player places or removes objects.

My current idea is to create another tilegrid of red and green tiles that I can just turn on and off as needed. I can loop through the impassible terrain tilegrid to find which tiles cannot be built on, but what would be the best way of accounting for the non-tile gameobjects? Or is there a better way to accomplish all this?

[crude dome]

Im trying to make a movement script learning from a video it works fine and uses AddForce but it seems very unresponsive like my sprite gets dragged and when I try to press the other direction it waits like 2 seconds and holding it/spamming the key increases the speed

[ancient path]

use different force types

[crude dome]

i tried force and impulse

both does the same

[ancient path]

then setting the velocity?

or acceleration

[crude dome]

ok

[snow willow]

to increase the responsiveness you need to either increase the force amount, or decrease the mass of your object

[crude dome]

ok

it pushes me hella far

like respsoniveness i mean like when i try to press d then a

it waits likee 3 seconds

[snow willow]

yes

this is basic physics

objects have momentum

[crude dome]

wont increasing the force amount send me flying even more?

[snow willow]

you have full control

add more force when slowing down to slow down faster

add less when already going fast to not fly off into the sunset

the code does what you tell it to do

[crude dome]

okay, im a beginner

so it's kind hard

kinda*

[finite garden]

Hey guys; I'm trying to make a top down sniper effect where the player right clicks to zoom out. I'm having a few issues; such as my camera moving way too fast due to the mouse being moved around during the aiming process; I tried to remedy this by slowing the rotation of the player but unfortunately I'm having issues making the turning slower.

I basically want to create a limited pan camera above a top down player; that can only go out as far as the specified zoom level; while maintaining a constant viewspeed.

[old snow]

@grand cove @ancient path thank you very much! I’ll see that later

[still tendon]

Right now i'm using a raycast to detect conveyers under a item for my game (The point of the game is being a physics based factory game) to apply a force to the obejct, and it also checks which conveyer under it is on top. Is there any way to optimize this code?

    void ApplyConveyerForceAtPosition(Vector2 position)
    {
        RaycastHit2D[] hits = Physics2D.RaycastAll(position, Vector2.zero, 0, LayerMask.GetMask("Conveyer"));

        int mLayer = -1;
        Conveyer c = null;

        foreach(RaycastHit2D hit in hits)
        {
            Conveyer c2 = hit.collider.GetComponent<Conveyer>();
            if (!(hit.collider is null) && c2)
            {
                int order = hit.collider.gameObject.GetComponent<SpriteRenderer>().sortingOrder;
                if (order > mLayer)
                {
                    mLayer = order;
                    c = c2;
                }
            }
        }

        if (c != null)
        {
            rb.AddForceAtPosition(c.transform.up * c.speed, position);
        }
    }

[still tendon]

I just feel like there has to be a better solution them manually checking sorting order

[civic knot]

I'm not even sure how that works, considering the raycast direction is zero..?

[prisma ocean]

Guys, say I wanted to make an interactable map in a space exploration game like the one in starbound. Could you set me on the right track on how to handle this please? Should I make everything on a ui canvas, or should it be made out of gameobjects (the stars and planets etc)?

I saw something about using another camera to view objects on another plane and then render that in a window, would that be a good solution?

[short goblet]

i am struggling with a super weird issue where my FOV shows up fine in the editor but the mesh isnt visible in game

has anyone experienced that before? i can share my code but i am not sure if its a code issue or if there is something i need to do in the editor

(orange dot is the issue)

[still tendon]

Raycast 2d can detect colliders at the start of the ray

[civic knot]

You mean if they're overlapping?

If the start position is within the collider?

[still tendon]

Yes, if the origin of the ray is inside the collider it will return the collider. The solution I am using is working, it just seems like there'd be a better one

[civic knot]

Why not use a collision event like OnCollisionStay/Enter/Exit?

[still tendon]

Becuase this function is called for 4 points that might not necessarily have a collider there. 4 points on each item raycast down to see what is beneath them them apply the force at that position

Having 4 colliders, one for each point seems even worse then the raycasting

[civic knot]

you say "raycast down" but your direction is zero. You just check a point.

Are these points on different parts of the item?

[still tendon]

Yes,

Just using more effecient checks and sorting would help, since this function is called very often

[civic knot]

Why do you need these 4 points? can't you apply force at the first contact point?

[still tendon]

It lets conveyers rotate items if only part of it is touching it

Giving the illusion of more realistic physics then there are

[civic knot]

a properly configured rigidbody would rotate as well.

[still tendon]

Not in the cases I would want it to

Let me draw something

I'd expect the item between the 2 conveyors to spin here

[civic knot]

hmm

[still tendon]

The proper effect can be achieved in 3d physics with very simple code

But not 2d

https://youtu.be/hC1QZ0h4oco

[civic knot]

Well, if it's performance that you're worried about, I think 4 circle colliders would do better than your raycasts. Assuming you detect collisions from the conveyor belt and not each item.

[still tendon]

Each item does checks,

Hm that's a good point though

Having the conveyors check would mean a lot less calls

I'll give the circle colliders a try,

Thanks!

Wait but that leaves the problem of only wanting the topmost conveyer to affect it?

[civic knot]

Make sure you cache stuff and don't use too much GetComponent in collision events.

[still tendon]

Right,

I'll make sure to

Thanks

[civic knot]

Can they be stacked on each other?

[still tendon]

They can be stacked on top of each other yes

[civic knot]

Hmm

Well, you could disable those that are below.

or can they move something?

[still tendon]

They can be placed to cover only parts of each other

So disabling the entire conveyor would be problematic

[civic knot]

hmm

Maybe lock an item to a conveyor belt when it's placed on it so that other conveyors ignore it?

Or better: place the item on a layer corresponding to the conveyer and let conveyors on other layers ignore it.

[still tendon]

But other points still obey the conveyor they're over

Maybe just ditching the behavior overall would be easier

But I'm worried it will look odd

For now I'll just experiment

Thanks for the help

[civic knot]

👍

[still tendon]

i need help with save and load game

i will use binnary code

or Json

[still tendon]

I used a binary writer for all my saving

[shy blaze]

Hey how can i make difference between two objects for example like in game "Where's My Water?"

[still tendon]

ok

[next jetty]

Is it normal that Edge collider 2D object with rigidbody... goes through other objects (terrain), even goes through crazy big chunk of terrain, completely ingoring rigidbodies and colliders?

ah it's probably because im moving object with transform

[balmy umbra]

hi im sure everyone knows the "getting stuck while walking" glitch to which the solution is using a capsule collider. But i have to use a box collider so are there other methods to fix it?

[next jetty]

you mean character gets stuck on terrain sometimes? currently investigating stuck problems as well 😄

Im newbie so cant give an anwser. But i used Platform Effector 2D for terrain and it fixed similar problem for me.

[grand coral]

try adding a physics material with no friction to the floor

also try disabling rotation on relevant axes on your rigidbody

[balmy umbra]

i allready did that the problem is im using a tilemap collider

[grand coral]

oh i see

[balmy umbra]

do you know any methods to fix it?

[grand coral]

not sure, i haven't used tilemap colliders before

[balmy umbra]

oh

ok thanks for helping me

[covert whale]

have you put a composite collider on it?

the character is getting stuck between each tile's collider, a composite makes them all one collider

[balmy umbra]

i didnt do that, thanks!

[balmy umbra]

its still not working

[covert whale]

how are you moving the object

[balmy umbra]

i set the velocity

[covert whale]

does it not move at all?

[balmy umbra]

yes

[covert whale]

do either the tilemap or moving object have a no friction material

[balmy umbra]

no

oh wait

[covert whale]

make a new physics material, set it to no friction and put it on one of the rigidbodies the colliders

[balmy umbra]

the collider object got two colliders and one ridgedbody do all of them need the material?

[snow willow]

only colliders can use materials

[covert whale]

try putting it on both

[balmy umbra]

i did but its still not working

[covert whale]

how much velocity are you setting the rigidbody to

does addForce work

[balmy umbra]

i can still see the collision shape of the tilemap collider is that bad?

[covert whale]

of the individual tiles?

it should be one collider

[balmy umbra]

i use it for the jump and that works

[balmy umbra]

yep

[covert whale]

then you haven't added a composite collider 2d

[balmy umbra]

i have

[covert whale]

could you show a screenshot?

[covert whale]

sorry i forgot to say you need to check 'used by composite' on the tilemap

[balmy umbra]

ohhh

thanks!

[prisma ocean]

Not sure where to ask this; This is a 2D viewport (the black background) on which there is a ui screen, on top of which there is the viewport for another 2D orthographic camera (the red background). The frame and the button are part of the UI canvas. I was wondering how I would make the button appear above the red viewport?

[calm wyvern]

either you need another canvas over the 2D overlay camera or you could render the 2D overlay camera into a texture and use that on a RawImage Conponent in your UI

[hollow wolf]

I have a problem with raycasting: I'm trying to make a ray that check for ground to see if you can jump, but it's randomly letting me jump infinitely above and below certain y levels. Does anyone know if this raycasting code is written wrong?

[ancient path]

Ray contains something called distance

[hollow crown]

https://docs.unity3d.com/ScriptReference/Physics2D.Raycast.html

public static RaycastHit2D Raycast(Vector2 origin, Vector2 direction, float distance = Mathf.Infinity, int layerMask = DefaultRaycastLayers, float minDepth = -Mathf.Infinity, float maxDepth = Mathf.Infinity);

float distance = Mathf.Infinity

If you don't provide it, that's the default

[hollow wolf]

I saw the documentation about the max distance, but how does that affect the 0.1 distance I'm checking for?

[ancient path]

One your operation is prune to errors.
2 it also is unnecessary because you can set it in the method

[hollow crown]

You should debug what it's hitting regardless

Draw a ray there, see if it's not just hitting your character

[brittle hollow]

Looking for a bit of insight on where to begin with making a 2d book in Unity whose pages can be flipped left and right

im seeing a few assets on the store like page curl pro

but I wanted to get some ideas from the community if theres a better route to go

anyone know any good roads to look down?

googling "making a 2d book unity" usually gives me scholarly books for learning unity

[craggy kite]

Wondering what happens when your values get negative. Do they? Like valueA lets say, 1 - valueB ( - 2 ) for example?

I would just use maxDistance and not hack my way around it to get the same result

[covert whale]

on a canvas things render on the order of their hierarchy, so try putting the button after the red viewport in the canvas hierarchy

if they're on different canvases then change their sorting layer/ order in layer

[next jetty]

is there any way to make my character to have ability to jump for 0.2seconds, even tho he went off the edge of terrain and already falling?

[covert whale]

yeah this is called a cayote jump, a way to do it would be to have a bool for jumpEnabled, set it to true when the player first leaves the ground, keep track of the time either using a coroutine or a timer in Update, then set the bool to false if the player is still not grounded
then whenever the jump input is given you check jumpEnabled

[next jetty]

Ah thx. That makes sence. Hope i can implement this in my mess of a newbie code... 😄

[slim cradle]

Can I ask why the PowerUP part is not functioning

https://paste.ofcode.org/gBfwswmUT4cnNTEHktxKsB

basically the game is defend a planet while enemies tries to rush b it and you die if planet health reaches 0

[compact knoll]

which part specifically is not working?

[slim cradle]

The powerup part

The last part

Its supposed to double the ship's speed temporarily

[jolly narwhal]

you're not changing the speed anywhere

[compact knoll]

☝️ you are changing timeCounter, but not the speed at all, just using it in your debug statements

[slim cradle]

So I need to change the last part?

[compact knoll]

yes, you need to actually change the player's speed otherwise the speed will remain the same

[slim cradle]

So I basically have to get private void speed?

Then somehow fix it

[jolly narwhal]

If you want to increase the player's speed then you'd change the variable called speed instead of the variable called timeCounter

So I'd assume writing speed = 4.0f; (which is double the default of 2) instead of timeCounter = 100.0f; would get you started

[slim cradle]

How about if I want a powerup where I do double the fire rate?

[wide lagoon]

Daily round of asking if anybody knows how the tilemap renderer knows the Z (layer) value of a tile, and how (if) I can read it in a shader

[covert whale]

the z layer isn't taken into account with rendering i don't think

[prisma ocean]

Do sprites only work with the sprite mask or with mask and rect mask 2D aswell?

[covert whale]

sprite mask for sprites and rect mask for ui, the two aren't interchangeable

[prisma ocean]

ty

[old sail]

When someone is making a clickable map similar to something like FTL's map. Would you do that with game objects or with UI elements? What's the best practice?

ex: https://images.squarespace-cdn.com/content/v1/5756c45d7c65e442c1afd446/1514835414291-TFO0UPOPT1M5VZI71BGY/FTL2.png

[craggy kite]

UI elements would be my choice. If its just plain 2D, there is no reason to fiddle around with position in 3D space, just make it a 2D map with a mask or whatever you prefer. You can still use UI elements like simple gameobjects, scale them and what not.

[covert whale]

you could do it as both sprites and UI, but i would do it with UI given all the extra unity components like layout groups, masks, text objects etc

and more options for scaling too

[next jetty]

Can someone help? My trap shoots arrow. But i want arrow to get destroyer after it hits wall. So i used oncollision2d {Destroy(gameObject)}.
The problem is... my trap needs to have arrow object assigned so it will shoot it. After arrow gets deleted, it can't find object and it stops shooting. How to handle this?

[covert whale]

have a prefab of the arrow and instantiate that, instead of instantiating from an existing arrow

[next jetty]

ah... thx will try.

[hard talon]

hi! what would be the best way of implementing a push/pull animation whenever my player object is on the right side of my pushable object and is moving right/left, and vice versa? tried setting up a raycast but that didnt seem to work

[covert whale]

so how does the push/pull sequence start does the player need to input something then it grabs on?

[hard talon]

yup! the player has a raycast, and if the player walks up to an object that has a certain tag on it and presses E, the player is able to drag the object in whatever direction they walk in

[covert whale]

ah ok

so you have a reference to the object, and you know the direction the player is moving in

[covert whale]

you can get which side the object is on using something like
(object.transform - player.transform).normalised.x and this will give you either 1 for if the object is on the right of the player or -1 if the object is on the left of the player
then you can check that against the player's velocity.normalised.x and if they match (so object is on the left and player is moving left which would both be -1 for example) then do a pushing animation, and if not then do a pulling animation

and i assume you already have some sort of system for flipping the sprite of the character depending on their direction, if not then that's just setting the transform's z rotation to 180 or 0 depending on if they're moving left or right

[hard talon]

okay, ill try that! thanks! 😄

[hard talon]

excuse the late response! i tried it and it didnt end up working, not sure what went wrong

        Vector2 playerVel = rb.velocity.normalized;
        if (playerDir == playerVel)
        {
            anim.SetBool("isPushing", true);
            anim.SetBool("isPulling", false);
        }
        else
        {
            anim.SetBool("isPulling", true);
            anim.SetBool("isPushing", false);
        }```

[mint geyser]

this will only set it when they are exactly aligned
you should instead use the dot product of them i.e Vector2.Dot(a, b)

the closer the dot product is to 1 the more aligned the two vectors are

so you can do something like if it is more than or equal to 0.9f

a visualization if you're into those sorts of things https://twitter.com/FreyaHolmer/status/1200807790580768768

Freya Holmér (@FreyaHolmer)

dot product - visualized ⚪

the dot of two normalized vectors, as shown here, can say how similar they are

a • b = 1, same direction
a • b = 0, perpendicular
a • b = -1, opposite directions

you might also be able to see why it's sometimes called scalar projection~ https://t.co/vg8TwNZ8qs

Retweets

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Twitter · Nov 30, 2019, 4:04 PM

[hard talon]

tried your suggestion, didnt end up working either

        if (dot >= 0.9f)
        {
            anim.SetBool("isPushing", true);
            anim.SetBool("isPulling", false);
        }
        else
        {
            anim.SetBool("isPushing", false);
            anim.SetBool("isPulling", true);
        }```

thanks for the visualization though!

[mint geyser]

np

[mint geyser]

try do dot with playerDir and playerVel maybe?

[hard talon]

nope, didnt work

[mint geyser]

sadge

[hardy harbor]

Hi everyone!

I have a 2D project with a specific situation in which I need to use a Z scale set to -1f for sprite renderers to allow my shader to work

In general, is there any worry with setting Z scale to -1 for a 2D project? Any particular impact that I should prepare for?

Thank you!

[amber socket]

I was wondering how I would test to see if the box collider trigger on my object's child is overlapping.

I figured I could use something like this:

player.GetComponentInChildren<BoxCollider2D>().IsTouching() == true

But it didn't work, and I tried some other variations as well

[turbid heart]

GetComponentInChildren also returns the component on the parent if it has it. What doesn't work?

[amber socket]

Because I am using it to check for the ground, it would need to check for the ground, but I'm not sure how to do it in the update loop/method

[snow willow]

either keep track of whether it's currently touching with a bool that you set in OnTriggerEnter/OnTriggerExit or use the direct physics queries like Physics2D.OverlapBox()

[amber socket]

Oh, thx for the info, I actually already got it working

[amber socket]

I actually have another issue to resolve:

I have a jumping script I just made that is working really inconsistently, and it's referencing the same thing from earlier.

//Jumping Code
if ((Input.GetButton("Jump") == true) && (player.GetComponentInChildren<BoxCollider2D>().IsTouchingLayers() == true))
{
  Vector2 movement = new Vector2(0, jumpForce);
  player.GetComponent<Rigidbody2D>().AddForce(movement);
}

I got the child object to return true upon touching layers which works for now, but I would need to switch this out for something else later.

I am also getting this error where the jumps on my character are really inconsistent.

And yes, this is within the update loop

[ancient path]

Why do you use that and not a Raycast shape?

[ancient path]

Probably because it’s in update

And for physics FixedUpdate is better

And a tip is to save and not use get component in that update

[compact knoll]

there's a few things wrong here:

1. cache your components rather than calling GetComponent every frame for better performance
2. You should probably be using ForceMode.Impulse for a jump since ideally you would want all the force applied at once
3. Because your jump is handled in Update, there are probably several frames where it is applying force before it is no longer grounded, you will probably want to use GetButtonDown so it only calls it on the frame it is first pressed instead of every frame the button is down.
   Alternatively for that last part, you could handle your jump in FixedUpdate like No one suggested, it would be more consistent that way and you could continue using GetButton, you would just need a bool to check when to apply the jump force in FixedUpdate

[amber socket]

Oddly enough, when I used GetButtonDown, it wasn't working, so I will probably be rewriting my code tomorrow with Impulses and a FixedUpdate method.

[compact knoll]

it wouldn't have worked very well without using the Impulse anyway

[amber socket]

Also, I'm relatively new, so it may take me a bit to truly optimize it, so for now I'm going to get the child of the object.

But thank you for the suggestions

[compact knoll]

just cache the references in Start or Awake or something, then you don't have to call getcomponent, even if it is on a child

you already have a reference for "player" just get a reference to the rb2d and collider the same way you're getting the player reference

[amber socket]

So for instance,

GameObject generalizedName = player.GetComponentInChildren<BoxCollider2D>();

So I can reference it more easily

[ancient path]

You got the sprit

But instead of gameObject do BoxCollider2D

Because you are getting that component

[compact knoll]

sorta, that's not quite correct. You would want to make a class level variable for it and in start or awake you could assign the value and like No one said the type isn't correct.

[amber socket]

ohhhhhh. ok

I'll make sure not to screw it up, lol.

[covert whale]

so in order to be able to compare them you'll want to have two ints of just playerDir.x or playerVel.x

currently you're also comparing the y which isn't relevant and also since vectors are stored as floats using == can have issues since there can be floating point errors

so you'll need to convert the x of each vector to an int

[novel pewter]

TIlemap.Color won't work when access and changed at runtime by script, anyone know why?

[storm coral]

Why is my polygon collider looking like this? Code at https://paste.mod.gg/flpimwfeitcu/0

the circles are fine, but the poly collider seems like its being shrunk

[hard talon]

how would i go about doing this? right now as is 'normalized' has a red line under it saying that float doesnt have a definition for normalized. i thought just changing what theyre checking specifically would work

        Vector2 playerVelX = rb.velocity.x.normalized;
        if (playerDirX == playerVelX)
        {
            anim.SetBool("isPushing", true);
            anim.SetBool("isPulling", false);
        }
        else
        {
            anim.SetBool("isPulling", true);
            anim.SetBool("isPushing", false);
        }```

[marble badger]

should i check for ground only when in air or all the time

[covert whale]

other way round, so something like
int playerVelocityX = rb.velocity.normalized.x

you may have to cast it to (int) i forgot if you need to

[covert whale]

how do you know if the player is in the air? by checking if it's grounded, so yes you would have to check it all the time

[marble badger]

what if i check for if it is already grounded then do the ground check like:
if (!grounded)
{
do some raycast to find out if it is grounded
}
that way i can cut back on doing raycast all the time. It is a good option? Do people do that?

the if is in the update

[covert whale]

but how can grounded be false in this case? if you only update the grounded variable while it's in the air, then if it comes to the ground and leaves again then the raycasts won't be called, and grounded will still be true

[marble badger]

i don't how i missed that 👀

are you aware of state design pattern

[covert whale]

yeah i've used it a few times

[marble badger]

should i check for ground in every concrete state
or
check for ground in the update of the context class

since one need to know all the time if it is grounded or not

[covert whale]

if you have the state grounded and air, then check if it's grounded in both of their Update's, and change to the other state accordingly (so if grounded and it's air, then swap to grounded)

then you can have your following states inherit from either grounded or air, and so they won't have to run their own ground checks

[marble badger]

i was referring to doing this, inside the context class as in the statemachine class:
update()
{
do groundcheck
currentState.update();
}

[covert whale]

right you could also do it there too

then check in each state if it's grounded

[marble badger]

after building my state machine can i pick your brain about it some other time?

[covert whale]

sure thing

[marble badger]

i will ping you then

[covert whale]

if you need a tutorial for a state machine for a platformer then this series is nice
https://www.youtube.com/watch?v=78PLsHnRXiE&t=325s

[marble badger]

Thanks. I am also currently checking that out

[hard talon]

there's a red line under normalzied and it says that float doesnt contain a definition for normalized when I type "int playerVelocity.x = rb.velocity.x.normalized;"

[jolly narwhal]

correct

which is why you should type what @covert whale suggested instead

[covert whale]

i wrote out the line there and that shouldn't give you any errors

[hard talon]

oh my bad, didnt swap the x. tried it and it says i cant convert 'float' to 'int'. when i try to put a parentheses around the int, it says that the left hand side of the assignment must be a property variable or indexer

apologies for all of the questions i'm new to unity 😅

[covert whale]

oh so you need to cast it and that would be
int playerVelocityX = (int) rb.velocity.normalized.x

[jolly narwhal]

Do you really want it to be int? If you make it an int then it rounds the value down to the nearest full integer.

[covert whale]

it's already normalized so it would be -1 or 1

[jolly narwhal]

yeah you probably don't want it to be an int

unless you specifically want either -1, 0 or 1

[covert whale]

yes that is the intended set

because all that needs to be compared is if it's on the left or right

[jolly narwhal]

carry on then 😄

[hard talon]

ok! that worked 😄 possibly last question, there's a red line under playerVelX where I'm comparing it to playerDirX saying "cannot convert int to vector2". how would i solve that? tried doing the same int casting thing on playerDirX but that just gave me a bunch of red lines.

        int playerVelX = (int) rb.velocity.normalized.x;

        if (playerDirX = playerVelX)
        {
            anim.SetBool("isPushing", true);
            anim.SetBool("isPulling", false);
        }
        else
        {
            anim.SetBool("isPulling", true);
            anim.SetBool("isPushing", false);
        }```

[covert whale]

for comparisons you would need to use ==, = is for assigning
you'll also want to do the same conversion to int but instead of rb.velocity it's the box.position - rb.position, and you forgot to change the type of PlayerDirX to int

i recommend doing some tutorials on the c# basics it'll help in the long run

[hard talon]

will do! last thing, the 'position' in box.position is now underlined in red, says 'GameObject' does not contain a definition for position. why would that be? i have box as a public gameobject that i assigned in the inspector

        int playerVelX = (int) rb.velocity.normalized.x;

        if (playerDirX == playerVelX)
        {
            anim.SetBool("isPushing", true);
            anim.SetBool("isPulling", false);
        }
        else
        {
            anim.SetBool("isPulling", true);
            anim.SetBool("isPushing", false);
        }```

[covert whale]

because you need to access the transform, so box.transform.position
and the first line would need to be
int playerDirX = (int) (box.transform.position - rb.transform.position).normalized.x
reason for the brackets is because you want the normalized vector of both, not the first minus the normalised second
but generally if it's not in code blocks then don't take it literally

[hard talon]

okay! thanks 😄 that got rid of the red line, but doesnt allow me to actually pull or push the item anymore 🤣 thank you though! i think i can figure it out

[glossy marten]

Anyone know how to fix this? My character gets taller and smaller after each animation

[grand coral]

just change your animation so it doesn't change the overall size of the sprite

i.e. don't move the helmet part up so far or something like that

or move everything down a bit instead of spreading each part out vertically so that the feet stay in the same spot but the rest moves

[glossy marten]

So you mean I shouldn't do this?

and have them on the same place?

[grand coral]

i can't see an animation from a series of images like that sorry

but if you set the pivot point of the images to the bottom center instead of center center it should help maybe

try that before redesigning your animation

[glossy marten]

I tried that but nothing happened

[grand coral]

did you apply the changes?

after switching the pivot

[glossy marten]

I will dubblecheck

Yes It didn't work

[grand coral]

hmm

make sure your images fill the area, it looks like there's whitespace around the images that could be affecting it

[glossy marten]

I sliced them automatic

so they all fill the area

[grand coral]

ah that's the problem

see how they're all different sizes

the green boxes are smaller in the middle

try making them all the same size

[glossy marten]

The green boxes only?

[grand coral]

yeah

so the middle green boxes will have whitespace at the top

which is fine, it won't display

but that will ensure that when the image switches, the sprite stays in place

even though the image will appear to shrink the object won't

[glossy marten]

I tried making them the same size before but it didn't work but i'll try again

It worked 🙂 thanks @grand coral

[grand coral]

awesome! 👍

[glossy marten]

Just a quick question

The green boxes

is the the collider

of the animation

[grand coral]

i don't think so

[glossy marten]

whats that?

[grand coral]

the collider is defined separately, along with the sprite object in the hierarchy not with the image asset

that green box is for 9-slicing, a method of resizing sprites

so to change the size of the sprite image, use the blue circles not the green squares

if you move the green squares it only affects something when your resizing mode is set to sliced

[glossy marten]

Is there any way to make seperate colliders for an animation? because I have an animation when my character is very big and I want the collider to be big there aswell but then small when making another animation

[grand coral]

yeah, you can change the size of the collider in a script

[glossy marten]

Okay thanks 🙂

Can I add you?

[grand coral]

sure

this might be what you're looking for btw https://docs.unity3d.com/ScriptReference/BoxCollider2D-size.html

[glossy marten]

Thanks, I added you

[brittle smelt]

how do i lock the movetowards function in only one axis?

[hoary ginkgo]

Is there a way to call a coroutine only on the first collision

[turbid heart]

a boolean to keep track of if the collision is first collision, perhaps?

[hoary ginkgo]

Well let me share my code

I have falling bombs that fall and land on platforms, after three seconds they blow the platform up, if it is touching it player it kills the players and the game is over

The bombs also destroy each other

The issue is if a bomb falls on a platform, then a bomb lands on it, the bombs blow up but the platform/player do not

[turbid heart]

no. see #854851968446365696 on how to post code please

it sounds like what you can do is just use a boolean that is set to true when the bomb touches something, then you can use that to ignore other collisions

[hoary ginkgo]

http://pastie.org/p/7CwvIhVfZb39vuIFUWevcn

Sorry, Kind of new here, Posted like that before, no one said anything

[turbid heart]

also, instead of doing this

        if (isTouchingPlayer == false)
        {

        }
        if (isTouchingBlock == false)
        {

        }
        if (isTouchingBomb == false)
        {

        }

you can do

        if (!isTouchingPlayer || !isTouchingBlock || !isTouchingBomb )
        {

        }

but of course, it depends on the logic that's going to be in the if statement blocks

[hoary ginkgo]

It doesn't do anything if they are false

[hoary ginkgo]

Man, I love this, Still have not fixed my problem but it is way easier to look at

[hoary ginkgo]

I am thinking I have to add the collisions to a list or array and then destroy all objects in said array

[compact knoll]

you could do something like

if (other.gameObject.CompareTag("Player") || other.gameObject.CompareTag("Block") )
{
  isTouching = true;
  //do your other stuff here
}

if(other.gameObject.CompareTag("Bomb") && !isTouching)
{
  //do bomb touching stuff here
}

then you could call your coroutine only on the first one and if bombs kill each other just have it destroy itself in the second if statement instead of destroying the other bomb, that way you won't have to worry about the state the other bomb is in when that is called

[hoary ginkgo]

Are you saying I should try that under the the OnCollisionEnter2D?

[compact knoll]

Yeah, that would simplify both methods since you wouldn't need a bunch of if statements in both. And you are already passing the collision into the coroutine so you can use Destroy(other.gameObject) instead of using the Find method since you already have a reference to it

Oh you're already doing that last bit for all but the player, but you can make that change for the player object too

[hoary ginkgo]

http://pastie.org/p/3DLq6uP3JYShWUHgRpfELa

Same Issue

Working the same as before though

For some reason the last collision is the only object I can destroy

[compact knoll]

You're also calling Destroy on this gameobject first which means the following lines aren't reachable, you need to call that last

[hoary ginkgo]

In the coroutine right?

[compact knoll]

yeah, in the link you sent, just move line 73 down to below the audio manager line, you also don't need to use the isTouching bool in the coroutine

just call the coroutine from within the if statements in your on collisionenter and pass the object you want to destroy rather than the collision

[hoary ginkgo]

Still behaving the same.

http://pastie.org/p/2SLDMGOfN3oh3DQxNUt0bx

[compact knoll]

basically you can change it to this

    public void OnCollisionEnter2D(Collision2D other)
    {
        if (other.gameObject.CompareTag("Player") || other.gameObject.CompareTag("Block"))
        {
            isTouching = true;
            StartCoroutine(DestroyObject(other.gameObject));
        }

        if (other.gameObject.CompareTag("Bomb") && !isTouching)
        {
            StartCoroutine(DestroyObject(gameObject));
        }
    }
    IEnumerator DestroyObject(GameObject other)
    {
        yield return new WaitForSeconds(delay);
        FindObjectOfType<AudioManager>().Play("Bomb Explosion");
        Destroy(other.gameObject);
        Destroy(gameObject);
    }

[hoary ginkgo]

Well hot damn

Thank you so much

[compact knoll]

Cuts down on most of the if statements and should behave the way you want

[hoary ginkgo]

I typically like to try and solve as many issues as I can on my own, Going to analyze that now that it is working and try and learn from it

[compact knoll]

Actually in that second if statement you can probably remove the tag check so it still dies from touching non tagged stuff

[hoary ginkgo]

Only game components are the player, bombs and blocks.

I am real close to publishing this project, will be my first one, Everything is functional, Just going through and cleaning up bugs like this.

Well, my first project in google play

Well, I got excited too soon

Got to add the onexit back in

Player was being destroyed if they collided

even after they were not touching anymore

[brittle smelt]

Is There a way to lock the movetowards function in only one axis?

[covert whale]

set the desired position for the other axis to be the same as transform.position

[brittle smelt]

thanks

[north wren]

I made a linerenderer which connects between 2 cubes but i want to make a new line and if it connects between these cubes

So how can i check if it connected between these 2 cubes?

something like this
if(line.SetPosition == pos1.position)

[desert cargo]

Can you not store which cubes it connects when you create the line?

Otherwise you can put colliders on either cube and do a Physics.OverlapBox with a small box at the end of each line, testing for which box they intersect with.

[north wren]

hmm ok ty

[blazing mica]

Does anyone know how to confine the edges of 2D Perspective camera? the cinamachine confiner works fine for Orthographic camera but not Perspective.

[twin terrace]

uhh idk if you can since perspective cams have different edges depending on distance

only way I can think of is a bit of math

perhaps there's some way to do that though

[blazing mica]

by math, do you mean like calculating if the frustum reaches a certain position, then stop moving?

[twin terrace]

uh

Let me make a quick drawing

[twin terrace]

perspective cam in 2d is like this

you can use trigonometric functions to calculate edge positions

but there's probably a simplier solution so search for that first

[blazing mica]

this sounds something that i would try to avoid 🥲 i think i will try to find alternative for my problem

[blazing mica]

i think i can complete the outer environment to compensate perspective camera

[unborn robin]

has anyone done anything with sprite shape where you set one of the vertecies to follow a moving game object?

[twin terrace]

Maybe you can also change camera's property that specifies the distance, then the white lines should be in proper position

[novel pewter]

Good Evening all, I've started adding in controller support for my 2D platformer and am having issues. Using the joystick horizontal to move my player causes him to sldie about the place, is there anything i can do to fix this?

Edit: I'm using the old input manager

[solar thicket]

do you mean they keep moving past where you expect them to? try GetAxisRaw or set your gravity really high in the input settings

by default, the input axes only gradually revert back to 0 when there is no input, based on how high the gravity is set

[novel pewter]

yeah they keep moving past were I expect them too. Setting the gravity higher has helped a lot, i'm gonna do some play testing

setting it to 300 helps a lot but after that there are no improvements and the player still slides about.

[hazy smelt]

Why does the game think my mouse is at this tile when it's actually pointing at the one to the right?

There's some kind of offset? Could it be camera-related?

[snow willow]

you'd have to share your code and how your tiles are placed etc.

[hazy smelt]

https://gdl.space/huwaqasici.cpp

Not sure if it's code-related though, maybe I'll ask in ui

[solar thicket]

If you don't want the gravity at all, use GetAxisRaw instead, which will always be the raw value without gravity. Beyond that I donno without seeing your code

[solar thicket]

i don't see any mouse-related code in there, how does the mouse know which tile it's over?

[hazy smelt]

It's in the inspector, my bad

[solar thicket]

hmmm...are you sure the target graphic is correct? maybe that tile's button highlighting is pointing to the other tile (an off by 1 error in the instantiation, maybe?)

i don't feel like the built in system would be wrong about which object your cursor is over, but it's also tricky to really know

if i were you i'd shoot a ray out instead of having every object be a button

[hazy smelt]

I swear it was working normally before, I don't know what I changed

Yeah I'll debug it again

[prisma ocean]

So I made a gameobject with a sprite mask and changed the scale to fit my purposes, but now when I add objects as children to it, they have strange scales. Because they represent generated planets, I need to change their position based on calculated distances. How will this affect that?

Or should the sprite just not be scaled like that?

[storm coral]

How would I go about calling a coroutine every time it finishes itself?

[craggy compass]

hi

im trying to make a flappy bird copy, basically

but unity aren't recognizing random.rangw

range*

[hoary ginkgo]

http://pastie.org/p/0aIecWLRnwioTChHMGGvug
So the first link when a bomb blows up it does in fact destroy the blocks, players and other bombs
Which is what I wanted
Only thing is when a bomb blows up another bomb, the second bomb does not play the animation
The second script I sent you, Plays the animation when it blows up a bomb, but it also plays it when a block and player blow up which doesn't make sense
http://pastie.org/p/0aIecWLRnwioTChHMGGvug
Sorry

Anyone tell me how to fix this? I have tried referencs comparing tags, can quite get it righ

right

[hollow crown]

Read the error.

[hollow crown]

Yes, and what are you passing Random.Range, and what does it take?

[craggy compass]

i gonna try anything, wait a minute

[storm coral]

why is it in quotes

it proboably thinks your trying to pass in a string

[craggy compass]

i made some advances, but it still not working

[storm coral]

what errors is it giving now

[acoustic verge]

check to ensure height is being set wherever it's supposed to be set.

[wide bloom]

This the appropriate channel for UIToolkit stuff?

[hybrid kernel]

are you sure the cinemachine confiner doesn't work for perspective cameras?

[lean estuary]

#📲┃ui-ux

[tidal grail]

i added a box collider on 2 squares in my 2d game and box collider to my player but whenever player collides with an edge it changes its "form"
something like this
https://gyazo.com/645fc343e0ea29bdff3f2c05be6ba8b8

[grand coral]

mark the colliders as trigger

then use OnTriggerEnter2D instead of OnCollisionEnter2D in your scripts

that might fix the issue

[fleet remnant]

nah, if he uses colliders to stop another thing from passing through him that can fuck it up. this is pong so a ball wouldnt stop on a trigger

[grand coral]

oh shit u right lmao

[fleet remnant]

you can make it so the rigidbody is freeze rotation so the gameobject doesnt rotate

[grand coral]

i forgot about the ball

[tidal grail]

with freeze rotation on, it doesnt collide at all just goes right thru it

nvm thanks

worked now

[next jetty]

Can someone help me? If raycast hit player - player dies. Line renderers renders a line, but unlike raycast, it bugs out and teleports randomly, when i jump over it.

[verbal canopy]

Hi everyone!
I'm making a 2d isometric game and I want to make the enemy chase the player (or target).
The chase part i got, but i can't make the enemy animation to sync with the movement (run walk-left animation when moving to the left, etc)

To walk towards the player, i use this to get the direction:

var direction = (_target.transform.position - transform.position).normalized;

But i needed to convert this to a Vector2.up, Vector2.down, Vector2.left or Vector2.right to be able to change the animation.

Any tips on how to do this? I don't seem to find anything on google, which leads me to believe that I'm doing something very basic in the wrong way.

[solar thicket]

Unity's vector page is good: https://docs.unity3d.com/Manual/VectorCookbook.html
Remember that 'Vector3.up' is literally just a vector3 with (0, 1, 0), down is (0, -1, 0) and that's true for each direction, so you might be able to just look at the axes and check their sign to get the data you need. Or a dot product would work.

[keen skiff]

alright so i'm trying to make a tile based on the tilemap when you click, but i've never coded with tilemaps before and have basically no idea what i'm doing. currently i'm having an error that's shown in the image. Does anyone have any way of doing this
(my code) https://hatebin.com/rbubwvbuua

[austere seal]

Can someone help me figure out why I keep getting an UnassignedReferenceException and NullReferenceException?

This will take a minute to explain

[hollow crown]

https://help.vertx.xyz/?page=programming/common-errors/runtime-exceptions/unassigned-reference-exception

[austere seal]

No I know exactly what the error is

the problem I'm having is that I'm literally setting it equal to something and it's still giving that error

[hollow crown]

You cannot get an UnassignedReferenceException without trying to use a field Unity is serializing that is unassigned

#854851968446365696 has code posting guidelines

[austere seal]

BossCollision.cs: https://hastepaste.com/view/PkV5P8EGCK

[verbal canopy]

Thanks for the tip!
The article inspired me develop the following solution: https://gist.github.com/brenordv/dee23e5f992577adf3b39ef449444b12

I use Vector2.SignedAngle to calculate the angle based on Vector2.Up, then i figure out which way to look, depending on the result.

[austere seal]

AdvanceDialogue.cs: https://hastepaste.com/view/NexWzjS7X

[hollow crown]

Going to have to see the errors

[austere seal]

Parameters.cs: https://hastepaste.com/view/pJ4q

yeah I'm getting to that

these are the errors I'm getting

[hollow crown]

Show the inspector of AdvanceDialogue

[austere seal]

Emitter0 and boss are supposed to be referenced via the BossCollision script

[hollow crown]

So Boss has nothing assigned. You attempt to assign something using BossCollision though, but when does that happen in relation to it being evaluated, and are there multiple AdvanceDialogues in the scene?

[austere seal]

There are multiple versions but they never are supposed to exist at the same time if all works correctly

[hollow crown]

Well it doesn't. That's the issue

[austere seal]

It happens in the Start() method of BossCollision, so after it's instantiated

[hollow crown]

At some point you have a AdvanceDialogue that has not had its boss field assigned before Update runs, that's all this is

you can add logs to figure out what's going wrong on your own

[austere seal]

how does AdvanceDialogue not have the boss field assigned at that point though

It should literally be assigned by BossCollision upon instantiation

[hollow crown]

I have no idea how your scene is set up

if there is an AdvanceDialogue without a boss collision this will happen

if there is a BossCollision on a disabled GameObject this will happen

[austere seal]

There's nothing else that accesses it, and AdvanceDialogue is only ever created in accordance with BossCollision's start method

[hollow crown]

If there is an exception thrown earlier in BossCollision.Start this will happen

[austere seal]

BossCollision is instantiated right before AdvanceDialogue, and is never disabled

the first error in my image is literally BossCollision throwing a NullReferenceException when I call gameObject

I cannot fathom how that would happen

[hollow crown]

It's not

it's preDialogue.boss = gameObject;

[austere seal]

yes

[hollow crown]

Only one thing on that line can throw an NRE

https://help.vertx.xyz/?page=programming/common-errors/runtime-exceptions/null-reference-exception

Access is denoted by the . character (member access), [] (array element or indexer access), or () (invocation.)
On the line throwing this exception, only variables that are being accessed via one of these methods are relevant, as only attempting to use a null variable will throw an NRE.

[austere seal]

Oh I think I figured it out give me a minute

Ok I fixed it

thank you

I was calling GetComponent instead of GetComponentInChild in the Start() method

so yeah, it was a problem with how the prefab was set up

[austere seal]

New issue

Instancing an object from a prefab and then trying to disable the instanced object later disables the prefab instead

[hollow crown]

Instantiate returns the instance, if it's not disabling the instance you're not using that

[austere seal]

In BossCollision.cs from above, line 65 sets the variable to the instanced object, and then line 87 attempts to disable it

So the variable should be the instance

it isn't throwing any exceptions or anything either

[hollow crown]

These line numbers don't align to what's in the above script

[austere seal]

uhhhhhhh

Let me check again, those line numbers are what VS gave me

Oh I changed the script

https://hastepaste.com/view/R9w060d

Lines 67 and 89

[hollow crown]

Well, it looks fine as far as I can see, though your logic is very confusing

Like... what's going on here:

emitters = new GameObject[emittersPrefabs.Length];
preDialogue.emitter0 = emitters[0];```

[austere seal]

Could you elaborate? is it because I don't comment or am I just coding weirdly

ah

[hollow crown]

emitters[0] is just null

[austere seal]

yes I realize, I was working on that while I sent the new code

[hollow crown]

and I'm a little unsure how in general you can get to instantiating anything into the emitters array if you're trying to access a value in it (that wouldn't be assigned yet) on line 66

[austere seal]

I'm accessing emittersPrefabs for the prefab to instantiate a clone of, which is then assigned to emitters

[hollow crown]

Only on the line after that

Which means somehow you'd have to manage to get past accessing something that doesn't exist

[austere seal]

ah

I revised it a minute ago so another script would access emitters[0], by the time that happens it does exist

the emitters are only supposed to exist after my dialogue closes, so my dialogue instantiates the first one right before destroying itself

I think I fixed it

Yeah, I figured it out, I think I've got these scripts completely finished now but I'll do more debugging later if I find problems

thank you again

I find it interesting that you can modify a prefab via a runtime script

that can lead to some weird problems if left unchecked by the game dev

[blazing mica]

From what I've experiencing so far, no, perspective camera cannot be properly confined by the space I've set in place.
I found this article about this issue but it's years ago, I couldnt manage to find a more updated info about this

https://forum.unity.com/threads/perspective-vcams-with-2d-confiners.508804/

[brittle smelt]

Is there a way to limit speed on a rigidbody?

[covert whale]

i don't know if there is a way built in but you could do something in fixed update like

if(rigidbody.velocity.magnitude > maxSpeed)
         {
                rigidbody.velocity = rigidbody.velocity.normalized * maxSpeed;

[brittle smelt]

thank you

[desert cargo]

Fyi you can use ClampMagnitude

(same thing)

[covert whale]

cool didn't know that

[dusky wagon]

I have a rail like the one shown in the picture for my game. Whenever an object on the rail comes from the left then it follows the three points from A to B to C. If it comes from the right direction its the same thing in reverse, so from C to B to A.

Now I want to make it so that if an object drops on the rail it snaps to it and starts moving on it. So if it comes from the yellow point and has velocity towards the right it will move from B to C, if it comes from the orange marker with velocity towards the right it will just go to C and the same thing in reverse if it was to have velocity towards the left

[dusky wagon]

There will also be different types of rails, some of them are more complex (e.g. a curve) and it would be good if I dont have to hardcode it for all of the different pieces, but I have no idea how I could detect the thing shown in this message

[prisma ocean]

Can I have sprites have an invariable size on an orthographic camera no matter the orthographic size? or would I have to manually scale them

[prisma ocean]

so if I had 2 objects at different distances, it would appear that they only got further away and not smaller

[mighty forum]

how do I create a meter that shows how high the rocket is in my game?

[grand coral]

you can change the height of a ui image in a script, so all you have to do is get a reference to the rocket in that script and then scale its position to fit the meter

if you need details lmk

[grand coral]

you might be able to calculate their proper scale in a script, but there isn't a simple button or option for that in the spriterenderer component afaik

[dark dagger]

I am building a game in unity that is a 2d Platformer using tilemaps for the platform and the background. I want to make it when the player goes up or the right or left that you always see the background without having to build the background so big. I know I saw in one tutorial on how to do it by making the background a child of the main camera, but the background was it's own object in the game and not a tilemap. Does anyone know how to do this with a background that is a tilemap?

[dusk yacht]

I'm in the unity timeline
how do I disable movement while the timeline is playing for my player

[snow willow]

Disable the player movement script

[dusky wagon]

You can probably do that same thing

If you make it a child object of the main camera it will always move with the camera if thats what you want

[dusk yacht]

How do I do that

[covert whale]

make a reference to the script then do script.enabled = false

[dusk yacht]

How do I do it with timeline tho

[covert whale]

if you mean in an animator timeline then you make a function that does this, then make an event trigger in the animation and set it to that function

[toxic pilot]

what is the standard way to change the skins of a 2d character and keeping the existing animations (e.g. run, walk will be same for all characters)?

[glad wagon]

hey im implementing a scoring system, Ive got my UI set up with a canvas and ive made an empty "ScoreKeeper" object in my hierarchy. Id like it to have a script attached which contains param: points per pickup, state: current score and on pickup it should increase the score and then the UI manager Update: should read the score from ScoreKeeper and update the scoreText does anyone know the best way i can go about this? its pretty basic just using a Player prefab and Coin prefabs

[covert whale]

you can make a singleton for the score keeper, and have a function in it which is called on pickup, and in that function you can add to the score and update the UI

this would be instead of having the UI check every Update, which wouldn't be necessary if the UI was updated whenever the score changes

[fleet knot]

Hello Community, I wanna ask a question, how to make camera projection like Dani "Balls?" Games? When you controll the balls the camera moving as trajectory,sorry for so long question and bad gramma🙏

[still tendon]

No idea for 2d but for 3d there is

[molten mesa]

how do i make my aspect ratio, for an android game, the same for every device?

[still tendon]

Does all devices have same ratio?

[formal crater]

I cant put these sprites into the animator, are they the wrong file type or something?

[snow willow]

Did you set them as sprites in the import settings?

[formal crater]

i got it to work! 😄

[hearty lake]

hi so i wanna make a button that when i click it a menu apears

[snow willow]

ok so just set the button on click to activate the menu GameObject

[hearty lake]

i dont know hot to make it activate that shi

[snow willow]

jsut drag in the object you want to activate

and set the function to GameObject -> SetActive

and check the box so it passes in true

Here start with this https://www.youtube.com/watch?v=kQ2Qc_0MIyI

[hearty lake]

but i dont wanna change scene

i just wanna make it visible

[abstract olive]

On the Button component, you can add the object you want to turn on in the OnClick events, and set it to active:"

That would be the "quickest and easiest" way to do it.

[hearty lake]

and how to make it invisible on start

[abstract olive]

Just turn it off in the hierarchy?

[distant sun]

How Can I create this mask? I try to use Slider component, but it is filled by stretching my child component

for example

[dark dagger]

I tried it out by creating a secondary grid and tilemap, deleted the old background, and made the new one a child of the main camera. It worked perfectly. Thank you for the advice.

[grand coral]

you can create a sprite mask and set a rectangular sprite as the mask, then change the height of the rectangular sprite to reveal more of the image

[honest python]

how do I get a 2D ui line in my 3D game?

[grave oracle]

you mean a text?

[honest python]

No just a 2D line in my 3D world

Cuz with line renderer it's rotated

Not directly facin the camera

[covert whale]

canvas, either overlay or camera space, and make a square image with a small Y scale

[honest python]

why a small Y scale?

also using a square is a bit awkward for making a line go from point A to point B

[covert whale]

so that the image is squished

you could also just increase the width

[covert whale]

i'm not sure but this isn't really a 2d thing so it may be better to ask in general code

[honest python]

oh alright

[mighty forum]

how do I create a meter that shows the hight of the rocket?

[covert whale]

there are tutorials for how to make a health bar, you can do the same but on the y axis, then enter the current height of the rocket and the max height of the rocket

[mighty forum]

what is the video called

?

[mighty forum]

can you send the link

[covert whale]

i'm not talking about a specific tutorial there's plenty out there

[mighty forum]

can you explain the last part

[covert whale]

instead of using the player's health and the player's maximum health which most tutorials do, just use the rocket's height and the rocket's maximum height

[mighty forum]

how do I I get the rocket height and maxium height?

[covert whale]

i don't know what your set up is like so i have no idea

[mighty forum]

if I send the project file will you help?

[covert whale]

not your entire project file

send the relevant scripts and screenshots if necessary to explain

[mighty forum]

this is the script that makes the rocket go up

When launch button is pressed, the rocket is launched

[covert whale]

can you have a look at #854851968446365696 for how to send code

and this doesn't look 2d to me it would probably belong in one of the other code channels

[simple needle]

"lunch"

[prisma ocean]

Ello, so uh I'm using a spritesheet (imported with multiple and sliced correctly) with these planet icons and applying them to sprite renderers, but the white-blue icons seem to have a tiny bit of the red star icons in them?

here's the import settings

[peak stirrup]

Do you have to use the pixel perfect camera to make pixels look right or is there another way?

[covert whale]

when you go into the sprite editor, you can choose custom and check that it's not overlapping, if it really isn't overlapping and that sprite really shows then it could be a bug so try re-importing / restarting unity

[glacial obsidian]

I can't get collisions to work

Forget my horrible graphics

when I start the ball falls because I have a ridgidbody2D on it

but it just falls straight through the ground which has a collider

[snow willow]

does the ball have a collider?

And is the collider on the ground 2D?

[glacial obsidian]

yes and yes

[snow willow]

show them

show the inspectors of the objects

[grave fox]

Help! Why isn't my collider triggering?

[snow willow]

• Does at least one of the two objects have a Rigidbody2D?
• Do both objects have 2D colliders?
• Is at least one of the colliders a trigger?
• Have you tired putting a Debug.Log in the function (outside the if statement) to make sure the code is being invoked?

[grave fox]

• The playerObject has a Rigidbody 2D
• Both objects indeed have 2D colliders
• The Pickup collider is set to trigger
• I haven't tested Debug.Log, will do that now

[snow willow]

also recommend:

if (collider.CompareTag("Ore"))``` instead of what you have

[grave fox]

Hasn't made any difference :/

[snow willow]

it's a minor performance benefit that's all

and less typing

anyway did you add the log statement?

[snow willow]

looks like it's working

[grave fox]

It's triggering the debug yeah, but why isn't it destroying?

[snow willow]

Obviously the ore is not tagged properly

[snow willow]

is that the object that has the collider?

or is the collider on a child object of that

[grave fox]

Yeah, that's the prefab

[snow willow]

?

Didn't answer my question - which GameObject has the collider?

[snow willow]

which GameObject is that

[grave fox]

The Ore

The pickup

[snow willow]

The same one as here? Or is it a child of this?

[grave fox]

Same one

[snow willow]

but wait

[grave fox]

Doesn't have any children

[snow willow]

the ORE has the PickupOre script?

Because that script seems to think that the object that it is colliding with is the ore

[grave fox]

Ahh does it need to go on the playerObject?

[snow willow]

yeah you have it backwards

you will get the player's collider in that function the way it is now

you always get the collider you collided with

not your own collider

[grave fox]

Man...

This all pretty new to me so forgive the amateur mistakes

[hearty anvil]

(Nvm, I found another solution to my problem!)

[compact blade]

its charming

[glacial obsidian]

no it's not

[compact blade]

Yes it is

Bro if there is an entire ass single player MMO with that kind of art style I play the shit out of it

[glacial obsidian]

bruh

[compact blade]

Just shitty pixel art The whole way that be hilarious

[glacial obsidian]

that's not even pixel art though lol

that's 5 seconds in MS paint

[prisma ocean]

I hope they are placeholders lmao

[glacial obsidian]

yeah I'm just messing around rn I'm not good enough to try to make a full game

[grave yarrow]

How can I spawn these in my game to be collectibles? I'm following inScope Studio RPG tutorial but i would like my items to appear in game and not spawn on key press

[covert whale]

what are in the scriptable objects?

[grave yarrow]

Haven't made prefabs yet cause I am not sure if that is the correct approach

[covert whale]

what are the differences between the different collectibles, you could just have one prefab that takes in an SO and sets its sprite / stats in its own script

[fleet remnant]

i mean you can follow the tutorial and just spawn them before hand and not on keypress? like what is the method of spawning u want

[grave yarrow]

there are three types - armour, weapon and potion. potions stack and armour and weapon are equipable.

[grave yarrow]

random spawn around my char on pressing space key

[fleet remnant]

so how is that different to him?

[covert whale]

you can follow the tutorial and see how it's spawned and then give random positions when they're instantiated

[fleet remnant]

u spawn them on keg press and just give them random positions

around ur radius

[grave yarrow]

He spawns them directly in the inventory

not on the ground

[fleet remnant]

o

well how does he spawn them as a prefab

later on

[covert whale]

oh so they're not supposed to be game objects just UI elements?

[grave yarrow]

in his tutorial no. but i need them as such

[fleet remnant]

u can make a generic base prefab that has a script that accepts a SO and sets all its values based on that

[grave yarrow]

do you have an example maybe? would need a pick up option as well

[covert whale]

if you want them to be picked up, have a prefab that takes in an SO, give it a collider2D and set it to trigger, then OnTriggerEnter check if it's a player and if so then spawn the SO in the player's inventory like it is in the tutorial

[grave yarrow]

have a prefab that takes in an SO,
Sorry for dumb question, but how do i do that ? 😅

[covert whale]

do all your SO's inherit from one base class?

[grave yarrow]

yes

[covert whale]

then have a public baseClass collectible where baseClass is the name of the class

then you can drag in that SO in the inspector

and have this script attached to a game object

and make that a prefab

[fleet remnant]

ye

[grave yarrow]

I add Trigger on that prefab right?

[covert whale]

yeah a collider with IsTrigger

then have something like

void OnTriggerEnter2D(Collision2D other)
{
    if(other.collider.gameObject.CompareTag("Player")
    {
        other.collider.gameObject.GetComponent<PlayerScript>().SpawnInInventory(collectibleType);
    }

}

[fleet remnant]

^or the other way around if u want

[grave yarrow]

so this would be good?

And i would have to do this for each of my items?

[covert whale]

yeah, add a collider with Trigger, and make it a prefab

[covert whale]

if you make it a prefab all you'll have to do is drag it into the scene and change the SO

and i assume you'll also want it to have some sprite, so you can give it a sprite renderer and change the sprite based on the SO

[grave yarrow]

any way to automate changing the SO with the script when I spawn them?

because i need to spawn X different items with my random spawner

[covert whale]

spawn the prefab with instantiate, and since collectible is public you can change that to whatever SO

[grave yarrow]

So pick an item to spawn, change SO accordingly and spawn that prefab?

[covert whale]

pick an item, spawn the prefab, and change the SO of the spawned prefab

[grave yarrow]

so two highlighted lines go after Instantiate?

[covert whale]

Instantiate returns the spawned prefab, so it would be like

GameObject spawned = Instantiate(//etc)
spawned.GetComponent<>//so on

[grave yarrow]

Like this then?

[vocal condor]

How're you declaring ItemPrefab in the script?

If it's of type CollectableScript you would not need to call Get Component.

[covert whale]

that works, but you wouldn't need to do GetComponent twice, just set what Icon is in the Start of the CollectableScript

since you've set what Collectable is and that's what it uses to get the Icon

[grave yarrow]

As public GameObject ItemPrefab;

[vocal condor]

Why not public CollectableScript?

[covert whale]

it's got more components on it like a collider and sprite renderer

[vocal condor]

You could always fetch those components.

Game Object reference should not be used unless you're only using it for it's Game Object functionality.

Best to declare as the type most used; less component calls - they're quite expensive if called a lot.

You'd have direct access to GameObject by simply using the gameObject property.

If needed 🤷‍♂️

[covert whale]

wouldn't instantiating from a reference of CollectableScript spawn just a game object with that script

[vocal condor]

Nope

It's still the same object simply being referenced as it's component type.

Which would simply give you access to the component's members in addition to having access to the specific object; prefab.

[covert whale]

oh ok

[covert whale]

so yeah in this case it would be better to do public CollectableScript ItemPrefab;

CollectableScript spawned = Instantiate(//etc);
spawned.Collectable = //etc

to avoid a GetComponent call

[vocal condor]

Looks like a lot of calls are being made; more than once.

it would just be: ```cs
var spawned = //...
spawned.Collectable = ToSpawn;
spawned.Icon = ToSpawn.Icon;

[grave yarrow]

Will try it in a bit, thanks 👍

It's working! 😮

Thank you guys so much!

😄

[covert whale]

nice

[grave yarrow]

welp new problem 🙃

When I Try to add to inventory Inventory.Instance.AddItem(Collectable);

public void AddItem(Item item) {
        if (item.StackSize > 0) {
            if (PlaceInStack(item)) return;

        }
        PlaceOnEmptySlot(item);
    }

[covert whale]

what is null? is it Instance, Collectable or one of the variables in AddItem?

[grave yarrow]

Seems like Instance is null

Because if I remove that line and print the name of the Collectable it works

[covert whale]

if it's a singleton, you could be forgetting to set Instance = this; or you're doing it after you try to use AddItem

if you're setting the instance and trying to use it both in Start, then it can be out of order

[grave yarrow]

If I set Inventory Active in the scene in works, huh

[grave yarrow]

this is my singleton

private static Inventory _instance;
    public static Inventory Instance {
        get {
            if (_instance == null) {
                _instance = FindObjectOfType<Inventory>();
            }
            return _instance;
        }
    }

[covert whale]

if this is on your Inventory script, then why do you need to do FindObjectOfType, you could use the this keyword?

[grave yarrow]

this doesn't work with static , not sure how else to do it

if it's not static then Inventory.Instancecannot be done

[covert whale]

non static script, with a static variable called Instance

then set instance = this

in Awake is generally where people do it

[grave yarrow]

public static Inventory Instance {
        get { 
            return _instance;
        }
    }

    private void Awake()
    {
        if (_instance != null && _instance != this)
        {
            Destroy(this.gameObject);
        }
        else
        {
            _instance = this;
        }
    }

like this?

[still tendon]

Hey Guys, So I am making a game where the player is a robot whose battery is broken and the player has to keep it charged and I was working on the Charging Mechanic and I used Physics2D.OverLapCircle() for it.
But for some reason, it always stays "true" even when the player/robot is not getting detected by the station (Charging Station)

public class ChargingStationScript : MonoBehaviour
{
    [Header("References")]
    [SerializeField] private Transform chargingStationTransform;
    
    [Header("Script References")] 
    [SerializeField] private PlayerBatteryScript _playerBatteryScript;
    
    [Header("Main Variables")]
    [SerializeField] private float chargingSpeedRate;
    [SerializeField] private float chargingRangeRadius;
    [HideInInspector] public static bool isCharging;

    private void Update()
    {
        //Checking if Player is in range of the Charging Station
        isCharging = !Physics2D.OverlapCircle(
                new Vector2(chargingStationTransform.position.x, chargingStationTransform.position.y),
                chargingRangeRadius);

        //Charging Player's Battery if in range of the Charging Station
        if(isCharging)
            _playerBatteryScript.batteryCapacity += chargingSpeedRate * Time.deltaTime;
        
        Debug.Log(isCharging);
    }
}```

This is the Script for the Charging Station... Can anyone help me out?

[covert whale]

that seems good

now you'll need to have the game object this is attached to be active

and you should only access it in Start and not in Awake as instance may not be set then

[covert whale]

currently you have no layermask, so if there's a collider attached to this game object it could definitely be detecting that

you can debug this by setting the result to a collider2d and logging the name of it

[still tendon]

Ya, I got it.... I am stupid

Thanks Man

[still tendon]

But, Is there a way to view, the OverLapCircle... Like the Outline of the Circle?

Cuz I want to fine-tune the Range of the "Charging Station"

[covert whale]

there's Gizmos.Drawsphere or draw wire sphere
https://docs.unity3d.com/ScriptReference/Gizmos.DrawSphere.html
you can call this in OnDrawGizmos, make sure Gizmos is on and pass in the same variables as for the overlap circle

[still tendon]

Ok Thanks Again!

[covert whale]

np

[snow willow]

no easy way really

best solution i've come up with is have several reference points inside one of the objects and check if they're all inside the other one

it won't be perfect though

collision.bounds is not going to be very accurate either

You should use this for checking if a point is in a collider https://docs.unity3d.com/ScriptReference/Collider2D.OverlapPoint.html

assuming collision is a Collider2D, yes

[grave yarrow]

so after doing all this , my tilemap colliders stopped working? anyone has any idea why?

[covert whale]

i don't think anything was done to do with the player or the tilemap, but check that there's a collider on both the tilemap and player, they're both not trigger and that one has a rigidbody (probably the player)

[grave yarrow]

tilemap inspector

player insp

[covert whale]

player's is set to IsTrigger

i don't think it'll collide

[grave yarrow]

yep that was it. 🤦‍♂️

[covert whale]

you'll probably find that your items won't get trigger messages if they're not set to IsTrigger or if they don't have a script with OnTriggerEnter on them

[grave yarrow]

They worked, I checked haha I was scared they wouldn't

[covert whale]

great

[grave yarrow]

Thanks again! 😄

[willow tiger]

why is my character in my game falling through the ground?

[grand coral]

probably either the character or the ground or both don't have valid colliders

or rigidbodies

[willow tiger]

How do I fix that?

[grand coral]

add a collider or a rigidbody component, respectively

[willow tiger]

Ok, i'll try it out.

[prisma ocean]

Anyone know how I would generate an elliptical ring mesh over which I could tile a sprite? For example I want to make an asteroid belt that appears around a star like the line renderer used for the orbit of this planet, but as a tiled texture

[snow willow]

You can draw a tiled texture with a line renderer

[prisma ocean]

_>

[snow willow]

Make an unlit material with your texture

set the line renderer to draw it tiled

[snow willow]

If you look at this video the line I'm drawing with the blue circles is done with that technique

https://www.youtube.com/watch?v=rchKPAZcruk

(ignore the rest of the video)

[prisma ocean]

hmm

lemme give that a go

er

kinda makes a solid colour haha

[snow willow]

something's off

play with the tiling in the material

[prisma ocean]

Isn't it because there are 64 vertices?

[snow willow]

waht does your texture look like

and hwo did you set up the material

[snow willow]

ok and your line renderer?

[prisma ocean]

the points for the vertices are generated during runtime

[snow willow]

Run the game and then while it's drawn can you go to your material and start playing with the Tiling settings on your material?

[prisma ocean]

aight

[snow willow]

try setting it to very small numbers on x and/or y like .05

see if you can get it looking decent

and then also try setting it to high numbers

I don't remember which is correct

I seem to remember that when I did the line effect in the video above, I had to dynamically set the tiling for the material to get the shape looking correct based on the current length of the line

something like setting the tiling to 1 / lineLength

[prisma ocean]

well

I went all the way from 0.01 to 1000

no difference

just a solid white colour

[snow willow]

🤔

[prisma ocean]

lol that's interesting

unlit transparent with repeat per segment

OH

😄

just needed to change this in the sprite import settings lol

[snow willow]

nice you got it

sorry yeah there's a lot of settings that need to be right 🤔

[prisma ocean]

Time to draw an actual sprite now and make an asteroid belt object 😮

And figure out how to make an elliptical collider lol

[glacial sky]

Hi guys, I'm trying to make spawn zones with PolygonColider2D. I use raycast, which detects the colider, but it detects the colider as if it was as big as camera.
Does anyone know why this is happening? (the script is attached to spawnZone game object)
btw I'm new to Unity, so I might not know some important basic stuff yet

idk if the code could help you, but anyway here it is

public class spawn_entity : MonoBehaviour
{
    public GameObject enemyPrefab;
    public PolygonCollider2D coll;

    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            Vector3 mousePosVect3 = Input.mousePosition;
            Vector2 mousePos;
            mousePos = Input.mousePosition;
            mousePos = Camera.main.ScreenToWorldPoint(mousePos);
            // Cast a ray straight down.
            RaycastHit2D hit = Physics2D.Raycast(transform.position, -Vector2.up);

            // If it hits a collider
            if (hit.collider.isTrigger && hit.collider.gameObject.name == "spawnZone")
            {
                if (hit.collider.bounds.Contains(mousePosVect3)) Debug.Log("in bounds"); //this "if" result comes out as false
                GameObject a = Instantiate(enemyPrefab) as GameObject;
                a.transform.position = new Vector2(mousePos.x, mousePos.y);
            }
        }
    }
}```

[covert whale]

do you have any other colliders?

because your raycast could be hitting those as you don't have a layer mask

[glacial sky]

yes, I have tilemap colider, but it's not overlaping

according to Debug.Log function

[covert whale]

so it could be because .bounds on a polygon collider aren't accurate

maybe try with a box collider and see if that helps

[glacial sky]

ok, will try

nope, it's the same

[lusty olive]

rb.MovePosition(rb.position + movementPosition * dashDistance);

Why does this dash not work?
rb = rigidbody2D
movementPosition are the axis inputs in a vector2
dashDistance is a simple float

[turbid heart]

is dashDistance 0?

[lusty olive]

Already found the issue, I put it in Update instead of FixedUpdate.

[snow willow]

When doing a Raycast in 2D from mouse position you should be using Physics2D.GetRayIntersection()

Not Raycast

[glacial sky]

Thank you, will try that

[mint oyster]

a

[honest basin]

Hello. I wanted to ask if you people could help me with some quick 'AI' for unity and I tried to write some code for it, despite having minimal knowledge about it. I'll send it after this message, but I would like to ask how I should make an actual 2d NPC AI that moves around and still tries to avoid objects and not just walk right into some wall for example. Here's the code:

    [SerializeField]
    float speed;
    [SerializeField]
    float range;
    [SerializeField]
    Vector2 maxDistance;
    public Rigidbody2D rb;
    public float p = 1;
    private bool collided;
    private bool A;

    public Vector2 difference;
    public Vector2 diff;
    public Vector2 Adj;
    public Vector2 length;
    public Vector2 threshold = new Vector2(2f, 2f);

    void Start()
    {
        SetNewDestination();
        StartCoroutine(Thing());

    }

    private void FixedUpdate()
    {
        if (A)
        {
            rb.velocity = speed * Time.deltaTime * (maxDistance - Adj * 0b1100100);
        }

        else
        {
            rb.velocity = speed * Time.deltaTime * maxDistance;
        }
    }

    public void OnCollisionEnter2D(UnityEngine.Collision2D collision)
    {
        collided = true;
        StartCoroutine(Ahmed());
    }

    {
        if (collision2.gameObject.CompareTag("avoidObj"))
        { 
            A = true;
            difference = collision2.gameObject.transform.position - rb.transform.position;
            length = new Vector2(Mathf.Abs(difference.x), Mathf.Abs(difference.y));
            AwaySee();
        }
    }
    public void OnTriggerExit2D(Collider2D collision2)
    {
        if (collision2.gameObject.CompareTag("avoidObj"))
        {
            A = false;
        }
    }

    void AwaySee()
    {
        if (length.x < threshold.x || length.y < threshold.y)
        {
            Adj = difference;
            diff = threshold - length;
            Adj = Adj * diff;
        }
    }

    IEnumerator Thing()
    {
        for (int i = 0; i < 1000; i++)
        {
            p = Random.Range(1, 3);

            if (p == 1)
            {
                speed = 0b0;
                yield return new WaitForSeconds(Random.Range(0b1, 0b1100100));
                SetNewDestination();
            }

            else if (p == 0b10)
            {
                speed = 0b10;
                yield return new WaitForSeconds(Random.Range(0b1, 0b1011010));
                SetNewDestination();
            }

            speed = 0x2;
            yield return new WaitForSeconds(Random.Range(0.05f, 0b101));
        }
    }```

    {
        maxDistance = new Vector2(Random.Range(-0b1100100, 0b1100100), Random.Range(-0b1100100, 0b1100100));
    }

    public IEnumerator Ahmed()
    {
        if (collided)
        {
            speed *= -0b1;
        }
        yield return new WaitForFixedUpdate();
    }
}

[sinful portal]

does any1 know a way of making a smooth sprite transition? sort of like how terraria does it with the biome backgrounds?

[compact knoll]

i haven't played terraria in a minute, but doesn't it just fade one background out while the other fades in? that would just require lerping the alpha channel of the SpriteRender.color

[sinful portal]

ohh... i forgot i could do that... thx

[dire kraken]

Hey im having some issues with some code, basically I want it to be so I click a character then he reacts and a score is added, heres the MESS of a script I got lol https://gdl.space/tasavacete.cs

its stored in the canvas

i think I screwed up hard and am kinda a nooba t it so ye

[compact knoll]

you are checking for input in Start. You need to do that in Update instead

actually that whole thing is super not good. you should consider going through the Intro to C# course pinned in #💻┃code-beginner so you can better understand how classes and variables and stuff work

[ancient path]

real quit here

[sudden dagger]

I'm having trouble adding a knockback effect to my game. I'm using AddForce() and trying to adjust the x position based on which side of the collider is hit. It generally works. I'd say 85-90% of the time it works exactly how I want but the other 10-15% of the time the knockback ends up being a knock-forward for some reason. I'm unsure exactly why but I'm very new to Unity so I'm hoping it's something easy I'm missing. Here's a gist of my class. https://gist.github.com/brandoncordell/ece347156beec387cf4f50bf139dbe58

[whole quartz]

I see you using AddForce, but also transform.Translate, the latter of those two will completely disregard physics, think of it as a mini teleport

[still tendon]

Hey i have a problem with my (thats the problem idk where it is) that my 2d box collidor turns of and on every second. I think its a problem with my crouch

[compact oriole]

solution: DEBUGGING

[still tendon]

D

do we have to talk abt it again?

google this: 2D box collidor turns of and on every second.
and see if u get a helpfull solution

answer: no!

[abstract olive]

Because of course you won't find it. It turning off and on isn't a general issue. There is no "make sure the turn off and on option isn't selected."

You said yourself you think it's a problem with your crouch, so start debugging that code. Use logs to track what's happening.

And start back tracking through your code. See where you tell the collider to turn off and on, and go back a step to what calls that and why.

[still tendon]

But i followed a tutorial so thats not a porblem with any sort of wrong code or checkings

[abstract olive]

100% of the time, people who claim to have followed a tutorial actually didn't. Assuming you're only following the tutorial and not adding anything custom on top.

But anyway, there's nothing anyone here can do based off your question without more information. You need to be more specific about your implementation and such.

[late viper]

you just had an issue where you claimed that you followed the tutorial when in fact you didn't. You should know by now mistakes happen

[still tendon]

ye

[pallid spade]

So I was making my first 2d game but every time my character falls through the floor but I have all of the colliders on my character, I don't know what to do?

[covert whale]

do you have a collider on the floor and does the player have a rigidbody

[pallid spade]

the player has a ridged body but I think the floor does not

[compact knoll]

only the player would need a rb2d. both do need 2d colliders though

[covert whale]

does the floor have a collider

[pallid spade]

no

[covert whale]

it'll need a collider

[pallid spade]

so do i give "tilemap" or "Grid" a 2d collider

[compact knoll]

you'll likely want a Tilemap Collider on the tilemap object

[covert whale]

give the same object that has a tilemap component a tilemap collider and a composite collider, and check 'used by composite' on the tilemap collider

[pallid spade]

thank you it works

[inner bone]

yesterday in animation i said that the animation didn't play on entering a scene which i managed to fix yet now the player does not work

[echo sierra]

    {
        if(timeBtwAttack <= 0)
        {
            if (Input.GetKeyDown(KeyCode.LeftArrow))
            {
                Attack();
                timeBtwAttack = startTimeBtwAttack;
            }
            if (Input.GetKeyDown(KeyCode.RightArrow))
            {
                Attack();
                timeBtwAttack = startTimeBtwAttack;
            }
           
            else
            {
                timeBtwAttack -= Time.deltaTime;
            }
        }

is there a better way on doing this so i dont need to repeat everything?

[snow willow]

KeyCode[] keys = new KeyCode[]{ KeyCode.LeftArrow, KeyCode.RightArrow };
bool keyDown = false;
foreach (KeyCode k in keys) keyDown |= Input.GetKeyDown(key);

if (keyDown) {
  Attack();
  timeBtwAttack = startTimeBtwAttack;
}```
Add however many keys you want to that array.

Wrote that on my phone so bear with me 🤣

Best to put that array declaration outside the method too.

[covert whale]

there's also
https://docs.unity3d.com/ScriptReference/Input.GetAxis.html

and you can check if this is not 0

[echo sierra]

how would I exactly right this? when I type the word 'foreach' it says that its an invalid token

sorry I dont know much in coding

[still tendon]

Hello i am trying to make a top down movement script but i am getting errors?

public class PlayerMovement : MonoBehaviour
{
    public float moveSpeed = 5f;
    
    public Rigidbody2D rb;

    Vector2 movement;

    // Update is called once per frame
    void Update()
    {
        movement.x = Input.GetAxisRaw("Horizontal");
        movement.y = Input.GetAxisRaw("Vertical");
    }

    void FixedUpdate()
    {
        rb.MovePosition(rb.position + movement * movespeed * Time.fixedDeltaTime):
    }
}

[covert whale]

so what're the errors

[still tendon]

Assets\scripting\PlayerMovement.cs(18,82): error CS1002: ; expected
and
Assets\scripting\PlayerMovement.cs(18,82): error CS1513: } expected

[covert whale]

configure your ide #854851968446365696

those should be underlined in red

[still tendon]

what is ide i am new to all of this